JP6116867B2 - Organic EL light emitting system - Google Patents

Description

The present invention relates to an organic EL light emitting system formed by spreading organic EL (Electro Luminescence) panels. The present invention is related to a power supply member constituting the organic EL light-emitting system.

  In recent years, organic EL panels have attracted attention as a lighting device that can replace incandescent lamps and fluorescent lamps, and many studies have been made.

Here, the organic EL panel is obtained by applying a sealing structure and a casing to an organic EL device. Further, the organic EL device is formed by laminating an organic EL element on a base material such as a glass substrate and forming a power feeding structure for feeding power to the organic EL element.
In addition, the organic EL element has two or more light-transmitting electrodes facing each other, and a light emitting layer made of an organic compound is laminated between the electrodes. The organic EL device emits light by the energy of recombination of electrically excited electrons and holes.
Specifically, the organic EL element has a structure in which a plurality of layers are laminated between the electrodes of the organic EL element, and a hole injection layer, a hole transport layer, a light emitting layer, and an electron transport layer are sequentially formed from one electrode side. The layered structure is composed of an electron injection layer. Holes reach the light emitting layer from one electrode via the hole injection layer and the hole transport layer, and electrons reach the light emitting layer from the other electrode via the electron injection layer and the electron transport layer. The holes and electrons recombine in the light emitting layer. That is, the organic EL element can emit light of various wavelengths by appropriately selecting the material of the light emitting layer, and can select a desired emission color.

An organic EL panel used in a lighting device is often used as a white light source. At this time, it is difficult to extract a white light source with only one light emitting layer. Conventionally, three light emitting layers of red (Red), blue (Blue), and green (Green), which are the three primary colors of light, are combined. And used as a white light source (for example, Patent Document 1).
In other words, an organic electroluminescent element (organic EL device) used for illumination has a structure in which a plurality of light emitting layers are stacked, and light and light are recombined by recombining electrons and holes in each light emitting layer. Add color and extract white light.

JP 2011-253722 A

By the way, when an organic EL panel is used for large-scale illumination, a single organic EL panel tends to generate a voltage distribution in its surface, and uneven light emission tends to occur. Therefore, a plurality of organic EL panels may be electrically connected to form one light emission plane.
Conventionally, it is known that a blue light emitting layer is easily deteriorated and has a short lifetime as compared with other color light emitting layers, and the substantial life of an organic EL panel is the life of a blue light emitting color. Often becomes. Therefore, when an organic EL panel is used for large-scale lighting, it does not function as lighting even though the lifetime of the light-emitting layer exhibiting other emission colors remains, so each time an organic EL panel that cannot emit light is replaced. There was a need to do.
In recent years, lighting devices are often required not only to simply switch on and off, but also to have a dimming function that adjusts the brightness of the emitted color. However, when the organic electroluminescent element (organic EL panel) of Patent Document 1 is used as a large-scale illumination and a dimming function is added, uneven light emission tends to occur. That is, there is a problem that the current values need to be adjusted with high accuracy and the cost is increased.

Therefore, the present inventor does not extract white light from each organic EL panel alone as in the prior art, but lays out a plurality of types of organic EL panels having different emission colors in a planar shape, so that one organic EL panel is provided. It was considered to take out a white emission color as a composite color by utilizing the overlap of the light emitted from each of the organic EL panels and the light emitted from each organic EL panel adjacent to the organic EL panel. In addition, by connecting the organic EL panels having the same luminescent color electrically in series, for example, only the organic EL panel having a blue luminescent color that has a short lifetime among a plurality of organic EL panels. It was possible to replace the organic EL panel, and it was thought that the lifetime of each organic EL panel could be maximized. Further, by adopting this structure, it was considered that a dimming function can be added by adjusting the current value between the organic EL panels connected in series.
However, in the case of this structure, an independent wiring structure is required for each type of organic EL panel, and the wiring structure becomes complicated. Therefore, a new problem has arisen that the possibility of erroneous wiring is increased.

Accordingly, an object of the present invention is to provide an organic EL light emitting system capable of preventing erroneous wiring. The present invention relates to providing an organic EL light emitting system capable of adding a dimming function at low cost . Further, in configuring the organic EL light emitting system, it relates to providing a power supply member capable of preventing erroneous wiring .

The invention described in claim 1 for solving the above-mentioned problem is an organic EL light emitting system having a plurality of organic EL panels and a power supply member that can be electrically connected to the outside, wherein the plurality of organic EL panels Is arranged with a planar spread by the power supply member , and on the substrate, at least a first electrode layer, a second electrode layer, and an organic light emitting layer sandwiched between the two electrode layers, the has, to thus plurality of organic EL panel contacting said feed member is electrically has a plurality of series-connected groups connected in series, planar plurality of organic EL arranged with a spread panel Ri overall emission enable der, said feeding member has a first rail, the first rail is a section mounting a plurality of organic EL panels, and, between the organic EL panel Built-in multiple power supply wiring to connect It is an organic EL light emitting system according to claim.
The invention according to claim 2 is an organic EL light emitting system having a plurality of organic EL panels and a power supply member that can be electrically connected to the outside, wherein the plurality of organic EL panels are formed by the power supply members, It is arranged with a planar spread, and has at least a first electrode layer, a second electrode layer, and an organic light emitting layer sandwiched between the two electrode layers on a substrate, The power supply member has a bridging conductive portion that electrically connects the specific organic EL panels in series with one or more other organic EL panels sandwiched between the two specific organic EL panels. The plurality of organic EL panels having a plurality of series connection groups in which a plurality of organic EL panels are electrically connected in series by the bridging conductive portion can emit light as a whole, and the plurality of organic EL panels arranged with a planar spread can be entirely emitted. The power supply member has the first crosspiece The first crosspieces is a section mounting a plurality of organic EL panel, and an organic EL light-emitting system, characterized in that a plurality internal power supply wiring for connecting the organic EL panel.
The above-described invention is an organic EL light emitting system having a plurality of organic EL panels and a power supply member that can be electrically connected to the outside, wherein the plurality of organic EL panels are arranged with a planar spread. And having at least a first electrode layer, a second electrode layer, and an organic light emitting layer sandwiched between the two electrode layers on the substrate, wherein the power supply member comprises two specific organic layers A bridge conductive portion that electrically connects the specific organic EL panels in series with one or more other organic EL panels sandwiched between the EL panels, and the plurality of organic ELs are connected by the bridge conductive portion. The present invention relates to an organic EL light emitting system that has a plurality of series connection groups in which the panels are electrically connected in series, and can emit light from a plurality of organic EL panels arranged in a planar shape as a whole.

  As used herein, “a state in which one or more organic EL panels are sandwiched” does not necessarily mean that the entire organic EL panel is sandwiched, and a part of each of the one or more organic EL panels is sandwiched. Just do it.

According to the configuration of the above-described invention, the plurality of organic EL panels are electrically connected in series by the bridging conductive portion. In other words, all of the organic EL panels constituting the series connection group have the same current and shine evenly. Therefore, it is possible to add a dimming function by changing the relative current amount between the series connection groups. In addition, for example, by configuring each series connection group with an organic EL panel that exhibits different emission colors, the emission colors can be mixed and appear as white light. Further, for example, by electrically connecting the respective series connection groups in parallel, each organic EL panel constituting each series connection group can be replaced, and the organic EL panel constituting each series connection group can be replaced. The lifetime can be extended to the maximum.
According to the configuration of the invention described above, since the organic EL panel is attached to one power supply member and the organic EL panels belonging to the series connection group are connected to each other, the number of parts is small and the wiring structure is not easily complicated. Therefore, miswiring is unlikely to occur.
The invention according to claim 3 is the organic EL light emitting system according to claim 1 or 2, wherein adjacent organic EL panels are connected to different power supply wirings.
According to a fourth aspect of the present invention, the power supply member has a plurality of first crosspieces and a second crosspiece that intersects the first crosspiece, and the first crosspiece includes a plurality of organic EL panels. A plurality of power supply wirings are built-in, and the second crosspieces physically connect between the first crosspieces adjacent to each other, and the adjacent first first The organic EL light emitting system according to any one of claims 1 to 3, further comprising a bypass wiring that electrically connects the feeder wirings of the crosspieces in series.
According to a fifth aspect of the present invention, the power supply member is electrically connected between the specific organic EL panels with one or more other organic EL panels sandwiched between the two specific organic EL panels. 5. The organic EL light emitting system according to claim 2, further comprising a bridging conductive part connected in series, wherein the power supply wiring constitutes a part of the bridging conductive part.

The invention according to claim 6 has two or more types of organic EL panels having different emission colors when turned on, and at least one of the series connection groups is composed of the same type of organic EL panels. 6. The organic EL light emitting system according to claim 1, wherein the organic EL light emitting system is a light emitting system.

  The “same kind of organic EL panel” as used herein refers to an organic EL panel that emits the same color when lit.

  According to the configuration of the present invention, at least one of the series connection groups includes the same type of organic EL panel. That is, it is possible to adjust the chromaticity of white light formed by light emission from the organic EL panel constituting the series connection group and other organic EL panels by adjusting the amount of current flowing through the series connection group. Therefore, it is possible to add an overall light control / color control function.

Invention described above, the kind of emission color different from the organic EL panel is lit, may I 2 or more 4 or fewer der.

According to the configuration of the present invention, the types of organic EL panels having different emission colors when lit are 2 or more and 4 or less. If there are more than four types of organic EL panels, the distance between the organic EL panels of the same color may be too large, and the user may not appear to emit white light.

In the above organic EL light emitting system, one of the two or more different types of organic EL panels is a blue light emitting panel having a light emission peak only at a wavelength of less than 550 nm, and at least one other type is a light emitting panel of 550 nm or more. it is not preferable only to the wavelength is red light emitting panel having a light emission peak.

In the above-described invention, both sides of the organic EL panel may emit light .

According to the structure of this invention, since both surfaces emit light, the light emission area is large.

In the above-described invention, the power supply member has a first crosspiece portion, and the first crosspiece portion is a part to which a plurality of organic EL panels are attached, and forms a part of the bridging conductive portion. the has multiple internal, adjacent organic EL panel is related to the organic EL light-emitting system that is connected to a different power supply wiring with one another.

According to the configuration of the present invention, the first crosspiece is a portion to which a plurality of organic EL panels are attached, and a plurality of power supply wirings constituting a part of the bridging conductive portion are built in. The EL panel is connected to different power supply wirings. In other words, the adjacent organic EL panels are physically connected by one first crosspiece, and each of the organic EL panels belonging to different series connection groups can be fed by a plurality of power supply wirings embedded in the first crosspiece. It has become. As described above, since the plurality of power supply wirings are fixed in the first crosspiece and are inseparably integrated, the wiring structure is not complicated, and erroneous wiring is less likely to occur. In addition, noise is hard to enter.

According to a fourth aspect of the present invention, the power supply member has a plurality of first crosspieces and a second crosspiece that intersects the first crosspiece, and the first crosspiece includes a plurality of organic EL panels. It is a part to be attached and includes a plurality of power supply wirings constituting a part of the bridging conductive portion, and the second crosspiece physically connects the first crosspieces adjacent to each other. there are, and Ru with a bypass wiring that electrically connected in series between the first crosspiece of the feed interconnection of the adjacent.

  According to the configuration of the present invention, the second crosspiece physically connects the first crosspieces adjacent to each other, and electrically connects the power supply wirings of the adjacent first crosspieces. A detour wiring connected in series is provided. That is, since the bypass wiring of the second rail portion is electrically connected between the power supply wirings built in the first rail portion, the bypass wiring is not in direct contact with the organic EL panel, and the organic EL light emitting system can be assembled. Easy.

According to the seventh aspect of the present invention, the power supply member includes a plurality of first crosspieces and a second crosspiece that intersects with the first crosspiece, and the organic EL panel supplies power so as to be flat-filled. The organic EL light-emitting system according to claim 1 , wherein the organic EL light-emitting system is laid on a member, and a contact portion between the organic EL panels is located on the first crosspiece or the second crosspiece. It is.
In the present invention, the organic EL panel is laid on a power supply member so as to be flat-filled, and a contact portion between the organic EL panels is located on the first crosspiece or the second crosspiece.

According to the structure of this invention, the said organic EL panel is laid on the electric power feeding member so that it may become plane filling. That is, since the organic EL panels are arranged with no gap, the light emitting area per unit area can be increased.
Moreover, since the contact site | part between organic EL panels is located on a 1st crosspiece or a 2nd crosspiece, the physical connection intensity | strength between organic EL panels is high.

In the invention according to claim 8 , the power supply member has a plurality of first crosspieces and a second crosspiece that intersects the first crosspiece, and the first crosspiece and the second crosspiece are in a lattice shape. and combined to form an opening of the organic EL panel shape similar to, organic EL light emitting according to any one of claims 1 to 6, characterized in that the organic EL panel in the opening are inserted System.
In the present invention, the first crosspiece part and the second crosspiece part are formed in a lattice shape to form an opening having a similar shape to the organic EL panel, and the organic EL panel is inserted into the opening. Yes.

  According to the configuration of the present invention, the first crosspiece and the second crosspiece are formed in a lattice shape to form an opening having a similar shape to the organic EL panel, and the organic EL panel is formed in the opening. It is inserted. That is, the first crosspiece and the second crosspiece function as a frame of each organic EL panel. Therefore, it is possible to improve the rigidity of each organic EL panel.

The above-described invention is a power supply member that can be electrically connected to the outside, and in the power supply member that contributes to each electrical connection between the plurality of organic EL panels, the plurality of organic EL panels are on a substrate, At least a first electrode layer, a second electrode layer, and an organic light emitting layer sandwiched between the two electrode layers, electrically connecting a plurality of organic EL panels in series, A power supply member that is formed and connects an organic EL panel that forms one series connection group among the plurality of series connection groups in a mixed state between organic EL panels that form another series connection group is connected with.

According to the configuration of the present invention, the organic EL panel is attached to one power supply member, and the organic EL panels belonging to the series connection group are respectively connected. Therefore, the number of parts is small and the wiring structure is not easily complicated. Therefore, miswiring is unlikely to occur.

  According to the organic EL light emitting system and the power supply member of the present invention, erroneous connection between organic EL panels is unlikely to occur.

1 is a perspective view of an organic EL light emitting system in a first embodiment of the present invention. It is a disassembled perspective view of the organic electroluminescent light emitting system of FIG. It is an AA cross-sectional perspective view of the first crosspiece in FIG. It is a disassembled perspective view of the 1st crosspiece part of FIG. FIGS. 3A and 3B are explanatory views of the power feeding member of FIG. 2, in which FIG. 2A is a perspective view of the power feeding member, and FIG. It is a partially broken perspective view of the electric power feeding member of FIG.5 (b). It is explanatory drawing of the organic EL apparatus incorporated in the organic EL panel of FIG. It is explanatory drawing of the connection structure of the organic electroluminescent panel of FIG. 1, (a) is an electrical circuit diagram in consideration of the actual positional relationship of the connection structure of an organic electroluminescent panel, (b) is simplified (a). FIG. It is explanatory drawing at the time of extending the organic EL light emission system of FIG. It is explanatory drawing of the connection structure of the organic EL panel of other embodiment, (a) is an electrical circuit diagram in consideration of the actual positional relationship of the connection structure of an organic EL panel, (b) is (a). It is the electric circuit diagram which simplified. It is explanatory drawing of the connection structure of the organic EL panel of other embodiment, (a) is an electrical circuit diagram in consideration of the actual positional relationship of the connection structure of an organic EL panel, (b) is (a). It is the electric circuit diagram which simplified. It is a cross-sectional perspective view of the organic electroluminescent light emission system of other embodiment.

Hereinafter, embodiments of the present invention will be described in detail.
In the following description, unless otherwise specified, the vertical positional relationship of the organic EL light emitting system 1 will be described with reference to the posture of FIG. That is, the light extraction side is on the top. Further, the drawings may be exaggerated as compared with actual sizes (length, width, thickness) as a whole for easy understanding.

As shown in FIG. 2, the organic EL light emitting system 1 according to the present embodiment is formed by laying an organic EL panel 2 so as to spread in a planar shape, and each organic EL panel 2 is connected by a power supply member 6.
Specifically, the organic EL light emitting system 1 is formed by arranging organic EL panels 2 side by side in a vertical and horizontal grid pattern as shown in FIG. 1, and the vertical direction (row direction C) or the horizontal direction (column direction R). The organic EL panels 2 adjacent to each other are connected by a seat-like power supply member 6.

  Further, the organic EL light emitting system 1 is connected by the power supply member 6 so that the organic EL panels 2 are filled in a plane. That is, in the organic EL light emitting system 1, the organic EL panels 2 are arranged without gaps, and all the organic EL panels 2 can emit light as a whole.

The organic EL panel 2 used in the organic EL light emitting system 1 uses a plurality of types of organic EL panels having different emission colors. The organic EL light emitting system 1 can superimpose the light emitted from the respective organic EL panels 2 to make it appear to the user that the organic EL light emitting system 1 emits white light. .
Moreover, the organic EL light emitting system 1 can emit light independently from the organic EL panel 2 corresponding to each color by electrically connecting the organic EL panels 2 that emit light of the same color in series. It also has dimming and toning functions by limiting the amount of current.

The type of the organic EL panel 2 to be used is appropriately selected depending on the color to be emitted, the light control / color control accuracy, the brightness, and the size of the organic EL panel 2, and is not particularly limited. It is preferable to use at least 4 types. When the type of the organic EL panel 2 is one, it becomes monochromatic light, and it is not possible to add a light control / color control function by overlapping light emission colors. If there are more than four types of organic EL panels 2, the distance between the organic EL panels 2 of the same color may be too large, and the user may not be able to see the white light emission.
In the present embodiment, four types of organic EL panels 2 having different emission colors are used, and in order to clearly distinguish each organic EL panel 2, in the following description, each of the emission colors of the same color is distinguished. 1 organic EL panel 10 (10a-10d), 2nd organic EL panel 11 (11a-11d), 3rd organic EL panel 12 (12a-12d), and 4th organic EL panel 13 (13a-13d).
The structure of these organic EL panels is the same except for the emission color of the organic EL device 5.

Hereinafter, the configuration of each component of the organic EL light emitting system 1 will be described.
The organic EL panel 2 has a built-in organic EL device 5 shown in FIG.
As shown in FIG. 7, the organic EL device 5 includes an organic EL element 41 (laminated body) in which a first electrode layer 43, a functional layer 45, and a second electrode layer 46 are laminated in this order on a substrate 42 (base material). It is equipped with. The first electrode layer 43 and the second electrode layer 46 are opposed to each other with the functional layer 45 interposed therebetween, and the functional layer 45 is energized by energizing between the first electrode layer 43 and the second electrode layer 46. Recombination of electrons and holes occurs and light is emitted. That is, a self-energization path is formed among the first electrode layer 43, the functional layer 45, and the second electrode layer 46.
The organic EL device 5 of the present embodiment is designed to exhibit a desired emission color by changing the constituent members of the functional layer 45, respectively. A detailed layer structure will be described later.

Further, the organic EL device 5 has a light emitting region 50 that actually emits light when turned on and a frame region 51 so as to surround the light emitting region 50 when the substrate 42 is viewed in plan as shown in FIG.
The light emitting region 50 is a rectangular region, and the light emitting surface of the organic EL panel 2 (the surface on the substrate 42 side, on which the user can actually see the light emission) is provided on the substrate 42 side of the organic EL device 5. Contains. The light emitting region 50 of the present embodiment is similar to the substrate 42 and is a square region.
The frame region 51 is a region surrounding the light emitting region 50 in a ring shape as shown in FIG. 7, and is a non-light emitting region that does not emit light when turned on. The frame region 51 includes a plurality of electrode portions 52 that function as electrical contacts with the outside.

  The electrode part 52 is electrically connected to the first electrode part 55 electrically connected to the first electrode layer 43 in the organic EL element 41 and the second electrode layer 46 in the organic EL element 41 as shown in FIG. The first electrode portion 55 and the second electrode portion 56 are in positions facing each other across the light emitting region 50.

  Turning to the power supply member 6, the power supply member 6 is a frame that can support or fix a plurality of organic EL panels 2, as shown in FIGS. Two crosspieces 8 are formed so as to intersect in a lattice pattern.

The first crosspiece 7 is a part to which a plurality of organic EL panels 2 are attached and a part that supplies power to each organic EL panel 2. Moreover, the 1st crosspiece 7 is a long plate shape or foil shape like FIG. 5, Comprising: It is a site | part extended in the vertical direction (row direction C). In the present embodiment, the first crosspiece 7 has a foil shape.
The first crosspiece 7 includes a plurality of power supply units 25 that supply power to each organic EL panel 2.
There are a plurality of types of power supply units 25, and a first power supply unit 26 that supplies power to the first organic EL panel 10, a second power supply unit 27 that supplies power to the second organic EL panel 11, and a power supply to the third organic EL panel 12. There are a third power supply unit 28 that supplies power and a fourth power supply unit 29 that supplies power to the fourth organic EL panel 13. The type of the power supply unit 25 is determined and positioned in accordance with the type of the organic EL panel 2 to be attached.

For example, paying attention to one first crosspiece 7 (7c) shown in FIG. 5 (a), the second organic EL panel 11 and the first crosspiece are on the first crosspiece 7c as shown in FIG. 5 (b). The second power feeding unit 27 and the first power feeding unit 26 are exposed on the surface of the first crosspiece 7 at the portion where the first organic EL panel 10 is placed, and the electrode unit 52 ( 7) and the second power feeding unit 27 are in contact with each other, and the electrode unit 52 (see FIG. 7) of the first organic EL panel 10 and the first power feeding unit 26 are in contact with each other.
Similarly, on the surface of the first crosspiece 7 on the surface of the first crosspiece 7 on the first crosspiece 7c where the fourth organic EL panel 13 and the third organic EL panel 12 are placed. The third power feeding part 28 is exposed, the electrode part 52 of the fourth organic EL panel 13 and the fourth power feeding part 29 are in contact, and the electrode part 52 of the third organic EL panel 12 and the third power feeding part 28 are in contact. It becomes.

  In the present embodiment, the first crosspiece 7 includes a portion where the first organic EL panel 10 and the second organic EL panel 11 are placed in the row direction C as shown in FIGS. Since the parts on which the panel 12 and the fourth organic EL panel 13 are placed are alternately arranged, the combination of the first power supply unit 26 and the second power supply unit 27, the third power supply unit 28, and the fourth power supply unit. The combinations of the portions 29 are also arranged in the row direction C alternately.

When attention is paid to the first crosspieces 7b and 7d adjacent to the first crosspiece 7c shown in FIG. 5A in the column direction R, the first power feeding section 26 and the first crosspieces on the first crosspieces 7b and 7d The positional relationship between the two power feeding units 27 and the positional relationship between the third power feeding unit 28 and the fourth power feeding unit 29 are reversed from those in the first crosspiece 7c.
That is, the part where the first organic EL panel 10 and the second organic EL panel 11 of the first crosspiece 7 are placed is the first in order from one side in the parallel direction R (row direction R) of the first crosspiece 7. The power feeding unit 26, the second power feeding unit 27, the second power feeding unit 27, the first power feeding unit 26,... Similarly, the portion where the third organic EL panel 12 and the fourth organic EL panel 13 of the first crosspiece 7 are placed is the first in order from the one side in the parallel direction R (row direction R) of the first crosspiece 7. This is an arrangement of three power feeding units 28, a fourth power feeding unit 29, a fourth power feeding unit 29, a third power feeding unit 28,.

As shown in FIG. 5, the second crosspiece 8 is a portion to which the vicinity of the edges of the plurality of organic EL panels 2 is attached, and includes detour wirings 76, 78, 80, 82 that bypass the predetermined organic EL panel 2. It is a part. The second crosspiece 8 is a long plate shape or a foil shape, and is a portion extending in a direction intersecting the first crosspiece 7. In the present embodiment, the second crosspiece 8 has a foil shape.
In the present embodiment, the first crosspiece 7 and the second crosspiece 8 are orthogonal to each other and are arranged in a vertical and horizontal grid pattern. That is, the second crosspiece 8 extends in the horizontal direction (row direction R).

Here, the positional relationship between the respective portions of the power feeding member 6 will be described. The intervals between the adjacent first crosspieces 7 are all equal, and the intervals between the adjacent second crosspieces 8 are also equal. Yes. Further, the interval between the first crosspieces 7 and the interval between the second crosspieces 8 are equal. That is, the intersections of the first crosspiece 7 and the second crosspiece 8 are distributed evenly in the vertical and horizontal directions.
In addition, the power supply member 6 forms an opening 37 having a shape similar to that of the organic EL panel 2 to be attached by the first crosspiece 7 and the second crosspiece 8. That is, the opening 37 has a quadrangular shape, and in the present embodiment, has a square shape.
As described above, the power supply member 6 includes a plurality of openings 37 having the same shape, and the openings 37 are arranged at regular intervals.

Further, the power supply member 6 is formed of a multilayer wiring board. Each layer structure forming the power supply member 6 will be described. The power supply member 6 includes a plurality of conductive members 20, 21, 22, and 23 as shown in FIG. The first insulating film 15, the first insulating base material 16, the first adhesive member 17, the second insulating base material 18, and the second insulating film 19 are sandwiched.
That is, as shown in FIGS. 3 and 4, the power supply member 6 includes the first insulating film 15, the fourth conductive member 23 (the bridging conductive portion), the first conductive film 23 in order from the opposite side (lower side) to the connection side with the organic EL panel 2. 1 insulating base material 16, first conductive member 20 (bridge conductive portion), first adhesive member 17, second conductive member 21 (bridge conductive portion), second insulating base material 18, third conductive member 22 (bridge conductive portion) ) And the second insulating film 19.

  The 1st insulating film 15 and the 2nd insulating film 19 are films with insulation, and are what is called a cover-lay film.

  The first insulating base material 16 and the second insulating base material 18 are plate-like or sheet-like members having insulation properties, and are members that serve as a skeleton of the power supply member 6.

The first adhesive member 17 is an adhesive having insulating properties, and is a member that bonds the first insulating base material 16 and the second insulating base material 18 together.
The first adhesive member 17 is obtained by solidifying a liquid or gel adhesive. The first adhesive member 17 may be a plate-like or sheet-like adhesive.

  The first conductive member 20 is a member having conductivity, and is a member that connects the first electrode portion 55 of a specific organic EL panel 2 and the second electrode portion 56 of another organic EL panel 2. That is, the first conductive member 20 is a member that electrically connects the specific organic EL panels 2 in series. Specifically, the first conductive member 20 is a member that electrically connects the first organic EL panels 10 in series.

As shown in FIGS. 5 and 6, the first conductive member 20 is formed of a plurality of first power supply portions 26 and first conductive wirings 31.
The first power feeding unit 26 is a so-called through hole, and is a part serving as a contact point with the first electrode unit 55 or the second electrode unit 56 of the first organic EL panel 10.
The first conductive wiring 31 is a linear or foil-shaped part, and is adjacent to one or more other organic EL panels 11, 12, 13 positioned between the adjacent first organic EL panels 10. This is a part for physically connecting the first organic EL panels 10.
In the present embodiment, the first conductive wiring 31 has a foil shape and bypasses the second organic EL panel 11 and physically connects the first organic EL panels 10 adjacent in the column direction R. .
That is, the first conductive wiring 31 is laid from the first crosspiece 7 to the adjacent first crosspiece 7 via the second crosspiece 8, and between the first power supply portions 26 adjacent to each other in the column direction R. It is physically connected. Specifically, the first conductive wiring 31 has a “U” shape in plan view as shown in FIG. 5A, and the first power supply wiring 75 (power supply wiring) built in the first crosspiece 7 is used. ) And a first bypass wiring 76 (a bypass wiring) that is built in the second crosspiece 8 and physically connects the first power supply wirings 75, 75.

  The second conductive member 21 is a member having conductivity, and is a member that connects the first electrode portion 55 of a specific organic EL panel 2 and the second electrode portion 56 of another organic EL panel 2. That is, the second conductive member 21 is a member that electrically connects the specific organic EL panels 2 in series. Specifically, the second conductive member 21 is a member that electrically connects the second organic EL panels 11 in series.

As shown in FIGS. 5 and 6, the second conductive member 21 is formed of a plurality of second power feeding portions 27 and second conductive wirings 32.
The second power feeding unit 27 is a so-called through hole, and is a part that becomes a contact point with the first electrode unit 55 or the second electrode unit 56 of the second organic EL panel 11.
The second conductive wiring 32 is a linear or foil-like part, and bypasses one or a plurality of other organic EL panels 10, 12, 13 located between the adjacent second organic EL panels 11, and physically It is a site | part which connects between the 2nd organic EL panels 11 adjacent to.
In the present embodiment, the second conductive wiring 32 has a foil shape, and bypasses the first organic EL panel 10 and physically connects the second organic EL panels 11 adjacent in the column direction R. .
The second conductive wiring 32 is laid from the first crosspiece 7 to the adjacent first crosspiece 7 via the second crosspiece 8, and is physically connected between the second power feeding portions 27 adjacent in the column direction R. Connected to. That is, the second conductive wiring 32 has a “U” shape in plan view as shown in FIG. 5, and the second power supply wiring 77 (power supply wiring) incorporated in the first crosspiece 7 and the second crosspiece. It is formed from a second bypass wiring 78 (a bypass wiring) that is built in the portion 8 and physically connects the second power supply wirings 77, 77.

  The third conductive member 22 is a member having conductivity, and is a member that connects the first electrode portion 55 of a specific organic EL panel 2 and the second electrode portion 56 of another organic EL panel 2. That is, the third conductive member 22 is a member that electrically connects the specific organic EL panels 2 in series. Specifically, the third conductive member 22 is a member that electrically connects the third organic EL panels 12 in series.

As shown in FIG. 5, the third conductive member 22 is formed of a plurality of third power feeding portions 28 and a third conductive wiring 33.
The third power feeding unit 28 is a so-called through hole, and is a part that becomes a contact point with the first electrode unit 55 or the second electrode unit 56 of the third organic EL panel 12.
The third conductive wiring 33 is a linear or foil-like part, bypassing one or a plurality of other organic EL panels 10, 11, 13 located between the adjacent third organic EL panels 12, and physically It is a site | part which connects between the 3rd organic EL panels 12 adjacent to.
In the present embodiment, the third conductive wiring 33 bypasses the fourth organic EL panel 13 and physically connects the third organic EL panels 12 adjacent in the column direction R.
The third conductive wiring 33 is laid from the first crosspiece 7 to the adjacent first crosspiece 7 via the second crosspiece 8, and is physically connected between the third power supply portions 28 adjacent to each other in the column direction R. Connected to. That is, the third conductive wiring 33 has a “U” shape in plan view as shown in FIG. 5, and the third power supply wiring 79 (power supply wiring) built in the first crosspiece 7 and the second crosspiece are provided. It is formed from a third bypass wiring 80 (a bypass wiring) that is built in the portion 8 and physically connects the third power supply wirings 79, 79.

  The fourth conductive member 23 is a member having conductivity, and is a member that connects the first electrode portion 55 of a specific organic EL panel 2 and the second electrode portion 56 of another organic EL panel 2. That is, the fourth conductive member 23 is a member that electrically connects the specific organic EL panels 2 in series. Specifically, the fourth conductive member 23 is a member that electrically connects the fourth organic EL panels 13 in series.

The fourth conductive member 23 is formed of a plurality of fourth power feeding portions 29 and a fourth conductive wiring 34.
The fourth power feeding unit 29 is a so-called through hole, and is a part serving as a contact point with the first electrode unit 55 or the second electrode unit 56 of the fourth organic EL panel 13.
The fourth conductive member 23 is a linear or foil-like part, bypassing one or a plurality of other organic EL panels 10, 11, 12 located between the adjacent fourth organic EL panels 13, and physically It is a site | part which connects between the 4th organic EL panels 13 adjacent to.
In the present embodiment, the fourth conductive member 23 has a foil shape, and bypasses the third organic EL panel 12 and physically connects the fourth organic EL panels 13 adjacent in the column direction R. .
The fourth conductive wiring 34 is laid from the first crosspiece 7 to the adjacent first crosspiece 7 via the second crosspiece 8, and physically connects between the fourth feeding portions 29 adjacent in the column direction R. Connected to. That is, the fourth conductive wiring 34 has a “U” shape when seen in a plan view as shown in FIG. 5, and the fourth power supply wiring 81 (power supply wiring) incorporated in the first crosspiece 7 and the second crosspiece. It is formed from a fourth bypass wiring 82 (detour wiring) that is built in the section 8 and physically connects the fourth power supply wirings 81, 81.

The cross-sectional area of each conductive wiring 31, 32, 33, 34 is preferably 175 μm ² or more. If it is less than 175 μm ^2, the current density through which the conductive wirings 31, 32, 33, and 34 pass becomes too large, and there is a risk of disconnection.

Next, the positional relationship between the organic EL panel 2 and the power supply member 6 in the organic EL light emitting system 1 will be described.
In the organic EL light emitting system 1, the organic EL panel 2 is placed on the power supply member 6 as shown in FIG. Specifically, the light emitting region 50 (see FIG. 7) of the organic EL panel 2 corresponding to the projection surface in the overlapping direction (vertical direction) of the opening 37 of the power supply member 6 is located. In other words, the frame region 51 (see FIG. 7) of the organic EL panel 2 corresponding to the first crosspiece 7 and the second crosspiece 8 of the power supply member 6 is located.

In addition, one electrode portion of the first electrode portion 55 or the second electrode portion 56 of the organic EL panel 2 is in contact with the power feeding portion 25 of the specific first crosspiece portion 7, and the first crosspiece portion 7 The other electrode portion of the organic EL panel 2 is in contact with the power feeding portion 25 of the first crosspiece portion 7 next to the first crosspiece portion 7.
That is, the power supply unit 25 of the specific first crosspiece 7 and the power supply unit 25 of the adjacent first crosspiece 7 are electrically connected in series with the organic EL panel 2 sandwiched therebetween. In the organic EL panel 2, a conductive path is formed that conducts electricity between the power supply unit 25 of the specific first crosspiece 7 and the power supply unit 25 of the adjacent first crosspiece 7. In short, current flows through the conductive path of the organic EL panel 2 and electricity flows between the same type of conductive members.

  Then, the relationship between each organic EL panel 2 in the organic EL light emission system 1 is demonstrated.

  In the organic EL light emitting system 1, the organic EL panels 2 are connected by the power feeding member 6 as described above, and all the organic EL panels 2 can emit light as a whole. Specifically, the organic EL light emitting system 1 forms one unit (hereinafter referred to as an organic EL panel group 60) by four types of organic EL panels 10, 11, 12, and 13 as shown in FIG. The organic EL panel group 60 is distributed with a spread on the surface.

And in the organic electroluminescent light emission system 1 of this embodiment, the organic electroluminescent panel 2 is arranged in 4 rows 4 columns like FIG.
In the horizontal direction (column direction R), the first row is alternately arranged in the order of the first organic EL panel 10a, the second organic EL panel 11a, the first organic EL panel 10b, and the second organic EL panel 11b. Yes.
In the second row, the third organic EL panel 12a, the fourth organic EL panel 13a, the third organic EL panel 12b, and the fourth organic EL panel 13b are alternately arranged in this order.
In the third row, the second organic EL panel 11c, the first organic EL panel 10c, the second organic EL panel 11d, and the first organic EL panel 10d are alternately arranged in this order.
In the fourth row, the fourth organic EL panel 13c, the third organic EL panel 12c, the fourth organic EL panel 13d, and the third organic EL panel 12d are alternately arranged in this order.
As described above, the organic EL light emitting system 1 has two types of organic EL panels 10 and 11 or organic EL panels 12 and 13 alternately arranged in any row. At least one kind of different organic EL panels 2 are sandwiched between organic EL panels of the same color. For example, the organic EL panels 10a and 10b having the same color are arranged in parallel with at least one different organic EL panel 11a interposed between the organic EL panels 10a and 10b.

In the vertical direction (row direction C), the first organic EL panel 10a, the third organic EL panel 12a, the second organic EL panel 11c, and the fourth organic EL panel 13c are arranged in this order in the first column.
In the second row, the second organic EL panel 11a, the fourth organic EL panel 13a, the first organic EL panel 10c, and the third organic EL panel 12c are arranged in this order.
In the third row, the first organic EL panel 10b, the third organic EL panel 12b, the second organic EL panel 11d, and the fourth organic EL panel 13d are arranged in this order.
In the fourth row, the second organic EL panel 11b, the fourth organic EL panel 13b, the first organic EL panel 10d, and the third organic EL panel 12d are arranged in this order.
Thus, in the organic EL light emitting system 1, in the row direction C, all types of organic EL panels among the four types of organic EL panels are arranged in the same column. That is, in any organic EL panel, the type of the organic EL panel adjacent to itself is different and is different from its own emission color. Moreover, the distance of the organic EL panel of the same kind nearest to self is equidistant.

In the organic EL light emitting system 1 of the present embodiment, two organic EL panel groups 60 are arranged in the column direction, and the organic EL panel group 60 belonging to the third column and the fourth column is arranged in the first column and the second column. The organic EL panels arranged in the row direction of the organic EL panel group 60 belonging to the above are replaced with each other.
From another viewpoint, the organic EL panel group 60 belonging to the third row and the fourth row slides the organic EL panel group 60 belonging to the first row and the second row by one organic EL panel in the row direction. It can be said that it is in the position.

Focusing on the connection relationship of the four organic EL panels arranged in the first row, that is, the first organic EL panel 10a, the second organic EL panel 11a, the first organic EL panel 10b, and the second organic EL panel 11b, The second electrode portion 56 of the organic EL panel 10a and the first electrode portion 55 of the first organic EL panel 10b adjacent to each other with the second organic EL panel 11a interposed therebetween are connected by the first conductive member 20, so that the second organic The second electrode part 56 of the EL panel 11a and the first electrode part 55 of the second organic EL panel 11b adjacent to each other across the first organic EL panel 10b are connected by the second conductive member 21.
That is, a conductive path that is electrically insulated from the second organic EL panel 11a is formed between the first organic EL panel 10a and the first organic EL panel 10b, and is electrically connected to each other in series. Yes. Similarly, a conductive path that is electrically insulated from the first organic EL panel 10b is formed between the second organic EL panel 11a and the second organic EL panel 11b, and is electrically connected in series with each other. Yes.

When attention is paid to the connection relationship of the four organic EL panels 2 of the third organic EL panel 12a, the fourth organic EL panel 13a, the third organic EL panel 12b, and the fourth organic EL panel 13b arranged in the second row, The second electrode portion 56 of the third organic EL panel 12a and the first electrode portion 55 of the third organic EL panel 12b adjacent to each other across the fourth organic EL panel 13a are connected by the third conductive member 22, and the fourth The second electrode portion 56 of the organic EL panel 13a and the first electrode portion 55 of the fourth organic EL panel 13b adjacent to each other across the third organic EL panel 12b are connected by the fourth conductive member 23.
That is, a conductive path that is electrically insulated from the fourth organic EL panel 13a is formed between the third organic EL panel 12a and the third organic EL panel 12b, and is electrically connected in series with each other. Yes. Similarly, a conductive path electrically isolated from the third organic EL panel 12b is formed between the fourth organic EL panel 13a and the fourth organic EL panel 13b, and is electrically connected in series with each other. Yes.

  The connection relationship in the third row is the same except that the positional relationship between the first organic EL panel 10 and the second organic EL panel 11 in the first row is reversed, and the connection relationship in the fourth row is Since it is the same except that the positional relationship between the third organic EL panel 12 and the fourth organic EL panel 13 in the two rows is reversed, the description thereof is omitted.

  As described above, the organic EL light emitting system 1 includes a plurality of series connection groups 70, 71, 72, 73 electrically connected in series between the same type of organic EL panels 2 arranged in the column direction R. Yes.

When attention is paid to the electrical connection relationship between the organic EL panels 2 when an external power source is connected to the organic EL light emitting system 1, the first organic EL panel 10a and the first organic EL panel 10b are electrically connected as described above. The first organic EL panel 10c and the first organic EL panel 10d are electrically connected in series to form the series connection group 70 (70b). ing. As shown in FIGS. 8A and 8B, the series connection group 70a and the series connection group 70b are in an electrically parallel relationship.
8A is an electric circuit diagram in consideration of an actual positional relationship of the organic EL light emitting system 1, and FIG. 8B is an electric circuit diagram obtained by simplifying FIG. 8A.

  The second organic EL panel 11a and the second organic EL panel 11b are electrically connected in series to form a series connection group 71 (71a). The second organic EL panel 11c and the second organic EL panel 11d are electrically connected. Thus, they are connected in series to form a series connection group 71 (71b). As shown in FIGS. 8A and 8B, the series connection group 71a and the series connection group 71b are in an electrically parallel relationship.

  The third organic EL panel 12a and the third organic EL panel 12b are electrically connected in series to form a series connection group 72 (72a). The third organic EL panel 12c and the third organic EL panel 12d are electrically connected. Thus, they are connected in series to form a series connection group 72 (72b). As shown in FIGS. 8A and 8B, the series connection group 72a and the series connection group 72b are in an electrically parallel relationship.

  The fourth organic EL panel 13a and the fourth organic EL panel 13b are electrically connected in series to form a series connection group 73 (73a). The fourth organic EL panel 13c and the fourth organic EL panel 13d are electrically connected. Are connected in series to form a series connection group 73 (73b). As shown in FIGS. 8A and 8B, the series connection group 73a and the series connection group 73b are in an electrically parallel relationship.

  The series connection group 70a and the series connection group 70b are electrically in parallel with the series connection group 71a and the series connection group 71b, the series connection group 72a and the series connection group 72b, and the series connection group 73a and the series connection group 73b. ing.

  The series connection group 70a and the series connection group 70b form an external power source and a closed circuit, respectively. Similarly, the series connection group 71a and the series connection group 71b, the series connection group 72a and the series connection group 72b, and the series connection group 73a and the series connection group 73b form an external power source and a closed circuit, respectively.

  As described above, in the organic EL light emitting system 1, each series connection group 70, 71, 72, 73 forms a closed circuit with an external power source, and each organic connection is performed by PWM control using a variable resistor or a microcomputer. Dimming can be performed by controlling the amount of current to the EL panel.

  In the case of controlling the amount of current to each organic EL panel using a variable resistor, each series connection group 70a, 70b, 71a, 71b, 72a, 72b, 73a, 73b is used from the viewpoint of accurate control. It is preferable to attach a variable resistance to.

  Further, according to the organic EL light emitting system 1 of the present embodiment, since the series connection groups 70, 71, 72, 73 are electrically connected to each other, for example, each first organic EL panel 10 is deteriorated. Even if the light emission becomes impossible, the first organic EL panel 10 is returned to the light emission enabled state by replacing only the short-circuited organic EL device 5 with the new organic EL device 5 while being connected by the power supply member 6. It is possible. That is, the first organic EL panels 10a, 10b, 10c, 10d, the second organic EL panels 11a, 11b, 11c, 11d, the third organic EL panels 12a, 12b, 12c, 12d, and the fourth organic EL panel 13a. , 13b, 13c, and 13d, the lifetime of each organic EL device 5 can be maximized.

  Further, according to the organic EL light emitting system 1 of the present embodiment, the current flowing through the organic EL panels constituting the series connection groups 70, 71, 72, 73 can be controlled, and the series connection groups 70, 71, 72, Since the organic EL panel constituting 73 is distributed evenly throughout, it is possible to emit light uniformly without color unevenness.

  According to the organic EL light emitting system 1 of the present embodiment, since the power supply member 6 is formed by combining the foil-like first crosspiece 7 and the second crosspiece 8, the organic EL panel is thin. Almost no damage.

  Next, the layer configuration of the organic EL device 5 will be described.

The material of the board | substrate 42 will not be specifically limited if it has transparency and insulation. In this embodiment, a glass substrate is employed.
Further, the substrate 42 has a planar shape. Specifically, it is polygonal or circular, and is preferably square. In this embodiment, a square glass substrate is employed.

  The first electrode layer 43 is a layer formed of a transparent conductive oxide, and for example, indium tin oxide (ITO) can be employed.

The functional layer 45 is provided between the first electrode layer 43 and the second electrode layer 46 as shown in FIG. 7 and is a layer including at least one organic light emitting layer.
Specifically, as shown in FIG. 7, the functional layer 45 has a structure in which, from the first electrode layer 43 side, a hole injection layer 61, a hole transport layer 62, an organic light emitting layer 63, an electron transport layer 64, and An electron injection layer 65 is provided. The hole injection layer 61, the hole transport layer 62, the organic light emitting layer 63, the electron transport layer 64, and the electron injection layer 65 are all formed of a known organic material or the like.

  As described above, in the present embodiment, the light emission color of the organic EL device 5 is controlled according to the type of the organic light emitting layer 63, and the light emission color is different among the organic EL panels 10, 11, 12, and 13. ing.

Specifically, the first organic EL panel 10 is designed to be an organic EL panel having a blue emission color having an emission peak only at a wavelength of less than 550 nm, depending on the type of the organic light emitting layer 63. The second organic EL panel 11 is designed to be an organic EL panel having a red emission color having an emission peak only at a wavelength of 550 nm or more depending on the type of the organic light emitting layer 63.
In the present embodiment, since the organic EL panel of four colors is used, the first organic EL panel 10 has a blue light emission peak only at a wavelength of 400 nm or more and less than 500 nm depending on the type of the organic light emitting layer 63. The organic EL panel is designed to have an emission color, and the second organic EL panel 11 has a red emission color having an emission peak only at a wavelength of 620 nm to 700 nm depending on the type of the organic emission layer 63. It is designed to be an organic EL panel.

The third organic EL panel 12 is designed to be an organic EL panel having a green emission color having an emission peak only at a wavelength of 495 nm or more and less than 570 nm, depending on the type of the organic light emitting layer 63. The 4 organic EL panel 13 is designed to be an organic EL panel having an orange emission color having an emission peak only at a wavelength of 570 nm or more and less than 620 nm depending on the type of the organic light emitting layer 63.
Light-emitting area of the organic EL device 5 is a 4m ² from 4 mm ^2, preferably from 50 cm ² is 2m ^2, and particularly preferably from 100 cm ² is 2500 cm ^2.

  The second electrode layer 46 is not particularly limited as long as it forms an electrode with the first electrode layer 43 as a pair. For example, silver (Ag), aluminum (Al), or the like can be adopted.

In the above-described embodiment, the organic EL light emitting system 1 in which the organic EL panel 10 of 4 rows and 4 columns is arranged has been described. However, when the organic EL light emitting system 1 is actually used as illumination, it is adapted to the use environment. Therefore, the organic EL light emitting system 1 is extended and used. Therefore, as a representative example, the positional relationship of each organic EL panel 10 will be described for the case where the four organic EL light emitting systems 1 are expanded as shown in FIG.
In the illumination expanded so that the organic EL light emitting system 1 is distributed on a plane, different types of organic EL panels 11, 12, and 13 are provided between the organic EL panels 10 and 10 of the same color as shown in FIG. It is a relationship between them. Specifically, the organic EL panels 11, 12, and 13 of the remaining colors are sandwiched one by one between the organic EL panels 10 and 10 of the same color.
Further, the interval between the same type of organic EL panels adjacent in the row direction is equal to the interval between adjacent columns of the same type of organic EL panel adjacent in the row direction. For example, the distance between the first organic EL panels 10a and 10a adjacent in the row direction is equal to the distance between the first organic EL panels 10b and 10b in the adjacent column.

In the above-described embodiment, the case where four types of organic EL panels 2 are used has been described. However, there is no particular limitation as long as the plurality of types of organic EL panels 2 are used.
For example, in the case of two types, as shown in FIG. 10, the first organic EL panel 10 and the second organic EL panel 11 having different emission colors are alternately arranged in the row direction and the column direction. That is, the first organic EL panels 10 and the second organic EL panels 11 having different emission colors are arranged in a staggered manner.
The series connection group 70a composed of the first organic EL panels 10a and 10b includes a series connection group 70b composed of the first organic EL panels 10c and 10d, a series connection group 70c composed of the first organic EL panels 10e and 10f, and This is in an electrically parallel relationship with the series connection group 70d including the first organic EL panels 10g and 10h. The series connection group 71a composed of the second organic EL panels 11a and 11b includes a series connection group 71b composed of the second organic EL panels 11c and 11d, a series connection group 71c composed of the second organic EL panels 11e and 11f, and a second This is in an electrically parallel relationship with a series connection group 71d composed of the organic EL panels 11g and 11h.

  In the above-described embodiment, the organic EL panels 2 of the same color arranged in the row direction (for example, the first organic EL panels 10a and 10b) are electrically connected in series, and the same color of the same color arranged in the row direction. The organic EL panel 2 is in an electrically parallel relationship with the organic EL panels of the same color arranged in the column direction and in the row direction (for example, the first organic EL panels 10c and 10d). It is not limited, and all the organic EL panels of the same color may be electrically connected in series as shown in FIG.

  In the above-described embodiment, the power supply member 6 is formed by combining the foil-like first crosspiece 7 and the second crosspiece 8. However, the present invention is not limited to this, and the plate-like first The first crosspiece 7 and the second crosspiece 8 may be used. In this case, the rigidity of the organic EL panel can be reinforced.

  In the above-described embodiment, the organic EL device emits light on one side, but the present invention is not limited to this, and the organic EL device can be obtained by a method such as stacking single-sided organic EL devices. Both sides may emit light.

  In the above-described embodiment, the organic EL panel 2 is placed on the power supply member 6. However, the present invention is not limited to this, and an organic material is formed in the opening 37 of the power supply member 6 as shown in FIG. The EL panel 2 may be fitted to supply power. In this case, the position of the power feeding unit 25 is preferably provided inside the opening. Moreover, you may connect the electric power feeding part 25 of the electric power feeding member 6, and the electrode parts 55 and 56 of the organic electroluminescent panel 2 with another electrically-conductive member.

DESCRIPTION OF SYMBOLS 1 Organic EL light emission system 2 Organic EL panel 6 Power supply member 7 1st crosspiece 8 Second crosspiece 10, 10a-10h 1st organic EL panel 11, 11a-11h 2nd organic EL panel 12, 12a-12h 3rd organic EL panel 13, 13a-13h 4th organic EL panel 20 1st electroconductive member (bridge electroconductive part)
21 Second conductive member (Bridge conductive part)
22 3rd conductive member (Bridge conductive part)
23 4th conductive member (Bridge conductive part)
41 Organic EL element 42 Substrate (base material)
43 first electrode layer 45 functional layer 46 second electrode layer 50 light emitting region 51 frame region 55 first power feeding unit 56 second power feeding unit 63 light emitting layer (organic light emitting layer)
70, 71, 72, 73 Series connection group 75 First power supply wiring (power supply wiring)
76 First detour wiring (detour wiring)
77 Second power supply wiring (power supply wiring)
78 Second detour wiring (detour wiring)
79 Third power supply wiring (power supply wiring)
80 Third detour wiring (detour wiring)
81 Fourth power supply wiring (power supply wiring)
82 4th detour wiring (detour wiring)

Claims (8)

An organic EL light emitting system having a plurality of organic EL panels and a power supply member that can be electrically connected to the outside,
The plurality of organic EL panels are arranged in a planar shape by the power supply member, and are sandwiched between at least the first electrode layer, the second electrode layer, and the two electrode layers on a base material. An organic light emitting layer,
The result plurality of organic EL panel contacting said feed member is electrically has a plurality of series-connected groups connected in series,
Ri overall emission enable der a plurality of organic EL panel disposed with a planar expanse,
The power supply member has a first crosspiece,
The first crosspiece is a portion to which a plurality of organic EL panels are attached, and includes a plurality of power supply wirings for connecting the organic EL panels . An organic EL light emitting system having a plurality of organic EL panels and a power supply member that can be electrically connected to the outside,
The plurality of organic EL panels are arranged in a planar shape by the power supply member, and are sandwiched between at least the first electrode layer, the second electrode layer, and the two electrode layers on a base material. An organic light emitting layer,
The power supply member includes a bridging conductive portion that electrically connects the specific organic EL panels in series with one or more other organic EL panels sandwiched between the two specific organic EL panels. ,
A plurality of series connection groups in which a plurality of organic EL panels are electrically connected in series by the bridging conductive portion,
Ri overall emission enable der a plurality of organic EL panel disposed with a planar expanse,
The power supply member has a first crosspiece,
The first crosspiece is a portion to which a plurality of organic EL panels are attached, and includes a plurality of power supply wirings for connecting the organic EL panels . The organic EL light emitting system according to claim 1, wherein adjacent organic EL panels are connected to different power supply wirings. The power supply member has a plurality of first crosspieces and a second crosspiece that intersects the first crosspiece.
It said first rail is a section for mounting a plurality of organic EL panel, One or has multiple internal paper collecting wires,
The second crosspiece physically connects the first crosspieces adjacent to each other, and includes a bypass wiring that electrically connects the power supply wirings of the adjacent first crosspieces in series. The organic EL light emitting system according to any one of claims 1 to 3 . The power supply member includes a bridging conductive portion that electrically connects the specific organic EL panels in series with one or more other organic EL panels sandwiched between the two specific organic EL panels. ,
The organic EL light emitting system according to claim 1, wherein the power supply wiring constitutes a part of the bridging conductive portion. It has two or more types of organic EL panels that emit different colors when lit.
Among the series connection group and at least one serial connection groups, an organic EL light emitting system according to any one of claims 1 to 5, characterized in that it is composed of the same kinds of organic EL panel. The power supply member has a plurality of first crosspieces and a second crosspiece that intersects the first crosspiece.
The organic EL panel is laid on a power supply member so as to be flat-filled,
Contact site between the organic EL panel, an organic EL light emitting system according to any one of claims 1 to 6, characterized in that located on the first rail or the second rail. The power supply member has a plurality of first crosspieces and a second crosspiece that intersects the first crosspiece.
The first crosspiece and the second crosspiece are combined in a lattice shape to form an opening similar to the organic EL panel,
The organic EL light emitting system according to any one of claims 1 to 6, characterized in that the organic EL panel is fitted in the openings.

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