TW201507142A - Substrate for organic electronics and method for manufacturing organic electronics - Google Patents

Abstract

To provide, at low cost, organic electronics, wherein luminance unevenness generated in organic electroluminescent elements formed by print coating is reduced, and power generation unevenness of organic solar cells is reduced, and to provide a substrate for manufacturing the organic electronics at low cost. Provided is a substrate for organic electronics, said substrate having a base substrate, and an organic layer and a terminal section, which are provided on the base substrate. The substrate has a liquid repellent section on the terminal section, and a liquid absorbing section at the periphery of the terminal section.

Description

Substrate for organic electronic device and method for manufacturing organic electronic device

The present invention relates to an element structure for manufacturing a high-performance organic electroluminescence device at low cost, a method for producing the same, or a substrate.

As a prior example, Patent Document 1 discloses the following technique. The organic electroluminescence device described in Patent Document 1 is an organic electroluminescence device in which a plurality of pixels are arranged in a video display region, and is characterized in that a layer of inorganic elements is sequentially arranged at a position of a pixel electrode surrounding each pixel. a bank portion formed of an insulating film, a metal thin film, and a liquid-repellent film containing a fluorine-containing sulfur compound is disposed at a position on the pixel electrode surrounded by the bank portion, and a functional layer including the light-emitting layer is disposed while covering the bank The opposite electrode is provided in the manner of the part and the functional layer. Thereby, since the size or film thickness of the organic bank layer cannot be strictly controlled, the thickness of the bank, the inclination angle of the side surface of the bank opening, and the difference in the size of the opening are improved, so that it is formed in the pixel. The layer thickness of the positive hole injection layer or the light-emitting layer fluctuates, so that uniform display characteristics cannot be obtained between pixels or between panels.

However, the organic electroluminescence device described in Patent Document 1 is based on a display, and can be formed by forming an organic layer. A fine-patterned inkjet device. On the other hand, in an organic electroluminescence device suitable for illumination or an organic solar cell, since the area of the organic layer is increased, the organic layer is not coated with ink, and a large-area slit coating can be applied at a high speed. Or gravure printing is the mainstream. In the present embodiment, there is a problem that the film thickness is thicker or smaller than the set value at the printing start portion and the printing end portion, and the organic layer is formed only in the light-emitting portion of the organic electroluminescence device or the power generation portion of the organic solar cell. On the other hand, when intermittent coating is not formed around the organic layer, there is a problem that luminance unevenness or power generation unevenness occurs around the light-emitting layer or the power generation layer. In addition, in order to eliminate the uneven brightness or unevenness of light, when the organic layer is applied continuously on the substrate, the organic layer is also formed on the terminals of the peripheral wiring or the electrode. Therefore, after the organic layer is formed, the removal is formed on the upper portion of the terminal. The steps of the organic layer become necessary. In this step, since the removal process by the oxygen plasma or the laser is introduced, there is a new problem that the performance of the organic layer is deteriorated or the foreign matter is generated on the substrate.

[Previous Technical Literature] [Patent Document]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2005-116313

The present invention provides low-cost unevenness or reduced organic sun for reducing the organic electroluminescent element formed by printing coating at a low cost. An organic electronic device in which power generation of a battery is uneven, and a substrate for producing the organic electronic device at low cost is provided.

The present invention has a mother substrate, and an organic electronic device substrate provided on the organic substrate and the terminal portion provided on the mother substrate, and has a liquid-repellent portion on an upper portion of the terminal portion, and a liquid-absorbent portion around the terminal portion.

By using the substrate for an organic electronic device and the method for producing an organic electroluminescence device of the present invention, unevenness in luminance or unevenness in light emission caused by the organic electroluminescence device can be reduced. Therefore, the organic light-emitting element, and the light source device using the same, maintains the ultra-thin/light weight of the organic light-emitting element, and at the same time achieves seamless seamlessness (no circuit/wiring wraparound frame).

100‧‧‧Organic electronic device substrate

101‧‧‧ mother substrate

102‧‧‧lower electrode

103‧‧‧Auxiliary wiring

104‧‧‧

105‧‧‧terminal

106‧‧‧Sucking pad

108‧‧ ‧ liquid layer

601‧‧‧ organic layer

602‧‧‧ upper electrode

604‧‧‧Positive hole transport layer

605‧‧‧Electronic blocking layer

606‧‧‧Blue light layer

607‧‧‧Green luminescent layer

608‧‧‧Red light layer

609‧‧‧Right hole blocking layer

610‧‧‧Electronic transport layer

611‧‧‧buffer layer

Fig. 1 is a structural view of a substrate overlooking an organic electronic device above.

Figure 2 is a cross-sectional view of (A) - (A') of Figure 1.

Figure 3 is a cross-sectional view of (B) - (B') of Figure 1.

Fig. 4 is a structural view of the substrate overlooking the organic electronic device above.

Fig. 5 is a structural view showing a shape of a bank different from that of Fig. 1.

Fig. 6 is an explanatory view showing a cross section of an organic light emitting element.

Hereinafter, an embodiment of the organic electroluminescence device of the present invention will be described using a drawing or the like. The following description is a specific example of the present invention, but the present invention is not limited to the description, and various modifications and changes can be made by those skilled in the art within the scope of the technical idea disclosed in the present specification. In addition, all the drawings for explaining the present invention will be given the same reference numerals to those having the same functions, and the description thereof will be omitted. Further, the organic solar cell is the same as the organic electroluminescent element described in the present embodiment, but the organic layer, the electrode, and the wiring material can be replaced by using a material generally used for an organic solar cell.

[Example 1]

A method of fabricating the substrate 100 for an organic electronic device used in the organic electronic device of the present invention in the first embodiment will be described with reference to Figs. 1 to 4 . 1 is a structural view of the substrate 100 for an organic electronic device viewed from above, FIG. 2 is a cross-sectional view of (A)-(A') of FIG. 1, and FIG. 3 is a cross-sectional view of (B)-(B') of FIG. Figure. 4 is a structural view of the substrate 100 for an organic electronic device viewed from above, and a plurality of substrates 100 for an organic electronic device shown in FIG. 1 are displayed. Fig. 5 is a structural view showing a shape of a bank different from that of Fig. 1.

The substrate 100 for an organic electronic device is provided with a mother substrate 101, a lower electrode 102, an auxiliary wiring 103, a bank 104, and a terminal 105. Absorbent pad 106 that absorbs excess solution.

The mother substrate 101 may be selected from a wide range as long as it is an insulating material. Specifically, an inorganic substrate such as glass, quartz or sapphire may be used, acrylate, epoxy resin, polycarbonate, polyamide, polyimide, polynorbornene, polyoxyxylene, polydicarboxylic acid naphthalene. An organic plastic substrate such as butylene dicarboxylate, polyethylene terephthalate, polyethylene naphthalate, polyacrylate, polyether ketone, polyether oxime, polyketone, polyphenylene sulfide. Further, it may be used on the surface of these mother substrates 101, and a film such as ruthenium oxide or fluororesin may be provided.

The lower electrode 102 is formed on the mother substrate 101. The material of the lower electrode 102 can be used as long as it is transparent and has a high work function. Specific examples thereof include conductive materials such as ITO, IZO, silver nanofilm, graphene, and PEDOT. The pattern formation of the electrode can be generally performed by photolithography or the like on a glass substrate or a film substrate.

The ITO, IZO, silver nanofilm, graphene, PEDOT, and the like of the lower electrode material are higher in electrical resistance than the metal material. Therefore, the light-emitting portion generates electric field unevenness due to a voltage drop, which causes uneven brightness of the light. In order to reduce this voltage drop, the auxiliary wiring 103 is formed using Ag, Al, Cu, Au or the like on the lower wiring. The pattern formation of the auxiliary wiring 103 can be generally performed by photolithography or the like, but it can also be formed by using a metal ink by various printing methods such as screen printing.

Next, the bank 104 is formed. In the bank 104, a polyimide film having a positive photosensitive property is spin-coated to a thickness of 1.5 μm, and the auxiliary wiring is used as a mask, and the back surface of the substrate is exposed, and further development is performed. On the auxiliary wiring, banks 110 which are approximately identical in shape to those of the planar pattern are formed. The thickness of the bank 104 is determined by the thickness of the solution at the time of printing, and can be adjusted from several hundred nm to several μm. The shape of the bank 104 is formed as shown in FIG. 1 so as to surround the light-emitting region. Further, the bank 104 is formed such that a solution for forming the remaining organic layer 601 in the light-emitting region does not excessively remain in the light-emitting region, and is opened at least one or all of the sides. Moreover, as shown in FIG. 1, the opening of the bank 104 may be provided in two places, and as shown in FIG. 5, only one opening part may be provided in the bank 104. Further, by providing the opening portion on the side close to the terminal 105 and the liquid-absorbent pad 106, the excess solution can be induced to flow in the direction in which the liquid-absorbent pad 106 is located, and the solution can be efficiently absorbed (for the formation of the organic layer). Solution). As a result, unevenness in luminance or unevenness in light emission which is generated in the organic electroluminescence element can be reduced.

A liquid-repellent layer 108 is formed on the upper portion of the terminal 105. As a material of the liquid-repellent layer 108, Optool which is well known as a fluorine-containing compound is formed by dropping. In addition to this, it is also suitable to use a thiol (general name of an organic compound having a mercapto group (-SH) (R to SH; R is a hydrocarbon group such as an alkyl group). The thiol compound is adsorbed on the metal to form a self-organized monomolecular film. When the thiol contains a fluorine atom, the surface of the lower electrode 102 of the hydrogen sulfide-based film and the auxiliary wiring 103 exhibit liquid repellency by the physical properties of fluorine. In this step, such a fluorine-containing sulfur compound is dissolved in alcohol at a concentration of 0.1 to 1 mM, and is dropped to a portion used as a terminal. By this step, on the surface of the lower electrode, the monothiol film of the above-mentioned hydrogenthio group is selectively formed, and the surface of the metal film exhibits liquid dispensing Sex.

As shown in FIG. 1, FIG. 2, and FIG. 4, on the substrate 100 for an organic electronic device, a liquid-absorbent pad 106 of an excess printing solution which will be formed later to absorb the organic layer 601 is formed. The liquid absorbing pad 106 is preferably provided at a position close to the terminal 105 because the solution for displacing the liquid-repellent layer 108 toward the outside of the terminal 105 (the solution for forming the organic layer) is absorbed when the organic layer 601 is formed.

In the present invention, a plurality of organic layers 601 and terminals 105 are provided on the substrate 100 for an organic electronic device. One or more terminal portions 105 are provided corresponding to one organic layer 601. The liquid absorbing pad 106 is located between the first terminal portion 105 corresponding to the first organic layer 601 and the second terminal portion 105 corresponding to the second organic layer 601 adjacent to the first organic layer 601.

A unit area of one organic electronic device is formed by one organic layer 601 and a terminal 105 provided corresponding to the organic layer 601. The soaker pad 106 is located outside the unit area. When one organic electronic device is manufactured from the substrate 100 for an organic electronic device, the liquid-absorbent pad 106 is finally disposed of in order to perform separation in each unit region.

The liquid-absorbent pad 106 is a starch-based water-absorbent resin such as a graft polymerization type starch-based water-absorbent resin or a carboxymethylated starch-based water-absorbent resin, or a graft-polymerized cellulose-based water-absorbing property. A cellulose-based water-absorbent resin such as a resin or a carboxymethylated cellulose-based water-absorbent resin, a polyacrylate-based resin, a polyvinyl alcohol-based resin, a polyacrylamide-based resin, or a polyoxyethylene. Chemical bridging type absorption such as water-absorbent synthetic resin Starch-based water-absorbent resin such as water-based resin, graft-polymerized starch-based water-absorbent resin, carboxymethylated starch-based water-absorbent resin, graft-polymerized cellulose-based water-absorbent resin, and carboxymethylated fiber A cellulose-based water-absorbent resin such as a water-absorbent resin; a chemical bridge such as a polyacrylate-based resin, a polyvinyl alcohol-based resin, a polyacrylamide-based resin, or a polyoxyethylene-based water-absorbent synthetic resin. A water-absorbent resin or the like is formed on the mother substrate 101 by screen printing. However, the method of forming the liquid-absorbent pad 106 is not limited to the printing method, and other film forming methods such as gravure printing may be used.

The substrate 100 for an organic electronic device is completed as described above. The substrate 100 for an organic electronic device may be formed into a cluster, and may be formed into a roll shape as shown in FIG. 4, and may be used as a printed electronic substrate 100 using a roll-to-roll apparatus.

[Example 2]

In the second embodiment, a method of fabricating the organic electroluminescence device formed in the organic electronic device substrate 100 described in the first embodiment will be described.

A solution for forming the organic layer 601 is applied onto the substrate 100 for an organic electronic device having the mother substrate 101 and the terminal portion 105 provided on the mother substrate 101. After the solution is applied, the organic layer 601 is formed at a specific position of the mother substrate 101. On the other hand, the solution is applied to the upper portion of the terminal 105, but the liquid-repellent layer 108 is provided on the upper portion of the terminal 105, so that a part of the solution is bounced to the outside of the terminal portion 105. A portion of the solution that is bounced is absorbed by the liquid absorbing pad 106 provided around the terminal portion 105. its Thereafter, the organic electronic device substrate 100 is separated from one individual organic electronic device in each unit area. At this time, the liquid suction pad 106 becomes an unnecessary portion and is discarded. Through the above steps, an organic electronic device is manufactured.

Fig. 6 is a cross-sectional view showing an organic light emitting element according to an embodiment of the present invention. The organic light-emitting element includes a substrate 100 for an organic electronic device, an organic layer 601, and an upper electrode 602.

The organic layer 601 includes a positive hole transport layer 604, an electron blocking layer 605, a light emitting layer (blue light emitting layer 606, a green light emitting layer 607, a red light emitting layer 608), a hole preventing layer 609, an electron transporting layer 610, and a buffer layer. 611 and so on. The layers constituting the organic layer 601 may be in contact with each other, or may be interposed with other layers, or may be mixed, or a part of the layers may be omitted. One of the lower electrode 102 or the upper electrode 602 may have a reflection function, and the light of the organic light-emitting element may be taken out in a single-sided direction. In addition, the upper electrode 602 and the lower electrode 102 may be made of a transparent material, and the light of the organic light-emitting element may be taken out in a double-sided direction. The organic light-emitting device is expected to be, for example, a backlight of a thin illumination device or a liquid crystal display device. By applying a voltage between the lower electrode 102 and the upper electrode 602, the positive holes injected from the lower electrode 102 and the upper electrode 602 are recombined with electrons in the light-emitting layer to emit light.

The organic layer 601 is mainly formed by dissolving a material in a solvent such as toluene and printing using a die coater. However, it may be formed by microgravure printing or vacuum deposition, or may be formed by combining these methods. The materials used for the respective layers are specifically described below.

<Positive hole transport layer>

The positive hole transport layer 604 is a positive hole that is injected into the luminescent layer. Therefore, the positive hole transport layer 604 is preferably constituted by a positive hole transporting material having a high positive hole mobility. Further, as the positive hole transport layer 604, it is preferable to be chemically stable, the ionization potential energy is small, the electron affinity is small, and the glass transition temperature is high. As the positive hole transport layer 604, for example, N, N'-bis(3-methyl phenyl)-N, N'-diphenyl-[1,1'-biphenyl]-4,4'diamine (TPD), 4 , 4'-bis[N-(1-naphthyl)-N-phenyl amino]biphenyl(α-NPD), 4,4',4"-tri(N-carbazolyl)triphenyl amine(TCTA), 1,3, 5-tris[N-(4-diphenyl amino phenyl)phenyl amino]benzene(p-DPA-TDAB), 4,4',4"-tris(N-carbazole)triphenylamine(TCTA), 1,3,5- Tris[N,N-bis(2-methyle phenyl)-amino]-benzene(o-MTDAB), 1,3,5-tris[N,N-bis(3-methyl phenyl)-amino]-benzene(m -MTDAB), 1,3,5-tris[N,N-bis(4-methyl phenyl)-amino]-benzene(p-MTDAB), 4,4',4"-tris[1-naphthyl(phenyl) Amino]triphenyl amine(1-TNATA), 4,4',4"-tris[2-naphthyl(phenyl)amino]triphenyl amine(2-TNATA), 4,4',4"-tris[biphenyl-4- Y-(3-methyl phenyl)amino]triphenyl amine(p-PMTDATA), 4,4',4"-tris[9,9-dimethyl fluoren-2-yl(phenyl)amino]triphenyl amine(TFATA), 4 , 4', 4"-tris (N-carbazolyl) triphenyl amine (TCTA), 1,3,5-tris-[N-(4-diphenyl amino phenyl)phenyl amino]benzene (p-DPA-TDAB), 1 ,3,5-tris{4-[methyl phen Yl(phenyl)amino]phenyl} Benzene (MTDAPB), N, N'-di(biphenyl-4-yl)-N, N'-diphenyl[1,1'-biphenyl]-4,4'-diamine(p-BPD), N,N' -bis(9,9-dimethyl fluoren-2-yl)-N,N'-diphenyl fluoren-2,7-diamine(PFFA), N,N,N',N'-tetrakis(9,9-dimethyl fluoren -2-yl)-[1,1-biphenyl]-4,4'-diamine (FFD), (NDA)PP, 4-4'-bis[N,N'-(3-tolyl)amino]-3 -3'-dimethyl biphenyl (HMTPD) or the like is preferable, and one type may be used alone or two or more types may be used in combination.

A positive hole injection layer may be disposed between the lower electrode 102 and the positive hole transport layer 604 as needed. In order to reduce the injection barrier of the lower electrode 102 and the positive hole transport layer 604, the positive hole injection layer is preferably formed by a material having an ionization potential close to the work function of the lower electrode 102. Further, the positive hole injection layer is preferably responsible for burying the unevenness of the underlying surface. As the positive hole injection layer, for example, copper phthalocyanine, starburst amine compound, polyaniline, polythiophene, vanadium oxide, molybdenum oxide, cerium oxide, aluminum oxide, or the like can be given. In addition, an octadecyltrichlorodecane, heptafluoroisopropoxypropylmethyldichlorodecane, trifluoropropylmethyldichlorodecane, hexamethyldioxane, vinyl triethyl, which forms a double layer of charge 2, is formed. Oxydecane, γ-methylpropenyloxypropyltrimethoxydecane, γ-aminopropyltriethoxydecane, N-phenyl-γ-aminopropyltrimethoxydecane, γ-mercapto a decane such as propyltrimethoxydecane, Heptadecafluoro-1,1,2,2-tetra-hydrodecyl-1-trimethoxysilane, Octadecyl trietoxysilane, decyltrichlorodecane, decyltriethoxydecane, or phenyltrichloromethane Compound, or 1-phosphonic acid octane, 1-phosphine Acid hexane, 1-hexadecane hexadecane, 1-phosphonic acid-3,7,11,15-tetramethylhexadecane, 1-phosphonic acid-2-ethylhexane, 1-phosphonic acid-2 A monomolecular film may be self-organized such as a phosphonic acid compound such as 4,4-trimethylpentane or 1-phosphonic acid-3,5,5-trimethylhexane.

<Electronic blocking layer>

The electron blocking layer 605 has a task of encapsulating electrons transferred to the light-emitting layer into the light-emitting layer. Therefore, it is preferable that the electron affinity is small as compared with the organic material constituting the light-emitting layer. In addition, there is a task of transporting the positive holes injected by the positive hole transport layer 604 to the luminescent layer. As described above, the electron blocking layer 605 is preferably formed of a positive hole transporting material having a high positive hole mobility and a small electron affinity. For example, di-[4-(N,N-diethyl-amino)-phenyl]cyclohexane (TAPC), 2,2',7,7'-tetrakis(N,N-diphenylamino)-9,9- One of them may be used alone or two or more kinds may be used in combination, such as spirobifluorene (sp-TAD) or Tris (phenyl pyrazole) iridium (III) (Ir (ppz) 3).

<Light Emitting Layer>

The blue light-emitting layer 606, the green light-emitting layer 607, and the red light-emitting layer 608 are used when the host material forming the light-emitting layer emits light by itself, and when a dopant material added to the main body is light-emitting. The center wavelength of the luminescence spectrum is defined as blue light in the range of 430 to 490 nm, green light is defined in the range of 500 to 550 nm, and red light is defined in the range of 580 to 650 nm.

Examples of the host material include a distyrylarylene inducer (DPVBi), a Silole inducer (2PSP) having a benzene ring in the skeleton, and an oxydiazole inducer (EM2) having a triphenylamine structure at both ends. a perinone inducer (P1) having a phenanthrene group, an oligothiophene inducer (BMA-3T) having a triphenylamine structure at both ends, and a perylene inducer (tBu-PTC), Tris(8-quinolinol)aluminium, polyparaphenylene vinylene (PPV) inducer, thiophene inducer, poly(p-phenylene), inducer, polydecane inducer, polyacetylene inducer, carbazole inducer, 芴The fluorene-inducing body or the aryl decane-inducing body may be used alone or in combination of two or more.

Examples of the dopant material contained in the light-emitting layer include quinacridone, coumarin 6, Nile red, rubrene, and 4-(dicyanomethylene)- 2-methyl-6-(p-dimethylamino styryl)-4H-pyran (DCM), dioxazole inducer, porphyrin platinum complex (PtOEP), ruthenium complex (Ir(ppy) ₃ ) Alternatively, one type may be used alone or two or more types may be used in combination.

Further, the blue light-emitting layer 606 and the green light-emitting layer 607 of the light-emitting layer may be disposed in the same layer or in two layers. The blue light-emitting layer 606, the green light-emitting layer 607, and the red light-emitting layer 608 may also be replaced by separate configurations.

<Positive hole blocking layer>

The positive hole preventing layer 609 has a task of enclosing the positive hole transferred to the light emitting layer into the light emitting layer. Therefore, the ionization potential is preferably larger than that of the organic material constituting the light-emitting layer. Further, there is a task of transporting electrons injected from the electron transport layer 610 to be described later into the light-emitting layer. As described above, the positive hole preventing layer 609 is preferably composed of an electron transporting material having a high electron mobility and a large ionization potential. For example, Bathocuproine (BCP), bis(2-methyl-8-hydroxyquinoline)-4-(phenylphenol)aluminum (BAlq), Tris (2,4,6-trimethyl-3-(pyridin) -3-yl)phenyl)borane (3TPYMB), etc., may be used alone or in combination of two or more.

<Electronic transport layer>

The electron transport layer 610 transports electrons to the luminescent layer. Therefore, the electron transport layer 610 is preferably composed of an electron transporting material having high electron mobility. The electron transport layer 610 may, for example, be a tris (8-quinolinol) aluminum, an oxadiazole inducer, a Silole inducer, a benzothiazole zinc complex or a pore-preventing layer. The organic material is preferably used alone or in combination of two or more.

Preferably, the electron transporting layer 610 preferably contains a reducing agent in the electron transporting material to lower the barrier layer of the buffer layer 611 and the electron transporting layer 610, or to improve the electrical conductivity of the electron transporting layer 610. Make Examples of the reducing agent include alkali metals, alkaline earth metals, alkali metal oxides, alkaline earth oxides, rare earth oxides, alkali metal halides, alkaline earth halides, rare earth halides, alkali metals, and aromatics. A complex formed by a compound or the like. Particularly preferred alkali metals are Cs, Li, Na, K. However, it is not limited to these materials, and one type of these materials may be used alone or two or more types may be used in combination.

Further, the electron injecting layer is inserted between the upper electrode 602 or the buffer layer 611 and the electron transporting layer 610 to improve electron injection efficiency. As the electron injecting layer, for example, lithium fluoride, magnesium fluoride, calcium fluoride, barium fluoride, barium fluoride, magnesium oxide, aluminum oxide or the like is preferably used. However, it is not limited to these materials, and one type of these materials may be used alone or two or more types may be used in combination.

<buffer layer>

The buffer layer 611 is formed in a layer between the organic film serving as the lower underlayer and the transparent electrode in order to prevent damage to the organic film which becomes the lower underlayer when the transparent electrode is formed. The buffer layer 611 is formed of an inorganic material. As a material of the buffer layer 611 of the top cathode structure shown in Fig. 1, a metal material such as magnesium or silver is preferable. Further, these materials may be used singly or in combination of two or more alloys. Further, examples of the material of the buffer layer 611 of the top anode structure in which the upper electrode 602 is used as an anode include vanadium oxide, molybdenum oxide, tungsten oxide, and the like.

<reflective electrode>

Examples of the reflective electrode include metals such as Al, Au, Ag, Cu, indium, molybdenum, and nickel films, alloys thereof, inorganic materials such as polycrystalline germanium and amorphous germanium, and graphene. Further, a laminated film of a transparent conductive film such as tin oxide, indium oxide, indium tin oxide (ITO) or indium zinc oxide (IZO) may be formed on the above metal or alloy.

101‧‧‧ mother substrate

104‧‧‧

106‧‧‧Sucking pad

108‧‧ ‧ liquid layer

602‧‧‧ upper electrode

Claims (9)

A substrate for an organic electronic device, comprising: a mother substrate; and an organic layer and a terminal portion provided on the mother substrate; wherein the terminal portion has a liquid-repellent portion at an upper portion thereof, and has a suction around the terminal portion Liquid department. The substrate for an organic electronic device according to claim 1, comprising a plurality of the organic layer and the terminal portion, wherein the terminal portion is provided corresponding to each of the organic layers, and the liquid absorbing portion is located corresponding to the first organic layer The first terminal portion and the second terminal portion corresponding to the second organic layer adjacent to the first organic layer. The substrate for an organic electronic device according to claim 2, wherein the organic layer and the terminal provided corresponding to the organic layer constitute a unit region of one organic electronic device, and the liquid absorbing portion is located in the unit region. Outside. The substrate for an organic electronic device according to claim 1, wherein the mother substrate has a bank formed by surrounding the organic layer and opening a part thereof. The substrate for an organic electronic device according to claim 4, wherein the bank is formed to be open to the side close to the liquid-absorbent portion. The substrate for an organic electronic device according to the first aspect of the invention, wherein the absorbing liquid has a sulfur compound or a fluorine compound. The substrate for an organic electronic device according to claim 1, wherein the substrate for producing an organic electroluminescence device or an organic solar cell is used. A method of producing an organic electronic device, comprising: a coating step of applying a solution for forming an organic layer on a substrate for an organic electronic device having a mother substrate and a terminal portion provided on the mother substrate; a part of the solution applied to the terminal portion, a liquid-repellent step of the liquid-repellent portion provided on the upper portion of the terminal portion to the outside of the terminal portion, and a portion of the solution bounced by the liquid-repellent step The liquid absorbing step is absorbed by the liquid absorbing portion provided around the terminal portion. The method for producing an organic electronic device according to the eighth aspect of the invention, wherein the substrate for an organic electronic device is a substrate for manufacturing an organic electroluminescence device or an organic solar cell.