JP2014154365A - Planar light emitting module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a planar light emitting module capable of performing the wiring to the planar light emitting module by means of smaller number of through-holes when providing the through-holes for such wiring as to supply electric power to planar light emitting panels from an external part, when the plurality of planar light emitting panels are arrayed on a base stand to form the light emitting module.SOLUTION: A planar light emitting module is configured such that a plurality of planar light emitting panels are arrayed in straight line shape on the surface of a base stand. Therein, the planar light emitting panels have a rectangular shape, one edge thereof is power-receiving edge having a power-receiving terminal, the plurality of planar light emitting panels are arrayed in such a direction that the power receiving edge gets to perpendicular to the direction of the straight line and, in the planar light emitting panels adjacent to each other, at least one set of planar light emitting panels arranged such that the power receiving edges face each other exist.

Description

  The present invention relates to a surface light emitting module using a surface light emitting panel.

  Conventionally, incandescent bulbs and fluorescent lamps have been widely used as illumination devices. On the other hand, in recent years, surface-emitting lighting equipment has been attracting attention as next-generation lighting because of its soft impression light and energy saving performance, and organic electroluminescence (organic EL (Electro Luminescence), OEL: Organic Electro Luminescence). Inorganic electroluminescence, or a combination of a light emitting diode and a light guide plate has been developed. In particular, organic EL has been attracting attention because it can reduce the size and weight of the device and generate little heat.

  Organic EL refers to a phenomenon in which energy is applied to a light emitting material made of an organic substance by applying a voltage, and energy is released as light when the excited light emitting material returns to its original state. An organic EL light-emitting element that is a light-emitting element using organic EL technology includes an organic layer containing a light-emitting material made of an organic substance, and two electrodes (a cathode and an anode) facing each other so as to sandwich the organic layer. A structure in which layers are sequentially stacked is generally used.

Since the organic EL can change the emission wavelength by changing the type of the light emitting material, for example, white light can be obtained by mixing three types of light emitting materials of red, green, and blue. Further, for example, two or more types of light-emitting elements containing different light-emitting materials are alternately formed in a stripe shape to obtain variable-color surface-emitting illumination that allows a current to flow independently for each color.
Such surface-emitting illumination can be used for lighting applications, buildings, interiors in vehicles, exteriors, etc. by taking advantage of characteristics such as thinness, lightness, and soft light emission. The following patent document 1 is mentioned as an example using the surface emitting illumination using organic EL as general illumination.

  In addition, a technique for forming a larger light-emitting module by arranging a plurality of surface-emitting panels on a base in order to make the surface-emitting illumination have a larger area and higher luminance is also known (Patent Document 2).

JP 2011-18483 A JP 2009-152137 A

When the light emitting module is formed by arranging the surface light emitting panels on the base, the wiring for supplying power from the outside to the surface light emitting panel is arranged on the side opposite to the surface light emitting panel of the base. Therefore, it is necessary to supply power to each surface emitting panel by providing a through hole in the base and wiring in the inside, or by providing a connector in the through hole and wiring through it.
This through-hole must be formed for each surface-emitting panel. When the number of surface-emitting panels used increases, the processing cost of the base increases and the strength of the base decreases as the number of through-holes increases. Problem arises.

  Accordingly, there has been a demand for a light emitting module structure that can be wired to a surface light emitting panel with a small number of through holes.

In order to achieve the above object, the surface light emitting module of the present invention is a surface light emitting module in which a plurality of surface light emitting panels are linearly arranged on the surface of a base, and the surface light emitting panel is rectangular,
And one side is a power receiving side having a power receiving terminal, and the plurality of surface light emitting panels are arranged in such a direction that the power receiving side is perpendicular to the direction of the straight line. There is at least one set of the surface-emitting panels arranged so that the power receiving sides face each other.

Furthermore, it is preferable that wiring for supplying electric power to the surface emitting panel is provided on the back surface of the base.
Furthermore, it is preferable that the wiring is connected to the power receiving terminal through a through hole provided in the base at a position corresponding to the power receiving terminal of the surface emitting panel in the base.
Moreover, it is preferable that the said wiring is connected to the power receiving terminal through the connector provided in the base in the position corresponding to the said power receiving terminal of the said surface emitting panel in the said base.
Moreover, it is preferable that at least a part of the wiring is disposed in a groove provided on the back surface of the base.

Furthermore, in the surface emitting module in which n pieces of the surface emitting panels are arranged, it is preferable that the number of the through holes or the connectors is represented by the following formula (1).
n / 2 (when n is an even number), (n + 1) / 2 (when n is an odd number) (1)

  By using the surface emitting module having the above-described configuration, the positions of the power receiving terminals of the adjacent surface emitting panels are brought close to each other. As a result, the number of through holes in the base for the surface emitting module can be reduced, and the processing cost is reduced. The strength of the base can be secured at the same time.

It is a schematic diagram showing the surface emitting module of this invention. It is the top view which showed the receiving side and receiving terminal of the surface emitting panel used for this invention. It is the top view which looked at the state of the surface emitting module of this invention which arranged the some surface emitting panel on the base surface from the surface side of the base. It is the upper side figure which looked at the power receiving terminal and wiring state of a base back of the surface emitting module of this invention from the back side of the base. It is the upper side figure which looked at the power receiving terminal and wiring state of the base back of the surface emitting module by a prior art from the back side of the base. It is sectional drawing which shows an example of 2nd embodiment of this invention. It is a top view which shows an example of 3rd embodiment of this invention. It is sectional drawing of the organic electroluminescent surface emitting panel used for this invention. It is a perspective view of the organic electroluminescent surface emitting panel used for this invention.

  Hereinafter, embodiments of the present invention will be described in detail based on examples and modifications with reference to the drawings. In addition, this invention is not limited to the content demonstrated below, In the range which does not change the summary, it can change arbitrarily and can implement. The drawings used for explaining each embodiment schematically show the illumination system according to the present invention, and are partially emphasized, enlarged, reduced, or omitted to deepen the understanding. In some cases, the scale and shape of each constituent member are not accurately represented. Furthermore, the various numerical values used in each embodiment are merely examples, and can be variously changed as necessary.

(First embodiment)
An example of this embodiment is shown in FIG. 1 as a first embodiment. The surface light emitting module 1 includes at least a plurality of surface light emitting panels 3 and a base 2 that supports them.
Examples of the surface light emitting panel 3 include organic EL, inorganic EL, or a combination of an LED and a light guide plate. The surface light emitting panel 3 may be hard or hard to be deformed, or may be flexible. Among them, the one using an organic EL capable of emitting light independently in principle is most preferable.

The surface light emitting panel 3 has a light emitting surface that emits light. A circuit for controlling light emission may be provided inside the panel.
FIG. 2 is a schematic diagram of the surface light emitting panel 3 on the side opposite to the light emitting surface. The surface light emitting panel 3 is rectangular (including a square), and has a pair of positive and negative power receiving terminals 5 for receiving electric power for causing the surface light emitting panel 3 to emit light on the power receiving side 4 which is one side thereof.
In addition, the rectangle said here shall include a thing with some distortion, a rounded corner | angular part, etc. In addition, the power receiving terminal 5 provided on the power receiving side 4 may be provided in a region slightly inside the panel from the power receiving side 4.

  The base 2 is a substantially flat object made of a resin such as polycarbonate or acrylic, or a metal such as aluminum or iron, and functions as a support for supporting a plurality of surface emitting panels. In the base 2, the side on which the surface light emitting panel 3 is arranged is the front surface 21 of the base 2, and the opposite surface is the back surface 22. It is preferable that a concave portion is provided on the surface of the base 2 at a position where the surface light emitting panel 3 is arranged so that the surface light emitting panel 3 can be positioned accurately. If a part of the surface 21 of the base 2 that is in contact with the surface light emitting panel 3 is made of a material having high thermal conductivity such as aluminum or copper, it may also serve as a heat dissipation plate that releases heat from the surface light emitting panel 3. it can.

On the surface 21 of the base 2, as shown in FIG. 3, a plurality of surface light emitting panels 3 (indicated by 31, 32, 33 in the figure) are arranged in a straight line. The surface-emitting illumination panel 3 is fixed to the base 2 by a method such as screwing, fitting, or adhesion.
In FIG. 3, the three surface light emitting panels 31, 32, and 33 are arranged in a straight line, but the surface light emitting side 4 of each surface light emitting panel 3 is oriented in a direction that is perpendicular to the direction of the straight line. A light emitting panel is arranged. At this time, as shown in the surface light emitting panels 31 and 32 of FIG. 3, there are at least one pair of the surface light emitting panels 3 arranged so that the power receiving sides 4 face each other in the two adjacent surface light emitting panels 3. Thus, the surface light emitting panel 3 is arranged on the surface of the base 2. That is, the position of the power receiving side 4 in the surface light emitting panel 3 is not aligned in the same direction with respect to the arrangement direction in all the surface light emitting panels 3, but at least one suitable direction of the surface light emitting panel 3 is adjacent. The above arrangement can be realized by inverting 180 ° with respect to the surface light emitting panel 3.

  A schematic view seen from the back surface 22 of the base 2 is shown in FIG. On the back surface 22 side, a wiring 6 for supplying power to the surface light emitting panel 3 is provided. A groove 23 may be formed on the back surface 22 of the base 2 and the wiring 6 may be passed through the groove 23. By passing through the groove 23, the wiring 6 is prevented from protruding from the base 2, the thickness of the surface emitting module 1 can be reduced, and wiring work is facilitated. In addition, when performing wiring, each surface emitting panel 3 may be connected in parallel, and can also be connected in series.

As shown in FIGS. 3 and 4, in order to connect the wiring 6 and the power receiving terminal 5, a through hole 7 is provided in the base 2 at a position corresponding to the power receiving terminal 5. At this time, as shown in FIG. 4, in the surface emitting panels 31 and 32 arranged so that the power receiving sides 4 face each other, one through hole 71 provided near the boundary between the surface emitting panels 31 and 32 is used. Wiring 6 to power receiving terminal 5 of both panels
Can be connected (the connection state to the power receiving terminal is omitted in FIG. 4). That is, two through holes 7 71 and 72 are necessary for supplying power to the three surface light emitting panels.

On the other hand, in the method of arranging all the surface light emitting panels 3 in the same direction as shown in FIG. 5, one through hole 7 is required for each surface light emitting panel 3, and 73, 74, and 75 are provided at three locations. It will take.
The number of the surface emitting panels 3 is not limited to three as described above, and may be any number as long as it is two or more. When four or more surface light emitting panels 3 are arranged, it is possible to arrange two or more surface light emitting panels 3 arranged so that the power receiving sides 4 of the adjacent surface light emitting panels 3 face each other. It is. Of course, such an embodiment is particularly preferable because the number of the through holes 7 can be reduced to the maximum by arranging the power receiving sides 4 of as many surface emitting panels 3 as possible to face each other. The required number of through holes 7 when n surface emitting panels 3 are arranged in the same direction is n. On the other hand, the number of through holes 7 when the required number of through holes 7 is reduced to the maximum is provided. The number is represented by the following formula (1).

n / 2 (when n is an even number), (n + 1) / 2 (when n is an odd number) (1)
By reducing the number of through holes 7 provided in the base 2 in this way, processing of the base 2 and wiring work are simplified. Further, there is an advantage that the strength of the base 2 is increased by increasing the interval between the through holes 7.
When the surface light emitting panel 3 is arranged on the base 2 so that the number of the through holes 7 is minimized, a structure that fits when each surface light emitting panel 3 is installed in the correct orientation is provided. When the direction of the light emitting panel 3 is wrong, it is a preferable form for the convenience of the user that it cannot be placed on the base 2.

If two or more sets of power receiving terminals 5 are provided on the surface light emitting panel 3 and the power receiving sides 4 are two opposite sides of the surface light emitting panel 3, the number of through holes 7 can be reduced regardless of the arrangement direction of the surface light emitting panel 3. The structure of the surface light emitting panel 3 becomes complicated, resulting in an increase in cost.
A signal line (for example, a signal line corresponding to DALI, DMX, etc.) for controlling the surface light emitting module 1 from the outside can be connected to the surface light emitting panel 3 through the through hole 7.

(Second embodiment)
As a second embodiment, as shown in FIG. 6, there is a structure in which a connector 8 for electrically connecting the front surface 21 and the back surface 22 is embedded in the through hole 7 of the first embodiment.
The wiring 6 is connected to the connector 8 on the back surface 22, and the connector 8 is connected to the power receiving terminal 5 of the surface light emitting panel 3 on the front surface 21, thereby supplying power to the surface light emitting panel 3. Since the surface light emitting panel 3 can be arranged on the base 2 and at the same time, the power receiving terminal 5 and the connector 8 can be joined, the wiring work to the surface light emitting panel 3 is simplified. The connector 8 may be capable of connecting a signal line (for example, a signal line corresponding to DALI, DMX, etc.) for controlling the surface emitting module 1 from the outside.

(Third embodiment)
In the surface light emitting module 1 represented in the first and second embodiments, the entire light emitting region is formed in a long and narrow band shape, and a square light emitting region is formed by arranging a plurality of the surface light emitting modules 1. Can do. Although FIG. 7 shows an example in which three surface emitting modules 1 are attached between two rails 9, it is possible to form a large area light emitting region by such a method by an extremely simple operation.

<About the structure of the surface emitting panel 3>
Hereinafter, an example of the configuration of the surface light emitting panel 3 using the most preferable organic EL as the surface light emitting panel in the above embodiment (hereinafter referred to as an organic EL surface light emitting panel) will be described in detail, but the present invention is limited to this. However, it is possible to appropriately use a surface emitting panel using a conventionally known organic EL.

The organic EL surface light emitting panel 3 will be described in detail with reference to FIGS. 8 and 9. Here, FIG. 8 is a perspective view of the organic EL surface light emitting panel 3 according to the present embodiment, and FIG. 9 is a cross-sectional view of the organic EL surface light emitting panel 3 according to the present embodiment.
As shown in FIG. 8, the organic EL surface light emitting panel 3 includes a transparent substrate 11, an organic EL light emitting element 12, a light diffusion part 13, and a sealing part 14. The organic EL light emitting element 12 is classified into three types: an organic EL light emitting element 12R whose emission color is red, an organic EL light emitting element 12G whose emission color is green, and an organic EL light emitting element 12B whose emission color is blue. The

In the present embodiment, the transparent substrate 11 is a glass substrate. The transparent substrate 11 may be a substrate having a property of transmitting visible light. For example, the transparent substrate 11 is made of a transparent resin such as polyester, polymethacrylate, polycarbonate, polyimide, polyethylene terephthalate, polyethylene naphthalate, or polysulfone; May be.
As a more specific configuration of the organic EL surface light emitting panel 3, a plurality of organic EL light emitting elements 12R, organic EL light emitting elements 12G, and organic EL light emitting elements 12B are provided on the organic EL light emitting element forming surface 11a of the transparent substrate 11. Adjacent elements are arranged in parallel in a striped manner, separated from each other. These organic EL light emitting elements are repeatedly arranged in the order of the organic EL light emitting elements 12R, 12G, and 12B. With such a configuration, the red light emitted from the organic EL light emitting element 12R, the green light emitted from the organic EL light emitting element 12G, and the blue light emitted from the organic EL light emitting element 12B are synthesized, and organic The combined light of uniform color is emitted from the EL surface emitting panel 3 as a whole. Note that the number of each of the organic EL light emitting elements 12R, 12G, and 12B that emit light of each color may be one, but the light emitting surface is enlarged and the organic EL surface light emitting panel 3 is increased in luminance and good. In the case of mixing light, it is preferable to arrange many organic EL light emitting elements 12R, 12G, and 12B in parallel. Moreover, each organic EL light emitting element may be spaced apart by providing the partition (not shown) which consists of insulating resin etc. between each organic EL light emitting element.

  As shown in FIG. 9, the organic EL light emitting element 12R whose emission color is red includes an anode (transparent electrode) 15R formed on the transparent substrate 11, an organic layer 16R formed on the anode 15R, and an organic layer 16R. It is comprised from the cathode (metal electrode) 17R formed on the top. Similarly, the organic EL light emitting element 12G whose emission color is green was formed on the anode (transparent electrode) 15G formed on the transparent substrate 11, the organic layer 16G formed on the anode 15G, and the organic layer 16G. An organic EL light emitting device 12B composed of a cathode (metal electrode) 17G and emitting blue is an anode (transparent electrode) 15B formed on the transparent substrate 11, an organic layer 16B formed on the anode 15B, organic It consists of a cathode (metal electrode) 17B formed on the layer 16B. When any of the anodes 15R, 15G, and 15B is not designated, it is simply referred to as the anode 15, and when any of the organic layers 16R, 16G, and 16B is not designated, it is simply referred to as the organic layer 16, and the cathodes 17R and 17G. , 17B may be simply referred to as the cathode 17 when not designated. That is, in this embodiment, the anode 15, the organic layer 16, and the cathode 17 constituting each organic EL light emitting element 12 are sequentially laminated on the transparent substrate 11.

Further, the planar shapes (that is, areas) of the anode 15, the organic layer 16, and the cathode 17 are substantially the same. Therefore, the side surfaces of the anode 15, the organic layer 16, and the cathode 17 are the same plane, and the shape of the organic EL light emitting element 12 is a rectangular parallelepiped.
In this embodiment, the anode 15 is made of indium tin oxide (ITO). For this reason, the anode 15 has a function of injecting holes into the organic layer 16 and has translucency for light emission from the organic layer 16. That is, the anode 15 functions as a transparent electrode.
The anode 15 is formed by a sputtering method, a vacuum deposition method, or the like. On the surface of the anode 15, it is preferable to form the organic layer 16 after ultraviolet irradiation or ozone treatment from the viewpoint of removing impurities on the anode 15 and improving hole injection properties by adjusting ionization potential.

  The anode 15 is not limited to being composed of indium tin oxide, and has a function of injecting holes into the organic layer 16 and is transmissive to light emitted from the organic layer 16. For example, metal oxides such as indium zinc oxide, metals such as aluminum, gold, silver, nickel, palladium and platinum, metal halides such as copper iodide, carbon black, poly (3-methyl (Thiophene), a conductive polymer such as polypyrrole, or the like. Moreover, the anode 15 may be comprised from a different material for every organic EL light emitting element 12R, 12G, 12B.

  Although not illustrated in FIG. 9, the organic EL light emitting device may further include a hole injection layer, a hole transport layer, an electron transport layer, and / or an electron injection layer. In that case, it is preferable to have a structure in which a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer are laminated in this order from the anode 15 side. In the case of such a laminated structure, the organic layer 16 may be composed of a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer, or may be composed of a part of these layers. May be. That is, the layers constituting the organic layer 16 differ depending on whether or not an organic material is used for the material of each layer.

  The hole injection layer and the hole transport layer are preferably formed of a hole transporting material, and include aromatic amine derivatives, phthalocyanine derivatives, porphyrin derivatives, oligothiophene derivatives, polythiophene derivatives, benzylphenyl derivatives, fluorene groups. A compound in which a tertiary amine is linked, a hydrazone derivative, a silazane derivative, a silanamine derivative, a phosphamine derivative, a quinacridone derivative, a polyaniline derivative, a polypyrrole derivative, a polyphenylene vinylene derivative, a polythienylene vinylene derivative, a polyquinoline derivative, a polyquinoxaline derivative, carbon, etc. Can be mentioned. The electron transport layer is preferably formed of an electron transport material, for example, a metal complex such as an aluminum complex of 8-hydroxyquinoline, a metal complex of 10-hydroxybenzo [h] quinoline, an oxadiazole derivative. , Distyryl biphenyl derivatives, silole derivatives, 3-hydroxyflavone metal complexes, 5-hydroxyflavone metal complexes, benzoxazole metal complexes, benzothiazole metal complexes, trisbenzimidazolylbenzene, quinoxaline compounds, phenanthroline derivatives, 2-t-butyl- 9,10-N, N′-dicyanoanthraquinone diimine, n-type hydrogenated amorphous silicon carbide, n-type zinc sulfide, n-type zinc selenide and the like can be mentioned. The electron injection layer is preferably made of a metal having a low work function. Examples include alkali metals such as sodium and cesium, and alkaline earth metals such as barium and calcium.

The following are mentioned as a luminescent material used for the said light emitting layer. Examples of the light-emitting material that gives red light emission include DCM (4- (dicyanmethylene) -2-methyl-6- (p-dimethylaminostyryl) -4H-pyran) -based compounds, benzopyran derivatives, rhodamine derivatives, benzothioxanthene derivatives, aza Examples include benzothioxanthene. Examples of the light emitting material that gives green light emission include quinacridone derivatives, coumarin derivatives, and aluminum complexes such as Al (C ₉ H ₆ NO) ₃ . Furthermore, examples of the light emitting material that gives blue light emission include naphthalene, perylene, pyrene, anthracene, coumarin, p-bis (2-phenylethenyl) benzene, and derivatives thereof. In addition, any one kind may be used for the luminescent material mentioned above, and two or more types may be used together by arbitrary combinations and ratios.

In the present embodiment, the cathode 17 does not need to have translucency, and thus is made of aluminum. That is, the cathode 17 is a metal electrode. The cathode 17 is formed by a sputtering method, a vacuum evaporation method, or the like. In addition, the cathode 17 is not limited to aluminum, For example, metals, such as tin, magnesium, indium, calcium, silver, those alloys, etc. are used. Specific examples include low work function alloy electrodes such as magnesium-silver alloys, magnesium-indium alloys, and aluminum-lithium alloys. Moreover, the cathode 17 may be comprised from a different material for every organic EL light emitting element 12R, 12B, 12G.

  As shown in FIGS. 8 and 9, the light diffusion portion 13 is formed to cover the entire surface of the organic EL light emitting element non-formation surface 11 b of the transparent substrate 11. The light diffusing unit 13 has an effect of diffusing the light of each color emitted from the organic EL light emitting element 12 to uniformly mix the colors. Due to such an effect, the member composed of the transparent substrate 11 that is a glass substrate and the light diffusion part 13 functions as a single light source as a whole. In this embodiment, the light diffusing portion 13 is composed of a film in which fine particles are dispersed in a transparent resin. In addition, the light-diffusion part 13 is not limited to this film, For example, it can form by roughening the substrate surface.

As described above, the transparent substrate 11 has a characteristic of transmitting the light of each color emitted from each organic EL light emitting element 12. For this reason, as shown in FIG. 9, the light emitted from each organic EL light emitting element 12 passes through the transparent substrate 11 and the light diffusing unit 13 and is emitted from the organic EL surface light emitting panel 2 to the outside.
As shown in FIGS. 8 and 9, the sealing unit 14 has a function of covering each organic EL light emitting element 12 and preventing the light emitting material of each organic EL light emitting element 12 from being oxidized and deteriorated by the atmosphere. Moreover, the sealing part 14 is formed so that the space | gap 18 is filled and the organic electroluminescent light emitting element formation surface 11a of the transparent substrate 11 is not exposed. In the present embodiment, the sealing portion 14 is an epoxy resin having translucency. In addition, the sealing part 14 may be other transparent resin provided with translucency, such as a silicone resin other than an epoxy resin.

Moreover, the sealing part 14 is not limited to being comprised from resin as mentioned above. For example, the sealing part 14 may be a translucent member such as plastic that covers the plurality of organic EL light emitting elements 12 as a whole. In such a case, the gap 18 is not filled with the sealing portion 14.
In this embodiment, the bottom emission type organic EL surface light emitting panel 3 is used, but a top emission type organic EL surface light emitting panel may be used. In this case, various opaque support substrates can be used in place of the transparent substrate 11 that supports the plurality of organic EL light emitting elements 12. The layer structure may be formed from the anode to the cathode in the opposite direction to the bottom emission type. Moreover, in the Example mentioned above, although the organic layer 16 from which luminescent color differs for every organic EL light emitting element 12 was used, the organic layer 16 of all the organic EL light emitting elements 12 is a luminescent material for red light, The light-emitting material for green light and the light-emitting material for blue light may be composed of a polymer-dispersed EL material in which the light-emitting material is uniformly dispersed. In addition, a stacked organic EL light emitting element in which a layer made of a light emitting material for red light, a layer made of a light emitting material for green light, and a layer made of a light emitting material for blue light may be used.

  The surface-emitting module according to the present invention can be applied to lighting applications such as indoor lighting, outdoor lighting, and vehicle lighting, or decoration applications. It can also be used for internally illuminated or externally illuminated signboards, display boards, etc., or by combining a surface light emitting module to display characters and figures.

DESCRIPTION OF SYMBOLS 1 Surface emitting module 2 Base 21 Base surface 22 Base back surface 23 Groove part 3, 31-39 Surface light emission panel 4 Power receiving side 5 Power receiving terminal 6 Wiring
7, 71-75 Through-hole 8 Connector 11 Transparent substrate 12, 12R, 12G, 12B Organic EL light emitting element 13 Light diffusion part 14 Sealing part 15, 15R, 15G, 15B Anode 16, 16R, 16G, 16B Organic layer 17, 17R, 17G, 17B Cathode 18 Air gap

Claims (6)

A surface emitting module in which a plurality of surface emitting panels are linearly arranged on the surface of a base,
The surface light emitting panel is rectangular and has a power receiving side with one side having a power receiving terminal, and the plurality of surface light emitting panels are arranged in such a direction that the power receiving side is perpendicular to the direction of the straight line, In the adjacent surface light emitting panel, there is at least one set of the surface light emitting panels arranged so that the power receiving sides face each other.   The surface emitting module according to claim 1, wherein a wiring for supplying electric power to the surface emitting panel is provided on a back surface of the base.   3. The wiring is connected to the power receiving terminal through a through hole provided in the base at a position corresponding to the power receiving terminal of the surface-emitting panel in the base. The surface emitting module according to 1.   The wiring is connected to the power receiving terminal through a connector provided on the base at a position corresponding to the power receiving terminal of the surface-emitting panel in the base. The surface emitting module as described.   5. The surface emitting module according to claim 2, wherein at least a part of the wiring is disposed in a groove provided on a back surface of the base. 5. The surface emitting module in which n pieces of the surface emitting panels are arranged, the number of the through holes or the connectors is represented by the following formula (1). Surface emitting module.
n / 2 (when n is an even number), (n + 1) / 2 (when n is an odd number) (1)