JP6073156B2 - Organic EL device - Google Patents

Description

  The present invention relates to an organic EL (Electro Luminescence) device. In particular, the present invention relates to an organic EL device capable of displaying a desired shape such as a figure.

  In recent years, organic EL devices 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 device is obtained by laminating an organic EL element on a base material such as a glass substrate.
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.
The organic EL device is a self-luminous device and can emit light of various wavelengths by appropriately selecting the material of the light emitting layer. Further, since the thickness is extremely thin compared to incandescent lamps and fluorescent lamps, and the light is emitted in a planar shape, there are few restrictions on the installation location.

  By the way, recent lighting apparatuses are required not only to function as mere direct lighting but also to have additional functions such as improving the design of space. For example, there is a demand for a lighting device having a decoration function or the like according to the user's hobby.

Therefore, Patent Document 1 discloses a method for forming a display pattern of an organic EL element capable of displaying a desired figure at the time of lighting as a method for improving the decorativeness.
In this organic EL element display pattern forming method, a high temperature mask is brought into contact with a part of the light emitting portion of the organic EL element, and the light emitting function of the organic EL film (light emitting layer) is deactivated by the heat of the mask. . When the organic EL element formed by this method is driven, the deactivated portion is not lit, so that light and shade are generated between the light emitting portion and a desired figure can be displayed.

JP 2001-291586 A

However, in the forming method of Patent Document 1, since the high-temperature mask is brought into direct contact, the entire part where heat is transmitted is deactivated, and the boundary between the deactivated part and the light emitting part is blurred. Further, when the light emitting site is deactivated, a part of the organic matter in the light emitting layer is sublimated in the deactivated site, and the distance between the electrodes approaches. Therefore, in the vicinity of the boundary between the light emitting part and the deactivated part, it may become a cause of a short circuit in the light emitting part at the time of lighting. In addition, in the light emitting part near the boundary between the light emitting part and the deactivated part, the light emitting layer is denatured by the heat of the mask, which causes early deterioration.
As described above, the organic EL element display pattern forming method described in Patent Document 1 cannot clearly display a figure, and has a possibility that the lifetime is significantly reduced as compared with the conventional organic EL element.

  Therefore, the present invention provides an organic EL device that can be decorated by displaying a shape such as a figure and can clearly display the shape such as a figure.

Invention of Claim 1 for solving said subject is a cross-sectional structure which has a laminated body provided with the 1st electrode layer, the organic light emitting layer, and the 2nd electrode layer in order on the main surface of a base material. An organic EL device having a shape display region that displays a predetermined shape when driven and a light emitting region that emits light when driven, when the substrate is viewed in plan, and the light emitting region is the shape display region The insulating groove is formed so as to be continuous and surround the shape display region and from which at least one of the first electrode layer and the second electrode layer is removed. Formed at the boundary between the region and the light emitting region, is continuous over the entire circumference of the light emitting region, and the insulating groove is formed by removing at least the first electrode layer, the organic light emitting layer, and the second electrode layer, The laminate is covered with a sealing layer, and one of the sealing layers is covered. Is filled in the insulating groove, and the sealing layer includes a laminated structure in which the first sealing layer and the second sealing layer are stacked from the base material side, and the insulating groove further includes the first sealing. The organic EL device is characterized in that the layer is removed and a part of the second sealing layer is filled in the insulating groove .
That is, the present invention includes a cross-sectional structure having a laminate including a first electrode layer, an organic light emitting layer, and a second electrode layer in order on a substrate, and is driven when the substrate is viewed in plan. In an organic EL device having a shape display region that sometimes displays a predetermined shape and a light emitting region that emits light during driving, the light emitting region is formed to be continuous with the shape display region and to surround the shape display region. And having an insulating groove from which at least one of the first electrode layer and the second electrode layer is removed, and the insulating groove is formed at a boundary between the shape display region and the light emitting region. It is continuous over the entire circumference.

  According to the structure of this invention, it has the insulation groove | channel from which at least 1 layer was removed among the 1st electrode layer and the 2nd electrode layer, and is continuing over the perimeter of a light emission area | region. That is, the light emitting region is surrounded by the insulating groove, and the first electrode layer or the second electrode layer in the light emitting region and the first electrode layer or the second electrode layer in the shape display region are electrically insulated. Therefore, no voltage is applied to the organic light emitting layer in the shape display region. For this reason, the shape display area is not lit during driving and is lit in the light emitting area, so that there is a clear shading between the light emitting area and the shape display area, and the outline of a figure or the like appears clearly. Therefore, a highly decorative organic EL device can be realized.

The removal of the insulating groove is preferably performed by laser scribing that is simple and has a short tact time.
As the groove width of the insulating groove formed by laser scribing, in order to avoid the irradiation power being too large and damaging the base material, etc., or the laser oscillator becoming expensive due to high output, and In order to avoid the fact that the irradiation power is too small, the tact time becomes long, the separation or embedding becomes insufficient, and the reliability of electrical insulation and sealing insulation cannot be secured. It is preferably 200 μm or less, more preferably 5 μm or more and 100 μm or less, further preferably 10 μm or more and 80 μm or less, and particularly preferably 25 μm or more and 60 μm or less.

By the way, the organic EL device has a sealing structure that blocks the organic EL element from the external atmosphere in order to prevent moisture and oxygen (hereinafter, also referred to as water) from entering the organic EL element. However, when the sealing function of the organic EL element is insufficient, when the organic EL device is used for a long time, a non-light emitting point called a dark spot is generated. The dark spot will be described in detail. When the organic EL element is not sufficiently sealed, water or the like enters the sealing structure, and the organic EL element is exposed to water or the like. When used (lighted) in this state, an electrode constituting the organic EL element or a part of the organic compound layer near the electrode interface is oxidized, and an insulating oxide film is formed on the surface. When this oxide film is formed, the formation location is partially insulated, so that the location does not emit light during lighting and a dark spot is formed.
That is, in order to prevent the formation of dark spots in the organic EL device, it is necessary to reliably prevent the entry of water or the like into the organic EL element.

Therefore, in the first aspect of the present invention, the insulating groove is formed by removing at least the first electrode layer, the organic light emitting layer, and the second electrode layer, and the laminate is covered with a sealing layer. , that portion of the sealing layer has not been filled in the insulating groove.

According to the configuration of the present invention, since a part of the sealing layer is filled in the insulating groove, the stacked body in the light emitting region and the stacked body in the shape display region can be reliably insulated, and the sealing layer Thus, the laminate can be sealed.
According to a second aspect of the present invention, the sealing layer includes a third sealing layer on the outer side of the laminated structure as viewed from the substrate side, and the first sealing layer and the second sealing layer are dry-type. 2. The organic EL device according to claim 1, wherein the organic EL device is formed by a method, and the third sealing layer is formed by a wet method.

The invention according to claim 3 includes a cross-sectional structure having a laminate including a first electrode layer, an organic light emitting layer, and a second electrode layer in order on the main surface of the substrate, and the substrate is planar. In an organic EL device having a shape display region that displays a predetermined shape when driven and a light emitting region that emits light when driven, the light emitting region is continuous with the shape display region and the shape display region And has an insulating groove from which at least one of the first electrode layer and the second electrode layer is removed, and the insulating groove is formed at the boundary between the shape display region and the light emitting region. The insulating groove is formed by removing at least the first electrode layer, the organic light emitting layer, and the second electrode layer. Layer is covered, and a part of the sealing layer is filled in the insulating groove. When the substrate is viewed in plan, it has an outer periphery non-light emitting region, and the outer periphery non-light emitting region is formed so as to surround the light emitting region. The organic EL device is characterized in that the first electrode layer has a sealing layer connecting portion in direct contact, and the sealing layer connecting portion is formed so as to surround a light emitting region.
The invention according to claim 4 includes a cross-sectional structure having a laminate including a first electrode layer, an organic light emitting layer, and a second electrode layer in order on the main surface of the substrate, and the substrate is planar. In an organic EL device having a shape display region that displays a predetermined shape when driven and a light emitting region that emits light when driven, the light emitting region is continuous with the shape display region and the shape display region And has an insulating groove from which at least one of the first electrode layer and the second electrode layer is removed, and the insulating groove is formed at the boundary between the shape display region and the light emitting region. The insulating groove is formed by removing at least the first electrode layer, the organic light emitting layer, and the second electrode layer. Layer is covered, and a part of the sealing layer is filled in the insulating groove. When the substrate is viewed in plan, the substrate has an outer periphery non-light emitting region, and the outer periphery non-light emitting region is formed so as to surround the light emitting region. In addition, a hard resin is laminated, and a part of the hard resin has a hard resin connection part in direct contact with the first electrode layer, and the hard resin connection part is formed so as to surround the light emitting region. It is an organic EL device characterized by being.
That is, in these inventions, the sealing layer includes a laminated structure in which the first sealing layer and the second sealing layer are stacked from the base material side, and the first sealing layer is further removed from the insulating groove. It becomes Te, that part of the second sealing layer has been filled with the insulating groove.

  According to the configuration of the present invention, the insulating groove is formed by further removing the first sealing layer, and a part of the second sealing layer is filled in the insulating groove. The light emitting region and the shape display region can be reliably insulated and have high sealing performance.

According to a second aspect of the present invention, the sealing layer includes a third sealing layer on the outer side of the laminated structure as viewed from the substrate side, and the first sealing layer and the second sealing layer are dry-type. is formed by law, the third sealing layer, that is formed by a wet method.

According to the configuration of the present invention, the third sealing layer is formed by a wet method. That is, the third sealing layer is liquid or fluid in nature before film formation. Therefore, for example, when the raw material of the third sealing layer is formed of an organic solvent or the like, the organic solvent or the like may enter through the insulating groove and the organic light emitting layer in the stacked body may be dissolved in the organic solvent or the like. There is.
Therefore, according to the configuration of the present invention, the first sealing layer and the second sealing layer are formed by a dry method, and the second sealing layer is filled in the insulating groove. Therefore, the raw material for the third sealing layer can be prevented from entering the insulating groove.
Further, since the first sealing layer and the second sealing layer formed by the dry method and the third sealing layer formed by the wet method are sealed in a triple manner, these three layers are mutually connected. An organic EL device having a higher sealing property can be realized by complementing the sealing property.

The invention according to claim 3 has an outer periphery non-light-emitting region when the substrate is viewed in plan, and the outer periphery non-light-emitting region is formed so as to surround the light-emitting region, and the outer periphery non-light-emitting region in has a sealing layer connections to the sealing layer and the first electrode layer are in direct contact, the sealing layer connecting portion that is formed so as to surround the light emitting region.

  According to the configuration of the present invention, the sealing layer connecting portion in which the sealing layer and the first electrode layer are in direct contact with each other in the outer peripheral non-light emitting region, and the sealing layer connecting portion surrounds the periphery of the light emitting region. Thus, the entry of water or the like in the surface direction from the outside of the light emitting region can be blocked by the sealing layer.

The invention according to claim 4 has an outer periphery non-light emitting region when the substrate is viewed in plan, and the outer periphery non-light emitting region is formed so as to surround the light emitting region. The hard resin is laminated on the sealing layer, and further, a part of the hard resin has a hard resin connection portion that is in direct contact with the first electrode layer, and the hard resin connection portion has a light emitting region. that is formed to surround the periphery of.

  According to the configuration of the present invention, in the outer peripheral non-light emitting region, the hard resin is laminated on the sealing layer, and the hard resin connecting portion in which a part of the hard resin is in direct contact with the first electrode layer is provided. Since the hard resin connecting portion is formed so as to surround the periphery of the light emitting region, it is possible to block the entry of water or the like in the surface direction from the outside of the light emitting region with the hard resin.

The invention according to claim 5 includes a cross-sectional structure having a laminate including a first electrode layer, an organic light emitting layer, and a second electrode layer in order on the main surface of the substrate, and the substrate is planar. In an organic EL device having a shape display region that displays a predetermined shape when driven and a light emitting region that emits light when driven, the light emitting region is continuous with the shape display region and the shape display region And has an insulating groove from which at least one of the first electrode layer and the second electrode layer is removed, and the insulating groove is formed at the boundary between the shape display region and the light emitting region. Is continuous over the entire circumference of the light emitting region, and the second electrode layer has higher electrical conductivity than the first electrode layer. A peripheral non-light emitting region, and the peripheral non-light emitting region surrounds the light emitting region. In the outer peripheral non-light emitting region, the first electrode layer and the second electrode layer have an electrode auxiliary portion that is in direct contact, the electrode auxiliary portion when the substrate is viewed in plan view, it is organic EL device you wherein are formed so as to surround the 80 percent or more of the regions of the entire circumference of the light emitting region.
That is, according to the present invention, the second electrode layer has higher electrical conductivity than the first electrode layer, and has an outer periphery non-light emitting region when the substrate is viewed in plan view. The light emitting region is formed so as to surround the light emitting region, and has an electrode auxiliary portion in which the first electrode layer and the second electrode layer are in direct contact with each other in the outer peripheral non-light emitting region. When the substrate is viewed in plan, it is formed so as to surround an area of 80% or more of the entire circumference of the light emitting area.

  According to the configuration of the present invention, the outer peripheral non-light-emitting region has an electrode auxiliary portion in which the first electrode layer and the second electrode layer are in direct contact, and the electrode auxiliary portion is when the substrate is viewed in plan view. The light emitting region is formed so as to surround an area of 80% or more of the entire circumference. That is, the electrode auxiliary portion surrounds most of the entire circumference of the light emitting region, and electrical conduction of the first electrode layer is assisted by the second electrode layer forming the electrode auxiliary portion. In the part where the electrode auxiliary portion is formed, even if the first electrode layer having a low conductivity is used, the same potential can be obtained evenly. Power can be supplied to the light emitting region, and uneven emission of light in the light emitting region can be suppressed.

The above-described invention has a moisture-proof sheet on the outside of the third sealing layer on the basis of the base material, and the soaking sheet from the third sealing layer side between the third sealing layer and the moisture-proof sheet, A gas adsorbing sheet is located, the soaking sheet is provided with a plurality of gas flow paths capable of flowing gas, the gas adsorbing sheet is capable of adsorbing the gas that has passed through the gas flow path, The moisture-proof sheet may include an aluminum sheet having a thickness of 2 μm to 10 μm .

According to the configuration of this, the moisture-proof sheet is attached to the outer side of the third sealing layer. That is, according to the configuration of the present invention, since the third sealing layer is formed by a wet method, for example, when the drying is not sufficient, if the organic EL device is kept on for a long period of time, the third sealing layer is formed. Gas may be generated from the stop layer. When this gas is generated, the moisture-proof sheet is swollen and the design is deteriorated.
Therefore, according to the configuration of this, the soaking sheet having a plurality of gas capable distribution gas flow path between the third sealing layer and the moisture-proof sheet, the adsorbable gas adsorption sheet gas are located . That is, the heat generated by the laminate in the light emitting region is soaked by the soaking sheet, and even if gas is generated from the third sealing layer, it passes through the gas flow path of the soaking sheet. Then, it can be adsorbed to the gas adsorbing sheet. Therefore, it can prevent that a moisture-proof sheet swells outside by generation | occurrence | production of gas.
Further, according to the configuration of this, the moisture-proof sheet, a high sealing property because it contains the following aluminum sheet 10μm or more thick 2 [mu] m.

In the above-described invention, a soft resin layer may be interposed between the third sealing layer and the soaking sheet, or between the soaking sheet and the gas adsorbing sheet .

According to the configuration of this, between the third sealing layer and the heat spreader sheet, or, since the soft resin layer is interposed between the heat spreader sheet and gas adsorption sheet, compressed from the third sealing layer side stress Even if it receives, etc., the force can be released with almost no resistance to the stress. Therefore, the laminated body side is not pressed.

The above-described invention is a bottom emission type organic EL device that extracts light from a surface opposite to the main surface of the substrate, and when the surface on the opposite side is viewed when not driven, The shape display area may be the same color .

According to the configuration of this, at the time of non-driving, when viewed face of the opposite side, the light emitting region and shape display area because it has a same color, obscuring the boundary of the light emitting area and the shape display area, design Good sex.

  According to the organic EL device of the present invention, it is possible to decorate a desired figure or the like, and it is difficult for the lifetime to decrease due to the decoration.

1 is a conceptual diagram of an organic EL device according to a first embodiment of the present invention. It is explanatory drawing of the organic electroluminescent apparatus which concerns on 1st Embodiment of this invention, (a) is a top view of the organic electroluminescent apparatus of FIG. 1, (b) is AA sectional drawing of (a). It is explanatory drawing of the organic electroluminescent apparatus which concerns on 1st Embodiment of this invention, (a) is a top view of the organic electroluminescent apparatus of FIG. 1, (b) is BB sectional drawing of (a). It is explanatory drawing of the organic electroluminescent apparatus which concerns on 1st Embodiment of this invention, (a) is a top view of the organic electroluminescent apparatus of FIG. 1, (b) is CC sectional drawing of (a). It is explanatory drawing of the organic electroluminescent apparatus which concerns on 1st Embodiment of this invention, (a) is a top view of the organic electroluminescent apparatus of FIG. 1, (b) is DD sectional drawing of (a). It is a disassembled perspective view of the organic electroluminescent apparatus of FIG. It is explanatory drawing showing each area | region of the organic electroluminescent apparatus of FIG. It is explanatory drawing showing the manufacturing process of the organic electroluminescent apparatus of FIG. 1, (a) is a top view in the state which formed the isolation part formation groove | channel, (b) is AA sectional drawing of (a). It is explanatory drawing showing the manufacturing process of the organic electroluminescent apparatus of FIG. 1, (a) is a top view in the state which formed the functional layer into a film, (b) is AA sectional drawing of (a). It is explanatory drawing showing the manufacturing process of the organic electroluminescent apparatus of FIG. 1, (a) is a top view of the state which formed the electrode connection groove | channel and the auxiliary electrode connection groove | channel, (b) is AA cross section of (a). FIG. It is explanatory drawing showing the manufacturing process of the organic electroluminescent apparatus of FIG. 1, (a) is a top view in the state which formed the 2nd electrode layer into a film, (b) is AA sectional drawing of (a). . It is explanatory drawing showing the manufacturing process of the organic electroluminescent apparatus of FIG. 1, (a) is a top view in the state which formed the 1st sealing layer connection groove | channel and the isolated part formation groove | channel, (b) is (a). It is AA sectional drawing. It is explanatory drawing showing the manufacturing process of the organic electroluminescent apparatus of FIG. 1, (a) is a top view in the state which formed the 1st inorganic sealing layer into a film, (b) is AA sectional drawing of (a). It is. It is explanatory drawing showing the manufacturing process of the organic electroluminescent apparatus of FIG. 1, (a) is a top view in the state which formed the 2nd sealing layer connection groove | channel and the shape display groove | channel, (b) is A of (a). It is -A sectional drawing. It is explanatory drawing showing the manufacturing process of the organic electroluminescent apparatus of FIG. 1, (a) is a top view in the state which formed the 2nd inorganic sealing layer into a film, (b) is AA sectional drawing of (a). It is. It is explanatory drawing showing the manufacturing process of the organic electroluminescent apparatus of FIG. 1, (a) is a top view in the state which formed the 3rd inorganic sealing layer into a film, (b) is AA sectional drawing of (a). It is. It is explanatory drawing showing the manufacturing process of the organic electroluminescent apparatus of FIG. 1, (a) is a top view in the state which formed the removal area | region, (b) is AA sectional drawing of (a). It is explanatory drawing showing the manufacturing process of the organic EL apparatus of FIG. 1, Comprising: It is explanatory drawing at the time of apply | coating the raw material of a hard contact bonding layer. It is explanatory drawing showing the area | region which apply | coats the raw material of the hard contact bonding layer by the side of the moisture-proof sheet | seat of FIG. It is a perspective view showing the soaking | uniform-heating sheet | seat of the organic electroluminescent apparatus of FIG. It is a perspective view showing the board | substrate and organic EL element of FIG. It is a top view showing the board | substrate and organic EL element of FIG. It is explanatory drawing showing the flow of an electric current at the time of connecting an external power supply to the organic electroluminescent apparatus of FIG. It is explanatory drawing showing the flow of an electric current at the time of connecting an external power supply to the organic electroluminescent apparatus of FIG. 1, and is a top view of the state of FIG. It is explanatory drawing showing the flow of the electric current of the principal part vicinity of the organic EL apparatus of FIG. It is explanatory drawing showing the light extraction surface at the time of light extinction and lighting of the organic electroluminescent apparatus of FIG. 1, (a) is a top view at the time of light extinction, (b) is a top view at the time of lighting. It is AA sectional drawing of the organic electroluminescent apparatus in other embodiment. It is AA sectional drawing of the organic electroluminescent apparatus in other embodiment. It is AA sectional drawing of the organic electroluminescent apparatus in other embodiment. It is AA sectional drawing of the organic electroluminescent apparatus in other embodiment. It is explanatory drawing showing the light extraction surface at the time of light extinction / lighting of the organic electroluminescent apparatus in other embodiment, (a) is a top view at the time of light extinction, (b) is a top view at the time of lighting.

  The present invention relates to an organic EL device. FIG. 1 shows an organic EL device 1 according to the first embodiment of the present invention. Hereinafter, the positional relationship between the top, bottom, left, and right will be described based on the posture of FIG. 1 unless otherwise specified. That is, the light extraction side when the organic EL device 1 is turned on is on the bottom. In addition, the physical property described below represents the physical property in a standard state unless otherwise specified.

In the organic EL device 1 of the present embodiment, an organic EL element 20 (laminated body) is laminated on a light-transmitting substrate 2 as shown in FIG. 6, and an inorganic sealing layer 21 (sealing) is further formed thereon. The organic EL element 20 is primarily sealed by the stop layer.
Further, in the organic EL device 1, a soaking sheet 10, a soft adhesive layer 11, and a gas adsorbing sheet 12 are placed in this order on an inorganic sealing layer 21 as shown in FIG. As shown in FIGS. 2, 3, 4, and 5, the organic EL device 1 has a moisture-proof sheet 14 placed on a gas adsorbing sheet 12 and integrated with a hard adhesive layer 13. That is, the organic EL element 20 of the organic EL device 1 is secondarily sealed by the hard adhesive layer 13 and the moisture-proof sheet 14.

  The organic EL element 20 is formed by laminating a first electrode layer 3, a functional layer 5, and a second electrode layer 6 from the substrate 2 side as shown in FIGS. The layer 21 is formed by laminating the first inorganic sealing layer 7, the second inorganic sealing layer 8, and the third inorganic sealing layer 9 from the substrate 2 side.

  Further, as shown in FIG. 21, the organic EL device 1 has a shape display groove 49 that is continuous in an annular shape, and a shape display region 29 in which a shape such as a desired figure emerges when driven by the shape display groove 49. (See FIG. 7). One feature of this shape display area 29 is that it has a decoration function when it is turned on.

  Based on this, the detailed structure of the organic EL device 1 will be described below.

The organic EL device 1 has a shape display area 29 having a decoration function, a light emitting area 30 that emits light, and light emission when turned on as shown in FIG. The outer peripheral non-light emitting region 31 is not formed.
The shape display area 29 is an area having a desired shape such as a figure as shown in FIGS. 2, 3, 4, and 5, and the first electrode layer 3 and the second electrode layer in the light emitting area 30. 6 is a region electrically insulated from at least one of the electrode layers 6.
The light emitting region 30 is a region provided so as to surround the shape display region 29 as shown in FIG. 7, and as shown in FIGS. 2, 3, 4, and 5, the first electrode layer 3, This is a region where the functional layer 5 and the second electrode layer 6 overlap. The light emitting area 30 and the shape display area 29 are continuous in the surface direction as shown in FIG.
The outer peripheral non-light emitting region 31 is a region provided so as to surround the light emitting region 30 as shown in FIG. The outer peripheral non-light emitting region 31 and the light emitting region 30 are continuous in the surface direction.
The outer peripheral non-light emitting region 31 has power feeding regions 32 and 33 that can feed power to the organic EL element 20 in the light emitting region 30 by being electrically connected to an external power source.
The power supply region 32 is a region that can be electrically connected to the positive electrode of the external power source, and is electrically connected to the first electrode layer 3 in the light emitting region 30 as shown in FIGS. 2, 3, 4, and 5. It is a connected area. That is, the power supply region 32 is a region that bears the positive electrode of the entire organic EL device 1.
The power feeding region 33 is a region that can be electrically connected to the negative electrode of the external power source, and is electrically connected to the second electrode layer 6 in the light emitting region 30 as shown in FIGS. 2, 3, 4, and 5. It is a connected area. That is, the power supply region 33 is a region that bears the negative electrode of the entire organic EL device 1. The power feeding area 33 is electrically separated from the power feeding area 32.

The shape display region 29 is located at the center of the width direction w and the length direction l (the direction perpendicular to the width direction w and also perpendicular to the thickness direction) of the substrate 2 as shown in FIG. The light emitting area 30 is positioned along the entire circumference of the shape display area 29, and the outer peripheral non-light emitting area 31 is positioned along the entire circumference of the light emitting area 30.
The power supply region 33 protrudes from one or more sides of the substrate 2 toward the light emitting region 30, and the power supply region 32 is outside the light emitting region 30 (on the end side of the substrate 2). It is formed in the remaining outer peripheral non-light emitting region 31 other than.
In the present embodiment, the power feeding region 33 is formed along a part of the vertical side that is one side extending in the vertical direction l of the substrate 2, and is closer to the light emitting region 30 than the other peripheral non-light emitting region 31 ( Projects toward the center.
The power feeding region 32 is formed outside the light emitting region 30 (on the end portion side of the substrate 2) along the other part of the vertical side and the remaining side.

The organic EL device 1 according to the present embodiment is divided into a plurality of grooves by a plurality of grooves having different depths as shown in FIGS.
Specifically, the organic EL device 1 includes an isolated portion forming groove 40 from which the first electrode layer 3 has been partially removed, an electrode connection groove 41 from which the functional layer 5 has been partially removed, and an auxiliary shown in FIG. The electrode connection grooves 42 and 43, the first sealing layer connection grooves 44 and 45 partially removing both the functional layer 5 and the second electrode layer 6, and the first electrode layer 3 and the functional layer 5 partially Isolated portion forming grooves 46 and 47 from which the second electrode layer 6 has been removed, a second sealing layer connection groove 48 from which the functional layer 5, the second electrode layer 6 and the first inorganic sealing layer 7 have been partially removed, The first electrode layer 3, the functional layer 5, the second electrode layer 6, and the shape display groove 49 from which the first inorganic sealing layer 7 has been partially removed are provided. Yes.

Explaining each groove, the isolated portion forming groove 40 is a groove for separating the first electrode layer 3 laminated on the substrate 2 as shown in FIGS. In the direction toward the part side), the light emitting region 30 and the power feeding region 33 are separated. Further, the isolated portion forming groove 40 is also a groove for cutting off a part of the first electrode layer 3 to form the isolated portion 50.
A part of the functional layer 5 enters the isolated portion forming groove 40 as shown in FIGS. 2, 8, and 9, and the functional layer 5 is in direct contact with the substrate 2 at the bottom of the isolated portion forming groove 40. ing.

As shown in FIGS. 2, 10, and 11, the electrode connection groove 41 is a groove that electrically connects the isolated portion 50 located in the power feeding region 33 and the second electrode layer 6 located in the light emitting region 30.
Specifically, the electrode connection groove 41 is a groove located in the power feeding region 33 as shown in FIG. 2, and a groove that directly contacts a part of the second electrode layer 6 extending from the light emitting region 30 with the isolated portion 50. It is.

The auxiliary electrode connection grooves 42 and 43 are grooves that electrically connect the first electrode layer 3 and the second electrode layer 6 in the outer peripheral non-light emitting region 31 as shown in FIGS. The auxiliary electrode connection grooves 42 and 43 are provided so as to surround the outside of the light emitting region 30.
Specifically, the auxiliary electrode connection groove 42 is a groove located in the power feeding region 33 as shown in FIG. 2 and directly connecting the first electrode layer 3 and the second electrode layer 6. That is, the auxiliary electrode connection groove 42 forms an electrode auxiliary portion 62 formed by direct contact between the first electrode layer 3 and the second electrode layer 6 as shown in FIG.
The auxiliary electrode connection groove 42 is a linear groove extending in the vertical direction l (length direction), and is parallel to the vertical side of the substrate 2.
The auxiliary electrode connection groove 43 is a groove located in the power feeding region 32 and directly connecting the first electrode layer 3 and the second electrode layer 6. That is, the auxiliary electrode connection groove 43 forms an electrode auxiliary portion 63 formed by direct contact between the first electrode layer 3 and the second electrode layer 6 as shown in FIG.

  The electrode auxiliary portions 62 and 63 are arranged in a line in a ring around the light emitting region 30 as shown in FIG. 22, and are formed so as to surround a region of 80 percent or more and 100 percent or less of the entire circumference of the light emitting region 30. The light emitting region 30 is preferably formed so as to surround a region of 90% to 100% of the entire circumference of the light emitting region 30.

The auxiliary electrode connection groove 43 will be described in more detail. As shown in FIG. 10, the auxiliary electrode connection groove 43 includes auxiliary electrode vertical grooves 52a, 52b, and 52c extending in the vertical direction l (length direction) and a horizontal direction w (width). Auxiliary electrode lateral grooves 53a and 53b extending in the direction).
The auxiliary electrode vertical grooves 52 a and 52 b and the auxiliary electrode vertical groove 52 c are located on both outer sides in the horizontal direction w with respect to the light emitting region 30.
The auxiliary electrode vertical grooves 52a and 52b located on one side (the right side in FIG. 10) are aligned with the auxiliary electrode connection groove 42, and the auxiliary electrode vertical grooves 52a and 52b are arranged on the auxiliary electrode connection groove 42. It is arranged across. In short, in the vertical direction l, the auxiliary electrode vertical groove 52a, the auxiliary electrode connecting groove 42, and the auxiliary electrode vertical groove 52b vertically cut the substrate 2 with predetermined intervals.
The auxiliary electrode vertical groove 52 c located on the other side (left side in FIG. 10) cuts the substrate 2 vertically and is parallel to the vertical side of the substrate 2. That is, the auxiliary electrode vertical groove 52 c is parallel to the auxiliary electrode vertical grooves 52 a and 52 b and the auxiliary electrode connection groove 42.

  The auxiliary electrode lateral grooves 53 a and 53 b are located on both outer sides in the longitudinal direction 1 with respect to the light emitting region 30 and cross the substrate 2. The auxiliary electrode lateral grooves 53 a and 53 b are parallel to the lateral sides of the substrate 2, and are parallel to each other with the light emitting region 30 interposed therebetween.

  The first sealing layer connection grooves 44 and 45 are grooves for removing the functional layer 5 and the second electrode layer 6 on the first electrode layer 3 as shown in FIGS. It is a groove for directly connecting the first inorganic sealing layer 7.

  The first sealing layer connection grooves 44 are arranged corresponding to the respective sides, and are vertically cut or crossed in the vertical direction and the horizontal direction, respectively. Further, the first sealing layer connection groove 44 is formed in parallel to each side.

The first sealing layer connection grooves 45 are arranged corresponding to the respective sides, and are vertically cut or crossed in the vertical direction and the horizontal direction, respectively. The first sealing layer connection groove 45 is formed in parallel to each side except for a part.
Specifically, the first sealing layer connection groove 45 includes first sealing vertical grooves 64a, 64b, and 64c extending in the vertical direction l (length direction) and a first extension extending in the horizontal direction w (width direction). One sealing lateral groove 65a, 65b is formed.
The first sealing vertical grooves 64 a and 64 b and the first sealing vertical groove 64 c are located on both outer sides of the first sealing layer connection groove 44 in the vertical direction 1 with respect to the light emitting region 30. Similarly, the first sealing lateral groove 65 a and the first sealing lateral groove 65 b are located on both outer sides of the first sealing layer connection groove 44 in the lateral direction w with respect to the light emitting region 30.

The first sealing vertical grooves 64a and 64b located on one side (the right side in FIG. 12) are formed to cross the power supply region 32 and the power supply region 33 so as to intersect the isolated portion forming grooves 46 and 47, They are arranged on the same straight line at a predetermined interval in the power feeding region 33. That is, in the longitudinal direction l, the first sealing longitudinal grooves 64a and 64b longitudinally cut the substrate 2 with a predetermined interval.
The first sealing vertical groove 64 c located on the other side (left side in FIG. 12) cuts the substrate 2 vertically and is parallel to the vertical side of the substrate 2. That is, the first sealing vertical groove 64c is parallel to the first sealing vertical grooves 64a and 64b.

The isolated portion forming grooves 46 and 47 are grooves for removing the first electrode layer 3, the functional layer 5, and the second electrode layer 6 on the substrate 2, and in the vertical direction l, the light emitting region 30, the power feeding region 32, and the light emitting region. 30 and the power feeding area 33 are separated.
The isolated portion forming grooves 46 and 47 both extend in the lateral direction w, and a part of the isolated portion forming grooves 46 and 47 is separated from the first electrode layer 3 as shown in FIG. 50 is formed. A part of the first inorganic sealing layer 7 enters the isolated portion forming grooves 46 and 47, and the first inorganic sealing layer 7 is in direct contact with the substrate 2 at the bottom of the isolated portion forming grooves 46 and 47. doing.

  The isolated portion forming groove 46 intersects (orthogonally) the first sealing layer connection groove 44 and the first sealing vertical groove 64a as shown in FIG. The isolated portion forming groove 47 intersects (orthogonally) the first sealing layer connection groove 44 and the first sealing vertical groove 64b. The isolated portion forming grooves 46, 47 are continuous with the isolated portion forming groove 40 at the center side end.

The second sealing layer connection groove 48 is a groove for removing the functional layer 5, the second electrode layer 6, and the first inorganic sealing layer 7 on the first electrode layer 3 as shown in FIGS. It is a groove that directly connects the first electrode layer 3 and the second inorganic sealing layer 8.
The second sealing layer connection grooves 48 are arranged corresponding to the respective sides of the substrate 2, and are vertically cut or crossed in the vertical direction and the horizontal direction, respectively. The second sealing layer connection groove 48 is formed in parallel to each side.

The shape display groove 49 is a groove that forms a contour of a shape or the like, which is a feature of the present invention, and is a groove that separates the shape display region 29 and the light emitting region 30 as shown in FIGS. .
The shape display groove 49 is a groove for removing at least one of the first electrode layer 3 and the second electrode layer 6. In this embodiment, the shape display groove 49 is the first electrode on the substrate 2 as shown in FIG. The groove is obtained by removing all four layers of the layer 3, the functional layer 5, the second electrode layer 6, and the first inorganic sealing layer 7.
A part of the second inorganic sealing layer 8 enters the shape display groove 49, and the second inorganic sealing layer 8 is in direct contact with the substrate 2 at the bottom of the shape display groove 49. In other words, the organic EL element 20 in the light emitting region 30 is electrically separated in the plane direction.
The groove width of the shape display groove 49 is preferably 1 μm or more and 200 μm or less, more preferably 5 μm or more and 100 μm or less, further preferably 10 μm or more and 80 μm or less, and particularly preferably 25 μm or more and 60 μm or less. preferable.

Here, the positional relationship between the grooves will be described.
First, paying attention to the lateral direction w, as shown in FIGS. 7 and 22, the isolated portion forming groove 40 is located outside the shape display groove 49 with the shape display region 29 as a reference, and the electrode is formed outside the isolated portion forming groove 40. The connection groove 41 is located. Further, the first sealing layer connection groove 45 is located on both outer sides of the first sealing layer connection groove 44, and the auxiliary electrode is interposed between the first sealing layer connection groove 44 and the first sealing layer connection groove 45. Connection grooves 42 and 43 are located respectively. That is, as shown in FIG. 21, the auxiliary electrode portion 58 is separated by the first sealing layer connection groove 44 and the first sealing layer connection groove 45. Further, as shown in FIG. 22, the auxiliary electrode connection groove 42 and the auxiliary electrode vertical grooves 52 a and 52 b are located in one auxiliary electrode portion 58, and the auxiliary electrode vertical groove 52 c is located in the other auxiliary electrode portion 58. ing. The second sealing layer connection grooves 48 are located on both outer sides of the first sealing layer connection grooves 45.
As described above, the organic EL device 1 includes the isolated portion forming groove 40, the electrode connection groove 41, the first sealing layer connection groove 44, the auxiliary electrode connection groove 42, in the lateral direction w from the center side toward one outer side. 43, the first sealing layer connection groove 45, and the second sealing layer connection groove 48 are arranged in this order. Further, the organic EL device 1 includes a first sealing layer connection groove 44, an auxiliary electrode connection groove 43, a first sealing layer connection groove 45, and a second sealing layer connection groove 48 from the center side toward the other outer side. They are arranged in order.

On the other hand, paying attention to the longitudinal direction l, the first sealing layer connection grooves 44 and 44 are located outside the isolated portion forming grooves 46 and 47 with the center of the substrate 2 as a reference, as shown in FIGS. The first sealing layer connection grooves 45 and 45 are located outside the first sealing layer connection grooves 44 and 44, and the first sealing layer connection groove 44 and the first sealing layer connection groove 45 are between them. Auxiliary electrode connection grooves 43 are located in the respective positions. That is, it has the auxiliary electrode part 59 separated by the first sealing layer connection groove 44 and the first sealing layer connection groove 45 as shown in FIG. 21, and the auxiliary electrode part 59 as shown in FIG. Electrode lateral grooves 53a and 53b are located. The second sealing layer connection groove 48 is located outside the first sealing layer connection groove 45. The shape display groove 49 is provided at an arbitrary position between the first sealing layer connection grooves 44 and 44.
As described above, the organic EL device 1 includes the isolated portion forming groove 46, the first sealing layer connecting groove 44, the auxiliary electrode connecting groove 43, and the first sealing layer from the center side to one outer side in the longitudinal direction l. The connection grooves 45 and the second sealing layer connection grooves 48 are arranged in this order. Further, the organic EL device 1 includes the isolated portion forming groove 47, the first sealing layer connecting groove 44, the auxiliary electrode connecting groove 43, the first sealing layer connecting groove 45, the second sealing, from the center side toward the other outer side. The stop layer connection grooves 48 are arranged in this order.

  Then, the positional relationship of each part of the organic EL device 1 will be described.

As shown in FIGS. 2 and 4, the soaking sheet 10 is placed in a planar shape on the inorganic sealing layer 21, and is located at least in the entire light emitting region 30. That is, the soaking sheet 10 covers the projection surface in the member thickness direction of the organic EL element 20 in the light emitting region 30. In the present embodiment, the soaking sheet 10 is further located in the entire shape display area 29, but does not reach the outer peripheral non-light emitting area 31.
Further, the gas circulation holes 25 of the soaking sheet 10 are evenly distributed in the light emitting region 30 as shown in FIGS.

2 and 4, the soft adhesive layer 11 is spread over the entire upper surface of the soaking sheet 10 and is located at least in the entire light emitting region 30, like the soaking sheet 10. . That is, the soft adhesive layer 11 covers the projection surface of the organic EL element 20 in the light emitting region 30 in the member thickness direction, and covers the gas circulation holes 25 of the soaking sheet 10 as shown in FIG.
In the present embodiment, the soaking sheet 10 is further located in the entire shape display area 29, but does not reach the outer peripheral non-light emitting area 31.

2 and 4, the gas adsorbing sheet 12 is placed on the entire upper surface of the soft adhesive layer 11 so as to spread in a planar shape, and at least the entire light emitting region 30 is the same as the soaking sheet 10 and the soft adhesive layer 11. Is located. That is, the gas adsorbing sheet 12 covers the projection surface in the member thickness direction of the organic EL element 20 in the light emitting region 30, and the projection surface in the thickness direction of the gas flow holes 25 of the soaking sheet 10 as shown in FIG. It covers the top.
In the present embodiment, the gas adsorbing sheet 12 is also located in the entire shape display area 29, but does not reach the outer peripheral non-light emitting area 31.

  As shown in FIGS. 2 and 4, the hard adhesive layer 13 supports the moisture-proof sheet 14 so as not to be close to the organic EL element 20 in the light emitting region 30. That is, the hard adhesive layer 13 forms a wall portion surrounding the region including the light emitting region 30. The hard adhesive layer 13 is formed to extend from the outer peripheral non-light emitting region 31 to the light emitting region 30.

As shown in FIGS. 1 and 6, the moisture-proof sheet 14 is installed across at least the entire gas adsorbing sheet 12 and a part or the whole of the hard adhesive layer 13. That is, as shown in FIGS. 2 and 4, the moisture-proof sheet 14 is arranged across three regions, the shape display region 29, the light emitting region 30, and the outer peripheral non-light emitting region 31. In the present embodiment, the moisture-proof sheet 14 is installed on the entire gas adsorbing sheet 12 and the hard adhesive layer 13 as shown in FIG.
Since the moisture-proof sheet 14 extends to the outer peripheral non-light emitting region 31, the distance between the outside and the organic EL element 20 in the light emitting region 30 can be increased, and into the organic EL element 20 in the light emitting region 30. Ingress of water or the like can be effectively prevented.

Here, when attention is paid to the adhesion portion between the moisture-proof sheet 14 and the hard adhesive layer 13, the moisture-proof sheet 14 has a peripheral end portion (an edge of the soaking sheet 10) when viewed in plan as shown in FIG. 19. It has a coating area 60 within 5 mm inside.
The hard adhesive layer 13 is provided on the surface of the moisture-proof sheet 14 on the substrate 2 side. The hard adhesive layer 13 is provided over the entire circumference in the application region 60.
The width W1 of the hard adhesive layer 13 (the length in the direction orthogonal to the circumferential direction of the application region 60) is 0.1 mm or more and 5 mm or less. Therefore, since it has sufficient adhesion area with the 1st electrode layer 3 and the inorganic sealing layer 21 which are located in the outer periphery non-light-emission area | region 31, sufficient integrated strength is securable.

Next, a method for manufacturing the organic EL device 1 according to this embodiment will be described.
The organic EL device 1 is manufactured by forming a film using a vacuum vapor deposition device and a CVD device (not shown), and patterning using a patterning device (not shown) (laser scribing device in the present embodiment).

First, the organic EL element formation process which laminates | stacks the organic EL element 20 is performed.
Specifically, the first electrode layer 3 is formed on a part or all of the substrate 2 by sputtering or CVD, and the substrate 2 on which the first electrode layer 3 is formed is formed as shown in FIG. The isolated portion forming groove 40 is formed by a laser scribing device.
At this time, the isolated portion forming groove 40 is formed parallel to the vertical side of the substrate 2 as shown in FIG.
The isolated portion forming groove 40 is formed at the boundary between the light emitting region 30 and the power feeding region 33 when the organic EL device 1 is formed as shown in FIG.

Next, an electron injection layer, an electron transport layer, a light emitting layer, a hole transport layer, a hole injection layer, etc. are applied to this substrate (the substrate 2 on which the first electrode layer 3 is laminated) by a vacuum deposition apparatus as shown in FIG. Are sequentially laminated to form the functional layer 5.
At this time, the functional layer 5 is laminated on the entire surface of the substrate 2 as shown in FIG. 9, the functional layer 5 is laminated in the isolated part forming groove 40, and the functional layer 5 is filled in the isolated part forming groove 40. Yes.

Thereafter, the electrode connection groove 41 and the auxiliary electrode connection grooves 42 and 43 are formed by a laser scribing device on the substrate on which the functional layer 5 is formed as shown in FIG.
At this time, the electrode connecting groove 41 is located in the power feeding region 33 as shown in FIG. 2B and is formed in parallel to the vertical side. The auxiliary electrode connection grooves 42 and 43 are formed in parallel to each side as shown in FIG. 10, and the auxiliary electrode connection grooves 42 and 43 are located outside the electrode connection groove 41 in the inner and outer directions.

Next, as shown in FIG. 11, the second electrode layer 6 is formed on this substrate (the substrate 2 on which the functional layer 5 is laminated) by a vacuum vapor deposition apparatus.
At this time, the second electrode layer 6 is laminated on the entire surface of the functional layer 5 as shown in FIG. The electrode connection groove 41 and the auxiliary electrode connection grooves 42 and 43 are filled with the second electrode layer 6. That is, electrode auxiliary portions 62 and 63 are formed in the auxiliary electrode connection grooves 42 and 43.

Thereafter, the first sealing layer connecting grooves 44 and 45 and the isolated portion forming grooves 46 and 47 are formed on the substrate on which the second electrode layer 6 is formed by a laser scribing apparatus as shown in FIG.
At this time, the first sealing layer connection grooves 44 and 45 are formed in parallel to each side as shown in FIG. 12, and the first sealing layer connection grooves 45 are connected to the first sealing layer in the inner and outer directions. It is located outside the groove 44.
The isolated portion forming grooves 46 and 47 extend in a direction orthogonal to the vertical side, and the end portions thereof are continuous with the isolated portion forming groove 40. That is, the first electrode layer 3 is separated by the isolated portion forming groove 40 and the isolated portion forming grooves 46 and 47, and the isolated portion 50 is formed. That is, in the plane direction, the isolated portion 50 that is a part of the first electrode layer 3 and the other first electrode layer 3 are electrically separated.
The above is the organic EL element forming step.

Then, the inorganic sealing layer lamination process which forms the inorganic sealing layer 21 is performed.
Specifically, first, as shown in FIG. 13, a part of this substrate (the substrate 2 on which the organic EL element 20 is laminated) is covered with a mask, and the first inorganic sealing layer 7 is formed by a CVD apparatus. .
At this time, as shown in FIG. 13, the first inorganic sealing layer 7 covers at least the second electrode layer 6 in the light emitting region 30 and further covers the first sealing layer connecting groove 45 to the outside. doing. However, the end of the substrate 2 is not covered. That is, as shown in FIG. 13, an overhanging portion 51 in which the organic EL element 20 overhangs from the first inorganic sealing layer 7 is formed.
As shown in FIG. 13, the first inorganic sealing layer 7 is filled in the first sealing layer connecting grooves 44 and 45 and the isolated portion forming grooves 46 and 47. That is, the organic EL element 20 in the light emitting region 30 is sealed with the first inorganic sealing layer 7.

Thereafter, a second sealing layer connection groove 48 and a shape display groove 49 are formed on the substrate on which the first inorganic sealing layer 7 has been formed by a laser scribing apparatus as shown in FIG.
At this time, the second sealing layer connection groove 48 is formed in parallel to each side as shown in FIG. The shape display groove 49 is formed along the contour of a desired shape.

Next, as shown in FIG. 15, the second inorganic sealing layer 8 is formed on this substrate (the substrate 2 on which the first inorganic sealing layer 7 is laminated) by a CVD apparatus.
At this time, as shown in FIG. 15, the second inorganic sealing layer 8 is laminated on the entire surface of the first inorganic sealing layer 7 and further beyond the end of the first inorganic sealing layer 7. It reaches to the end. That is, it is laminated on the entire surface of the substrate 2. The second inorganic sealing layer 8 is filled in the second sealing layer connection groove 48 and the shape display groove 49. That is, the organic EL element 20 in the light emitting region 30 is further sealed by the second inorganic sealing layer 8.

Thereafter, the substrate on which the second inorganic sealing layer 8 is formed is taken out from the CVD apparatus, the raw material of the third inorganic sealing layer 9 is applied to the second inorganic sealing layer 8, and the third inorganic sealing layer 9 is applied. The inorganic sealing layer 21 is formed as shown in FIG.
At this time, the third inorganic sealing layer 9 covers the entire surface of the second inorganic sealing layer 8 as shown in FIG.
Thus, the inorganic sealing layer 21 is formed by laminating the third inorganic sealing layer 9 formed by the wet method on the first inorganic sealing layer 7 and the second inorganic sealing layer 8 formed by the dry method. Is formed.

Thereafter, the substrate on which the third inorganic sealing layer 9 is formed moves again under a vacuum atmosphere, and the overhanging portion where the organic EL element 20 protrudes from the first inorganic sealing layer 7 by a laser scribing device. Laser is irradiated to a position corresponding to 51 (see FIG. 13), and the layer above the first electrode layer 3 is removed as shown in FIG.
At this time, as shown in FIG. 17, the removal region 56 from which the layer above the first electrode layer 3 has been removed is outside the second sealing layer connection groove 48 and along each side of the substrate 2. Is formed.
That is, the removal region 56 is formed so as to surround the light emitting region 30 (see FIG. 7), and a part of the first electrode layer 3 in the power feeding region 32 and the first electrode layer 3 in the power feeding region 33. A part of the (isolated portion 50) is exposed from the inorganic sealing layer 21 to form the power feeding portions 35 and 36.

And the soaking | uniform-heating sheet | seat 10 is mounted and adhere | attached on the board | substrate obtained by the above-mentioned procedure. Thereafter, the gas adsorbing sheet 12 is bonded to the soaking sheet 10 via the soft adhesive layer 11.
At this time, the soaking sheet 10 is placed on at least the inorganic sealing layer 21 in the light emitting region 30 as shown in FIG. That is, the soaking sheet 10 indirectly covers the entire surface of the organic EL element 20 in the light emitting region 30.
The soft adhesive layer 11 is located on the soaking sheet 10 and on the projection surface in the member thickness direction of the organic EL element 20 in the light emitting region 30.
The gas adsorbing sheet 12 is located on the soft adhesive layer 11 and on the projection surface of the gas flow hole 25 of the soaking sheet 10.

Subsequently, the raw material of the hard adhesive layer 13 is applied to the substrate on which the gas adsorbing sheet 12 is installed by a dispenser, the moisture-proof sheet 14 is placed on the hard adhesive layer 13, and the hard adhesive layer 13 is placed under a predetermined temperature T1. The hard adhesive layer 13 is formed by drying / curing the raw material.
At this time, the hard adhesive layer 13 is formed across the first electrode layer 3 in the removal region 56, the third inorganic sealing layer 9 of the inorganic sealing layer 21, and the gas adsorbing sheet 12 as shown in FIG. Has been. That is, the 1st electrode layer 3, the 3rd inorganic sealing layer 9, and the gas adsorption sheet 12 in the removal area | region 56 are directly adhere | attached with the moisture-proof sheet | seat 14 through the hard contact bonding layer 13 like FIG.
The hard adhesive layer 13 covers the power supply regions 32 and 33 beyond the end surfaces of the functional layer 5, the second electrode layer 6, and the inorganic sealing layer 21, and the first electrode layer 3 in the removal region 56. In direct contact. That is, a hard resin connecting portion 61 is formed in which a part of the hard adhesive layer 13 and the first electrode layer 3 in the removal region 56 are directly connected, and the hard resin connecting portion 61 continuously extends outside the light emitting region 30. Surrounding.

At this time, a part of the gas adsorbing sheet 12 located in the light emitting region 30 is not covered with the hard adhesive layer 13. That is, when the moisture-proof sheet 14 is peeled off, an opening of the hard adhesive layer 13 from which the gas adsorbing sheet 12 is exposed is formed as shown in FIG. The area of the opening is slightly larger than the area of the light emitting region 30. The area of the opening is 90% to 99% of the area of the gas adsorbing sheet 12, and is preferably 95% to 98%.
The predetermined temperature T1 at this time is a temperature at which the hard adhesive layer 13 is cured, and is 60 degrees Celsius or more and 100 degrees Celsius or less.
When the temperature is less than 60 degrees Celsius, the moisture in the hard adhesive layer 13 is not sufficiently evaporated, and there is a possibility that moisture remains inside. Moreover, it takes time to harden the hard adhesive layer 13, and the production efficiency may be reduced. If the temperature is higher than 100 degrees Celsius, the temperature is too high and the organic EL element 20 may be adversely affected.

Thereafter, as shown in FIG. 1, the conductive portions are electrically connected to the power supply portions 35 and 36 where a part of the first electrode layer 3 in the power supply region 32 and a part of the first electrode layer 3 (isolated portion 50) in the power supply region 33 are exposed. The power supply members 16 and 17 are attached by the adhesive material 15.
At this time, the conductive adhesive 15 to be used is not particularly limited as long as it has an adhesive function and conductivity. For example, an anisotropic conductive film (AFC), low-temperature solder, or the like can be adopted.

  In this way, the organic EL device 1 is completed.

Next, the flow of current when an external power source is connected to the organic EL device 1 will be described.
In the description here, the case where the positive electrode of the external power supply is attached to the power supply member 16 and the negative electrode of the external power supply is attached to the power supply member 17 as shown in FIG.

The current transmitted from the external power source to the power supply member 16 is transmitted to the first electrode layer 3 in the power supply region 32 through the conductive adhesive 15 as shown in FIG. The current transmitted to the first electrode layer 3 is diffused to the first electrode layer 3 in the light emitting region 30 while being assisted by the second electrode layer 6 filled in the auxiliary electrode connection groove 43 in the first electrode layer 3. .
At this time, the current flow in the vicinity of the auxiliary electrode connection groove 43 will be described. Since the second electrode layer 6 has a higher conductivity than the first electrode layer 3, a part of the current is obtained as shown in FIGS. It diffuses evenly through the power supply region 32 and the first electrode layer 3 in the light emitting region 30 through a part of the second electrode layer 6 in the auxiliary electrode connection groove 43. Therefore, current unevenness hardly occurs in the first electrode layer 3 in the light emitting region 30. The current is not transmitted to the first electrode layer 3 in the shape display region 29 because it is insulated by the shape display groove 49.
The current transmitted to the first electrode layer 3 in the light emitting region 30 passes through the functional layer 5 and reaches the second electrode layer 6 in the light emitting region 30 as shown in FIG. At this time, voltage is applied to the functional layer 5 and the light emitting layer in the functional layer 5 emits light. At this time, since the current is diffused evenly as described above, a voltage is evenly applied to the light emitting layer in the functional layer 5 and light is emitted without unevenness in luminance.
The current that has reached the second electrode layer 6 in the light emitting region 30 diffuses in the second electrode layer 6 as shown by the thick arrow in FIG. 24 and is transmitted to the second electrode layer 6 in the power feeding region 33, as shown in FIG. Thus, it reaches the isolated portion 50 via the electrode connection groove 41. The current reaching the isolated portion 50 is transmitted to the power supply member 17 through the conductive adhesive 15 and returns to the external power source.
As described above, the organic EL element 20 in the light emitting region 30 emits light, and the organic EL element 20 in the shape display region 29 does not emit light. Therefore, light and shade can be formed between the light emitting region 30 and the shape display region 29 at the time of lighting.

Next, how the organic EL device 1 looks when it is turned off and when it is turned on will be described.
First, the case of turning off the light will be described.
When the organic EL device 1 is turned off, both the substrate 2 and the first electrode layer 3 have translucency, so that the color of the second electrode layer 6 is projected onto the light extraction surface of the substrate 2. That is, as shown in FIG. 26A, at least in the light emitting region 30 and the shape display region 29, the color of the second electrode layer 6 is reflected on the light extraction surface and becomes the same color. Therefore, it is possible to make it difficult for the user to understand the boundary between the light emitting region 30 and the shape display region 29, and it is possible to have a change compared to when the light is turned on. In other words, it is possible to impress the display shape at the time of lighting more, and as a result, the design can be improved.

Next, the state at the time of lighting will be described.
When the organic EL device 1 is lit, as shown in FIG. 26B, the organic EL element 20 in the light emitting region 30 emits light, and the organic EL element 20 in the shape display region 29 does not emit light. Therefore, on the light extraction surface of the substrate 2, light and dark appear clearly in the light emitting region 30 and the shape display region 29, and the boundary is clearly seen. In other words, the outline of the shape display area 29 is clearly copied. Therefore, according to the organic EL device 1, a shape such as a characteristic figure can be displayed and accented.

  Since the organic EL device 1 of the present embodiment displays a desired shape by the shape display groove 49 formed by laser scribing, the outline of the shape can be clearly seen and the organic in the vicinity of the shape display groove 49 can be seen. Deterioration of the EL element 20 is unlikely to occur, and problems such as leakage do not occur.

The organic EL device 1 according to this embodiment includes a second inorganic sealing layer 8 formed by a dry method on a first inorganic sealing layer 7 formed by a dry method, and a third inorganic seal formed by a wet method. The stop layer 9 is laminated in this order.
Here, since the third inorganic sealing layer 9 is formed by a wet method, gas may be generated when the third inorganic sealing layer 9 is not sufficiently dried.
Therefore, in the soaking sheet 10 of the present embodiment, the gas flow holes 25 are located on the third inorganic sealing layer 9. Therefore, the gas generated from the third inorganic sealing layer 9 can be caused to flow toward the gas adsorbing sheet 12 through the gas flow holes 25 for reasons such as heat generation.
Further, if the second inorganic sealing layer 8 is not formed, it will be described later. In the present embodiment, the third inorganic sealing layer 9 is formed of polysilazane dissolved in an organic solvent. Comes into contact with the functional layer 5 containing an organic substance via the second sealing layer connection groove 48 and the shape display groove 49. When the organic solvent comes into contact with the functional layer 5, the organic substance in the functional layer 5 is dissolved in the organic solvent, and the functional layer 5 does not emit light.
Therefore, in the organic EL device 1 of the present embodiment, the second sealing layer connection groove 48 and the shape are filled by filling the second sealing layer connection groove 48 and the shape display groove 49 with the second inorganic sealing layer 8. It is possible to prevent the functional layer 5 from being exposed to the organic solvent that is a part of the raw material of the third inorganic sealing layer 9 through the display groove 49.
Furthermore, the organic EL device 1 of the present embodiment includes a soaking sheet 10 having a gas flow hole 25 on a third inorganic sealing layer 9 formed by a wet method, a soft adhesive layer 11 that is a porous body, a gas The gas adsorbing sheet 12 that is an adsorbent is placed in this order, and a gas flow path is formed so that the gas passes through the gas flow hole 25 and the soft adhesive layer 11 and reaches the gas adsorbing sheet 12. 3 Even if gas is generated in the inorganic sealing layer 9, there is no problem that the moisture-proof sheet 14 is lifted.

The organic EL device 1 according to the present embodiment has a first sealing layer connection groove 45 formed outside the first sealing layer connection groove 44, and further a second sealing layer connection groove 48 formed outside the first sealing layer connection groove 44. Yes.
That is, the first inorganic sealing layer 7 and the second sealing layer connection groove 48 filled in the first sealing layer connection grooves 44 and 45 block the ingress of water or the like in the surface direction. Water or the like can be prevented from being transmitted to the organic EL element 20 in the light emitting region 30 located on the inner side (center side).

Finally, the configuration of each layer of the organic EL device 1 will be described.
In the organic EL device 1, the first electrode layer 3, the functional layer 5, and the second electrode layer 6 are laminated in this order on the main surface of the substrate 2 as described above, and sealed with the inorganic sealing layer 21 from above. It has stopped. Further, the soaking sheet 10, the soft adhesive layer 11, and the gas adsorbing sheet 12 are placed on the inorganic sealing layer 21 and fixed by the hard adhesive layer 13. Further, a moisture-proof sheet 14 is placed on the gas adsorbing sheet 12, and the organic EL element 20 is sealed with the hard adhesive layer 13.

The board | substrate 2 has translucency and insulation, Specifically, soda-lime glass, an alkali free glass, etc. are employable.
The substrate 2 has a planar shape. Specifically, it is polygonal or circular, and is preferably square. In this embodiment, a rectangular glass substrate is employed.
The average thickness of the substrate 2 is preferably 0.1 mm or more and 2 mm or less, and more preferably 0.1 mm or more and 1 mm or less.

The material of the first electrode layer 3 is not particularly limited as long as it is transparent and has conductivity. For example, indium tin oxide (ITO), indium zinc oxide (IZO), oxidation Transparent conductive oxides such as tin (SnO ₂ ) and zinc oxide (ZnO) are employed. ITO or IZO, which has high transparency, is particularly preferable in that light generated from the light emitting layer in the functional layer 5 can be effectively extracted. In this embodiment, ITO is adopted.

  The functional layer 5 is a layer provided between the first electrode layer 3 and the second electrode layer 6 and having at least one light emitting layer. The functional layer 5 is composed of a plurality of layers mainly made of organic compounds. The functional layer 5 can be formed of a known material such as a low molecular dye material or a conjugated polymer material used in a general organic EL device. In addition, the functional layer 5 may have a multilayer structure including a plurality of layers such as a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer.

The material of the 2nd electrode layer 6 is not specifically limited, For example, metals, such as silver (Ag) and aluminum (Al), are mentioned. The second electrode layer 6 of this embodiment is made of Al. These materials are preferably deposited by sputtering or vacuum evaporation.
In addition, the electrical conductivity and thermal conductivity of the second electrode layer 6 are larger than those of the first electrode layer 3. In other words, the second electrode layer 6 has higher electrical conductivity and thermal conductivity than the first electrode layer 3.

As shown in FIG. 2, the inorganic sealing layer 21 includes a first inorganic sealing layer 7 formed by a dry method from the organic EL element 20 side, a second inorganic sealing layer 8 formed by a dry method, and a wet method. A third inorganic sealing layer 9 is formed by laminating in this order.
The first inorganic sealing layer 7 and the second inorganic sealing layer 8 are layers formed by chemical vapor deposition, and more specifically, layers formed by plasma CVD using silane gas, ammonia gas, or the like as a raw material. It is. Since the first inorganic sealing layer 7 and the second inorganic sealing layer 8 can be formed continuously in the process of forming the organic EL element 20 in an atmosphere with a low moisture content in the manufacturing process of the organic EL device 1, Films can be formed without being exposed to air or water vapor, and the occurrence of initial dark spots immediately after use can be reduced.
The material of the first inorganic sealing layer 7 and the second inorganic sealing layer 8 is formed of a silicon alloy including one or more elements selected from oxygen, carbon, and nitrogen and a silicon element. It is particularly preferable to use silicon nitride or silicon oxide containing a bond such as Si—O, Si—N, Si—H, or N—H, or silicon oxynitride that is an intermediate solid solution of both.

The third inorganic sealing layer 9 is a layer formed through a chemical reaction after applying a liquid or gel material. More specifically, the third inorganic sealing layer 9 is made of silica having denseness. The third inorganic sealing layer 9 is preferably made from a polysilazane derivative. When the third inorganic sealing layer 9 is formed by silica conversion using a polysilazane derivative, a weight increase occurs during silica conversion and the volume shrinkage is small. Further, it is possible to make cracks sufficiently at a temperature that the resin can withstand when the silica film is converted (solidified).
Here, the polysilazane derivative is a polymer having a silicon-nitrogen bond, such as SiO ₂ , Si ₃ N _{4 made of} Si—N, Si—H, N—H, etc., and a ceramic such as an intermediate solid solution SiOxNy of both. It is a precursor polymer. The polysilazane derivative also includes a derivative in which a hydrogen part bonded to Si is partially substituted with an alkyl group or the like.
Among the polysilazane derivatives, perhydropolysilazane in which all side chains are hydrogen, and derivatives in which a hydrogen part bonded to silicon is partially substituted with a methyl group are particularly preferable.

  Moreover, it is preferable to apply and use this polysilazane derivative in the solution state melt | dissolved in the organic solvent. As the organic solvent to be dissolved, hydrocarbon solvents such as aliphatic hydrocarbons, alicyclic hydrocarbons and aromatic hydrocarbons, ethers such as halogenated hydrocarbon solvents, aliphatic ethers and alicyclic ethers can be used. .

  Thus, the 3rd inorganic sealing layer 9 laminates the material different from the 1st inorganic sealing layer 7 and the 2nd inorganic sealing layer 8 as a sealing layer, and complements a mutual defect. As a result, the sealing performance can be improved, the generation of new dark spots over time can be prevented, and the expansion of the generated dark spots can be suppressed.

The soaking sheet 10 is a sheet-like member having a soaking function, and has a plurality of gas flow holes 25 as described above.
As shown in FIG. 20, the gas flow hole 25 is a through-hole penetrating in the member thickness direction of the soaking sheet 10 and is a rectangular slit whose opening shape extends linearly.
The gas flow holes 25 are evenly distributed in the surface of the soaking sheet 10.

  The long side (maximum external dimension) of the opening of the gas circulation hole 25 is preferably 1 mm or more and 10 mm or less, and more preferably 2 mm or more and 5 mm or less. If the long side of the gas flow hole 25 is less than 1 mm, the gas may not be sufficiently discharged, and if the long side of the gas flow hole 25 is greater than 10 mm, foreign matter is likely to be mixed.

In the soaking sheet 10, a plurality of gas flow holes 25 are distributed vertically and horizontally according to a predetermined rule.
Specifically, as shown in FIG. 20, the soaking sheet 10 has a vertical flow group 26 in which a plurality of gas flow holes 25a are arranged in the vertical direction l (longitudinal direction) and a plurality of gas flow holes 25b in the horizontal direction w ( And a horizontal flow group 27 arranged in a direction perpendicular to the vertical direction.
The vertical flow groups 26 are arranged at predetermined intervals between the gas flow holes 25a so as to cross the entire heat equalizing sheet 10 in the vertical direction l, and the long sides of the gas flow holes 25a are on the same straight line. Are lined up. That is, each gas flow hole 25a forming the vertical flow group 26 is discontinuous and independent.
The distance between adjacent gas flow holes 25a (distance between the closest parts) is preferably greater than 0 mm and not greater than 7 mm, and more preferably not less than 3 mm and not greater than 6 mm.

The horizontal flow groups 27 are arranged at predetermined intervals between the gas flow holes 25b so as to cross the entire heat equalizing sheet 10 in the horizontal direction w, and the long sides of the gas flow holes 25b are on the same straight line. Are lined up. That is, each gas circulation hole 25b that forms the lateral circulation group 27 is discontinuous and independent.
The interval between adjacent gas flow holes 25b (distance between the closest parts) is preferably greater than 0 mm and not greater than 7 mm, and more preferably not less than 3 mm and not greater than 6 mm.
As described above, the gas flow holes 25a forming the vertical flow group 26 and the gas flow holes 25b forming the horizontal flow group 27 are in a crossing relationship with each other.

In addition, a straight line connecting the two adjacent gas flow holes 25b in the horizontal flow group 27 passes through the interval between the two adjacent gas flow holes 25a in the vertical flow group 26. A straight line connecting the two adjacent gas flow holes 25 a in the vertical flow group 26 passes through the interval between the two adjacent gas flow holes 25 b in the horizontal flow group 27.
In the present embodiment, the gas flow holes 25 b that form the horizontal flow group 27 are located in the interval between the two adjacent gas flow holes 25 a in the vertical flow group 26, and the adjacent 2 in the horizontal flow group 27. The gas flow holes 25a that form the vertical flow group 26 are located in the interval between the two gas flow holes 25b.
The interval between the vertical flow groups 26 and 26 adjacent to each other in the horizontal direction w is preferably 1 mm or more and 10 mm or less, and more preferably 2 mm or more and 5 mm or less.
The distance between the lateral flow groups 27 and 27 adjacent to each other in the longitudinal direction l is preferably 1 mm or more and 10 mm or less, and more preferably 2 mm or more and 5 mm or less.

The average thickness of the soaking sheet 10 is 20 μm or more and 200 μm or less, and preferably 20 μm or more and 100 μm or less. If the average thickness of the soaking sheet 10 is larger than 1 mm, the thickness is too thick and the feature that the organic EL device 1 is thin cannot be fully utilized.
The soaking sheet 10 preferably has a thermal conductivity of 200 W / m · K or higher, more preferably 390 W / m · K or higher, at a temperature of 300K.
Since the thermal conductivity of the soaking sheet 10 is as high as 200 W / m · K or more, the soaking can be sufficiently soaked.
The soaking sheet 10 preferably has a linear expansion coefficient at a temperature of 300 K of −2 ppm / K or more and 24 ppm / K or less, more preferably −2 ppm / K or more and 18 ppm / K or less, and 3 ppm / K. More preferably, it is 13 ppm / K or less.
Specifically, aluminum, copper, graphite or the like can be used for the soaking sheet 10. Among them, in the present embodiment, the soaking sheet 10 is formed of graphite that is light and has high thermal conductivity.

When the eyes are moved to the soft adhesive layer 11, the soft adhesive layer 11 is a layer that has flexibility and undergoes plastic deformation or elastic deformation under predetermined conditions. In the present embodiment, when the soft adhesive layer 11 receives a compressive stress or the like of the inorganic sealing layer 21, the soft adhesive layer 11 can be plastically deformed almost against the stress.
The shore hardness of the soft adhesive layer 11 according to JIS K 6253 is such that the Shore hardness is A30 or more and A70 or less, preferably A40 or more and A65 or less, and more preferably A45 or more and A63 or less.
When the shore hardness of the soft adhesive layer 11 is larger than A70, the rigidity of the soft adhesive layer 11 is too large to absorb the swelling and impact sufficiently. In addition, when adopting, for example, a sheet having low rigidity as the soaking sheet 10, if the shore hardness of the soft adhesive layer 11 is smaller than A30, the rigidity of the soft adhesive layer 11 is too small and the shape of the soaking sheet 10 is reduced. Cannot be maintained.
The flexural modulus of the soft adhesive layer 11 is preferably 3 MPa or more and 30 MPa or less, more preferably 3 MPa or more and 25 Pa or less, and particularly preferably 3.9 MPa or more and 23 MPa or less.

  Specific materials for the soft adhesive layer 11 include acrylic rubber (ACM), ethylene propylene rubber (EPM, EPDM), silicone rubber (Q), butyl rubber (IIR), styrene-butadiene rubber (SBR), and butadiene rubber (BR). ), Fluoro rubber (FKM), nitrile rubber (NBR), isoprene rubber (IR), urethane rubber (U), chlorosulfonated polyethylene (CSM), epichlorohydrin rubber (CO, ECO), chloroprene rubber (CR), etc. One or more materials selected from acrylic rubber-based resins, ethylene-propylene rubber-based resins, silicone rubber-based resins, and butyl rubber-based resins can be used, although they have a certain water vapor barrier property and are available at low cost. But, among them, butyl, which is easily available as a film Beam-based resin is more preferable.

  In addition, the soft adhesive layer 11 of the present embodiment has adhesiveness, and a plurality of members can be bonded to each other. Specifically, the soft adhesive layer 11 of the present embodiment is a sheet-like or plate-like member, and the surface is subjected to adhesive processing.

  The gas adsorbing sheet 12 is a sheet-like member having gas adsorbing properties. The gas adsorbing sheet 12 is not particularly limited as long as it can absorb the gas generated from the third inorganic sealing layer 9. For example, magnesium sulfate, aluminum oxide, calcium chloride, calcium hydride, A known drying agent such as calcium oxide, calcium sulfate, potassium hydride, silica gel, copper sulfate, magnesium oxide, magnesium perchlorate, molecular sieve, etc. and a known carrier having a large surface area such as zeolite, diatomaceous earth, bentonite, etc. Can be used.

The hard adhesive layer 13 is a harder material having higher rigidity than the soft adhesive layer 11. Specifically, the shore hardness (and the corresponding approximate value of the flexural modulus) of the hard adhesive layer 13 according to JIS K 6253 is preferably Shore A80 or higher, that is, Shore D30 or higher (25 MPa or higher). From the viewpoint of providing a highly reliable organic EL device, Shore D55 or higher (250 MPa or higher), Shore D95 or lower (6000 MPa or lower) is more preferable, Shore D80 or higher (1500 MPa or higher), Shore D90 or lower (4000 MPa or lower) More preferably.
Moreover, the hard adhesive layer 13 of this embodiment has waterproofness and adhesiveness, and a plurality of members can be bonded to each other. Specifically, the hard adhesive layer 13 of the present embodiment is formed by solidifying a solution or gel fluid.
As a specific material of the hard adhesive layer 13, a thermosetting resin can be adopted. In the present embodiment, an epoxy resin is adopted among the thermosetting resins.

The moisture-proof sheet 14 is a sheet-like member having moisture resistance. The moisture-proof sheet 14 is not particularly limited as long as it has moisture-proof properties. For example, an aluminum thin film formed by a rolling process can be employed.
The average thickness of the moisture-proof sheet 14 is preferably 1 μm or more and 15 μm or less.

  In the above-described embodiment, the shape display groove 49 is formed by removing over the first electrode layer 3, the functional layer 5, the second electrode layer 6, and the first inorganic sealing layer 7. However, the present invention is not limited to this, and it is sufficient that at least one of the first electrode layer 3 and the second electrode layer of the organic EL element 20 in the light emitting region 30 can be separated. For example, only the first electrode layer 3 may be separated as shown in FIG. 27 to form the shape display groove 70, or the second electrode layer 6 and the first inorganic sealing layer 7 may be separated as shown in FIG. The shape display groove 71 may be used. 29, only the second electrode layer 6 may be separated and used as the shape display groove 72, or the organic EL element 20 may be separated and used as the shape display groove 73 as shown in FIG.

  In the above-described embodiment, the electrode auxiliary portions 62 and 63 are formed by the auxiliary electrode connection grooves 42 and 43. Therefore, the electrode auxiliary portions 62 and 63 are continuous, but the present invention is not limited to this. The electrode auxiliary portions 62 and 63 may be discontinuous. For example, it may be dot-shaped.

  In the above-described embodiment, the soft adhesive layer 11 is interposed between the soaking sheet 10 and the gas adsorbing sheet 12, but the present invention is not limited to this, and the third inorganic sealing layer 9 and the soaking sheet 9 are soaked. A soft adhesive layer 11 may be interposed between the heat sheets 10.

  In the embodiment described above, the shape display area 29 has a quadrangular shape. However, the present invention is not limited to this, and may be a star shape as shown in FIG. 31, for example.

1 Organic EL device 2 Substrate (base material)
3 First electrode layer 5 Functional layer (organic light emitting layer)
6 Second electrode layer 7 First inorganic sealing layer (first sealing layer)
8 Second inorganic sealing layer (second sealing layer)
9 Third inorganic sealing layer (third sealing layer)
21 Inorganic sealing layer (sealing layer)
29 shape display area 30 light emitting area 31 outer peripheral non-light emitting area 42, 43 auxiliary electrode connecting groove 44, 45 first sealing layer connecting groove (sealing layer connecting portion)
49, 70, 71, 72, 73 Shape indication groove (insulation groove)
61 Hard resin connection 62, 62 Auxiliary electrode

Claims (5)

A cross-sectional structure having a laminate including a first electrode layer, an organic light emitting layer, and a second electrode layer in order on the main surface of the base material, and when the base material is viewed in plan, a predetermined structure is obtained during driving. In an organic EL device having a shape display region for displaying a shape and a light emitting region that emits light during driving,
The light emitting region is formed to be continuous with the shape display region and surround the shape display region,
Having an insulating groove from which at least one of the first electrode layer and the second electrode layer is removed;
The insulating groove is formed at the boundary between the shape display region and the light emitting region, and is continuous over the entire circumference of the light emitting region .
The insulating groove is formed by removing at least the first electrode layer, the organic light emitting layer, and the second electrode layer,
The laminate is covered with a sealing layer,
A part of the sealing layer is filled in the insulating groove,
The sealing layer includes a laminated structure in which a first sealing layer and a second sealing layer are stacked from the substrate side,
The insulating groove is formed by further removing the first sealing layer,
An organic EL device, wherein a part of the second sealing layer is filled in the insulating groove . The sealing layer includes a third sealing layer on the outside of the laminated structure as viewed from the base material side,
The first sealing layer and the second sealing layer are formed by a dry method,
The organic EL device according to claim 1 , wherein the third sealing layer is formed by a wet method. A cross-sectional structure having a laminate including a first electrode layer, an organic light emitting layer, and a second electrode layer in order on the main surface of the base material, and when the base material is viewed in plan, a predetermined structure is obtained during driving. In an organic EL device having a shape display region for displaying a shape and a light emitting region that emits light during driving,
The light emitting region is formed to be continuous with the shape display region and surround the shape display region,
Having an insulating groove from which at least one of the first electrode layer and the second electrode layer is removed;
The insulating groove is formed at the boundary between the shape display region and the light emitting region, and is continuous over the entire circumference of the light emitting region.
The insulating groove is formed by removing at least the first electrode layer, the organic light emitting layer, and the second electrode layer,
The laminate is covered with a sealing layer,
A part of the sealing layer is filled in the insulating groove,
When the substrate is viewed in plan, it has a peripheral non-light emitting region,
The outer periphery non-light emitting region is formed so as to surround the light emitting region,
In the outer peripheral non-light-emitting region, the sealing layer and the first electrode layer have a sealing layer connection portion in direct contact,
The sealing layer connections are organic EL device you characterized in that it is formed so as to surround the light emitting region. A cross-sectional structure having a laminate including a first electrode layer, an organic light emitting layer, and a second electrode layer in order on the main surface of the base material, and when the base material is viewed in plan, a predetermined structure is obtained during driving. In an organic EL device having a shape display region for displaying a shape and a light emitting region that emits light during driving,
The light emitting region is formed to be continuous with the shape display region and surround the shape display region,
Having an insulating groove from which at least one of the first electrode layer and the second electrode layer is removed;
The insulating groove is formed at the boundary between the shape display region and the light emitting region, and is continuous over the entire circumference of the light emitting region.
The insulating groove is formed by removing at least the first electrode layer, the organic light emitting layer, and the second electrode layer,
The laminate is covered with a sealing layer,
A part of the sealing layer is filled in the insulating groove,
When the substrate is viewed in plan, it has a peripheral non-light emitting region,
The outer periphery non-light emitting region is formed so as to surround the light emitting region,
In the outer peripheral non-light emitting region, a hard resin is laminated on the sealing layer,
Furthermore, a portion of the hard resin has a hard resin connection portion that is in direct contact with the first electrode layer,
The hard resin connecting portion organic EL device characterized in that it is formed so as to surround the light emitting region. A cross-sectional structure having a laminate including a first electrode layer, an organic light emitting layer, and a second electrode layer in order on the main surface of the base material, and when the base material is viewed in plan, a predetermined structure is obtained during driving. In an organic EL device having a shape display region for displaying a shape and a light emitting region that emits light during driving,
The light emitting region is formed to be continuous with the shape display region and surround the shape display region,
Having an insulating groove from which at least one of the first electrode layer and the second electrode layer is removed;
The insulating groove is formed at the boundary between the shape display region and the light emitting region, and is continuous over the entire circumference of the light emitting region.
The second electrode layer is higher in electrical conductivity than the first electrode layer,
When the substrate is viewed in plan, it has a peripheral non-light emitting region,
The outer periphery non-light emitting region is formed so as to surround the light emitting region,
In the outer peripheral non-light emitting region, the first electrode layer and the second electrode layer have an electrode auxiliary portion in direct contact,
The electrode auxiliary part, when viewed in plan said substrate, you characterized in that it is formed so as to surround the 80 percent or more of the regions of the entire circumference of the light emitting region organic EL device.

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