CN107682002A - Touch display unit and household electrical appliance - Google Patents

Abstract

Embodiments of the present invention provide a touch display device and a household appliance, which belong to the field of household appliances. The device includes: a display module including a display panel configured to display; and an induction spring configured to wrap the display module with an axis perpendicular to the display panel so that when the touch The capacitance on the sensing spring is changed when the display device is touched. Through the induction spring whose capacitance can be changed when the display module is touched, the touch detection of the display module is realized. This technical solution is suitable for implementation on various display modules. Compared with the ITO film, the induction spring has a larger physical size And the good mechanical properties unique to metal materials, easy to assemble and low cost.

Description

Touch display device and home appliance

technical field

The invention relates to the field of household appliances, in particular to a touch display device and a household appliance.

Background technique

Existing application interfaces of home appliances include buttons, icon displays, knobs, gestures, etc. to realize user operation functions, among which touch and icon display methods are currently more popular and have better user experience effects. In home appliances, LCD or LED are often used for display, and then a layer of ITO film is pasted on the display interface. When the icon on the display interface is touched by the human hand, the capacitance value of the corresponding transparent button on the ITO film changes. After the chip receives the change of the ITO film button, it makes corresponding processing.

In the application interface composed of transparent ITO film and display icons, since the ITO film is transparent, the user cannot see the ITO film, so when the user's finger touches the lighted icon, the corresponding function can be triggered. The structure of the ITO display device provided in the prior art is shown in FIG. 1 , which may include a window plate 11 , an ITO film 12 , a display screen 13 and a control board 14 . The ITO film 12 is pasted on the window plate 11, and the ITO film 12, the display screen 13 and the control board 14 are connected through connecting wires.

In the process of realizing the present invention, the inventors found that the above solutions in the prior art have the following defects. The cost of the application interface using the above-mentioned ITO film is relatively high, and the sticking of the ITO film is difficult. Therefore, it is often used in high-end products in home appliances. Limited by cost and process difficulty, the application is not widespread.

Contents of the invention

The object of the present invention is to provide a device and a method, which can provide a touch key with good user experience, and the assembly is simple and cost-effective.

In order to achieve the above object, the present invention provides a touch display device, which comprises:

a display module comprising a display panel configured to display; and

The induction spring is configured to wind the display module with an axis perpendicular to the display panel, so that the capacitance on the induction spring is changed when the touch display device is touched.

Optionally, the induction spring includes an induction line configured to be at least partially located on a plane where the display panel is located.

Optionally, the display panel includes a display area and a non-display area, and the sensing lines are configured to be at least partially located in the non-display area.

Optionally, the device includes a housing configured to encapsulate the display module and the induction spring.

Optionally, the casing is a plastic casing.

Optionally, the display panel includes one of the following: a liquid crystal display LCD, a light emitting diode LED, and an organic light emitting diode OLED.

Optionally, the induction spring includes a spring pin configured to transmit a signal to the touch chip.

Optionally, the device further includes a window panel overlaid on the display panel, the window panel configured to provide a touch interface.

In another aspect, the present invention provides a household appliance, which includes the above touch display device.

Optionally, the household appliances include one of the following: a stove, a range hood, a dishwasher, an oven, a kitchen machine, an electric rice cooker, a refrigerator, and a microwave oven.

Through the above technical solution, through the induction spring whose capacitance can be changed when the display module is touched, the touch detection of the display module is realized. This technical solution is suitable for implementation on various display modules, and the touch detection sensitivity is high. The induction spring Compared with the ITO film, it has a larger physical size and good mechanical properties unique to metal materials, and is easy to assemble and low in cost.

Other features and advantages of the present invention will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention. In the attached picture:

FIG. 1 is a schematic diagram of the composition of an ITO display device provided in the prior art;

Fig. 2 is a schematic composition diagram of a touch display device provided by an embodiment of the present invention;

Fig. 3 is a schematic side view of a touch display device provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of the display panel side of the touch display device shown in Fig. 3;

Fig. 5 is a schematic diagram of the pin side of the touch display device shown in Fig. 3;

Fig. 6 is a schematic diagram of an exemplary touch display device after installing a window panel.

Explanation of reference signs

11 Window plate 12 ITO film

13 Display 14 Control Panel

20 Touch display unit 21 Display module

211 Display panel 212 Display pins

22 Induction spring 221 Induction wire

222 Sensing spring pin 23 Housing

24 window panel 241 display area

242 Non-display area 25 Control panel

detailed description

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, not to limit the present invention.

In describing the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom" etc. indicate an orientation or position The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention.

In the present invention, the mentioned "first, second" and so on are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.

Fig. 2 is a schematic diagram of the composition of a display device provided by an example embodiment of the present invention. As shown in FIG. 2 , the touch display device 20 may include a window board 24 , a display module 21 and a control board 25 . The composition of the display device provided by the embodiment of the present invention will be described in detail below with reference to FIGS. 3-6 .

Fig. 3 is a schematic side view of a touch display device provided by an embodiment of the present invention. As shown in FIG. 3 , the touch display device 20 provided by the embodiment of the present invention may include: a display module 21, including a display panel 211, which may be configured for display; and an induction spring 22, configured to be perpendicular to The orientation of the display panel 211 is such that the axis wraps around the display module 21 so that the capacitance on the sensing spring 22 changes when the touch display device 20 is touched. Correspondingly, the control board 25 shown in FIG. 2 may have a display driving circuit and a touch chip for driving the display panel 211 and detecting the capacitance change signal of the induction spring 22 respectively.

In an embodiment, the display module 21 may be any module with a display function. In one example, the display module 21 may include a display panel 211 , a cooling element, and a display driving circuit for outputting signals to the display panel 211 coupled thereto so that the display panel 211 displays according to the signals. In another example, the display module 21 may only include a display panel 211 and a heat dissipation element, or only include a display panel 211 , and a control board or a printed circuit board PCB coupled to the display module 21 provides signals for display.

In an embodiment, the cross section of the induction spring 22 can be adapted to the shape of the display module 21 , for example, it can be a rectangle or a circle. The material of the induction spring can be materials such as piano carbon steel wire, low carbon steel wire, high carbon steel, manganese steel wire, nickel wire, 60SizMNA, and stainless steel wire for spring. In an embodiment, the diameter of the spring wire of the induction spring is 0.3-1.5 mm.

Through the above technical solution, through the induction spring whose capacitance can be changed when the display module is touched, the touch detection of the display module is realized. This technical solution is suitable for implementation on various display modules, and the touch detection sensitivity is high. The induction spring Compared with the ITO film, it has a larger physical size and good mechanical properties unique to metal materials, and is easy to assemble and low in cost.

FIG. 4 is a schematic diagram of a display panel side of the touch display device shown in FIG. 3 . As shown in FIG. 4 , in an embodiment, the display panel 211 may include one of the following: a liquid crystal display LCD, a light emitting diode LED, and an organic light emitting diode OLED. An example using multiple LEDs is shown in FIG. 4 . The display panel 211 can be turned on or off.

Continuing to refer to FIG. 3 , in an embodiment, the sensing spring 22 may include a sensing line 221 , and the sensing line 221 may be configured to be at least partially located on the plane of the display panel 211 . In an embodiment, the induction wire 221 is a part of the induction spring 22 . In an alternative embodiment, the part of the induction spring 22 located on the plane where the display panel 211 is located and/or near the plane is called an induction line. In an embodiment, the display panel 211 may include a display area (such as the part inside the circle in FIG. 4 ) and a non-display area (such as the part outside the circle in FIG. 4 ), and the sensing line 221 is configured to be at least partially located in the non-display area.

In an embodiment, the touch display device 20 may include a casing 23 configured to encapsulate the display module 21 and the induction spring 22 , as shown in FIG. 4 . In this embodiment, the casing 23 may be a plastic casing. For example, the assembled display module 21 can be put into a mold and filled with glue to form the casing 23 . Various components of the display module 21 can be protected by the housing 23 .

FIG. 5 is a schematic view of the opposite side of the touch display device shown in FIG. 4 . As shown in FIG. 5 , the spring pins 222 and the display pins 212 may be disposed on the side opposite to the display panel of the touch display device 20 . In an embodiment, the induction spring 22 may include a spring pin 222 configured to transmit a signal to the touch chip. The touch display device 20 may include a display pin 212 configured to receive a signal from a display driving circuit. In an embodiment, the touch chip and the display driving circuit may be disposed on a control board such as a PCB, and the control board may be provided with interfaces corresponding to the spring pins 222 and the display pins 212 . The display driving circuit can send a display driving signal to the display pin 212 according to the signal detected by the touch chip indicating that the touch display device 20 is touched.

Fig. 6 is a schematic diagram of an example display device after installing a window panel. As shown in FIG. 6 , the touch display device 20 may further include a window plate 24 covering the display panel 211 , and the window plate 24 is configured to provide a touch interface. In an embodiment, a display area 241 and a non-display area 242 may be provided on the window plate 24 corresponding to the display area and the non-display area of the display panel 211 . The window plate 24 can be made of a cover layer such as inorganic glass, and the thickness can be 2 mm. Patterns can be set on the window plate 24 to cooperate with the display panel 211 , and at the same time, the window plate 24 can protect the display panel 211 .

Another aspect of the embodiments of the present invention provides a household appliance, wherein the household appliance may include the above-mentioned touch display device. Examples of household appliances in the embodiments include but are not limited to stoves, range hoods, dishwashers, ovens, kitchen machines, rice cookers, refrigerators, microwave ovens, and the like.

The optional implementations of the embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above-mentioned embodiments. Within the scope of the technical concept of the embodiments of the present invention, the embodiments of the present invention can be Various simple modifications are made to the technical solution, and these simple modifications all belong to the protection scope of the embodiments of the present invention.

In addition, it should be noted that the various specific technical features described in the above specific implementation manners may be combined in any suitable manner if there is no contradiction. In order to avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

Those skilled in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing the relevant hardware through a program. (processor) executes all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes. .

In addition, various implementations of the embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the idea of the embodiments of the present invention, they should also be regarded as the content disclosed in the embodiments of the present invention.

Claims (10)

1. a kind of touch display unit, it is characterised in that the device includes：

Display module, including display panel, the display panel are arranged to show；And

Sense spring, be configured to wind the display module as axle perpendicular to the direction of the display panel so that work as institute Electric capacity when touch display unit is touched on the sensing spring is stated to be changed.

2. device according to claim 1, it is characterised in that the sensing spring includes the line of induction, the line of induction by with Put to be at least partially disposed at plane where the display panel.

3. device according to claim 2, it is characterised in that the display panel includes viewing area and non-display area Domain, the line of induction are configured to be at least partially disposed at the non-display area.

4. device according to claim 1, it is characterised in that the device includes housing, and the housing is configured to encapsulate institute State display module and the sensing spring.

5. device according to claim 4, it is characterised in that the housing is glue shell.

6. device according to claim 1, it is characterised in that the display panel includes one below person：Liquid crystal display Device LCD, LED, Organic Light Emitting Diode OLED.

7. device according to claim 1, it is characterised in that the sensing spring includes pogo pin, the pogo pin It is configured to be suitable to touch chip transmission signal.

8. according to the touch display unit any one of claim 1-7, it is characterised in that the device also includes form Plate, on said display panel, the window board is configured to provide touch interface for covering.

9. a kind of household electrical appliance, it is characterised in that the household electrical appliance include the touch according to any one of claim 1-8 Display device.

10. household electrical appliance according to claim 9, it is characterised in that the household electrical appliance include one below person：Stove Stove, smoke exhaust ventilator, dish-washing machine, baking box, the mechanical, electrical rice cooker of cook, refrigerator, micro-wave oven.