CN119907572A

CN119907572A - Display panel, display device, and method for manufacturing display panel

Info

Publication number: CN119907572A
Application number: CN202411103292.1A
Authority: CN
Inventors: 周志伟; 张金方; 李重君; 张露
Original assignee: Vicino Technology Co ltd; Hefei Visionox Technology Co Ltd
Current assignee: Vicino Technology Co ltd; Hefei Visionox Technology Co Ltd
Priority date: 2024-08-12
Filing date: 2024-08-12
Publication date: 2025-04-29

Abstract

The present application discloses a display panel, a display device and a method for preparing a display panel. The display panel has a first display area and a second display area. The first display area is arranged around at least a portion of the second display area. Light can pass through the second display area to reach the photosensitive component, thereby improving the photosensitivity effect of the display panel. The display panel also includes a substrate, an isolation structure and a light-emitting layer. The isolation structure includes a first layer and a second layer, and the first layer and the second layer are stacked to form an isolation structure. When preparing the light-emitting layer, the light-emitting layer is difficult to connect at the edge of the isolation structure, and is broken to form mutually disconnected light-emitting units. The ratio of the peripheral extension distance of at least part of the light-emitting units in the first display area to the peripheral extension distance of the light-emitting units in the second display area is 90% to 110%, so that the overlap area of the first electrode and the isolation structure at two positions with equal extension distances is similar, thereby improving the brightness uniformity of the first display area and the second display area, thereby improving the performance of OLED display products.

Description

Display panel, display device and preparation method of display panel

Technical Field

The application relates to the field of display, in particular to a display panel, a display device and a preparation method of the display panel.

Background

Organic LIGHT EMITTING (OLED) and flat display devices based on light emitting Diode (LIGHT EMITTING) technology have been widely used in various consumer electronic products such as mobile phones, televisions, notebook computers, and desktop computers, because of their advantages such as high image quality, power saving, thin body, and wide application range.

However, the service performance of the current OLED display product needs to be improved.

Disclosure of Invention

The embodiment of the application provides a display panel, a display device and a preparation method of the display panel, aiming at improving the service performance of an OLED display product.

An embodiment of a first aspect of the application provides a display panel, which is provided with a first display area and a second display area, wherein the first display area is adjacent to the second display area, the display panel further comprises a substrate, an isolation structure is arranged on one side of the substrate and surrounds the isolation structure to form an isolation opening, a light-emitting layer is arranged on one side of the substrate and comprises a light-emitting unit arranged on the isolation opening, the isolation structure comprises a first layer and a second layer arranged on one side of the first layer, which is far away from the substrate, the front projection of the first layer on the substrate is positioned in the front projection of the second layer on the substrate, the distance between the front projection edge of the first layer on the substrate and the front projection edge of the second layer on the substrate is an extension distance, and the ratio of the extension distance of at least part of the periphery of the light-emitting unit in the first display area to the extension distance of the periphery of the light-emitting unit in the second display area is 90% -110%.

According to an embodiment of the first aspect of the present application, at least part of the light emitting units in the first display area extend over the same distance as the light emitting units in the second display area.

According to any one of the foregoing embodiments of the first aspect of the present application, the light emitting unit includes a first light emitting unit, and in the first display area, an extension distance of a peripheral side of the first light emitting unit is a first extension distance, and in the second display area, an extension distance of a peripheral side of the first light emitting unit is a second extension distance, and the first extension distance is equal to the second extension distance.

According to any one of the foregoing embodiments of the first aspect of the present application, the light emitting unit includes a second light emitting unit having a color different from that of the first light emitting unit, and in the first display area, an extension distance of a peripheral side of the second light emitting unit is a third extension distance, and in the second display area, an extension distance of a peripheral side of the second light emitting unit is a fourth extension distance, and the third extension distance is equal to the fourth extension distance.

According to any one of the foregoing embodiments of the first aspect of the present application, the light emitting unit includes a third light emitting unit having a color different from that of the first light emitting unit and the second light emitting unit, and in the first display region, an extension distance of a peripheral side of the third light emitting unit is a fifth extension distance, and in the second display region, an extension distance of a peripheral side of the third light emitting unit is a sixth extension distance, and the fifth extension distance is equal to the sixth extension distance.

According to any one of the foregoing embodiments of the first aspect of the present application, the isolation structure includes a first isolation structure located in the first display area and a second isolation structure located in the second display area, the first isolation structure encloses to form a portion of the isolation opening and the first light-transmitting opening, and the second isolation structure encloses to form a portion of the isolation opening and the second light-transmitting opening.

According to any one of the foregoing embodiments of the first aspect of the present application, the front projection area of the first light-transmitting opening on the substrate is a first area, the front projection area of the second light-transmitting opening on the substrate is a fourth area, the ratio of the first area to the area of the first display area is a first ratio, the ratio of the fourth area to the area of the second display area is a second ratio, and the first ratio is equal to the second ratio.

According to any one of the foregoing embodiments of the first aspect of the present application, the orthographic projection area of at least one of the plurality of first light-transmitting openings on the substrate is equal to the orthographic projection area of at least one of the plurality of second light-transmitting openings on the substrate.

According to any one of the foregoing embodiments of the first aspect of the present application, the number of first light-transmitting openings per unit area of the first display area is equal to the number of second light-transmitting openings per unit area of the second display area.

According to any one of the foregoing embodiments of the first aspect of the present application, the display panel further includes a first electrode layer disposed on a side of the light emitting layer facing away from the substrate, the first electrode layer including a first electrode disposed on the isolation opening, the first electrode being electrically connected to the isolation structure.

According to any of the foregoing embodiments of the first aspect of the present application, the orthographic projection of the light emitting unit on the substrate is located within the orthographic projection of the first electrode on the substrate.

According to any of the foregoing embodiments of the first aspect of the present application, the light emitting unit is spaced apart from the isolation structure.

According to any of the preceding embodiments of the first aspect of the present application, the first electrode layer further comprises a redundant electrode located within the first light-transmitting opening.

According to any of the foregoing embodiments of the first aspect of the present application, the redundant electrode is electrically connected to the isolation structure.

According to any of the foregoing embodiments of the first aspect of the present application, the light emitting layer further includes a redundancy unit located in the first light-transmitting opening, and the redundancy electrode is disposed to cover the redundancy unit.

According to any of the foregoing embodiments of the first aspect of the present application, a packaging unit is disposed in the first light-transmitting opening, and the packaging unit is located on a side of the redundant electrode facing away from the substrate.

According to any of the foregoing embodiments of the first aspect of the present application, the light-emitting device further includes a first encapsulation layer disposed on a side of the light-emitting layer facing away from the substrate, the first encapsulation layer including an encapsulation portion disposed in the isolation opening.

According to any of the foregoing embodiments of the first aspect of the present application, the first packaging layer further includes a packaging unit located in the first light-transmitting opening, the packaging unit is located at a side of the redundant electrode facing away from the substrate, and the packaging unit is spaced from the packaging portion.

According to any of the preceding embodiments of the first aspect of the present application, the material of the first encapsulation layer comprises an inorganic material.

According to any one of the foregoing embodiments of the first aspect of the present application, the display panel further includes a second encapsulation layer located on a side of the first encapsulation layer facing away from the substrate, and a third encapsulation layer located on a side of the second encapsulation layer facing away from the substrate.

According to any of the foregoing embodiments of the first aspect of the present application, a portion of the second encapsulation layer fills the second light-transmitting opening.

According to any of the foregoing embodiments of the first aspect of the present application, the material of the second encapsulation layer comprises an organic material.

According to any of the preceding embodiments of the first aspect of the present application, the material of the third encapsulation layer comprises an inorganic material.

According to any of the preceding embodiments of the first aspect of the application, the first layer comprises an electrically conductive material.

According to any of the preceding embodiments of the first aspect of the application, the second layer comprises a conductive material or an insulating material.

According to any of the foregoing embodiments of the first aspect of the application, the first layer and the second layer each comprise a metallic material, and the materials of the first layer and the second layer are different.

According to any of the foregoing embodiments of the first aspect of the present application, the isolation structure further includes a third layer located on a side of the first layer facing the substrate, and the orthographic projection of the first layer on the substrate is located within the orthographic projection of the third layer on the substrate.

According to any one of the foregoing embodiments of the first aspect of the present application, the display panel further includes a pixel defining layer disposed on the substrate, the pixel defining layer including a pixel defining portion and a pixel opening surrounded by the pixel defining portion, the pixel opening communicating with the isolation opening.

According to any one of the foregoing embodiments of the first aspect of the present application, the display panel further includes a second electrode located between the substrate and the pixel defining layer, and the second electrode is exposed from the pixel opening.

According to any one of the foregoing embodiments of the first aspect of the present application, the pixel defining layer is exposed by the first light-transmitting opening and the second light-transmitting opening.

According to any of the foregoing embodiments of the first aspect of the present application, the pixel defining layer is in contact with the redundant electrode in the first light-transmitting opening, and the pixel defining layer is in contact with the second encapsulation layer in the second light-transmitting opening.

The embodiment of the application provides a display panel, which is provided with a first display area and a second display area, wherein the first display area and the second display area are adjacently arranged, the display panel further comprises a substrate, an isolation structure is arranged on one side of the substrate and surrounds the isolation structure to form an isolation opening, a light-emitting layer is arranged on one side of the substrate and comprises a light-emitting unit arranged on the isolation opening, the isolation structure comprises a first isolation structure arranged on the first display area and a second isolation structure arranged on the second display area, the first isolation structure surrounds the first isolation structure to form a part of isolation opening and a first light-transmitting opening, the second isolation structure surrounds the part of isolation opening and the second light-transmitting opening, the orthographic projection area of the first light-transmitting opening on the substrate is a first area, the orthographic projection area of the second light-transmitting opening on the substrate is a fourth area, the ratio of the first area to the first display area is a first ratio, the ratio of the fourth area to the second display area is a second ratio, and the ratio of the first ratio to the second ratio is equal.

According to an embodiment of the second aspect of the present application, the isolation structure includes a first layer and a second layer located on a side of the first layer facing away from the substrate, wherein the orthographic projection of the first layer on the substrate is located within the orthographic projection of the second layer on the substrate, and a distance between an orthographic projection edge of the first layer on the substrate and an orthographic projection edge of the second layer on the substrate is an extension distance, and extension distances of the peripheral sides of the light emitting units with the same color are the same in the first display area and the second display area.

According to any one of the foregoing embodiments of the second aspect of the present application, the display panel further includes a first electrode layer disposed on a side of the light emitting layer facing away from the substrate, the first electrode layer including a first electrode disposed on the isolation opening, the first electrode being electrically connected to the isolation structure.

According to a second aspect of the present application, in any of the foregoing embodiments, the orthographic projection of the light emitting unit on the substrate is located within the orthographic projection of the first electrode on the substrate.

According to any of the foregoing embodiments of the second aspect of the present application, the light emitting unit is spaced apart from the isolation structure.

According to any of the foregoing embodiments of the second aspect of the present application, the first electrode layer further includes a redundant electrode located within the first light-transmitting opening.

According to any of the foregoing embodiments of the second aspect of the present application, the redundant electrode is electrically connected to the isolation structure.

According to any of the foregoing embodiments of the second aspect of the present application, the light emitting layer further includes a redundancy unit located in the first light transmitting opening.

According to any of the foregoing embodiments of the second aspect of the present application, a packaging unit is disposed in the first light-transmitting opening, and the packaging unit is located on a side of the redundant electrode facing away from the substrate.

According to any of the foregoing embodiments of the second aspect of the present application, the second light-transmitting opening is not provided therein with a redundant electrode and a redundant cell.

An embodiment of a third aspect of the present application provides a display device including the display panel of any one of the above embodiments.

An embodiment of a fourth aspect of the present application provides a display panel having a first display area and a second display area, the first display area being disposed adjacent to the second display area, the method comprising:

Preparing an isolation structure on the substrate, enclosing the isolation structure to form an isolation opening, and positioning a first layer and a second layer on one side of the first layer away from the substrate, wherein the orthographic projection of the first layer on the substrate is positioned in the orthographic projection of the second layer on the substrate;

The method comprises the steps of preparing a light-emitting layer on a substrate, wherein the light-emitting layer comprises light-emitting units positioned at an isolated opening, the distance between the orthographic projection edge of the substrate and the orthographic projection edge of the substrate of a first layer is an extension distance, and the ratio of the extension distance of at least part of the light-emitting units in a first display area to the extension distance of the light-emitting units in a second display area is 90% -110%.

According to an embodiment of the fourth aspect of the present application, the isolation opening includes a first isolation opening, a second isolation opening, and a third isolation opening, the isolation structure further encloses a first light-transmitting opening located in the first display area and a second light-transmitting opening located in the second display area, and after the step of preparing the isolation structure on the substrate, the method further includes:

preparing a first electrode material layer and a first packaging material layer on a substrate, and performing patterning treatment on the first electrode material layer and the first packaging material layer to form a first electrode unit and a first packaging part which are positioned in a first isolation opening;

Preparing a second electrode material layer and a second packaging material layer on one side of the first packaging part, which is away from the substrate, and performing patterning treatment on the second electrode material layer and the second packaging material layer to form a second electrode unit and a second packaging part which are positioned at a second isolation opening;

Preparing a third electrode material layer and a third packaging material layer on one side of the second packaging part, which is away from the substrate, and performing patterning treatment on the third electrode material layer and the third packaging material layer to form a third electrode unit and a third packaging part which are positioned at a third isolation opening, and a redundant electrode and a packaging unit which are positioned at a first light transmission opening.

According to the display panel provided by the embodiment of the application, the display panel is provided with the first display area and the second display area, the first display area is arranged around at least part of the second display area, and light can reach the photosensitive assembly through the second display area, so that the photosensitive effect of the display panel is improved. The display panel further includes a substrate, an isolation structure, and a light emitting layer. The isolation structure comprises a first layer and a second layer which is positioned on one side of the first layer away from the substrate, the first layer and the second layer are arranged layer by layer to form the isolation structure, the orthographic projection of the first layer, which is close to the substrate, of the substrate is positioned in the orthographic projection of the second layer, the area of the second layer is larger than that of the first layer, the second layer covers the surface, close to the second layer, of the first layer, and at the moment, the first layer is recessed relative to the second layer towards the direction away from the isolation opening. When preparing the luminescent layer, the luminescent layer produces great drop at isolation structure edge, and first layer is for the concave setting of second layer, and the luminescent layer is difficult to connect at isolation structure edge to take place the fracture, the luminescent layer fracture forms the luminescence unit of mutual disconnection, thereby reduces the carrier in the luminescent layer's crosstalk, improves display panel's display effect, and prepares the luminescence unit and can need not to adopt accurate mask plate, can reduce the development and the use of accurate mask plate, reduce manufacturing cost. The extending distance of the peripheral side of at least part of the light emitting units in the first display area is 90% -110% of the extending distance of the peripheral side of the light emitting units in the second display area, so that the extending distance of the peripheral side of at least part of the light emitting units in the first display area is similar to the extending distance of the peripheral side of the light emitting units in the second display area, the lap joint areas of the first electrodes at two positions with similar extending distances and the isolation structure are similar, the lap joint resistances of at least part of the first electrodes and the isolation structure of the first display area and the second display area are similar, the problem that the lap joint resistances of at least part of the first electrodes and the isolation structure of the first display area and the second display area are large due to the fact that the extending distance of the peripheral side of at least part of the light emitting units in the first display area and the extending distance of the peripheral side of the light emitting units of the second display area are large is avoided, and the brightness uniformity of the first display area and the second display area is improved, and the service performance of OLED display products is improved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading the following detailed description of non-limiting embodiments, taken in conjunction with the accompanying drawings, in which like reference characters designate the same or similar features, and in which the figures are not to scale.

Fig. 1 is a schematic top view of a display panel according to an embodiment of the application;

fig. 2 is a partial cross-sectional view of a display panel according to an embodiment of the present application;

fig. 3 is a partial cross-sectional view of a first display area of a display panel according to an embodiment of the present application;

Fig. 4 is a partial cross-sectional view of a second display area of a display panel according to an embodiment of the present application;

FIG. 5 is a partial cross-sectional view of a first display area of a display panel in another embodiment;

FIG. 6 is a partial cross-sectional view of a second display area of a display panel in another embodiment;

FIG. 7 is a partial cross-sectional view of a first display area of a display panel in yet another embodiment;

FIG. 8 is a partial cross-sectional view of a first display area of a display panel in yet another embodiment;

FIG. 9 is a partial cross-sectional view of a display panel in another embodiment;

fig. 10 is a partial cross-sectional view of a second display area of a display panel in yet another embodiment;

Fig. 11 is a schematic flow chart of a method for manufacturing a display panel according to an embodiment of the application.

Reference numerals illustrate:

10. the display device comprises a display panel, an AA1, a first display area, an AA2, a second display area;

100. A substrate;

200. Isolation structure, 201, first isolation structure, 202, second isolation structure, 210, first layer, 220, second layer, 230, third layer, 240, isolation opening, 241, first isolation opening, 242, second isolation opening, 243, third isolation opening, 250, first light transmission opening, 260, second light transmission opening;

300. Light-emitting layer 310, light-emitting unit 311, first light-emitting unit 312, second light-emitting unit 313, third light-emitting unit 320, redundant unit;

400. First electrode layer 410, first electrode 420, redundant electrode;

500. First packaging layer, 510, packaging part, 520, packaging unit, 530, second packaging layer, 540, third packaging layer;

600. pixel definition layer 610, pixel definition part 620, pixel opening 630, second electrode;

D. The device comprises an extending distance D1, a first extending distance, a second extending distance D2, a third extending distance D3, a fourth extending distance D4, a fifth extending distance D5 and a sixth extending distance D6.

Detailed Description

Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are merely configured to illustrate the application and are not configured to limit the application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the application by showing examples of the application.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises the element.

It will be understood that when a layer, an area, or a structure is described as being "on" or "over" another layer, another area, it can be referred to as being directly on the other layer, another area, or another layer or area can be included between the layer and the other layer, another area. And if the component is turned over, that layer, one region, will be "under" or "beneath" the other layer, another region.

Embodiments of the present application provide a display panel, a display device, and a method for manufacturing the display panel, and embodiments of the display panel and the display device will be described below with reference to the accompanying drawings.

The embodiment of the application provides a display panel which can be an Organic LIGHT EMITTING Diode (OLED) display panel.

Referring to fig. 1 and 2, fig. 1 is a schematic top view of a display panel according to an embodiment of the application, and fig. 2 is a partial cross-sectional view of a display panel according to an embodiment of the application.

As shown in fig. 1 and 2, an embodiment of the present application provides a display panel 10, where the display panel 10 has a first display area AA1 and a second display area AA2, the first display area AA1 is disposed adjacent to the second display area AA2, the display panel 10 further includes a substrate 100, an isolation structure 200 disposed on one side of the substrate 100, the isolation structure 200 encloses an isolation opening 240, a light emitting layer 300 disposed on one side of the substrate 100, the light emitting layer 300 includes a light emitting unit 310 disposed on the isolation opening 240, the isolation structure 200 includes a first layer 210 and a second layer 220 disposed on one side of the first layer 210 facing away from the substrate 100, the front projection of the first layer 210 on the substrate 100 is disposed within the front projection of the second layer 220 on the substrate 100, wherein a distance between a front projection edge of the first layer 210 on the substrate 100 and a front projection edge of the second layer 220 on the substrate 100 is an extension distance D, and a ratio of an extension distance D of at least a portion of a peripheral side of the light emitting unit 310 in the first display area AA1 to an extension distance D of a peripheral side of the light emitting unit 310 in the second display area AA2 is 90% -110%.

According to the display panel 10 of the embodiment of the application, the display panel 10 has the first display area AA1 and the second display area AA2, the first display area AA1 is disposed adjacent to the second display area AA2, and light can reach the photosensitive assembly through the second display area AA2, so as to improve the photosensitive effect of the display panel 10. The display panel 10 further includes a substrate 100, an isolation structure 200, and a light emitting layer 300. The isolation structure 200 comprises a first layer 210 and a second layer 220 located on one side of the first layer 210 away from the substrate 100, the first layer 210 and the second layer 220 are stacked to form the isolation structure 200, the front projection of the first layer 210 close to the substrate 100 on the substrate 100 is located in the front projection of the second layer 220 on the substrate 100, the area of the second layer 220 is larger than that of the first layer 210, the second layer 220 covers the surface, close to the second layer 220, of the first layer 210, and at the moment, the first layer 210 is recessed towards a direction away from the isolation opening 240 relative to the second layer 220. When the light emitting layer 300 is prepared, the light emitting layer 300 generates a larger drop at the edge of the isolation structure 200, and the first layer 210 is concavely arranged relative to the second layer 220, so that the light emitting layer 300 is difficult to connect at the edge of the isolation structure 200, and is broken, and the light emitting layer 300 is broken to form the light emitting units 310 which are mutually disconnected, so that the crosstalk of carriers in the light emitting layer 300 is reduced, the display effect of the display panel 10 is improved, and the light emitting units 310 are prepared without adopting a precise mask plate, so that the development and the use of the precise mask plate can be reduced, and the preparation cost is reduced. The ratio of the extending distance D of the peripheral side of at least part of the light emitting units 310 in the first display area AA1 to the extending distance D of the peripheral side of the light emitting units 310 in the second display area AA2 is 90% -110%, so that the extending distance D of the peripheral side of at least part of the light emitting units 310 in the first display area AA1 is close to the extending distance D of the peripheral side of the light emitting units 310 in the second display area AA2, the overlapping area of the first electrode 410 at two positions with the similar extending distance D is similar to that of the isolation structure 200, the overlapping resistance of at least part of the first electrode 410 in the first display area AA1 and the second display area AA2 is similar to that of the isolation structure 200, the problem that the difference between the extending distance D of the peripheral side of at least part of the light emitting units 310 in the first display area AA1 and the extending distance D of the peripheral side of the light emitting units 310 in the second display area AA2 is large is caused, the overlapping resistance of at least part of the first electrode 410 in the first display area AA1 and the second display area AA2 and the isolation structure 200 is large, and accordingly the use performance of the OLED display product is improved.

The substrate 100 may be arranged in various ways, and the substrate 100 may include a substrate and an array substrate arranged on the substrate, for example. Or the base plate 100 is a substrate. Or the substrate 100 comprises a buffer layer and a support plate or the like on the side facing away from the substrate.

The related technical solutions of the isolation structure 200 are described in patent 202311317611.4, patent 202310855006.6, patent 202310854718.6 and patent 202311134638.X, which are incorporated herein by reference, and are not repeated in this embodiment.

In some alternative embodiments, the extending distance D of the peripheral side of at least part of the light emitting units 310 in the first display area AA1 is equal to the extending distance D of the peripheral side of the light emitting units 310 in the second display area AA2

In these alternative embodiments, the extending distance D of the peripheral side of at least part of the light emitting units 310 in the first display area AA1 is equal to the extending distance D of the peripheral side of the light emitting units 310 in the second display area AA2, so that the overlapping areas of the first electrodes 410 and the isolation structures 200 at two positions with the equal extending distance D are equal, and the overlapping resistances of at least part of the first electrodes 410 and the isolation structures 200 in the first display area AA1 and the second display area AA2 are equal, so as to improve the brightness uniformity of the first display area AA1 and the second display area AA2, thereby improving the usability of the OLED display product.

In some alternative embodiments, the extension distance D of the circumference sides of the light emitting units 310 having the same color is the same in the first display area AA1 and the second display area AA 2.

In these alternative embodiments, the isolation structures 200 on the peripheral sides of the light emitting units 310 of the first display area AA1 and the light emitting units 310 of the second display area AA2 with the same color have the same extension distance D, so that the overlap areas, that is, the overlap resistances, of the first electrodes 410 in the isolation openings 240 where the light emitting units 310 of the first display area AA1 and the second display area AA2 with the same color are located are equal to each other, so as to improve the brightness uniformity of the first display area AA1 and the second display area AA2, thereby improving the usability of the OLED display product.

Referring to fig. 3 and fig. 4 together, fig. 3 is a partial cross-sectional view of a first display area of a display panel according to an embodiment of the application, and fig. 4 is a partial cross-sectional view of a second display area of a display panel according to an embodiment of the application.

As shown in fig. 3 and 4, in some alternative embodiments, the light emitting unit 310 includes a first light emitting unit 311, and in the first display area AA1, an extension distance D of a peripheral side of the first light emitting unit 311 is a first extension distance D1, and in the second display area AA2, an extension distance D of a peripheral side of the first light emitting unit 311 is a second extension distance D2, and the first extension distance D1 is equal to the second extension distance D2.

In these alternative embodiments, the first extension distance D1 is equal to the second extension distance D2, that is, the isolation structures 200 on the peripheral sides of the first light emitting units 311 of the first display area AA1 and the second light emitting units 311 of the second display area AA2 have the same extension distance D, so that the overlap area, that is, the overlap resistance, of the first electrode 410 in the isolation opening 240 where the first light emitting units 311 of the first display area AA1 and the second display area AA2 are located is equal to the overlap area of the isolation structures 200, thereby improving the brightness uniformity of the first display area AA1 and the second display area AA2, and improving the usability of the OLED display product.

As shown in fig. 3 and 4, in some alternative embodiments, the light emitting unit 310 includes a second light emitting unit 312 having a color different from that of the first light emitting unit 311, and in the first display area AA1, an extension distance D of a peripheral side of the second light emitting unit 312 is a third extension distance D3, and in the second display area AA2, an extension distance D of a peripheral side of the second light emitting unit 312 is a fourth extension distance D4, and the third extension distance D3 is equal to the fourth extension distance D4.

In these alternative embodiments, the third extension distance D3 is equal to the fourth extension distance D4, that is, the isolation structures 200 on the peripheral sides of the second light emitting units 312 of the first display area AA1 and the second light emitting units 312 of the second display area AA2 have the same extension distance D, so that the overlap area, that is, the overlap resistance, of the first electrode 410 in the isolation opening 240 where the second light emitting units 312 of the first display area AA1 and the second display area AA2 are located is equal to the overlap area of the isolation structures 200, thereby improving the brightness uniformity of the first display area AA1 and the second display area AA2, and improving the usability of the OLED display product.

As shown in fig. 3 and 4, in some alternative embodiments, the light emitting unit 310 includes a third light emitting unit 313 having a color different from that of the first and second light emitting units 311 and 312, and in the first display area AA1, an extension distance D of a circumferential side of the third light emitting unit 313 is a fifth extension distance D5, and in the second display area AA2, an extension distance D of a circumferential side of the third light emitting unit 313 is a sixth extension distance D6, and the fifth extension distance D5 is equal to the sixth extension distance D6.

In these alternative embodiments, the fifth extension distance D5 is equal to the sixth extension distance D6, that is, the isolation structures 200 on the peripheral sides of the third light emitting units 313 of the first display area AA1 and the third light emitting units 313 of the second display area AA2 have the same extension distance D, so that the overlap area, that is, the overlap resistance, of the first electrode 410 in the isolation opening 240 where the third light emitting units 313 of the first display area AA1 and the second display area AA2 are located is equal to the overlap area of the isolation structures 200, thereby improving the brightness uniformity of the first display area AA1 and the second display area AA2, and improving the usability of the OLED display product.

Referring to fig. 5 and 6, fig. 5 is a partial cross-sectional view of a first display area of a display panel according to another embodiment, and fig. 6 is a partial cross-sectional view of a second display area of the display panel according to another embodiment.

As shown in fig. 5 and 6, in some alternative embodiments, the isolation structure 200 includes a first isolation structure 201 located in the first display area AA1 and a second isolation structure 202 located in the second display area AA2, the first isolation structure 201 encloses a portion of the isolation opening 240 and the first light-transmitting opening 250, and the second isolation structure 202 encloses a portion of the isolation opening 240 and the second light-transmitting opening 260.

In these alternative embodiments, the first light-transmitting opening 250 is formed on the first isolation structure 201 of the first display area AA1, and the second light-transmitting opening 260 is formed on the second isolation structure 202 of the second display area AA2, so as to reduce the difference between the density of the first isolation structure 201 in the first display area AA1 and the density of the second isolation structure 202 in the second display area AA2, and when the isolation openings 240, 250 and 260 are etched, the wet etching liquid medicine in the first display area AA1 enters both the first light-transmitting opening 250 and the isolation opening 240, so as to reduce the lateral etching amount of the wet etching liquid medicine on the first isolation structure 201, and the second light-transmitting opening 260 and the isolation opening 240 are simultaneously formed on the wet etching liquid medicine in the second display area AA2, so as to reduce the lateral etching amount of the first isolation structure 201 greater than the lateral etching amount of the second isolation structure 202 in the second display area AA2, i.e. the difference between the first isolation structure 202 and the second isolation structure 201 is reduced, and the difference between the second electrode area 410 and the second isolation structure 410 is reduced, and the difference between the two electrode structures of the two structures is reduced.

In some alternative embodiments, the front projection area of the first light-transmitting opening 250 on the substrate 100 is a first area, the front projection area of the second light-transmitting opening 260 on the substrate 100 is a fourth area, the ratio of the first area to the area of the first display area AA1 is a first ratio, the ratio of the fourth area to the area of the second display area AA2 is a second ratio, and the first ratio is equal to the second ratio. The front projection area of the first isolation opening 241 on the substrate 100 is a second area, the front projection of the first isolation structure 201 on the substrate 100 is a third area, the front projection area of the second isolation opening 242 on the substrate 100 is a fifth area, the front projection of the second isolation structure 202 on the substrate 100 is a sixth area, the area of the first display area AA1 is the sum of the first area, the second area and the third area, and the area of the second display area AA2 is the sum of the fourth area, the fifth area and the sixth area.

In these alternative embodiments, the first ratio is equal to the second ratio, that is, the distribution density of the first light-transmitting openings 250 in the first display area AA1 is equal to the distribution density of the second light-transmitting openings 260 in the second display area AA2, the distribution density of the first isolation structures 201 in the first display area AA1 is similar to or equal to the distribution density of the second isolation structures 202 in the second display area AA2, the influence of the first light-transmitting openings 250 and the second light-transmitting openings 260 on the extension distances D of the first isolation structures 201 and the second isolation structures 202 is reduced, so that at least part of the extension distances D of the first isolation structures 201 are equal to the extension distances D of the second isolation structures 202, the difference between the overlap resistance of the first electrodes 410 and the first isolation structures 201 and the overlap resistance of the first electrodes 410 and the second isolation structures 202 is reduced, and the brightness uniformity of the first display area AA1 and the second display area AA2 is improved.

In these alternative embodiments, the first ratio is close to the second ratio, for example, the first ratio is 90% -110% of the second ratio, so as to improve the brightness uniformity of the first display area AA1 and the second display area AA 2.

Optionally, the orthographic projection area of at least one of the plurality of first light-transmitting openings 250 on the substrate 100 is equal to the orthographic projection area of at least one of the plurality of second light-transmitting openings 260 on the substrate 100, so as to reduce the difference between the distribution density of the first light-transmitting openings 250 on the first display area AA1 and the distribution density of the second light-transmitting openings 260 on the second display area AA2, reduce the influence of the first light-transmitting openings 250 and the second light-transmitting openings 260 on the extension distance D of the first isolation structure 201 and the second isolation structure 202, reduce the difference between the overlap resistance of the first electrode 410 and the first isolation structure 201 and the overlap resistance of the first electrode 410 and the second isolation structure 202, and improve the brightness uniformity of the first display area AA1 and the second display area AA 2.

Optionally, the number of the first light-transmitting openings 250 in the unit area of the first display area AA1 is equal to the number of the second light-transmitting openings 260 in the unit area of the second display area AA2, so as to reduce the difference between the distribution density of the first light-transmitting openings 250 in the first display area AA1 and the distribution density of the second light-transmitting openings 260 in the second display area AA2, reduce the influence of the first light-transmitting openings 250 and the second light-transmitting openings 260 on the extension distance D of the first isolation structure 201 and the second isolation structure 202, reduce the difference between the overlap resistance of the first electrode 410 and the first isolation structure 201 and the overlap resistance of the first electrode 410 and the second isolation structure 202, and improve the brightness uniformity of the first display area AA1 and the second display area AA 2.

Optionally, the front projection area of the first light-transmitting openings 250 on the substrate 100 is equal to the front projection area of the second light-transmitting openings 260 on the substrate 100, and the number of the first light-transmitting openings 250 in the unit area of the first display area AA1 is equal to the number of the second light-transmitting openings 260 in the unit area of the second display area AA2, so that the distribution density of the first light-transmitting openings 250 in the first display area AA1 is equal to the distribution density of the second light-transmitting openings 260 in the second display area AA2, the extension distance D of at least part of the first isolation structures 201 is equal to the extension distance D of the second isolation structures 202, so that the overlap area, i.e. the overlap resistance, of the first electrodes 410 in the isolation openings 240 in which at least part of the light-emitting units 310 of the first display area AA1 and the second display area AA2 are located is equal to the overlap area of the isolation structures 200, and the brightness uniformity of the first display area AA1 and the second display area AA2 is improved, thereby improving the usability of the OLED display product.

In some alternative embodiments, the display panel 10 further includes a first electrode layer 400 disposed on a side of the light emitting layer 300 facing away from the substrate 100, the first electrode layer 400 including a first electrode 410 disposed on the isolation opening 240, the first electrode 410 being electrically connected to the isolation structure 200.

In these alternative embodiments, the isolation structure 200 partitions the first electrode layer 400 to form first electrodes 410 spaced apart from each other, and the first electrodes 410 spaced apart from each other are electrically connected to form a whole electrode through the isolation structure 200, so as to ensure normal light emission of the light emitting unit 310.

In some alternative embodiments, the front projection of the light emitting unit 310 on the substrate 100 is located within the front projection of the first electrode 410 on the substrate 100.

In these alternative embodiments, the front projection of the light emitting unit 310 on the substrate 100 is located within the front projection of the first electrode 410 on the substrate 100, that is, the first electrode 410 is disposed to cover the light emitting unit 310, so as to serve as an electrode of the light emitting unit 310, ensure the normal light emission of the light emitting unit 310, and improve the display effect of the display panel 10.

Optionally, the light emitting units 310 are spaced from the isolation structure 200, and the light emitting units 310 are spaced from the isolation structure 200, that is, the light emitting units 310 are spaced from each other, so that crosstalk of carriers between the light emitting units 310 is reduced, and the cross-color problem of the light emitting units 310 is improved.

Referring to fig. 7, fig. 7 is a partial cross-sectional view of a first display area of a display panel according to another embodiment.

In some alternative embodiments, as shown in fig. 7, the first electrode layer 400 further includes a redundant electrode 420 positioned within the first light-transmissive opening 250.

In these alternative embodiments, the redundant electrode 420 is disposed in the first light-transmitting opening 250, so that mutual interference between the signal on the side of the redundant electrode 420 close to the substrate 100 and the signal on the side far from the substrate 100 can be reduced, and the signal shielding effect of the redundant electrode 420 can be achieved.

In some alternative embodiments, the redundant electrode 420 is electrically connected to the isolation structure 200.

In these alternative embodiments, after the isolation structure 200 is electrically connected to the redundant electrode 420, the redundant electrode 420 and the isolation structure 200 have the same potential, and the isolation structure 200 provides a fixed potential to the redundant electrode 420, so that the potential of the redundant electrode 420 is stable and is difficult to be interfered by signals on the substrate 100 side and the side away from the substrate 100 side, thereby improving the signal shielding effect of the redundant electrode 420.

Optionally, the light emitting layer 300 further includes a redundancy unit 320 located in the first light-transmitting opening 250, and the redundancy electrode 420 is disposed to cover the redundancy unit 320, when the light emitting layer 300 is prepared, the light emitting layer 300 is broken at the edge of the isolation structure 200 to form the light emitting unit 310 located in the isolation opening 240 and the redundancy unit 320 located in the first light-transmitting opening 250, the redundancy unit 320 located in the first light-transmitting opening 250 is reserved, the etching step in the first light-transmitting opening 250 is reduced, and the preparation process is simplified.

Optionally, a packaging unit 520 is disposed in the first light-transmitting opening 250, the packaging unit 520 is located at a side of the redundant electrode 420 away from the substrate 100, when the first packaging layer 500 is prepared, the first packaging layer 500 is broken at the edge of the isolation structure 200, so that a packaging part 510 located in the isolation opening 240 and the packaging unit 520 located in the first light-transmitting opening 250 are formed, the packaging unit 520 located in the first light-transmitting opening 250 is reserved, etching steps in the first light-transmitting opening 250 are reduced, and the preparation process is simplified.

In some alternative embodiments, the light emitting device further comprises a first encapsulation layer 500 located on a side of the light emitting layer 300 facing away from the substrate 100, wherein the first encapsulation layer 500 comprises an encapsulation portion 510 located at the isolation opening 240.

In these alternative embodiments, the encapsulation portion 510 of the first encapsulation layer 500 is disposed in the isolation opening 240 to encapsulate the light emitting unit 310 and the first electrode 410 in the isolation opening 240, so as to reduce intrusion of water oxygen into the light emitting unit 310 and the first electrode 410, and improve service lives of the light emitting unit 310 and the first electrode 410.

In some alternative embodiments, the material of the first encapsulation layer 500 includes an inorganic material.

In these alternative embodiments, the first encapsulation layer 500 comprises an inorganic material that is more dense and more resistant to moisture and oxygen.

Referring to fig. 8, fig. 8 is a partial cross-sectional view of a first display area of a display panel according to another embodiment.

As shown in fig. 8, the display panel 10 further includes a second encapsulation layer 530 disposed on a side of the first encapsulation layer 500 facing away from the substrate 100, the second encapsulation layer 530 contacting the isolation structure 200, and a third encapsulation layer 540 disposed on a side of the second encapsulation layer 530 facing away from the substrate 100. The display panel 10 adopts three layers of packaging, has better packaging performance and reduces the possibility of water and oxygen invasion.

Optionally, a portion of the second encapsulation layer 530 fills the second light-transmitting opening 260, so as to encapsulate the second light-transmitting opening 260.

Optionally, the material of the second encapsulation layer 530 includes an organic material.

Optionally, the material of the third encapsulation layer 540 includes an inorganic material. The first encapsulation layer 500, the second encapsulation layer 530, and the third encapsulation layer 540 are encapsulated by an inorganic material, an organic material, and an inorganic material, respectively, to form a TFE (Thin Film Encapsulation, TFE) thin film encapsulation structure, thereby further improving encapsulation performance.

Alternatively, the first layer 210 comprises a conductive material, for example, the first layer 210 comprises a non-metallic conductive material or a metallic conductive material.

In some alternative embodiments, the second layer 220 includes a conductive material or an insulating material.

In these alternative embodiments, the second layer 220 comprises a conductive material, for example, the second layer 220 comprises a non-metallic conductive material or a metallic conductive material. When the second layer 220 is made of a non-metal conductive material or an insulating material, the second layer 220 is difficult to be etched in the process of wet etching the first layer 210 by using the etching solution, so that the first layer 210 is more easily arranged concavely relative to the second layer 220.

In some alternative embodiments, first layer 210 and second layer 220 each comprise a metallic material, and the materials of first layer 210 and second layer 220 are different.

In these alternative embodiments, when the first layer 210 and the second layer 220 are both made of metal materials, the first layer 210 may be wet etched using an etching solution, and the etching rate of the second layer 220 may be made smaller than that of the first layer 210 by setting the etching solution. Because the etching rate of the first layer 210 is relatively high, when the etching solution is used for wet etching, the first layer 210 etches relatively fast even though the second layer 220 is subjected to certain etching, so that the first layer 210 is concavely arranged relative to the second layer 220.

Referring to fig. 9, fig. 9 is a partial cross-sectional view of a display panel according to another embodiment.

In some alternative embodiments, as shown in fig. 9, the isolation structure 200 further includes a third layer 230 on a side of the first layer 210 facing the substrate 100, where the orthographic projection of the first layer 210 on the substrate 100 is located within the orthographic projection of the third layer 230 on the substrate 100.

In these alternative embodiments, the first layer 210 is recessed because the first layer 210 has a faster etch rate relative to the second and third layers 220, 230 during etching in order to obtain the recessed first layer 210. Since the etching rate of the first layer 210 is faster, waste generated by etching is more likely to enter other positions of the display panel 10, thereby causing adverse effects. After the third layer 230 is disposed, the first layer 210 can be better attached to the third layer 230, and the generated etching waste falls on the third layer 230, so that cleaning is facilitated.

In some alternative embodiments, the display panel 10 further includes a pixel defining layer 600 on the substrate 100, the pixel defining layer 600 including a pixel defining portion 610 and a pixel opening 620 surrounded by the pixel defining portion 610, the pixel opening 620 communicating with the isolation opening 240.

In these alternative embodiments, the pixel defining part 610 of the pixel defining layer 600 encloses the pixel opening 620 to provide the light emitting unit 310, and to achieve normal light emission of the light emitting unit 310. The pixel defining unit 610 defines the installation area of each light emitting unit 310, and reduces crosstalk between the light emitting units 310.

Optionally, the display panel 10 further includes a second electrode 630, and the second electrode 630 is exposed by the pixel opening 620. One of the second electrode 630 and the first electrode 410 serves as an anode of the light emitting unit 310, and the other serves as a cathode of the light emitting unit 310. The embodiment of the present application uses the second electrode 630 as the anode of the light emitting unit 310, and the first electrode 410 as the cathode of the light emitting unit 310. The relevant content of the cathode is described in the patent application 202310707209.0, 202311346196.5, which is incorporated by reference.

As shown in fig. 5 and 6, the pixel defining layer 600 is optionally exposed by the first light-transmitting opening 250 and the second light-transmitting opening 260, and the first light-transmitting opening 250 and the second light-transmitting opening 260 are through openings, so as to improve the light transmittance of the first light-transmitting opening 250 and the second light-transmitting opening 260.

Referring to fig. 8 and fig. 10 together, fig. 10 is a partial cross-sectional view of a second display area of a display panel according to another embodiment.

As shown in fig. 8 and 10, optionally, in the first light-transmitting opening 250, the pixel defining layer 600 is in contact with the redundant electrode 420, in the second light-transmitting opening 260, the pixel defining layer 600 is in contact with the second encapsulation layer 530, and the redundant electrode 420 is disposed in the first light-transmitting opening 250, so that mutual interference between a signal on the side of the redundant electrode 420 close to the substrate 100 and a signal on the side far from the substrate 100 can be reduced, and a signal shielding effect of the redundant electrode 420 is achieved. The second encapsulation layer 530 encapsulates the second light-transmitting opening 260.

Optionally, the redundant electrode 420 and the redundant unit 320 are not disposed in the second light-transmitting opening 260, so that the second light-transmitting opening 260 has a higher transmittance.

Alternatively, the light emitting layer 300 includes an Electron Injection Layer (EIL), an Electron Transport Layer (ETL), a light emitting material layer, a Hole Injection Layer (HIL), and a Hole Transport Layer (HTL).

In a second aspect of the present application, a display panel 10 is provided, wherein the display panel 10 has a first display area AA1 and a second display area AA2, the first display area AA1 is disposed adjacent to the second display area AA2, the display panel 10 further includes a substrate 100, an isolation structure 200 disposed on one side of the substrate 100, the isolation structure 200 encloses to form an isolation opening 240, a light emitting layer 300 disposed on one side of the substrate 100, the light emitting layer 300 includes a light emitting unit 310 disposed on the isolation opening 240, the isolation structure 200 includes a first isolation structure 201 disposed on the first display area AA1 and a second isolation structure 202 disposed on the second display area AA2, the first isolation structure 201 encloses to form a portion of the isolation opening 240 and a first light transmitting opening 250, the second isolation structure 202 encloses to form a portion of the isolation opening 240 and a second light transmitting opening 260, wherein a forward projection area of the first light transmitting opening 250 on the substrate 100 is a first area, a forward projection area of the second light transmitting opening 260 on the substrate 100 is a fourth area, a ratio of the first area to the first display area AA1 is a first ratio, and a ratio of the second ratio of the fourth area to the second area AA2 is equal to a second ratio.

According to the display panel 10 of the embodiment of the application, the display panel 10 has the first display area AA1 and the second display area AA2, the first display area AA1 is disposed adjacent to the second display area AA2, and light can reach the photosensitive assembly through the second display area AA2, so as to improve the photosensitive effect of the display panel 10. The display panel 10 further includes a substrate 100, an isolation structure 200, and a light emitting layer 300. When the light-emitting layer 300 is prepared, the light-emitting layer 300 generates a larger drop at the edge of the isolation structure 200, the isolation structure 200 comprises a first layer 210 and a second layer 220 positioned at one side, away from the substrate 100, of the first layer 210, the first layer 210 is concavely arranged relative to the second layer 220, the light-emitting layer 300 is difficult to connect at the edge of the isolation structure 200, so that the light-emitting layer 300 is broken, the light-emitting units 310 which are mutually disconnected are formed by breaking, the crosstalk of carriers in the light-emitting layer 300 is reduced, the display effect of the display panel 10 is improved, the light-emitting units 310 are prepared without adopting a precise mask, the development and the use of the precise mask can be reduced, and the preparation cost is reduced. The first ratio is equal to the second ratio, that is, the distribution density of the first light-transmitting openings 250 in the first display area AA1 is equal to the distribution density of the second light-transmitting openings 260 in the second display area AA2, the distribution density of the first isolation structures 201 in the first display area AA1 is similar to or equal to the distribution density of the second isolation structures 202 in the second display area AA2, the influence of the first light-transmitting openings 250 and the second light-transmitting openings 260 on the extension distances D of the first isolation structures 201 and the second isolation structures 202 is reduced, so that the extension distance D of at least part of the first isolation structures 201 is equal to the extension distance D of the second isolation structures 202, the difference between the overlap resistance of the first electrodes 410 and the first isolation structures 201 and the overlap resistance of the first electrodes 410 and the second isolation structures 202 is reduced, and the brightness uniformity of the first display area AA1 and the second display area AA2 is improved.

The structural design in the present embodiment can be applied to other display panels 10, and specifically can be selected according to practical situations, which is not limited in the present application.

Embodiments of the third aspect of the present application also provide a display device comprising the display panel 10 of any of the embodiments of the first and second aspects described above. Since the display device provided by the embodiment of the third aspect of the present application includes the display panel 10 according to any one of the first aspect and the second aspect, the display device provided by the embodiment of the third aspect of the present application has the advantages of the display panel 10 according to any one of the first aspect and the second aspect, and is not described herein.

The display device in the embodiment of the application includes, but is not limited to, a mobile phone, a Personal Digital Assistant (PDA), a tablet computer, an electronic book, a television, an access control, a smart phone, a console, and other devices with display functions.

An embodiment of the fourth aspect of the present application further provides a method for manufacturing a display panel 10, where the display panel 10 may be the display panel 10 provided in any of the embodiments of the first aspect and the second aspect, please refer to the display panel 10 of fig. 1 to 10 together, and refer to fig. 11, and fig. 11 is a flow chart of a method for manufacturing a display panel provided in the embodiment of the present application. The display panel 10 has a first display area AA1 and a second display area AA2, where the first display area AA1 is disposed adjacent to the second display area AA2, and the method includes:

And S01, preparing an isolation structure on the substrate, enclosing the isolation structure to form an isolation opening, and positioning a first layer and a second layer positioned on one side of the first layer away from the substrate, wherein the orthographic projection of the first layer on the substrate is positioned in the orthographic projection of the second layer on the substrate.

And S02, preparing a light-emitting layer on the substrate, wherein the light-emitting layer comprises light-emitting units positioned at the isolated openings, the distance between the orthographic projection edge of the substrate and the orthographic projection edge of the substrate of the first layer and the orthographic projection edge of the substrate of the second layer is an extension distance, and the ratio of the extension distance of at least part of the light-emitting units in the first display area to the extension distance of the light-emitting units in the second display area is 90% -110%.

According to the preparation method of the embodiment of the application, the isolation structure 200 is prepared in step S01, the display panel 10 has the first display area AA1 and the second display area AA2, and the light can reach the photosensitive assembly through the second display area AA2, so as to improve the photosensitive effect of the display panel 10. The display panel 10 further includes a substrate 100, an isolation structure 200, and a light emitting layer 300. The isolation structure 200 comprises a first layer 210 and a second layer 220 located on one side of the first layer 210 away from the substrate 100, the first layer 210 and the second layer 220 are stacked to form the isolation structure 200, the front projection of the first layer 210 close to the substrate 100 on the substrate 100 is located in the front projection of the second layer 220 on the substrate 100, the area of the second layer 220 is larger than that of the first layer 210, the second layer 220 covers the surface, close to the second layer 220, of the first layer 210, and at the moment, the first layer 210 is recessed towards a direction away from the isolation opening 240 relative to the second layer 220. When the light emitting layer 300 is prepared, the light emitting layer 300 generates a larger drop at the edge of the isolation structure 200, and the first layer 210 is concavely arranged relative to the second layer 220, so that the light emitting layer 300 is difficult to connect at the edge of the isolation structure 200, and is broken, and the light emitting layer 300 is broken to form the light emitting units 310 which are mutually disconnected, so that the crosstalk of carriers in the light emitting layer 300 is reduced, the display effect of the display panel 10 is improved, and the light emitting units 310 are prepared without adopting a precise mask plate, so that the development and the use of the precise mask plate can be reduced, and the preparation cost is reduced. The light emitting layer 300 is prepared through step S02. The extending distance D of the peripheral side of at least part of the light emitting units 310 in the first display area AA1 is 90% -110% to the extending distance D of the peripheral side of the light emitting units 310 in the second display area AA2, so that the extending distance D of the peripheral side of at least part of the light emitting units 310 in the first display area AA1 is close to or equal to the extending distance D of the peripheral side of the light emitting units 310 in the second display area AA2, the overlapping area of the first electrodes 410 at two positions with the similar extending distance D is similar to that of the isolation structure 200, the overlapping resistance of at least part of the first electrodes 410 in the first display area AA1 and the second display area AA2 is similar to that of the isolation structure 200, the problem that the extending distance D of the peripheral side of at least part of the light emitting units 310 in the first display area AA1 is greatly different from the extending distance D of the peripheral side of the light emitting units 310 in the second display area AA2 is solved, the overlapping resistance of at least part of the first electrodes 410 in the first display area AA1 and the second display area AA2 is greatly different from that of the isolation structure 200, and the uniformity of the brightness of the first display area AA2 is improved, and thus the performance of the OLED display is improved.

In some alternative embodiments, the isolation opening 240 includes a first isolation opening 241, a second isolation opening 242, and a third isolation opening 243, and the isolation structure 200 further encloses a first light-transmitting opening 250 located in the first display area AA1 and a second light-transmitting opening 260 located in the second display area AA2, and after step S01, the method further includes:

preparing a first electrode 410 material layer and a first encapsulation material layer on the substrate 100, and performing patterning treatment on the first electrode 410 material layer and the first encapsulation material layer to form a first electrode 410 unit and a first encapsulation 510 located in the first isolation opening 241;

Preparing a second electrode 630 material layer and a second packaging material layer on one side of the first packaging part 510 away from the substrate 100, and performing patterning treatment on the second electrode 630 material layer and the second packaging material layer to form a second electrode 630 unit and a second packaging part 510 which are positioned at the second isolation opening 242;

A third electrode material layer and a third encapsulation material layer are prepared on a side of the second encapsulation portion 510 facing away from the substrate 100, and patterned to form a third electrode unit and a third encapsulation portion 510 located at the third isolation opening 243, and a redundant electrode 420 and an encapsulation unit 520 located at the first light-transmitting opening 250.

In these alternative embodiments, the third electrode unit and the third encapsulation portion 510 located in the third isolation opening 243 are formed at the same time as the redundant electrode 420 and the encapsulation unit 520 located in the first light-transmitting opening 250 are formed, that is, the redundant electrode 420 and the encapsulation unit 520 located in the first light-transmitting opening 250 are simultaneously formed in the preparation of the last first electrode 410 and the encapsulation portion 510, so that damage to the redundant electrode 420 located in the first light-transmitting opening 250 by the patterning process in the foregoing process can be avoided, and the shielding effect of the redundant electrode 420 is ensured.

These embodiments are not exhaustive or to limit the application to the precise embodiments disclosed, and according to the application described above. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the application and the practical application, to thereby enable others skilled in the art to best utilize the application and various modifications as are suited to the particular use contemplated. The application is limited only by the claims and the full scope and equivalents thereof.

Claims

1. A display panel having a first display area and a second display area, the first display area disposed adjacent to the second display area, the display panel further comprising:

a substrate;

the isolation structure is positioned on one side of the substrate and is enclosed to form an isolation opening;

a light emitting layer located at one side of the substrate, the light emitting layer including a light emitting unit located at the isolation opening;

the isolation structure comprises a first layer and a second layer which is positioned on one side of the first layer away from the substrate, wherein the orthographic projection of the first layer on the substrate is positioned in the orthographic projection of the second layer on the substrate;

The distance between the orthographic projection edge of the substrate and the orthographic projection edge of the substrate of the first layer is an extension distance, and the ratio of the extension distance of at least part of the peripheral sides of the light emitting units in the first display area to the extension distance of the peripheral sides of the light emitting units in the second display area is 90% -110%.

2. The display panel according to claim 1, wherein the extending distance of at least part of the light emitting unit peripheral side in the first display area is equal to the extending distance of the light emitting unit peripheral side in the second display area.

3. The display panel according to claim 2, wherein the extending distances of the light emitting unit peripheral sides having the same color are the same in the first display region and the second display region;

The light emitting unit comprises a first light emitting unit, the extending distance of the periphery side of the first light emitting unit is a first extending distance in the first display area, the extending distance of the periphery side of the first light emitting unit is a second extending distance in the second display area, and the first extending distance is equal to the second extending distance;

preferably, the light emitting unit includes a second light emitting unit having a color different from that of the first light emitting unit, the extended distance of the second light emitting unit peripheral side is a third extended distance in the first display area, and the extended distance of the second light emitting unit peripheral side is a fourth extended distance in the second display area, the third extended distance being equal to the fourth extended distance;

Preferably, the light emitting unit includes a third light emitting unit having a color different from that of the first light emitting unit and the second light emitting unit, the extending distance of the third light emitting unit on the peripheral side is a fifth extending distance in the first display area, and the extending distance of the third light emitting unit on the peripheral side is a sixth extending distance in the second display area, and the fifth extending distance is equal to the sixth extending distance.

4. The display panel of claim 1, wherein the isolation structure comprises a first isolation structure located in the first display region and a second isolation structure located in the second display region, the first isolation structure enclosing a portion of the isolation opening and the first light-transmissive opening, the second isolation structure enclosing a portion of the isolation opening and the second light-transmissive opening.

5. The display panel of claim 4, wherein the orthographic projection area of the first light-transmitting opening on the substrate is a first area, the orthographic projection area of the second light-transmitting opening on the substrate is a fourth area, the ratio of the first area to the first display area is a first ratio, the ratio of the fourth area to the second display area is a second ratio, and the first ratio is equal to the second ratio.

6. The display panel of claim 4, wherein an orthographic projection area of at least one of the plurality of first light-transmitting openings on the substrate is equal to an orthographic projection area of at least one of the plurality of second light-transmitting openings on the substrate.

7. The display panel of claim 4, wherein the number of the first light-transmitting openings per unit area of the first display area is equal to the number of the second light-transmitting openings per unit area of the second display area.

8. The display panel according to claim 4, the display panel is characterized in that the display panel further comprises:

The first electrode layer is positioned on one side of the light-emitting layer, which is away from the substrate, and comprises a first electrode positioned at the isolation opening, and the first electrode is electrically connected with the isolation structure;

Preferably, the orthographic projection of the light emitting unit on the substrate is located within the orthographic projection of the first electrode on the substrate;

preferably, the light emitting unit is spaced apart from the isolation structure.

9. The display panel of claim 8, wherein the first electrode layer further comprises a redundant electrode within the first light transmissive opening;

preferably, the redundant electrode is electrically connected with the isolation structure;

preferably, the light emitting layer further includes a redundancy unit located in the first light transmitting opening, and the redundancy electrode is disposed to cover the redundancy unit.

10. The display panel of claim 9, further comprising:

the first packaging layer is positioned on one side of the light-emitting layer, which is away from the substrate, and comprises a packaging part positioned at the isolation opening;

Preferably, the first packaging layer further includes a packaging unit located in the first light-transmitting opening, the packaging unit is located at a side of the redundant electrode, which is away from the substrate, and the packaging unit and the packaging part are arranged at intervals;

Preferably, the material of the first encapsulation layer includes an inorganic material;

Preferably, the display panel further includes:

The second packaging layer is positioned on one side of the first packaging layer, which is away from the substrate;

The third packaging layer is positioned on one side of the second packaging layer away from the substrate;

Preferably, part of the second packaging layer is filled in the second light-transmitting opening;

Preferably, the material of the second encapsulation layer includes an organic material;

preferably, the material of the third encapsulation layer includes an inorganic material.

11. The display panel of claim 10, wherein the first layer comprises a conductive material;

Preferably, the second layer comprises a conductive material or an insulating material;

Preferably, the first layer and the second layer each comprise a metallic material, and the materials of the first layer and the second layer are different;

preferably, the isolation structure further comprises a third layer located on one side of the first layer facing the substrate, and the orthographic projection of the first layer on the substrate is located within the orthographic projection of the third layer on the substrate;

Preferably, the display panel further includes:

a pixel defining layer on the substrate, wherein the pixel defining layer comprises a pixel defining part and a pixel opening formed by the surrounding of the pixel defining part, and the pixel opening is communicated with the isolation opening;

preferably, the display panel further includes a second electrode between the substrate and the pixel defining layer, the second electrode being exposed from the pixel opening;

Preferably, the pixel defining layer is exposed from the first light transmitting opening and the second light transmitting opening;

preferably, the pixel defining layer is in contact with the redundant electrode in the first light-transmitting opening, and the pixel defining layer is in contact with the second encapsulation layer in the second light-transmitting opening.

12. A display panel having a first display area and a second display area, the first display area disposed adjacent to the second display area, the display panel further comprising:

a substrate;

The isolation structure comprises a first isolation structure positioned in the first display area and a second isolation structure positioned in the second display area, the first isolation structure encloses to form part of the isolation opening and the first light transmission opening, and the second isolation structure encloses to form part of the isolation opening and the second light transmission opening;

The front projection area of the first light-transmitting opening on the substrate is a first area, the front projection area of the second light-transmitting opening on the substrate is a fourth area, the ratio of the first area to the area of the first display area is a first ratio, the ratio of the fourth area to the area of the second display area is a second ratio, and the first ratio is equal to the second ratio.

13. The display panel of claim 12, wherein the isolation structure comprises a first layer and a second layer on a side of the first layer facing away from the substrate, the front projection of the first layer on the substrate is located within the front projection of the second layer on the substrate, the distance between the front projection edge of the substrate and the front projection edge of the second layer on the substrate is an extension distance, and the extension distances on the periphery of the light emitting units having the same color are the same in the first display region and the second display region.

14. The display panel according to claim 12, the display panel is characterized in that the display panel further comprises:

15. The display panel of claim 14, wherein the first electrode layer further comprises a redundant electrode within the first light transmissive opening;

preferably, the light emitting layer further includes a redundancy unit located in the first light transmitting opening;

preferably, a packaging unit is arranged in the first light-transmitting opening, and the packaging unit is positioned at one side of the redundant electrode, which is away from the substrate;

Preferably, the redundant electrode and the redundant unit are not disposed in the second light-transmitting opening.

16. A display device comprising the display panel of any one of claims 1-15.

17. A method of manufacturing a display panel, the display panel having a first display region and a second display region, the first display region disposed adjacent to the second display region, the method comprising:

preparing an isolation structure on a substrate, wherein the isolation structure is surrounded to form an isolation opening, a first layer and a second layer are arranged on one side of the first layer, which is away from the substrate, and the orthographic projection of the first layer on the substrate is positioned in the orthographic projection of the second layer on the substrate;

And preparing a light-emitting layer on the substrate, wherein the light-emitting layer comprises light-emitting units positioned in the isolation openings, the distance between the orthographic projection edge of the substrate and the orthographic projection edge of the substrate of the first layer and the orthographic projection edge of the substrate of the second layer is an extension distance, and the ratio of the extension distance of at least part of the periphery sides of the light-emitting units in the first display area to the extension distance of the periphery sides of the light-emitting units in the second display area is 90% -110%.

18. The method of manufacturing of claim 17, wherein the isolation openings comprise a first isolation opening, a second isolation opening, and a third isolation opening, the isolation structure further encloses a first light transmissive opening in the first display region and a second light transmissive opening in the second display region, and after the step of manufacturing the isolation structure on the substrate, the method further comprises:

Preparing a first electrode material layer and a first packaging material layer on the substrate, and performing patterning treatment on the first electrode material layer and the first packaging material layer to form a first electrode unit and a first packaging part which are positioned in the first isolation opening;

Preparing a second electrode material layer and a second packaging material layer on one side of the first packaging part, which is away from the substrate, and performing patterning treatment on the second electrode material layer and the second packaging material layer to form a second electrode unit and a second packaging part which are positioned at the second isolation opening;

Preparing a third electrode material layer and a third packaging material layer on one side of the second packaging part, which is far away from the substrate, and performing patterning treatment on the third electrode material layer and the third packaging material layer to form a third electrode unit and a third packaging part which are positioned at the third isolation opening, and a redundant electrode and a packaging unit which are positioned at the first light transmission opening.