TW201244208A - Light emitting device - Google Patents

Abstract

A light emitting device of the present embodiment comprises a first substrate, an organic EL element, a second substrate, a junction portion and a drying member. The organic El element comprises a light emitting portion for emitting light. The organic El element is formed at one surface of the first substrate. The second substrate is disposed oppositely to the foresaid surface of the first substrate. The second substrate is constituted to form a space, between it and the first substrate, for receiving the light emitting portion. The junction portion is formed in a frame shape of surrounding the light emitting portion. The junction portion is constituted to join the surface of the second substrate opposite to the first substrate with the foresaid surface of the first substrate. The drying member is disposed in the way of keeping from contact with the light emitting portion at an outer edge of an area surrounded by the junction portion on the surface opposite to the second substrate.

Description

201244208 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a light-emitting device. [Prior Art] Conventionally, as shown in Fig. 16, an organic electroluminescence (el) element having a substrate 201, an organic EL structure 202 formed on a substrate 201, and a sealing plate 203 to cover The organic EL structure 202 is disposed at a predetermined interval (refer to Japanese Laid-Open Patent Publication No. 2000-277254). In the organic EL device, the sealing plate 203 is adhered and fixed by the adhesive 204. On the substrate 201, the organic EL element is designed to suppress the deterioration of the occurrence of black spots over time, and the like, and the polycrystalline oxide resin and the drying are disposed in the concave portion formed on the inner surface side of the sealing plate 203. In the organic EL element constructed as shown in Fig. 16, when the organic EL element is operated, there is a pressing force on the sealing plate 2〇3 and the sealing plate 2〇3 is concavely inward (organic EL) When the structure 202 is convex and is bent, and the mixture 205 is in contact with the organic EL structure 2〇2, there is a concern that the organic EL structure 202 is incapable of emitting light. [Summary of the Invention] ^本Invention department For the above reasons, the developer aims to provide a light-emitting device capable of improving reliability. The light-emitting device of the first aspect includes a substrate, an organic element, a second substrate, a joint portion, and a drying member. The organic cerium 4 has a radiation (four). The front surface of the EL element is on the front surface, and the second substrate is disposed to face the surface of the first substrate. The second substrate is formed. For the above mentioned base 4/35

(4) The light-emitting part of (4) is formed between 201244208. The bonding portion is formed in a frame shape surrounding the light emitting portion. The bonding portion is configured to bond the opposing surface of the first plate n! substrate i to the first substrate "the two surfaces. (4) The drying member is disposed on the opposite side of the second substrate so as not to contact the light emitting portion. In the light-emitting device according to the second aspect of the present invention, the light-emitting portion of the first aspect is located at the center of the joint portion. In the light-emitting device according to the third aspect of the invention, the second substrate having the ρ or the first aspect has a polygonal recess in the opposing surface. The recess is parallel to the surface of the first substrate. _ has a periphery around the aforementioned light 4. The second substrate is joined to the second substrate by a joint portion in the periphery of the recess of the opposite surface. The dry part is disposed in the uranium In the light-emitting device according to the fourth aspect of the present invention, the corner portion of the third aspect has a predetermined inner corner. The dry member is formed into a shape having an angle equal to the predetermined inner angle. The illuminating device of the fifth aspect of the present invention In the middle, the front drying member of the fourth aspect is arranged such that the two sides defining the angle and the two sides defining the predetermined inner angle are opposed to each other and are parallel to each other. In the light-emitting device according to the seventh aspect of the present invention, the first drying device is placed at each of the corners of the bottom surface of the recess. The drying member of the sixth embodiment has a higher infrared absorption rate than the second substrate. 5/35 201244208 [Embodiment] Hereinafter, the light-emitting device of the present embodiment will be described based on the drawings to FIG. A. The organic EL element 2 including the element substrate (the organic disorder element module is formed on the upper surface side of the light-transmitting substrate i and the light-transmitting substrate i); and the cover substrate 5 and the shell The above-mentioned surface side of the (b) substrate 1 is opposed to and via the joint element substrate; 3..* is joined to the step Α with the heat equalizing plate 6 (see FIGS. 3 to 8), Α configuration On the opposite side of the side of the organic EL element 2 on the side of the ruthenium substrate 5." Here, the cover substrate 5 is attached to the element A recess 51' is formed on the lower surface of the opposite surface of the substrate 3, and the cover substrate 5 is joined to the element substrate 3 by the peripheral portion of the recess 5 of the entire circumference. The recess 51 is in the plane parallel to the above-surface of the disc = ^ In the embodiment, the recess 51 is formed in a rectangular shape. In the light-emitting device, the light-emitting portion of the organic EL element 2 is placed on the substrate and the recording board 5 and the bonding. Part of the space (storage space) 8. In the case of the scareness of the 彡 虱袷 虱袷 , , , , , , , , , 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽The hairline is provided with a second substrate (transparent member 2, second substrate 5, and bonding portion 4. The organic portion a luminescent portion 2b that emits light. Organic chaos m on the surface. The second substrate 5 is disposed to be separated from the 6th/35th, and Erlang: opposite. The second to fifth embodiments are configured to form a space 8 between the first substrate 1 and the light-emitting portion 2G. The joint is formed into a frame of 201244208. The joint portion 4 is configured to bond the second substrate 5 to the first surface of the first substrate 1 to the first surface. In the dry member of the cover substrate 5 and the wet member 7 of the transparent substrate 1 which is disposed on the light-emitting portion 2, the recess 51 and the drying member 7 are both open and dry. 7 is formed into a shape having an angle α2 equal to the inner angle ai prescribed by the recess 51 (see Fig. (a)). 7 1 2 ^5 , the lower edge is the outer edge of the region surrounded by the joint portion 4. In this case, the drying member 7 is placed in particular on the inner bottom surface of the recess 51 of the lid substrate 5. The drying member 7 has a function of absorbing moisture. The light-emitting device 本 of the present embodiment has four drying members 7. The four drying members 7 are disposed at four corners of the bottom surface of the recess 51, respectively. which is. The drying members 7 are respectively disposed at the corners of the bottom surface of the recess 51. In each of the drying members 7, the two sides 7b 72 for defining the angle α2 are disposed opposite to and parallel to the two sides 511, 512 for defining the inner angle α1 of the mosquito. The organic EL element 2 is as shown in FIGS. 3 to 8 and includes: The electrode 21' is formed on the above-mentioned surface of the light-transmitting substrate (the first substrate); the organic EL layer 22' is formed on the i-th electrode 21; and the second electrode is formed on the organic EL layer 22. The organic EL layer 22 contains a light-emitting layer formed using an organic material. In the present embodiment, the 'electrode EL element 2 includes the first electrode 2 disposed on the one surface side of the light-transmitting substrate 1 and composed of a transparent conductive film, and the organic EL layer 22 disposed on the first electrode 2 A light-emitting layer made of an organic material on the side opposite to the side of the light-transmitting substrate 1 and a second electrode 7/35 201244208 23' are disposed on the organic EL layer 22, and are made of a metal film. θ 22 is the opposite side of the first electrode 21 side, and the organic EL element 2 has the above-mentioned surface of the first end of the light-transmissive substrate and is electrically connected to the first! The second terminal portion 2 is electrically formed and electrically connected to the second electrode 23. 7 Upper surface of the upper surface In the present embodiment, the organic EL element 2 is provided with: The first electrode 2 is disposed on the first electrode 2, and the organic EL layer 22 Γ 2 ′ is disposed on the side of the light-emitting portion 2° and electrically connected to the second power 1 . The second electrode 23 is output from the second electrode 2 . The wiring 23b is electrically connected to the second terminal portion T2. The lead material provided has an auxiliary electrode 26 made of a material smaller than the first electrode 21, and is formed along the opposite side of the first electrode 2i plate 1 side and electrically connected to the first electrode 21. That is, the second ^^^^ is made of a material having a smaller specific resistance than the first "second auxiliary electrode 26. The electrode 26 is wound around and formed on the !! electrode electrode. 4 organic anal layer 22" The element 21 is provided with an insulating film 29 covering the auxiliary electrode % and the first electric and side edges on the light-transmissive substrate. The organic eL element 2 is formed by the auxiliary electrode 26 and the first electrode 21 of the insulating film m1. The second _ 23 ^ EL element 2 includes the insulating film 29, which is electrically insulated by the second electrode 2 and the auxiliary electrode 26. The first electric and the auxiliary electrode 26 are translucent along the electrode 21. 201244208 The entire circumference of the surface on the opposite side of the side is formed in a rectangular frame shape. It is not necessary to have a rectangular frame shape. If the auxiliary electrode 26 is electrically connected to 21, it may be partially open. The shape (for example, c-shape = u-shaped, etc.), or may be cut into a plurality of pieces. In the sub-U sub-organic EL element 2, in the case of reading the doll, in the thickness direction of the substrate The precursor substrate 1, the first electrode 2, the light-emitting layer and the first domain, and the upper light-emitting portion 2. The other region becomes the P-electrode 21, and the light-emitting layer (there is In the organic light-emitting element 2, the planar shape of the second electrode of the organic EL element 2 is made of a light-transmissive substrate 曰 t 卩 42 23 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 电极 有机1 = a square shape in the example. Therefore, the light-emitting portion (four) substrate 丨 is also small in a rectangular shape (in the example, the gas (four) auxiliary electrode 26 has a rectangular frame shape in a plan view shape (a frame shape is opened) Further, the insulating film 29 has a rectangular shape in a plan view (a square frame shape in the illustrated example). Among the 70 pieces 2, a predetermined τ 2 along the rectangular light-emitting portion 2G; The claws (in the example of FIG. 1 , m=2), the second terminal portion, the first terminal portion, and the first terminal portion τ1 are disposed such that the first portion T1 is located in the width direction of the second terminal portion T2. In the longitudinal direction of the translucent substrate 1, 2 = the second terminal portion η and the second terminal portion τ2 are provided at the respective ends. In the longitudinal direction of the light-transmitting substrate I, the end portion is 3 (four) 1 轩 了 】 】 透光 透光 透光 透光 透光 透光 透光 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且 且It In the second terminal portion Τ2β shell target configuration, the direction of the one of the transparent substrates 1 is a predetermined direction, and the substrate is in the direction of the flute of the through-substrate 1 The first end ten and the second terminal portion Τ2 are disposed at the respective end portions of the both end portions. Next, the =1 terminal portion D1 has a transparent conductive oxide layer 24 (to transparent conductive oxide layer 24). And a laminated structure of the metal layer 27 (hereinafter, also referred to as the 苐1 metal layer 27). The fm / sub-portion T2 has a transparent conductive oxide layer 25 (hereinafter also referred to as a 苐2 transparent conductive oxide layer 25). And a laminated structure of the metal layer Μ (hereinafter, the handle is also the second metal layer 28). Further, the planar shape of the heat equalizing plate 6 is formed in a rectangular shape (square shape in the illustrated example) which is smaller than the cover substrate 5 and larger than the light emitting portion 20. The components of the light-emitting device 做 will be described in detail below. In the light-emitting device 8, the other surface (the lower surface in Fig. 1(b)) of the light-transmitting substrate 1 is used as the light-emitting surface (light-emitting surface). Therefore, among the other surfaces of the optical substrate, the electrodes 2f and the organic electrodes; and the second and second electrodes 23 of the second and second electrodes 23 are repeated and the regions projected are the light-emitting surfaces. The flat-viewing wire of the light-transmitting substrate 1 is not limited thereto, and may be, for example, a square shape. The light-transmitting substrate 1 is formed of a material that can transmit light emitted from the organic EL element 2. In the present embodiment, a glass substrate can be used as the light-transmitting substrate 1', but the present invention is not limited thereto. For example, a plastic substrate can also be used. For example, a soda lime (s〇daHme) glass substrate, an alkali-free glass substrate or the like can be used as the glass substrate. Further, for example, polyethylene terephthalate (pET) 10/35 can also be used.

201244208 base =, polyphthalic acid naphthalene di g | (PEN) substrate, poly (pES) substrate, (PC) substrate, etc. as a plastic substrate. When a plastic substrate is used, it is also possible to form a film of si0N^, a leg film or the like on the surface of the plastic substrate to suppress the permeation of moisture. The light-transmitting substrate 1 preferably has a transmittance of 70% or more with respect to the light emitted from the organic EL element 2. When the glass substrate is used as the light-transmitting substrate 1 , the unevenness of the above-described surface of the light-transmitting substrate 1 may cause a leakage current or the like of the organic anion element 2 (the cause of deterioration of the organic EL element 2 is therefore used. In the case where the glass substrate is a snap-on substrate, it is preferable to form an element which is polished with high precision to form a substrate, and the surface roughness of the surface is reduced. The surface of the light-transmitting substrate 1 is In terms of the rough surface degree, it is preferable to set the arithmetic mean roughness Ra defined by IS B Zhan Side _ 4287_1997 to several millimeters or less. In the case where the plastic substrate is used as the light-transmitting substrate 1, the above-described table-arithmetic average roughness Ra can be made at a low cost even if the workpiece is polished with high precision. In the organic EL element 2, the first electrode 21 constitutes an anode, and the second electrode phantom constitutes a cathode. In the organic EL element 2, the organic EL layer 22 interposed between the second electrode 21 and the second electrode 23 is provided with a hole transport layer, the above-described light-emitting layer, electron transport layer, and electron layer in this order from the i-th electrode 21 side. . The laminated structure of the organic EL layer 22 described above is not limited to the above examples, for example, a single layer structure of the light emitting layer, or a laminated structure of the object light emitting layer and the electron transporting layer, or a layering of the hole transporting layer and the light emitting layer. Construction, or 11/35 201244208 illuminating layer and electron transport (4) laminated structure and hole transport layer can also be separated by a hole injection layer.帛1 electrode 21 and 'the luminescent layer can be a single-layer structure or a desired luminescent color is white. The second constitutive &°, for example, the green, blue, three kinds of dopants can also be doped in the t layer. The reddish, hole-transporting luminescent layer and the green electric poem [^ can also be a laminated structure of a fine k-color electroluminescent layer. == layer and red electron transport = color electrons are transmitted in a layered configuration with the red electron transporting light-emitting layer. If the first electrode 21 and the second electrode 23 are held, an electro-optical body is applied to the organic EL layer 22 having a light-emitting function. As the i-lighting unit, a multi-unit structure (that is, an i-th electrode 21 _ a plurality of light-emitting units in which the plurality of light-emitting units are repeatedly transmitted in the thickness direction) may be used to interleave a plurality of light-emitting units into a predetermined layer. And the second electrode 21 constituting the anode is an electrode for injecting a hole into the light, preferably a metal having a large work function, an alloy, a conductivity, or a mixture thereof. The electrode material is a material having a work function of 4 eV or more and 6 eV or less, so that the difference between the first electrode 21 and the HOMO (Highest Occupied Molecular 〇rbital) level is not excessive. For example, it may be doped with a conductive polymer such as Ting 0, tin oxide, oxidized metal, IZ 〇 (oxidized steel tin), molybdenum copper, PEDOT or polyaniline, and a receptor of any sound. Conductive enthalpy of conductive polymer, carbon nanotube, etc. The permeable material is used as the electrode material of the first electrode 21. Here, the first electrode 21 is formed by the (four) plating method, the vacuum vapor deposition method 12/35 201244208, or the like, and the above surface of the light-transmitting substrate i Further, the sheet resistance of the first electrode 21 is preferably less than or equal to or less than a few hundred Ω/s. Although it differs depending on the light transmittance of the second electrode 21, the sheet resistance, etc., it can be set to 5 nanometers or less, and the car father is not set in the range of 1 nanometer to 2 nanometers." Further, the second electrode 23 constituting the cathode is an electrode for injecting electrons into the light-emitting layer, and is preferably an electrode material composed of a metal having a small work function, an alloy, a conductive compound, and a mixture thereof, and has a function of For substances below 5 eV above eV, ^ is not too large for the position of the lower unoccupied knife rail. The sulphur, silver, magnesium, gold, copper, chromium, bismuth, palladium, tin, and indium are mentioned. Metal and other metallographic alloys, m-silver mixture, magnesium-indium-rolled alloy, and aluminum-lithium alloy are used as electrode materials. The genus 2 of the 2 electrode 23: a metal, a metal oxide, or the like, and these and other golds, for example, a laminated structure which can be converted by oxidation, which can be used for the formation of a good flow, and a bond made of a good one can be used. The electrode material of the photoelectrode 23 of eight is preferably a metal which is emitted by the light-emitting layer and has a low resistivity, preferably in the form of silver or silver. The material of the material can be used as the four materials for the organic electroluminescence device. For example, onion, Cai, Tuo, thick coumarin, oxazet, dibutadiene, tetraphenylbutadiene, -, and open 恶 恶, double stupid, cyclopentane Alkene, 13/35 201244208 Quinoline metal complex, tris(8-hydroxyquinoline)aluminum complex, tris(4-methyl•8-quinoline)aluminum complex, tris(5-phenyl_ 8_ quinoline) aluminum complex, aluminum porphyrin metal complex, benzoquinoline metal complex, tris(p-trisyl-4-yl)amine '1-aryl-2,5-di (2. fluorenyl) pyrrole derivative, π-pyran, quinacridone' rubrene, distyrylbenzene derivative, stilbene hydrocarbon (di=rylarylene) derivative, diphenylethylene amine The derivatives and various camping pigments and the like are represented by the above materials and derivatives thereof, but are not limited thereto. Feed 2 is preferably suitably mixed with the luminescent material selected from the compounds. Further, 'not only the use of the above-mentioned compound, but also a compound which exhibits a luminescent material such as a ray-emitting material from a rotating multi-state material, and a compound having a material in the molecule can be used. . Method: The luminescent layer composed of rtf 可 can be formed by the steaming method, the dry core silk film of the transfer temple, the wet process such as the village method, the sew method, the gravure printing method, etc. The material can be used in the so-called system or layer of metal oxides. m work function: 有机 ΓΓΓ 之 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机The astral amine (the metal oxide of the crane, the strontium, the zinc, and the human body is, for example, containing molybdenum, strontium, or a metal oxide containing a right z, which is a compound of the genus , for example, containing copper and tin, 14/35

S 201244208 A combination of zinc, agglomerate and gallium, a plurality of oxides of metals. , the sharp temple 3 has the above-mentioned any kind of gold transfer method and the like, and the hole injection layer can be formed by a steaming method, a coating method, a mold i; The spray is again formed by a wet process such as a hole iti printing method. set. Such compounds can be listed as = ” 女 女 ( ( (a_NPD), N, NK3^x 二二: (=) trisylamine (mt_), ΤΝΒ箄PD, snail (10), snail, sputum, Eight H green (four) compound, a hole-transporting material containing a group of amines. The material can be used in any conventional combination; the material used for the layer can be made of a group of electron transporting substances. Selected. The electron transporting material of this compound belongs to the q3 temple and is a tetracyclic derivative, a non-lin derivative, a bite derivative, a non-derivative, etc., but has a heterocyclic compound, but ('b, The electron transporting material of the known material can be selected from the material of the human body, and can be selected from the description of the gas to make the metal gasification of the gasification clock, gasification lock, etc.; And: metal halides such as metal chlorides represented by ==; Ming, _# Syrian, interesting, crane, Μ1 mesh m, L Erxi and other metal oxides, nitrides, carbides, such as oxygen She, magnesium oxide, iron oxide, nitriding, nitrogen, lining, sinus, sulphide, etc. as insulators, or 15/35 201244208 to Si F2, Si〇, etc. are represented by a hybrid, a carbon compound, etc. These materials can be formed into a film shape by a vacuum deposition method or a lining method, etc. Further, as a material for the lead wiring 23b, The same material as the second electrode 23. Here, the thickness of the 5 wiring 23b is set to be the same as that of the second electrode 23. Further, the lead wiring 23b is connected to the second electrode μ.

Then formed. Therefore, in the light-emitting device of the present embodiment, the lead wiring 23b and the second electrode 23 are simultaneously formed at the time of manufacture. The X-lead wiring 23b is extended to a portion which is formed inside the bonding region 25a which is joined to the bonding portion of the second transparent conductive oxide layer 25 of the second terminal portion T2. The dimension (wiring width) of the lead wiring 23b is set to a value smaller than the width dimension _ of the second terminal portion T2 to prevent short-circuiting with the $ terminal portion τ] and to ensure that there is a gap between the i-th terminal portion T1. The specified insulation distance. The width dimension of the lead wire 23b is preferably equal to or less than the width of the second terminal portion 2, but it is set to a value as large as possible in order to improve the f-migration. Further, the material of the first transparent conductive oxide layer 24 and the second transparent conductive oxide layer 25 is a transparent conductive oxide (10), such as Conductive Oxide: TCO, and for example, IT〇, AZ〇, Position, IZO, etc. Further, the materials of the first transparent conductive oxide layer 24 and the second transparent conductive oxide layer 25 are made of the same material as the electrode 21, and the first electrode 21 and the first transparent conductive oxide are The layer 24 and the second transparent conductive oxide layer 25 have the same thickness. Further, the material of the first metal layer 27 and the second metal layer 28 is preferably a metal such as aluminum, silver, gold, copper, chromium 'molybdenum, palladium, tin, lead or magnesium, 16/35.

S 201244208 or an alloy containing at least one of these metals. Further, the first metal layer 27 and the second metal layer 28 are not limited to a single layer structure, and a multilayer structure may be employed. For example, the first metal layer 27 and the second metal layer % may have a three-layer structure of a MoNb layer/AINd layer/MoNb layer. In the 3^ structure, the lower MoNb layer is preferably an underlying adhesion layer, and the upper M()Nb layer is set to a protective layer of the A-Nd layer. Further, in the present embodiment, the material of the first metal layer 27 and the material of the second metal layer 设为 are the same, and the first! The metal layer 27 and the second metal layer % # are the same thickness as the second metal layer 27 and the second metal layer ;%; the same material as the second electrode 23 is used for the wood. Further, as the material of the auxiliary electrode 26, for example, a metal such as aluminum, silver, t, tin, aluminum, or magnesium, or an alloy containing at least one kind of a metal is preferable. Further, the auxiliary electrode 26 is not limited to a single layer structure, and a multilayer structure may be employed.丄::Auxiliary:=26 can use layer material _ layer of 3 things:, upper == second layer of the secret layer is preferably set (4) The shield of the MoNb layer is set to the protective layer of the A1Nd layer. In the light-emitting device A of the present embodiment, the material of the second electrode layer 27 and the second metal layer 28 of the auxiliary electrode % are the same. Thereby, in the light-emitting device A of the forest & form, the system, the skin, and the second metal layer 27 and the second metal layer I are formed to be low. Cheng Zhi Bu, but not limited to 1 is: the material of the film 29 'for example', although the use of polyimine, in the description of the organic element ^, Μ f oxygen is only right between the month of the 23rd in the ancient ^ π 兀 2 The region in which the first electrode 21 and the second electrode portion 20 are separated by the second aperture 20 and the second aperture 20 are formed in the same manner as the shape of the inner circumference of the insulating film 29/35 201244208. It is rectangular (in the example of the figure, square). Here, the light-emitting device A is a non-light-emitting portion other than the light-emitting portion 20 of the organic EL element 2 in plan view. Further, a glass substrate can be used as the lid substrate 5, but is not limited thereto. For example, a plastic substrate can also be used. As the glass substrate, for example, a soda lime glass substrate or an alkali-free glass substrate can be used. Further, as the plastic substrate, for example, a polyethylene terephthalate (PET) substrate, a polybutylene terephthalate (PEN) substrate, a polyether fluorene (pES) substrate, or a polycarbonate (for example) may be used. Pc) substrate or the like. When a plastic substrate is used, a Si〇N film, a SiN film or the like may be formed on the surface of the plastic substrate to suppress the permeation of moisture. As the material of the glass substrate 5, it is preferable to use a light-transmitting substrate! The material having a small difference in the coefficient of linear expansion of the material is preferably reduced in the use of the difference in the linear expansion ratio from the viewpoint of the difference in the yield ratio of the glass substrate 5 and the transmissive core 1 * (four) stress. material. As described above, the lid substrate 5 is bonded to the element substrate 3 via the joint portion 4. Here, the interface between the joint portion 4 and the element substrate 3 is such that the joint portion 4 and the first end are already smashed by the whistle! Tian ^ ..

As the material of the joint portion 4, it is also possible to use a material such as ruthenium dioxide (alumina, etc.) to make the epoxy resin contain a filler (for example, a substance, a ruthenium, a gasification ruthenium, a diarrhea gelatin (silica). As a desiccant, it is preferably formed using a red drying member 7 such as a desiccant such as oxidized niobium or the like. Here, proud 18/35

S 201244208 The material whose external absorption rate is higher than that of the cover substrate 5. As the material of the soaking plate 6, the metal with high rate can be made of copper, heat == heat conduction can also make gold, blue steel 'brass (heartwood can also use metal _, _, _, gold ^ In the case of the heat-receiving plate 6, the light-emitting device of the present embodiment is arranged at a level of the circumference of the substrate 5 (the recess 51' is large and the substrate 3 is closed.至元二二:=二, 2 t exposed to the outside part is the part of each of the first:: #苐2, sub-part T2 by the layered structure of the i-th layer 7, but also The joint region 24a composed only of the joint portion 4_chemical layer 24 spans the entire length of the first terminal portion η in the circumferential direction in the width direction of the oxygen dioxide 2: ΓΡΤ 2 as described above, and has the second transparent guide == metal layer 28 as described above. The laminated structure 25a of the circumference 25 of the burial joint portion 4 may be "provided." The total length in the width direction of the 2-terminal 2 terminal portion T2 is _ _ _ _ _ _ _ _ The first interface is formed by the junction 4 of the portion 4 of the transparent conductive oxide layer 24 and the second interface of the second sub-portion T2 by the junction portion 4 and the second ^ 19/35 ^

S 201244208 is formed by the interface of the conductive oxide layer 25. As a result, in the light-emitting device A of the present embodiment, the bonding strength between the joint portion 4 and the first terminal portion T1 and the second terminal portion T2 can be improved, and f "T can be prevented from being in the first metal layer 27 and the second layer. The state of the first interface and the second interface changes when the metal layer 28 is oxidized with time. This improves reliability. In the light-emitting device A of the present embodiment, the heat-receiving plate 6 is provided, so that the temperature of the light-emitting portion 20 of the organic EL element can be uniformly heated, and the in-plane variation of the temperature of the light-emitting portion 20 can be reduced. In addition, the temperature rise of the organic EL element 2 in the light-emitting device A can be suppressed, and the input power can be increased to achieve high brightness. In the light-emitting device A of the present embodiment, the plane size of the light-emitting portion 20 is set to 80 x 80 mm. However, the present invention is not limited thereto. For example, it may be suitably set to a range of about 3 〇 X30 to 300 x 300 mm. In addition, the distance between the centers of the two first terminal portions ΤΙ and T1 disposed on the both sides in the width direction of the second terminal portion T2 is set to 3 mm. However, this value is merely an example, and is not particularly limited. Further, the thickness of the first electrode 21 is set to a range of from about n nm to about 3 nm. The thickness of the organic EL layer 22 is set to be in the range of about 150 nm to 300 nm, and the thickness of the second electrode 23 is set. The thickness of the insulating film 29 is set in the range of about 70 μm to about 1 μm, and the thickness of the auxiliary electrode 26, the first metal film 27, and the second metal film 28 is set in the range of about 70 nm to 300 nm. The range is from about 300 nm to about 600 nm, but these values are not particularly limited. 20/35

S 201244208 Further, in terms of the width of the auxiliary electrode 26, the larger the width, the lower the impedance of the auxiliary electrode 26, and the lower the in-plane variation of the luminance of the light-emitting portion 2 (), the area of the light-emitting portion increases and the beam decreases. It is small, so it is preferable to set the width in the range of about 0.3 to 3 mm. In the illuminating device of the present embodiment, in which a plurality of illuminating devices are used as the light source, the narrower the width of the auxiliary electrode 26 is, the smaller the lining between the adjacent illuminating portions 2 is, and the appearance is good. Moreover, the first terminal portion T1 and the second terminal portion 2 and the light-transmitting substrate! The distance of the circumference is set to 〇.2 (4), but the position is not limited. For example, it is preferably set to a range of about 2 mm. When the area of the non-light-emitting portion of the light-emitting device A is made small, the second terminal portion u and the second terminal portion T2 and the through-hole (four)-shaped rib are preferably formed, and the first terminal portion T1 and the first terminal portion T1 are When the second terminal portion Τ2 and other metal members (for example, the metal device body of the lighting fixture or the like) have a predetermined creeping distance therebetween, it is preferable to set the value to be longer than the creeping distance _. Age-related aspects A method of manufacturing the light-emitting device 本 according to the present embodiment will be described with reference to Figs. 9 to 4 . First, on the above-mentioned surface side of the light-transmissive substrate 构成 composed of a glass substrate, a neo-method or a brittle method is simultaneously formed by the same method (for example, 'ITO, AZO, GZ〇, IZ〇). The structure of the second electrode transparent conductive oxide layer 24 and the second transparent conductivity 25 is increased to obtain the structure shown in FIG. Next, 'on the one surface side of the light-transmitting substrate 1, the same metal material; the core metal layer 27 and the second metal layer 28 are simultaneously formed by the ore method, thereby obtaining = then, on the light-transmissive substrate On the one surface side, an insulating crucible 29 composed of a tree 201244208 ember material (for example, polyacrylonitrile, a varnish resin, an epoxy resin, or the like) is formed, thereby obtaining the structure shown in FIG. - Thereafter, on the one surface side of the light-transmitting substrate 1, the organic rainbow layer 22' is formed, for example, by a Luo plating method, whereby the structure shown in Fig. 12 is obtained. Further, the method of forming the organic EL I 22 is not limited to the distillation method, and may be appropriately selected depending on the material of the organic EL layer 22, for example, a coating method. Then, on the one surface side of the light-transmitting substrate 1, a second electrode 23 made of the same metal material (for example, Ming, silver, etc.) is formed by a steaming iron method or a mineralizing method. The wiring 23b is obtained to obtain the element substrate 3 of the structure shown in FIG. The component substrate forming process in which the organic EL element 2 is formed on the one surface side of the light-transmitting substrate has been described. For example, an adhesive (for example, a squeezing agent, a glass sintering agent, etc.) 4a is used as a material on a member substrate 3 by a dispenser, thereby obtaining a cross-cut of the agent 4a of FIG. The i terminal portion T1 and the second terminal k 2 are.卩T2 is formed to surround the hair first ^0, so that the i-th terminal portion T1 and the second end portion are located outside the space. Individually - here, in the coating process of applying the adhesive 4a, the adhesive 4a is applied in a rectangular frame shape on a plurality of substrates, or in a recess of the glass substrate 5; The substrate 3 is coated in a rectangular frame shape. The periphery) will be adhered to the distributor, and for example, a screen printing device may be used, and a slit applicator or the like may be used. Then, the die is coated, and then an overlapping process is performed, so that the front substrate and the heat equalizing plate 6 and the element substrate 3* are provided with the drying member 7 22/35.

S 201244208 is formed by forming the joint portion 4 to obtain a hardening process for causing the adhesive 4a to harden the light-emitting device A. The burial is carried out by the weight 4, and the element substrate 3 and the lid substrate 5 are overlapped, and the adhesive 4a is pressed and pressed to expand. (4) Stone ft process I, in the case of an ultraviolet curing type of adhesive, according to the production brother: = agent 4a hardened. Further, when the dot 4& is a heat-curing type, the adhesive 4a is hardened by heating the adhesive. = a pasting process of the dry material 7 toward the lid substrate 5, a coating process applied to the element substrate 3 or the lid substrate 5, an overlap process in which the ▲ reverse 3 and the ruthenium substrate 5 overlap, and the adhesive 4a is hard. The hardening process is carried out, for example, in a nitrogen atmosphere of a dew point machine. Further, the heat equalizing plate 6 can be attached to the lid substrate 5 after the adhesive 乜 of the joint portion 4 is cured. Further, as the desiccant of the dry remainder member 7, for example, a sealed type of d-drying agent or a coated type of dry (four) can be used. The combination of the hardening process field in the case of the coating type drier and the joint portion 44a is performed separately before the overlap of the element substrate 3 and the lid substrate 5, or in the hardening process of hardening the adhesive 4a of the joint portion 4. Anything from the middle to the beginning can be done. As the coating method of the coating type (four), for example, various methods using a distributor, a screen printing device, a metal mask, a die coater, a slitter, and the like can be produced. Therefore, if the method of manufacturing the light-emitting device A is further described, for example, a coating process is required, and after the element substrate 3 can be arranged in a rectangular plate shape of an array of 2χ2, the third substrate of the respective element substrate 3 is _ (not shown in the drawing), or after the lid substrate 5 can be arranged in an array of rectangular plates of 2χ2, the fourth substrate (not shown) diced into the respective lid substrates 5 is applied to the second substrate 23/35 201244208. Agent 4a. Here, the third substrate may be a rectangular plate shape in which the element substrate 3 can be arranged in parallel with an array of 2 χ 〇 整数. In other words, if the fourth substrate is the lid substrate 5, it may be arranged in a rectangular plate shape of 2xj (j = i). After the cloth process, a weight 4: process in which the fourth substrate and the third substrate are overlapped is performed. Then, a hardening process is performed to harden the adhesive to form the joint portion 4. Thereafter, the cutting process is performed, and the third substrate is cut into individual element substrates 3, and the fourth substrate is cut into individual lid substrates 5. Further, in the dicing process, the third substrate is cut, and the surface of the third substrate on the side opposite to the second substrate side is drawn by the first scribe line, for example, by the scriber (4) (4), for example, by the fourth substrate side. The third substrate may be cut by applying pressure by a breaking machine. Further, in the cutting process, the fourth substrate is cut, and the second substrate is drawn on the surface on the opposite side of the third substrate side by, for example, a second scribe line by the scriber. The fourth substrate may be cut by applying pressure by a crusher. Further, the third substrate is not limited to an array-shaped rectangular plate shape in which the element substrate 3 can be arranged in parallel with an integer of 2 > d 0 . The rectangular plate-shaped object which is larger than the element substrate 3 of the first unit size which is defined in advance may be cut into the first unit size or the element substrate 3 which is cut into a desired outer shape smaller than the third substrate. . In this case, the fourth substrate is not limited to a rectangular plate shape in which the lid substrate 5 can be arranged in an array of 2xj (j=i). The rectangular plate-shaped object that is larger than the predetermined second unit size cover substrate 5 may be cut into a second unit size or a cover base that is cut to a desired outer size smaller than the fourth substrate. /35

S 201244208 The light-emitting device A of the second embodiment has a light transmissive two-bias=substrate 3, and has one of the above-mentioned tables SI and 2 formed on the light-transmitting substrate 1; the cover substrate 5' and the light transmissive property The substrate 1 is disposed in the above-mentioned direction: (4); and the bonding portion 4' is formed in a frame shape surrounding the light-emitting portion 2 of the organic EL element 2 on the side of the light-transmitting substrate i, and is connected to the substrate 3 and the cover. The adhesive of the substrate 5 is known to be formed. The light η A is provided with a drying member 7 which is disposed on the light-emitting portion of the cover substrate 5 as a light-transmitting soil 1 on the opposite side of the surface. The drying member 7 is disposed on the peripheral portion of the lid substrate 5 on the crucible substrate 5 so as to overlap the joint portion*. Further, in the light-emitting device A of the present embodiment, the planar shape of the drying member 7 is four-corner, and the four drying members 7 are arranged at substantially equal intervals in the circumferential direction of the lid substrate 5. In the light-emitting device A of the present embodiment, the first substrate (translucent substrate), the organic EL element 2, the second substrate (cover substrate) 5, the joint portion 4, and the drying member 7 are provided. The organic EL element 2 has a light-emitting portion 2A that emits light. Organic a 7L piece 2 is formed on the ith substrate! The above surface. The second substrate 5 is disposed to face the above-described surface of the first substrate 1. The 帛2 substrate 5 is configured to form a space 8 in which the light-emitting portion 2A is housed with the first substrate 1. The joint portion 4 is formed in a frame shape surrounding the light emitting portion 2''. The joint portion 4 is configured such that the opposing surface of the second substrate 5 as the first substrate 接合 is joined to the one surface of the second substrate 丨. The drying member 7 is disposed on the outer edge of the region of the opposite surface of the second substrate 5 surrounded by the joint portion 4 so as not to contact the light-emitting portion 2''. Further, in the light-emitting device A of the present embodiment, the light-emitting portion 20 is located at the center of the joint portion 4. As described above, in the light-emitting device A of the present embodiment, the drying member 7 25/35 201244208 is disposed on the peripheral portion of the lid substrate 5 at the inner side of the lid substrate 5 which is more overlapped with the joint portion 4, so that the light is emitted. In the process of the apparatus a, even if a pressing force is applied to the heat equalizing plate 6 and the lid 5 and the lid substrate 5 is convexly deflected on the side of the light emitting portion 20 of the organic EL element, the drying member 7 can be brought into contact with the light emitting portion. In addition, the occurrence of defects in which the light-emitting portion 2 is not able to emit light is suppressed. Further, in the light-emitting device A of the present embodiment, as described above, by providing the heat equalizing plate 6, the temperature of the light-emitting portion of the organic EL element 2 can be uniformized, and the in-plane variation of the temperature of the light-emitting portion 20 can be reduced. . Further, in the light-emitting device A of the present embodiment, the drying member 7 having a low thermal conductivity is disposed on the lid substrate in the cover substrate 5 at the inner side of the region overlapping the joint portion 4, in comparison with the heat equalizing plate 6. The circumferential portion of 5 can suppress the phenomenon that the soaking effect of the heat equalizing plate 6 is impaired. Further, in the light-emitting device A of the present embodiment, the drying member 7 is formed using a desiccant having a higher absorption rate of the infrared ray than the lid substrate 5. In other words, the infrared absorbing rate of the drying member 7 is higher than that of the second substrate (liding substrate) 5. Therefore, according to the light-emitting device A of the present embodiment, in the temperature comparison of the central portion of the xenon light-emitting portion 2A, the temperature of the peripheral portion of the light-emitting portion 2A can be made low and emit light. The current relaxation at the peripheral portion of the crucible 20 is small, and the amount of luminescence is lowered, so that the in-plane variation of the luminance of the light-emitting portion 20 can be reduced. Here, as shown in Fig. 1, the recess 51 formed in the opposing surface of the light-transmitting substrate i in the lid substrate 5 is formed as the first! The polygonal shape (four-corner shape in the present embodiment) is closed. On the other hand, the drying member 7 is formed in a second polygonal shape (four-corner shape in the present embodiment) in which a specific internal angle α2 (=90 degrees) and an internal angle α degree of the first polygonal shape are superposed. Moreover, the drying member 7 is configured such that two vertices having a specific inner angle at the end point are 26/35

S 201244208 The sides 71 and 72 are parallel to the two sides 511 and 512 of the inner angle α1_ point having the first polygonal shape at the end point. In other words, the second substrate 5 has a polygonal recess 5 in the opposite surface (the lower surface of Fig. i(b)). The recess 51 has an outer circumference surrounding the light emitting portion 20 in a plane parallel to the above-described one surface of the i-th substrate ι. The 基板2 substrate 5 is joined to the corner of the bottom surface of the recess 51 by the joint portion 4 at the periphery of the concave portion 51 of the opposite surface. In addition, in the light-emitting device A of the present embodiment, the corner portion has a predetermined internal angle α 1 . The dry member 7 is formed into a shape having an angle (inner angle) α 2 equal to the predetermined inner angle α j . Further, in the light-emitting device of the present embodiment, the drying member 7 is disposed such that the two sides 511, 512 defining the internal angle α of the two sides 71 and 72 of the angle (the inner angle) "2" are opposite and parallel. Further, in the light-emitting device i of the present embodiment, the drying members 7 are disposed at the corners of the bottom surface of the recess 51, respectively. Further, in the light-emitting device of the present embodiment, the two sides 7 and 72 of the drying member 7 having the apex of the specific internal angle α2 at the end point can be made parallel to the joint portion 4, and the moisture from the outside is dried. The member 7 can be efficiently absorbed, and the reliability can be further improved. Further, in the present embodiment, since the planar shape of the drying member 7 is a quadrangular shape, any of the four internal angles can be made to have a specific internal angle α2. The drying member 7 can be disposed. In the light-emitting device of the present embodiment, the organic EL element 2 includes the first electrode 21, the organic EL layer 22, the second electrode 23, the first terminal portion T1, the second terminal portion T2, and the auxiliary electrode 26 as described above. . The one surface of the light-transmitting substrate 1 is disposed at each end portion of the both ends in the predetermined direction. 27/35

S 201244208 The first terminal portion T1 and the second terminal portion T2. Therefore, in the light-emitting device of the present embodiment, <high brightness and improved in-plane uniformity of luminance are achieved. Moreover, the area of the illuminating portion can be reduced. Further, in the direction orthogonal to the predetermined direction, the light-emitting device A of the present embodiment is arranged in a plurality of lighting fixtures as a light source, and the distance between the adjacent light-emitting portions 20 can be made small, and the appearance becomes beautiful. Further, in the light-emitting device A of the present embodiment, as described above, the first terminal portion T1 and the second terminal portion T2 have a laminated structure of the transparent conductive oxide layers 24 and 25 and the metal layers 27 and 28, respectively. Only the transparent conductive oxide layers 24, 25 are bonded to the joint portion 4. As a result, in the light-emitting device A of the present embodiment, high luminance can be achieved and the in-plane uniformity of luminance can be improved. Then, the joint strength between the joint portion 4 and the first terminal portion T1 and the second terminal portion T2 can be improved. Further, it is possible to prevent the states of the first interface and the second interface from changing when the first metal layer 27 and the second metal layer 28 are oxidized with time. This will increase reliability. In the comparative example in which the light-emitting device A of the present embodiment and the metal layers 27 and 28 are joined to the joint portion 4 by the first terminal portion T1 and the second terminal portion T2, the light-emitting portion 20 is not illuminated ( In the dark region, it is confirmed that the light-emitting device A of the present embodiment requires a long time because the limit of the light-emitting portion 2 is only a predetermined time. Therefore, in the light-emitting device A of the present embodiment, the gas barrier property for shutting off moisture or oxygen can be improved, and the life can be extended. Further, in the light-emitting device A of the present embodiment, the width of the i-th terminal portion T1 is large. The total size of the width and the width of the second terminal portion 设定 is set to the same value', whereby the current flowing to the organic EL element can be increased. Also, can make hair 28/35

201244208 Increased light efficiency. In the light-emitting device A of the present embodiment, if a current having a critical current density (1x10 〇 5 A/cm 2 in the case of aluminum is 1×1 〇 5 A/cm 2 in the lead wire 23b) flows for a long time, electron migration may occur. There are doubts that can easily cause a disconnection. In contrast, the first transparent conductive oxide layer 24 formed by the TCO of ITO or the like and connected to the first electrode 21 has a large critical current density and a limit on the critical current density (compared to the lead line 23b). Therefore, in the light-emitting device A of the present embodiment, the total size of the width of the second terminal portion 2 is larger than the total size of the width of the second terminal portion T1, so that the electrons can be made. Migration tolerance (hereinafter, roughly referred to as EM tolerance) is raised. Moreover, referring to Fig. 1, the total size of the width of the second terminal portion T2 is the total size of the widths of the four second terminal portions T2 (the dimensions in the left-right direction in Fig. 2), and the g 1 terminal portion is 1 The total size of the width is the total size of the width of the six terminal portions T1 (the size in the left-right direction in FIG. 2), and the light-emitting device A of the present embodiment has a rectangular shape along the plane view. Each of the two sides of the predetermined parallel side of the light-emitting portion 2, the second terminal portion τ2 of m_1) and the i-th terminal portion n of [m+1] are disposed such that the first terminal portion T1 is located at the second terminal On both sides in the width direction of the portion 2, the first conductive oxide layer 24 and the second transparent conductive oxide layer 25 are set to have the same thickness. . As a result, in the light-emitting device A of the present embodiment, the bonding strength or the adhesion between the first terminal portion T1 and the second end sentence η can be made uniform, and the reliability can be improved. 29/35 201244208 However, the planar shape of the light-transmitting substrate 1 is not limited to a rectangular shape, and may be a square shape. In the case where the planar shape of the light-transmitting substrate is a square shape, the planar shape of the light-emitting portion 2A is grown and the two short sides of the rectangular light-emitting portion 20 are the mosquitoes. can. X, the planar shape of the through-substrate 丨 can also be made into a rectangular shape, and the planar view of the light-emitting portion 20 can be made into a rectangular shape similar to that of the light-transmissive plate, and (4) the light-emitting portion 2 () ^ is the two sides of the above regulations. (Embodiment 2) The basic configuration and concept of the light-emitting device A of the present embodiment. As shown in Fig. 15, the planar shape of the substrate, i.e., the substrate 5, which is a light-transmissive substrate, is not the same as that of the embodiment, and the same components are denoted by the same reference numerals, and description thereof will be omitted. The planar view of the light-transmitting substrate i of the embodiment is a hexagonal shape. The plan view of the cover substrate 5 is a regular hexagonal shape similar to the light-transmitting substrate i. Further, the plan view shape of the light-emitting portion 2 described in the embodiment is also formed into a concave portion 51 formed in the opposite surface of the light-transmitting substrate 中 in the cover sheet substrate 5 in the plan view. It is a mouth shape of the first polygonal shape (normal hexagon in the present embodiment). The 'drying member 7 is formed such that the specific inner angle ) is equal to the inner angle of the first polygonal shape is called the fourth (the fourth embodiment) is the second side (the equilateral triangle in the present embodiment). Further, the drying member 7 is such that the two sides 71 of the apex of the specific inner axis a2 at the end point are parallel to the top (four) two sides 511 of the inner angle α 第 having the first polygonal shape at the end point. . Therefore, even in the light-emitting device of the present embodiment, the two sides 7 of the drying member 30/35 201244208 7 having a specific internal angle α2 _ point at the end point can be made flush with the joint portion 4 and The moisture from the outside of the drying member can be further improved in reliability. The first multi-angle shape (that is, the shape of the recess 51) is not limited to a regular hexagonal shape, and may be, for example, a regular pentagon shape or a regular octagonal shape. Further, the first shape is not limited to the regular polygonal shape. The polygonal shape may be a polygonal shape. However, in the case of a positive j-shape, a single second polygonal drying member 7 may be prepared to achieve localization. In the organic rainbow element 2 of each of the above-described embodiments, the second electrode 23 having a sheet resistance smaller than that of the second conductive film constitutes a cathode, but the first electrode is formed. 21 \Pole 21 The second electrode 23 may constitute an anode. In either case, the light may be taken out by the first electrode 21 formed of a conductive film. . The light-emitting device A described in the respective embodiments can be used as a light source for illumination, for example, but it is not limited to illumination, and can be used in other places. [Brief Description of the Drawings] Fig. 1 is a schematic cross-sectional view showing the light-emitting device of the first embodiment, wherein (a) is a schematic rear surface (b) and (8) is H-H. Fig. 2 is a rear elevational view of the light-emitting device of the first embodiment. Fig. 3 is a schematic cross-sectional view showing the line B-B of Fig. 2; Fig. 4 is a schematic cross-sectional view taken along line C-C' of Fig. 2; Fig. 5 is a schematic cross-sectional view taken along line G-G' of Fig. 2; Fig. 6 is a schematic cross-sectional view showing the line D-D of Fig. 2; Fig. 7 is a schematic cross-sectional view showing the line E-E of Fig. 2; Fig. 8 is a schematic cross-sectional view showing the line F-F of Fig. 2; 31 / 35 201244208 FIG. 9 is a main engineering plan view illustrating a method of manufacturing the same light-emitting device. Fig. 10 is a main engineering plan view showing a method of manufacturing the same light-emitting device. Fig. 11 is a main engineering plan view showing a method of manufacturing the same light-emitting device. Fig. 12 is a main engineering plan view showing a method of manufacturing the same light-emitting device. Fig. 13 is a main engineering plan view showing a method of manufacturing the same light-emitting device. Fig. 14 is a main engineering plan view showing a method of manufacturing the same light-emitting device. Fig. 15 is a schematic rear view showing a light-emitting device of a second embodiment. Fig. 16 is a schematic cross-sectional view showing an organic EL element of the prior art. [Description of main component symbols] 1 Translucent substrate (first substrate) 2 Organic EL device 20 Light-emitting portion 201 Substrate 202 Organic EL structure 203 Sealing plate 204 Adhesive 205 Mixture 21 First electrode 22 Organic EL layer 23 Second electrode

32/35 201244208 23b lead wiring 24 first transparent conductive vaporized layer 24a bonding region 25 second transparent conductive oxide layer 25a bonding region 26 auxiliary electrode 27 first metal layer 28 second metal layer 29 insulating film 3 Element substrate 4 Bonding portion 4a Adhesive 5 Cover substrate (second substrate) 51 Recess 511 > 512 Side 6 Heat absorbing plate 7 Drying member 71 > 72 Side 8 Space A Light-emitting device T1 First terminal portion T2 Second terminal Department 33/35

Claims (1)

201244208 VII. Patent application scope: 1. A light-emitting device comprising: a first substrate; an organic EL element having a light-emitting portion that emits light and formed on one surface of the first substrate; and a second substrate Forming a space in which the light-emitting portion can be formed between the first substrate and the first substrate; the joint portion is formed in a frame shape surrounding the light-emitting portion, and the second t The plate is bonded to the surface of the first substrate 1 to the one surface of the first substrate, and the drying member is disposed on the opposite surface of the second substrate so as not to contact the light-emitting portion. The edge of the region surrounded by the aforementioned joint portion. 2. 3. Please refer to the first slave registration, and the light-emitting part of the towel is like the center of the joint. The light-emitting device I of the first aspect of the patent, wherein the two-th f-substrate has a polygonal recess in the opposite surface; two of the first substrate are in a plane parallel to the surface-surface; The periphery of the light-emitting portion; the periphery of the aforementioned recess is via a corner portion of the bottom surface of the application. The corner portion has the shape = of the optical device'. Λ $ $ $ 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 34 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光The two sides of the inner corner are respectively opposite and parallel. 6. The light-emitting device according to any one of claims 1 to 5, wherein the drying member is disposed at each of the aforementioned corners of the bottom surface of the recess. 7. The light-emitting device according to any one of claims 1 to 5, wherein the drying member has a higher infrared absorption rate than the second substrate. 35/35