JP5861561B2 - Manufacturing method and program for light emitting panel device - Google Patents

Description

The present invention relates to the production side Ho及 beauty program emitting panel device.

  In recent years, lighting devices using surface light emitting elements such as organic electroluminescence (EL) elements have been developed. Since it is difficult to increase the area of each surface light emitting element, a light emitting panel device in which a plurality of surface light emitting elements are arranged in a matrix has been developed.

  For example, a surface light emitting device having a light emitting layer between a first electrode and a second electrode, wherein the first electrode is a light transmissive electrode, and the second electrode is light opaque in the light emitting region of the surface light emitting device. There has been proposed a light-emitting panel in which a plurality of surface light-emitting elements, which are electrodes composed of a central portion and a light-transmitting peripheral portion, are arranged so that portions of a light-emitting region overlap each other (see Patent Document 1).

  Further, a planar light-emitting illuminating device in which a plurality of planar light-emitting modules having organic EL elements are arranged in a matrix, and two adjacent planar light-emitting modules are different in high luminance and low luminance. There has been proposed one that is configured to light up with luminance (see Patent Document 2). When adjacent planar light emitting modules are turned on with different luminances, the difference in light output due to variations in the characteristics of the organic EL elements becomes inconspicuous.

  In a lighting system in which light emitting modules are installed in a plurality of partitioned areas arranged in a matrix, empty areas where no light emitting modules are installed are scattered in a group of installation areas where the light emitting modules are installed. Therefore, a technique for making the non-illuminated portion caused by a short circuit of the light emitting module less noticeable has been proposed (see Patent Document 3).

JP 2010-62011 A JP 2009-130132 A JP 2009-110695 A

  However, when manufacturing a large number of surface light emitting elements, there is a problem that the characteristics of the surface light emitting elements vary greatly and the quality is difficult to stabilize. If the surface light emitting elements having different colors and luminances are simply tiled in the order of manufacture, the difference in color and luminance between the individual surface light emitting elements becomes noticeable, and the quality of the light emitting panel device is not stable.

  Further, when manufacturing a light-emitting panel device by collecting only those whose surface light emitting element characteristics are within a predetermined range, a large amount of surface light emitting elements that are not used and are wasted, resulting in a large cost. Become.

  In addition, in order to make the color and brightness uniform by providing a diffusion plate on the light emitting surface side where the surface light emitting device is tiled, it is necessary to increase the distance from the surface light emitting device or the thickness of the diffusion plate. However, problems remain in terms of miniaturization and weight reduction.

  The present invention has been made in view of the above problems in the prior art, and an object thereof is to improve the uniformity and manufacturing stability of a light-emitting panel device in which surface light-emitting elements are tiled.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a method of manufacturing a light-emitting panel device in which a plurality of surface light-emitting elements are tiled. Obtaining two characteristics, obtaining a two-dimensional distribution of the plurality of surface light emitting elements in a two-dimensional plane having the first characteristic and the second characteristic as two axes, and the plurality of surface light emission. The plurality of surface-emitting elements are respectively connected to the plurality of regions depending on which region the first characteristic and the second property of the element belong to which the two-dimensional plane is divided into a plurality of predetermined regions. A step of classifying the plurality of groups into a plurality of groups, a step of extracting one surface light emitting element classified into the group from each of the plurality of groups, and a surface light emitting device for the number of the extracted groups And a step of tiling, the.

  According to a second aspect of the present invention, in the method of manufacturing a light emitting panel device according to the first aspect, in the step of tiling the surface light emitting elements for the number of extracted groups, the surface for the number of extracted groups is used. A light emitting element is arranged at a position corresponding to a region in the two-dimensional plane to which the first characteristic and the second characteristic of each surface light emitting element belong.

  According to a third aspect of the present invention, in the method for manufacturing a light emitting panel device according to the first or second aspect, the first characteristic is any of chromaticity, color temperature, luminance, chromaticity unevenness, or luminance unevenness. The second characteristic is any one of chromaticity, color temperature, luminance, chromaticity unevenness or luminance unevenness, and is different from the first characteristic.

  According to a fourth aspect of the present invention, in the method for manufacturing a light emitting panel device according to any one of the first to third aspects, the surface light emitting element is an organic electroluminescent element.

  According to a fifth aspect of the present invention, in the method for manufacturing a light-emitting panel device according to any one of the first to fourth aspects, a plurality of units each including the surface light emitting elements corresponding to the number of the extracted groups are used as a unit. When tiling the units, the group in which the surface emitting elements constituting the two adjacent units are classified is line-symmetric with respect to the boundary between the two adjacent units as the symmetry axis. The method further includes arranging the unit.

According to a sixth aspect of the present invention, there is provided a computer for determining an arrangement of a plurality of surface light emitting elements constituting a light emitting panel device, wherein a first characteristic and a second characteristic acquired from each of the plurality of surface light emitting elements A function for obtaining a two-dimensional distribution of the plurality of surface light emitting elements in a two-dimensional plane with two axes as the axis, the first characteristic and the second characteristic of the plurality of surface light emitting elements are determined in advance as the two-dimensional plane. A function of classifying the plurality of surface light emitting elements into a plurality of groups corresponding to each of the plurality of regions according to which region divided into a plurality of regions, and from each group of the plurality of groups to the group This is a program for realizing a function of extracting classified surface light emitting elements one by one and a function of determining the positions of surface light emitting elements for the number of extracted groups.

  ADVANTAGE OF THE INVENTION According to this invention, the uniformity and manufacturing stability of the light emission panel apparatus which tiled the surface light emitting element can be improved.

It is a block diagram of the light emission panel apparatus which concerns on this invention. It is sectional drawing of the surface emitting element along the PP line | wire of FIG. It is a block diagram which shows the functional structure of an arrangement | positioning determination apparatus. It is a figure which shows the procedure of the manufacturing method of a light emission panel apparatus. It is a flowchart which shows the arrangement | positioning determination process of a surface emitting element. It is a figure which shows the example of the two-dimensional distribution of the surface emitting element in xy plane. It is an example of arrangement | positioning of the surface light emitting element in a light emission panel apparatus. It is an example of the light emission panel apparatus which tiled the several unit. 6 is an arrangement example of surface light emitting elements in a light emitting panel device of Modification 1; It is an example of arrangement | positioning of the surface emitting element in the light emission panel apparatus of the modification 2. It is an example of arrangement | positioning of the surface emitting element in the light emission panel apparatus of the modification 3. It is a figure which shows the tiling method in the light emission panel apparatus of the modification 4.

  Embodiments of a light emitting panel device according to the present invention will be described below with reference to the drawings. However, it is not limited to the illustrated example.

[Configuration of light-emitting panel device]
FIG. 1 shows a configuration of a light-emitting panel device 100 in the present embodiment. The light emitting panel device 100 is configured by mounting a plurality of surface light emitting elements 10 on a wiring board 20 in a matrix. In the example of FIG. 1, three surface light emitting elements 10 are arranged on one side of the wiring board 20, and nine surface light emitting elements 10 in 3 rows and 3 columns are arranged on the wiring board 20.

The surface light emitting element 10 is a plate-like member having a square shape in plan view.
FIG. 2 shows a cross section of the surface light emitting element 10 along the line P-P in FIG. The surface light emitting element 10 includes a transparent substrate 1 having light transparency, a pair of electrodes 2 and 2, an organic EL light emitting layer 3 interposed between the pair of electrodes 2 and 2, a pair of electrodes 2 and 2, And a sealing plate 4 for sealing the organic EL light emitting layer 3 between the transparent substrate 1 and the organic EL light emitting layer 3. The surface light emitting element 10 is an organic electroluminescence element (organic EL element).

  The transparent substrate 1 is a flat plate member made of a transparent material such as glass, quartz, or a resin material. Examples of the resin material used for the transparent substrate 1 include polyesters such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), polyethylene, polypropylene, nylon, acrylic, cellophane, and the like.

Each of the pair of electrodes 2 and 2 has electrode extraction portions 2 a and 2 a formed at end portions drawn to the outside of the sealing plate 4.
One electrode of the pair of electrodes 2 and 2 is an electrode film serving as an anode for supplying (injecting) holes to the organic EL light emitting layer 3, and a material having a high work function (for example, 4 eV or more) such as metal, It is formed of an electrode material such as an alloy, an electrically conductive compound, and a mixture thereof. Specifically, when emitting light from the transparent substrate 1 side of the surface light emitting element 10, the electrode 2 disposed on the transparent substrate 1 side and serving as an anode is made of, for example, a metal such as Au, CuI, ITO (Indium Tin). Oxide), SnO 2, ZnO and other metal compounds such as a light transmissive electrode material.
The other electrode of the pair of electrodes 2 and 2 is an electrode film serving as a cathode for supplying (injecting) electrons to the organic EL light-emitting layer 3, and is a material having a small work function (for example, 4 eV or less) such as a metal or an alloy. , An electrically conductive compound, and a mixture thereof.

  The organic EL light emitting layer 3 includes various organic layers such as a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer, and emits light when energized in the thickness direction. The light emitting layer is formed of an organic light emitting material including a host compound (light emitting host) and a light emitting material (light emitting dopant).

  The sealing plate 4 is a member exhibiting a “U” shape in cross section having a space in which the organic EL light emitting layer 3 interposed between the pair of electrodes 2 and 2 can be accommodated, and is made of glass, quartz, It is made of a material such as metal or resin, or a composite member thereof. The sealing plate 4 is bonded and fixed to the transparent substrate 1 with, for example, a UV curable adhesive or a thermosetting adhesive.

  The wiring board 20 is a printed board made of, for example, a metal material (iron, stainless steel, aluminum, copper, etc.) and a resin material (glass-containing epoxy resin (Garaepo), ABS, PE, PBT, etc.). A drive circuit and a power supply circuit for driving to emit light are provided.

The terminal member 30 electrically connects the surface light emitting element 10 and the wiring board 20. The terminal member 30 is a member made of a metal material such as phosphor bronze, copper, or aluminum and having a bent shape having a substantially “L” shape in cross section, and has two surfaces, a base end portion 30a side and a protrusion portion 30b side. doing.
The base end portion 30a of the terminal member 30 is joined to the electrode extraction portion 2a by a conductive adhesive portion 40 using, for example, a conductive adhesive such as Ag paste or a conductive adhesive film such as ACF.
The protrusion 30 b of the terminal member 30 extends substantially vertically from the base end 30 a and is formed at a height corresponding to the gap (gap) between the surface light emitting element 10 and the wiring substrate 20. . The protruding portion 30 b of the terminal member 30 is joined to the contact of the wiring board 20 by the solder 50.
By applying a voltage between the pair of electrodes 2 and 2 via the terminal members 30 and 30, the organic EL light emitting layer 3 emits light, and light is irradiated from the surface of the transparent substrate 1.

  The surface emitting element 10 is fixed to the wiring board 20 by bonding the outer surface of the sealing plate 4 to the wiring board 20 via the adhesive 60.

  Further, a diffusion plate (not shown) may be attached so as to cover all the surface light emitting elements 10 of the light emitting panel device 100. The diffusing plate diffuses the irradiation light by the gap between the transparent substrate 1 and the surface of the transparent substrate 1 so that the non-light emitting portion between the surface light emitting elements 10 is not noticeable.

[Configuration of arrangement determination device]
FIG. 3 shows a functional configuration of the arrangement determining apparatus 70. The arrangement determining device 70 is a computer device that determines the arrangement of the plurality of surface light emitting elements 10 constituting the light emitting panel device 100. As shown in FIG. 3, the arrangement determining device 70 includes a CPU 71, a RAM 72, a storage unit 73, an operation unit 74, a display unit 75, a communication unit 76, and the like, and each unit is connected by a bus 77. The arrangement determining device 70 is configured by a general PC (Personal Computer).

  The CPU 71 comprehensively controls the processing operation of each unit of the arrangement determining device 70. In response to an operation signal input from the operation unit 74 or an instruction signal received by the communication unit 76, the CPU 71 reads out various processing programs stored in the storage unit 73, expands them in the RAM 72, and cooperates with the program. Various processes are executed by operation.

  The RAM 72 forms a work area for temporarily storing various processing programs executed by the CPU 71 and data related to these programs.

  The storage unit 73 includes a storage device such as a nonvolatile semiconductor memory or a hard disk, and stores various processing programs, data related to various processes, and the like. For example, the storage unit 73 stores an arrangement determination processing program 731 and the like.

  The operation unit 74 includes a keyboard having cursor keys, character input keys, various function keys, and the like, and a pointing device such as a mouse, and receives an operation input by a user. The operation unit 74 outputs an operation signal input by a key operation on the keyboard or a mouse operation to the CPU 71.

  The display unit 75 includes an LCD (Liquid Crystal Display), and displays various operation screens and various processing results according to instructions from the CPU 71.

  The communication unit 76 transmits / receives data to / from an external device via a communication network. For example, the communication unit 76 receives a value indicating the characteristics of the surface light emitting element 10 measured by an inspection device such as a colorimeter and a luminance meter. The characteristics of the surface light emitting element 10 include chromaticity, color temperature, luminance, chromaticity unevenness, luminance unevenness, and the like. As the chromaticity, various indices indicating the hue and saturation in the color system such as xyLv, XYZ, L * a * b * can be used. As the chromaticity unevenness and luminance unevenness, the half width of the histogram indicating the chromaticity distribution and the luminance distribution measured in one surface light emitting element 10 is used.

[Method for manufacturing light-emitting panel device]
FIG. 4 shows the procedure of the method for manufacturing the light-emitting panel device.
First, the some surface emitting element 10 is manufactured (step S1). Here, each surface light emitting element 10 is in a state where the surface light emitting element 10 shown in FIG. 2 is not yet attached to the wiring board 20.

  Next, for each of the plurality of surface light emitting elements 10, the first characteristic and the second characteristic are measured by the inspection apparatus (step S2). The first characteristic is any one of chromaticity, color temperature, luminance, chromaticity unevenness, or luminance unevenness. The second characteristic is any one of chromaticity, color temperature, luminance, chromaticity unevenness, or luminance unevenness, and is different from the first characteristic. Here, chromaticity x is used as the first characteristic, and chromaticity y is used as the second characteristic.

  Next, in the arrangement determination apparatus 70, the CPU 71 acquires the chromaticity x and y measured for each of the plurality of surface light emitting elements 10 via the communication unit 76, and performs an arrangement determination process for the surface light emitting elements ( Step S3). As the characteristic data of the surface light emitting element 10, the CPU 71 acquires data in which identification information for identifying the surface light emitting element 10 and chromaticity x and y are associated with each other, for example.

  FIG. 5 is a flowchart showing the arrangement determining process of the surface light emitting elements. The arrangement determination process of the surface light emitting element is realized by software processing in cooperation with the CPU 71 and the arrangement determination processing program 731 stored in the storage unit 73.

  First, the CPU 71 obtains a two-dimensional distribution of the surface light emitting elements 10 in a two-dimensional plane (xy plane) with the chromaticities x and y as two axes for the plurality of surface light emitting elements 10 (step S11).

  FIG. 6 shows an example of a two-dimensional distribution of the surface light emitting element 10 in the xy plane. In FIG. 6, chromaticity x and y of the surface light emitting element 10 are plotted for each manufacturing unit (first lot, second lot).

  Next, the CPU 71 divides the xy plane into a plurality of predetermined regions, and determines the plurality of surface light-emitting elements 10 to a plurality of areas depending on which region the chromaticity x, y of the plurality of surface light-emitting elements 10 belongs. Classification into a plurality of groups corresponding to each of the regions (step S12). For example, for the plurality of surface light emitting elements 10, the CPU 71 stores the identification information of the surface light emitting elements 10 and the group into which the surface light emitting elements 10 are classified in the storage unit 73 in association with each other. In addition, it is preferable that each area | region in xy plane is divided so that adjacent area | regions may become a difference of the grade which a human cannot recognize.

  In the example of FIG. 6, the xy plane is a region A1 where 0.378 ≦ x <0.380 and 0.379 ≦ y ≦ 0.382, 0.380 ≦ x <0.382 and 0.379 ≦ y ≦ 0. .382 region A2, 0.382 ≦ x ≦ 0.384 and 0.379 ≦ y ≦ 0.382 region A3, 0.378 ≦ x <0.380 and 0.376 ≦ y <0.379 region A4, region A5 of 0.380 ≦ x <0.382 and 0.376 ≦ y <0.379, region A6 of 0.382 ≦ x ≦ 0.384 and 0.376 ≦ y <0.379, 0. Region A7 with 378 ≦ x <0.380 and 0.373 ≦ y <0.376, Region A8 with 0.380 ≦ x <0.382 and 0.373 ≦ y <0.376, 0.382 ≦ x ≦ The region A9 is divided into 0.384 and 0.373 ≦ y <0.376.

  Next, the CPU 71 extracts one surface light emitting element 10 classified into the group from each group of the plurality of groups one by one (step S13).

  Next, the CPU 71 determines the positions of the surface light emitting elements 10 corresponding to the number of extracted groups as positions corresponding to regions in the xy plane to which the chromaticities x and y of the surface light emitting elements 10 belong (step S14). Here, the “position corresponding to the region in the xy plane” means an arrangement in the same order as the arrangement of the region divided from the xy plane, or the mirror image relationship with the arrangement of the region divided from the xy plane (reverse order in a certain direction). Refers to the arrangement in The CPU 71 causes the storage unit 73 to store arrangement information in which the identification information of the surface light emitting element 10 and the information indicating the position of the surface light emitting element 10 are associated with each other for the extracted surface light emitting elements 10 for the number of groups. .

  Next, the CPU 71 determines whether or not the size of the manufactured light emitting panel device 100 has been reached by the group of surface light emitting elements 10 whose arrangement has been determined (step S15).

  When the size of the light emitting panel device 100 is not reached due to the group of the surface light emitting elements 10 determined to be arranged (step S15; NO), the CPU 71 is classified into the group from each group of the plurality of groups. The surface light emitting elements 10 are extracted one by one (step S16).

  Next, the CPU 71 uses a unit composed of the surface light emitting elements 10 corresponding to the number of groups extracted one by one from each group as a unit, and a group in which the surface light emitting elements 10 constituting two adjacent units are classified. Then, the positions of the surface light emitting elements 10 corresponding to the number of extracted groups are determined so as to be line symmetric with respect to the boundary between the two adjacent units (step S17). Also for the surface light emitting element 10 newly extracted in step S16, the arrangement of the group into which each surface light emitting element 10 is classified corresponds to the region in the xy plane to which the chromaticity x, y of each surface light emitting element 10 belongs. It has become. The CPU 71 adds the identification information of the surface light emitting element 10 and the information indicating the position of the surface light emitting element 10 to the arrangement information of the storage unit 73 for the surface light emitting element 10 whose position has been newly determined. To do.

After step S17, the process returns to step S15 and the process is repeated.
If the size of the light emitting panel device 100 is reached by the group of surface light emitting elements 10 whose arrangement has been determined in step S15 (step S15; YES), the arrangement determination process of the surface light emitting elements ends.

  After the surface light emitting element arrangement determining process (step S3), tiling of each surface light emitting element 10 is performed based on the arrangement information (step S4). For example, in the arrangement determining apparatus 70, the CPU 71 associates the identification information of the surface light emitting element 10 with information indicating the position of the surface light emitting element 10 based on the arrangement information stored in the storage unit 73. It is displayed on the display unit 75. The user arranges each surface light emitting element 10 according to the information indicating the position of each surface light emitting element 10 displayed on the display unit 75, and manufactures the light emitting panel device 100.

  In FIG. 7, the example of arrangement | positioning of the surface emitting element 10 in the light emission panel apparatus 100 is shown. Nine surface emitting elements 10 classified into a plurality of groups B1 to B9 corresponding to a plurality of regions A1 to A9 on the xy plane shown in FIG. 6 are arranged as shown in FIG. In FIG. 7, “B1” to “B9” written in each surface light emitting element 10 indicate groups B1 to B9 into which each surface light emitting element 10 is classified. The surface light emitting elements 10 classified into the groups B1 to B9 are arranged at positions corresponding to the regions A1 to A9 in the xy plane to which the chromaticities x and y of the surface light emitting elements 10 belong.

  FIG. 8 shows an example of a light emitting panel device 100B in which a plurality of units U1 to U4 are tiled. Each of the units U1 to U4 includes nine surface light emitting elements 10 extracted one by one from each of the groups B1 to B9. In FIG. 8, “B1” to “B9” written in each surface light emitting element 10 indicate groups B1 to B9 into which each surface light emitting element 10 is classified.

The arrangement of the nine surface light emitting elements 10 constituting the unit U1 is the same as that of the light emitting panel device 100 shown in FIG.
In the units U1 and U2, the groups B1 to B9 into which the surface light emitting elements 10 constituting each unit are classified are line-symmetric with respect to the straight line L1.
In the units U1 and U3, the groups B1 to B9 into which the surface light emitting elements 10 constituting each unit are classified are line symmetric with respect to the straight line L2.
In the units U2 and U4, the groups B1 to B9 into which the surface light emitting elements 10 constituting each unit are classified are line symmetric with respect to the straight line L2.
In the units U3 and U4, the groups B1 to B9 into which the surface light emitting elements 10 constituting each unit are classified are line symmetric with respect to the straight line L1.

As described above, according to the present embodiment, the surface light emitting elements 10 are classified into a plurality of groups B1 to B9 based on the two-dimensional distribution with the two characteristics of the surface light emitting element 10 as two axes. Since the surface light emitting elements 10 classified into the group are extracted one by one from the groups B1 to B9 and tiled, the characteristics of the surface light emitting elements 10 in the light emitting panel device 100 can be prevented from being biased. Therefore, the uniformity and manufacturing stability of the light emitting panel device 100 in which the surface light emitting element 10 is tiled can be improved.
Further, the surface light emitting elements 10 classified into the groups B1 to B9 are arranged at positions corresponding to the regions A1 to A9 in the two-dimensional plane to which the characteristics of the surface light emitting elements 10 belong, so that the surface light emitting elements adjacent to each other. Therefore, the difference in the characteristics of the surface light emitting element 10 is not conspicuous.

Further, in the light emitting panel device 100B shown in FIG. 8, the surface light emitting elements 10 classified into the groups B1 to B9 are tiled one by one in each unit U1 to U4. The characteristics of the surface light emitting element 10 are not biased, and the uniformity and manufacturing stability of the light emitting panel device 100B can be improved.
Further, in the light emitting panel device 100B, the plurality of units are arranged so that the group in which the surface light emitting elements 10 constituting the two adjacent units are classified is line symmetric with respect to the boundary between the two adjacent units. Since they are arranged, the adjacent surface light emitting elements 10 across the boundary between the units form the same group, and the difference in the characteristics of the surface light emitting elements 10 at the boundary portion between the units can be reduced.

  Further, conventionally, surface light emitting elements having as uniform characteristics as possible were manufactured, and those whose characteristics did not satisfy a predetermined standard were discarded, but according to the present embodiment, of the manufactured surface light emitting elements Since the range of usable characteristics is widened, the yield can be improved. Therefore, the cost can be reduced as compared with the conventional case.

  Further, by improving the uniformity of the light emitting panel devices 100 and 100B, when the diffusion plate is used, the diffusion plate can be made thin, so that the overall weight of the device can be reduced. Moreover, since the brightness | luminance loss by a diffuser plate reduces by making a diffuser plate thin, power consumption can be reduced.

  In addition, the surface light emitting element 10 which comprises the light emission panel apparatuses 100 and 100B may be not only square shape in planar view but rectangular shape. In addition, the shape of the surface light emitting element 10 may be different in aspect ratio from the shape of a region obtained by dividing a two-dimensional plane having two characteristics of the surface light emitting element 10 as two axes.

  Further, in the manufacture of the surface light emitting element 10, it is considered that the target values of the chromaticity x and y are set near the area A5 shown in FIG. That is, it is expected that more surface light emitting elements 10 having chromaticities x and y belonging to the region A5 are manufactured than the surface light emitting elements 10 belonging to the other regions A1 to A4 and A6 to A9. Accordingly, in the light emitting panel device 100 shown in FIG. 7 and the light emitting panel device 100B shown in FIG. 8, the surface light emitting elements 10 classified into the group B5 corresponding to the region A5 are assigned to the other groups B1 to B4 and B6 to B9. It is good also as arrange | positioning instead of the classified surface emitting element 10. FIG.

[Modification 1]
FIG. 9 is an arrangement example of the surface light emitting elements 10C in the light emitting panel device 100C of the first modification. The surface light emitting element 10C is different from the surface light emitting element 10 shown in the above embodiment in that it has a regular triangular shape in plan view, but the other configuration is the same as that of the surface light emitting element 10.

  First, the first characteristic and the second characteristic are obtained for each of the plurality of surface light emitting elements 10C, and the plurality of surface light emitting elements 10C in a two-dimensional plane having the first characteristic and the second characteristic as two axes. Is obtained.

  Next, the first characteristic and the second characteristic of the plurality of surface light emitting elements 10C are plural depending on which region the two-dimensional plane is divided into a plurality of predetermined regions (regular triangular regions). The surface light emitting elements 10C are classified into a plurality of groups C1 to C8 corresponding to the plurality of regions. In the first modification, the plurality of regions divided in the two-dimensional plane correspond to the arrangement of the eight surface light emitting elements 10C included in the unit U11.

  Next, the surface light emitting elements 10C classified into the group are extracted one by one from each of the plurality of groups C1 to C8, and the surface light emitting elements 10C corresponding to the number of the extracted groups are extracted. The first characteristic and the second characteristic are arranged at positions corresponding to regions in the two-dimensional plane to which the first characteristic and the second characteristic belong.

  The light emitting panel device 100C includes units U11 to U14. Each of the units U11 to U14 includes eight surface light emitting elements 10C extracted from the groups C1 to C8 one by one. In FIG. 9, “C1” to “C8” written in each surface light emitting element 10C indicate groups C1 to C8 into which each surface light emitting element 10C is classified.

According to the light emitting panel device 100C of the first modification, the surface light emitting elements 10C are classified into a plurality of groups C1 to C8 based on the two-dimensional distribution with the two characteristics of the surface light emitting element 10C as two axes, and each unit U11 In U14, since the surface light emitting elements 10C classified into the groups are extracted one by one from the groups C1 to C8 and tiled, the characteristics of the surface light emitting elements 10C are not biased in the light emitting panel device 100C. can do. Therefore, it is possible to improve the uniformity and manufacturing stability of the light emitting panel device 100C in which the surface light emitting element 10C is tiled.
Further, by arranging the surface light emitting elements 10C classified into the groups C1 to C8 at positions corresponding to regions in a two-dimensional plane to which the characteristics of the surface light emitting elements 10C belong, the characteristics of the surface light emitting elements 10C adjacent to each other. Therefore, the difference in the characteristics of the surface light emitting element 10C is not conspicuous.

[Modification 2]
FIG. 10 is an arrangement example of the surface light emitting element 10D in the light emitting panel device 100D of the second modification. The surface light emitting element 10D is different from the surface light emitting element 10 shown in the above embodiment in that it has a regular hexagonal shape in plan view, but the other configurations are the same as those of the surface light emitting element 10.

  First, the first characteristic and the second characteristic are obtained for each of the plurality of surface light emitting elements 10D, and the plurality of surface light emitting elements 10D in a two-dimensional plane having the first characteristic and the second characteristic as two axes. Is obtained.

  Next, a plurality of surface light emitting elements 10D have a plurality of first characteristics and second characteristics depending on which region the two-dimensional plane is divided into a plurality of predetermined regions (regular hexagonal regions). Are divided into a plurality of groups D1 to D9 corresponding to each of the plurality of regions. In the modified example 2, the plurality of regions divided in the two-dimensional plane correspond to the arrangement of the nine surface light emitting elements 10D included in the unit U21.

  Next, the surface light emitting elements 10D classified into the group are extracted one by one from each group of the plurality of groups D1 to D9, and the surface light emitting elements 10D corresponding to the extracted number of groups are extracted. The first characteristic and the second characteristic are arranged at positions corresponding to regions in the two-dimensional plane to which the first characteristic and the second characteristic belong.

  The light emitting panel device 100D includes units U21 to U24. Each of the units U21 to U24 includes nine surface light emitting elements 10D extracted one by one from the groups D1 to D9. In FIG. 10, “D1” to “D9” written in each surface light emitting element 10D indicate groups D1 to D9 into which each surface light emitting element 10D is classified.

According to the light emitting panel device 100D of Modification 2, the surface light emitting elements 10D are classified into a plurality of groups D1 to D9 based on a two-dimensional distribution with the two characteristics of the surface light emitting element 10D as two axes, and each unit U21 In U24, the surface light emitting elements 10D classified into the groups D1 to D9 are extracted and tiled one by one, so that the characteristics of the surface light emitting elements 10D are not biased in the light emitting panel device 100D. can do. Accordingly, it is possible to improve the uniformity and manufacturing stability of the light emitting panel device 100D in which the surface light emitting element 10D is tiled.
In addition, the surface light emitting elements 10D classified into the groups D1 to D9 are arranged at positions corresponding to regions in the two-dimensional plane to which the characteristics of the surface light emitting elements 10D belong, so that the characteristics of the surface light emitting elements 10D adjacent to each other. Therefore, the difference in the characteristics of the surface light emitting element 10D is not conspicuous.

[Modification 3]
FIG. 11 is an arrangement example of the surface light emitting element 10E in the light emitting panel device 100E of the third modification. The surface light emitting element 10E is different from the surface light emitting element 10 shown in the above embodiment in that it has a regular hexagonal shape in plan view, but the other configurations are the same as those of the surface light emitting element 10.

  First, the first characteristic and the second characteristic are obtained for each of the plurality of surface light emitting elements 10E, and the plurality of surface light emitting elements 10E in a two-dimensional plane with the first characteristic and the second characteristic as two axes. Is obtained.

  Next, a plurality of first and second characteristics of the plurality of surface light-emitting elements 10E depend on which region the two-dimensional plane is divided into a plurality of predetermined regions (regular hexagonal regions). Are divided into a plurality of groups E1 to E9 corresponding to each of the plurality of regions. In Modification 3, the plurality of regions divided in the two-dimensional plane correspond to the arrangement of the nine surface light emitting elements 10E included in the unit U31.

  Next, the surface light emitting elements 10E classified into the group are extracted one by one from each of the plurality of groups E1 to E9, and the surface light emitting elements 10E corresponding to the extracted number of groups are extracted. The first characteristic and the second characteristic are arranged at positions corresponding to regions in the two-dimensional plane to which the first characteristic and the second characteristic belong.

  The light emitting panel device 100E includes units U31 to U34. The units U31 to U34 are each composed of nine surface light emitting elements 10E extracted one by one from each group E1 to E9. In FIG. 11, “E1” to “E9” written in each surface light emitting element 10E indicate groups E1 to E9 into which each surface light emitting element 10E is classified.

According to the light emitting panel device 100E of the third modification, the surface light emitting elements 10E are classified into a plurality of groups E1 to E9 based on a two-dimensional distribution with the two characteristics of the surface light emitting element 10E as two axes, and each unit U31. In U34, the surface light emitting elements 10E classified into the groups are extracted one by one from the groups E1 to E9 and tiled one by one, so that the characteristics of the surface light emitting elements 10E are not biased in the light emitting panel device 100E. can do. Therefore, the uniformity and manufacturing stability of the light emitting panel device 100E in which the surface light emitting element 10E is tiled can be improved.
Further, the surface light emitting elements 10E classified into the groups E1 to E9 are arranged at positions corresponding to regions in the two-dimensional plane to which the characteristics of the surface light emitting elements 10E belong, so that the characteristics of the surface light emitting elements 10E adjacent to each other. Therefore, the difference in the characteristics of the surface light emitting element 10E is not conspicuous.

[Modification 4]
12A to 12C show a tiling method in the light emitting panel device 100F of the fourth modification. Since the surface light emitting element 10 constituting the light emitting panel device 100F is the same as the surface light emitting element 10 described in the above embodiment, the same reference numerals are used and description thereof is omitted.

  In the modified example 4, only the processes of step S14 and step S17 are different in the arrangement determination process of the surface light emitting element of FIG. 5, and the other processes are the same as the manufacturing method of the light emitting panel device shown in FIG. 4 and FIG. It is the same. Hereinafter, a characteristic part of Modification 4 will be described.

  When the CPU 71 of the arrangement determining device 70 determines the positions of the surface light emitting elements 10 for the number of groups extracted in step S13, first, as with the light emitting panel device 100 shown in FIG. The positions of the surface light emitting elements 10 are positions corresponding to the regions A1 to A9 in the xy plane to which the chromaticities x and y of the surface light emitting elements 10 belong.

  Next, as shown in FIG. 12A, the CPU 71 performs a row F1 including the surface light emitting elements 10 classified into the groups B1, B2, and B3, and the surface light emitting elements 10 classified into the groups B4, B5, and B6. The position of the row F2 is exchanged in units of rows.

  Next, as illustrated in FIG. 12B, the CPU 71 includes a column G1 including the surface light emitting elements 10 classified into the groups B4, B1, and B7 and the surface light emitting elements 10 classified into the groups B5, B2, and B8. The position of the column G2 consisting of is exchanged in units of columns.

  FIG. 12C shows an arrangement example of the surface light emitting elements 10 in the light emitting panel device 100F after the positions of the columns G1 and G2 are exchanged.

  According to the light emitting panel device 100F of Modification 4, the surface light emitting elements 10 are classified into a plurality of groups B1 to B9 based on a two-dimensional distribution with two characteristics of the surface light emitting elements 10 as two axes, and each group B1 Since the surface light emitting elements 10 classified into the group are extracted and tiled one by one from -B9, the characteristics of the surface light emitting elements 10 can be prevented from being biased in the light emitting panel device 100F. Therefore, the uniformity and manufacturing stability of the light emitting panel device 100F in which the surface light emitting element 10 is tiled can be improved.

  In the modification 4, as in the light emitting panel device 100B shown in FIG. 8, the group in which the surface light emitting elements 10 constituting the two adjacent units are classified is the boundary between the two adjacent units. A larger light-emitting panel device may be manufactured by arranging a plurality of units so as to be symmetric with respect to the axis of symmetry.

  In addition, the description in the said embodiment and the modifications 1-4 is an example of the light emission panel apparatus which concerns on this invention, and is not limited to this. The detailed configuration of each part constituting the light emitting panel device can be changed as appropriate without departing from the spirit of the present invention.

  For example, the number of regions when dividing a two-dimensional plane having two axes of the first characteristic and the second characteristic of the surface light emitting element into a plurality of regions is not limited to the above example, and can be arbitrarily changed. It is.

  In addition, the first characteristic and the second characteristic of the surface light emitting element are not limited to xy chromaticity, and arbitrary characteristics indicating chromaticity, color temperature, luminance, chromaticity unevenness, and luminance unevenness can be used. For example, as a combination of the first characteristic and the second characteristic, a combination of chromaticity and chromaticity unevenness, luminance and luminance unevenness, chromaticity unevenness and luminance unevenness, or the like may be used. Further, as the first characteristic and the second characteristic, the same kind of characteristics such as luminance and luminance with different measurement methods may be used.

  Further, when chromaticity unevenness or luminance unevenness is large in the surface light emitting element, the surface light emitting element may be rotated around an axis orthogonal to the surface of the surface light emitting element and arranged in a direction in which the unevenness is not noticeable. Moreover, about each surface light emitting element, the parameter | index which shows the direction of nonuniformity may be acquired and you may rotate so that the direction of nonuniformity of adjacent surface light emitting elements may not match.

  Further, as in the first to third modifications, when the surface light emitting element is not a square shape in plan view or a rectangular shape in plan view, the position where the surface light emitting element is disposed is strictly 2 with two characteristics as two axes. It does not have to be the same as the method of dividing the region in the dimension plane.

  In the above description, an example in which a nonvolatile semiconductor memory, a hard disk, or the like is used as a computer-readable medium storing a program is disclosed, but the present invention is not limited to this example. As another computer-readable medium, a portable recording medium such as a CD-ROM can be applied. A carrier wave may be applied as a medium for providing program data via a communication line.

DESCRIPTION OF SYMBOLS 1 Transparent substrate 2 Electrode 3 Organic electroluminescent light emitting layer 4 Sealing board 10 Surface light emitting element 10C Surface light emitting element 10D Surface light emitting element 10E Surface light emitting element 70 Arrangement | determination apparatus 100 Light emitting panel apparatus 100B Light emitting panel apparatus 100C Light emitting panel apparatus 100D Light emitting panel apparatus 100E light emitting panel device 100F light emitting panel device 731 arrangement determination processing program

Claims (6)

In a method for manufacturing a light emitting panel device in which a plurality of surface light emitting elements are tiled,
Obtaining a first characteristic and a second characteristic for each of the plurality of surface light emitting elements;
Obtaining a two-dimensional distribution of the plurality of surface light emitting elements in a two-dimensional plane having the first characteristic and the second characteristic as two axes;
The plurality of surface light-emitting elements are classified according to which region the first characteristic and the second property of the plurality of surface light-emitting elements belong to a plurality of predetermined regions divided into the two-dimensional plane. Classifying into a plurality of groups corresponding to each of a plurality of regions;
Extracting one surface light emitting element classified into the group from each group of the plurality of groups one by one;
Tiling the surface emitting elements for the number of the extracted groups;
Manufacturing method of the light emission panel apparatus containing this. In the step of tiling the surface light emitting elements for the extracted number of groups, the first characteristics and the second characteristics of the surface light emitting elements belong to the surface light emitting elements for the extracted number of groups. Arranged at a position corresponding to the region in the two-dimensional plane;
The manufacturing method of the light emission panel apparatus of Claim 1. The first characteristic is any one of chromaticity, color temperature, luminance, chromaticity unevenness, or luminance unevenness,
The second characteristic is any one of chromaticity, color temperature, luminance, chromaticity unevenness or luminance unevenness, and is different from the first characteristic.
The manufacturing method of the light emission panel apparatus of Claim 1 or 2. The surface light emitting element is an organic electroluminescence element,
The manufacturing method of the light emission panel apparatus as described in any one of Claim 1 to 3. When tiling a plurality of units with a unit composed of the surface light emitting elements for the number of extracted groups as a unit, a group in which each surface light emitting element constituting two adjacent units is classified Further including the step of arranging the plurality of units so as to be line symmetric with respect to a boundary between two matching units.
The manufacturing method of the light emission panel apparatus as described in any one of Claim 1 to 4. In a computer that determines the arrangement of a plurality of surface light emitting elements constituting a light emitting panel device,
A function for obtaining a two-dimensional distribution of the plurality of surface light-emitting elements in a two-dimensional plane having the first characteristic and the second characteristic acquired from each of the plurality of surface light-emitting elements as two axes;
The plurality of surface light-emitting elements are classified according to which region the first characteristic and the second property of the plurality of surface light-emitting elements belong to a plurality of predetermined regions divided into the two-dimensional plane. A function to classify into a plurality of groups corresponding to each of a plurality of areas,
A function of extracting one surface emitting element classified into the group from each of the plurality of groups,
A function of determining the positions of the surface emitting elements for the number of the extracted groups,
A program to realize

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