WO2013100421A1 - 액정 표시 장치의 배면전극 형성용 도전성 조성물 및 이를 사용한 배면전극의 형성 방법 - Google Patents
액정 표시 장치의 배면전극 형성용 도전성 조성물 및 이를 사용한 배면전극의 형성 방법 Download PDFInfo
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- WO2013100421A1 WO2013100421A1 PCT/KR2012/010390 KR2012010390W WO2013100421A1 WO 2013100421 A1 WO2013100421 A1 WO 2013100421A1 KR 2012010390 W KR2012010390 W KR 2012010390W WO 2013100421 A1 WO2013100421 A1 WO 2013100421A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
- H01B1/12—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances organic substances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
- H01B1/12—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances organic substances
- H01B1/124—Intrinsically conductive polymers
- H01B1/127—Intrinsically conductive polymers comprising five-membered aromatic rings in the main chain, e.g. polypyrroles, polythiophenes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/12—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D165/00—Coating compositions based on macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Coating compositions based on derivatives of such polymers
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/10—Definition of the polymer structure
- C08G2261/14—Side-groups
- C08G2261/142—Side-chains containing oxygen
- C08G2261/1424—Side-chains containing oxygen containing ether groups, including alkoxy
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
- C08G2261/32—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain
- C08G2261/322—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain non-condensed
- C08G2261/3223—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain non-condensed containing one or more sulfur atoms as the only heteroatom, e.g. thiophene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/70—Post-treatment
- C08G2261/79—Post-treatment doping
- C08G2261/794—Post-treatment doping with polymeric dopants
Definitions
- the present invention relates to a conductive composition for forming a back electrode of a liquid crystal display and a method of forming a back electrode using the same.
- the back electrode serves to block static electricity applied from the outside.
- ITO indium-tin-oxide
- IZO indium-zinc-oxide
- the ITO or IZO and the like have advantages of excellent resistance and surface hardness characteristics, but in order to form a back electrode using the same, a special process such as a vacuum deposition process is required, and a light transmittance of the formed electrode is inferior.
- the light transmittance is relatively excellent, but there is a problem of increasing the sheet resistance according to the period for use for the back electrode.
- the present invention is to provide a conductive composition for forming a back electrode of a liquid crystal display device, which is capable of providing a back electrode having excellent coating uniformity and low surface resistance and high light transmittance and surface hardness.
- the present invention also provides a method of forming a back electrode for a liquid crystal display device using the composition.
- a conductive polymer comprising Dopants; A solvent having an intramolecular carbonyl group; And a conductive composition for forming a back electrode of a liquid crystal display device comprising a silane coupling agent.
- the conductive compound is 0.1 to 10 parts by weight Conductive Polymer 0/0; Dopant is 0.1 to 10 parts by weight 0/0; A solvent having a carbonyl group within the molecule of 60 to 95 parts by weight 0/0; And 0.1 to 20 wt% of the silane coupling agent.
- the solvent may be dimethylformamide, acetylacetone, or a combination thereof.
- the composition is a methyl alcohol, ethyl alcohol, isopropanol, ethylene glycol, butanediol, neopentyl glycol, 1,3-pentanediol, 1,4-cyclonucleodium di methanol, dietylene glycol, poly Styrene glycol, polybutylene glycol, dimethyl to propane, tri methyl propane, propylene glycol monomethyl ether, chloroform, dichloromethane, tetrachloroethylene, trichloroethylene, dibromoethane, dibromopropane, It may further comprise one or more solvents selected from the group consisting of normal methylpyrrolidone, dimethyl sulfoxide, triethylamine, tributylamine, trioctylamine, cresol and water.
- solvents selected from the group consisting of normal methylpyrrolidone, dimethyl sulfoxide, triethylamine, tributyl
- the auxiliary solvent may be mixed in a weight ratio of 1: 10 to 20 based on the solvent having a carbonyl group in the molecule.
- the conductive polymer may be at least one compound selected from the group consisting of polyaniline-based polymers, polypyrrole-based polymers, and polythiophene-based polymers.
- the dopant is dodecylbenzenesulfonic acid, toluenesulfonic acid, chempsulphonic acid, benzenesulfonic acid, hydrochloric acid, styrenesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, 2-sulfosuccinic acid ester salt, sodium 5-sulfoy At least one compound selected from the group consisting of phthalic acid, dimethyl-5 sodium sulfoisophthalate and 5-sodium sulfo-bis ( ⁇ -hydroxy ethylisophthalate).
- the silane coupling agent may be one or more compounds selected from the group consisting of alkyloxy silanes, amino silanes, vinyl silanes, epoxy silanes, methacryloxy silanes, isocyanate silanes and fluorine silanes.
- a method of forming a back electrode for a liquid crystal display device comprising the step of coating the conductive composition on a substrate.
- the conductive composition for forming the back electrode of the liquid crystal display according to the present invention not only has excellent coating uniformity, but the back electrode formed by using the same has a low surface resistance, high light transmittance and surface hardness, and particularly, a '500 hour reliability' This makes it possible to provide a back electrode for a liquid crystal display device (especially a transverse electric field type liquid crystal display device such as IPS, FPS) having more improved physical properties.
- a liquid crystal display device especially a transverse electric field type liquid crystal display device such as IPS, FPS
- the inventors of the present invention in the course of the study of the liquid crystal display device, when adding a solvent that satisfies specific properties with the conductive polymer, the dopant and the silane coupling agent to the conductive composition for forming the back electrode, It was confirmed that it is possible to promote the expansion of the conductive polymer and the dopant in the composition according to the generated semi-heat and the acidity range of the composition. Through this, the coating uniformity of the composition is excellent, but the back electrode formed using the same has low surface resistance.
- the present invention was completed by confirming that it is possible to provide a back electrode for a liquid crystal display device having high optical transmittance and surface hardness and excellent physical properties.
- a conductive composition for forming a back electrode of a liquid crystal display comprising a.
- the conductive composition according to the present invention is a composition in which a conductive polymer, a dopant, a silane coupling agent, and the like are dispersed in a dispersion medium containing the solvent, and includes a solvent having a carbonyl group in the molecule.
- the dispersion of conductive polymer and dopant can be optimized while the coating uniformity of the composition is excellent, and the back electrode formed by using this can not only maintain low surface resistance even under high temperature and high humidity conditions, but also have high light transmittance and Surface hardness.
- the conductive polymer is a basic component for imparting conductivity to the composition, and may include a conventional conductive polymer in the technical field to which the present invention belongs, and its configuration is not particularly limited.
- the conductive polymer may be at least one polymer selected from the group consisting of polyaniline-based polymers, polypyrrole-based polymers, and polythiophene-based polymers.
- the conductive polymer is poly (3,4- ethylene dioxythiophene) which is a kind of polythiophene-based polymer may be advantageous in terms of securing conductivity and dispersibility.
- the conductive polymers are the standard in the range of 0.1 to 10 parts by weight 0/0, preferably more preferably 0/0, and 0.5 to 10 parts by weight of the total weight of the composition may comprise from 1 to 5% by weight. That is, in order to ensure the minimum conductivity required for the composition while preventing the electrical resistance from increasing, it is preferable that the conductive polymer is included in an amount of 0.1 wt% or more based on the total weight of the composition. In addition, when the conductive polymer is excessively included in the composition, light transmittance, dispersibility and stability may be lowered.
- the conductive polymer in order to prevent is preferably included in 10 parts by weight 0/0 or less, based on the total weight of the composition.
- the conductive composition according to the embodiment may include a dopant (dopant).
- the dopant is a component for imparting conductivity to the composition together with the above-described conductive polymer, and may include a dopant conventional in the art to which the present invention pertains, and the configuration thereof is not particularly limited.
- the dopant may be dodecylbenzenesulfonic acid, toluenesulfonic acid, chemphosulfonic acid, benzenesulfonic acid, hydrochloric acid, styrenesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, 2-sulfosuccinic acid ester salt, At least one compound selected from the group consisting of sodium 5-sulfoisophthalic acid, dimethyl-5-sodium sulfoisophthalate and 5-sodiumsulfo-bis ( ⁇ -hydroxyethylisophthalate).
- the dopant may be poly (4-styrenesulfonate) in terms of securing conductivity and dispersibility.
- poly (4-styrenesulfonate) hereinafter referred to as 'PSS'
- poly (3,4-ethylene dioxythiophene) hereinafter referred to as 'PEDOT'
- PEDOT-PSS conductive polymer Combined use
- the conductivity of the PEDOT itself is lower than that of ⁇ , it has a conductivity of about 500 s / cm, and exhibits better electrical properties than ITO by forming a suitable interface with the organic active layer.
- the PEDOT is preferably used in the form of PEDOT-PSS by adding the PSS due to the problem of poor solubility and atmospheric stability.
- the PEDOT-PSS is a negative dopant added to the PEDOT, and the PEDOT and the PSS are bonded by electrostatic attraction (see Formula 1 below), and the PEDOT is positively charged by the PSS.
- the gap is made small to give the metallic electron band structure.
- characteristics such as electrical conductivity and work function may change according to the change of the PSS ratio.
- the dopant is the total composition weight basis from 0.1 to 10 parts by weight 0/0, preferably more preferably 0/0, and 0.5 to 10 may be included to increase the 1 to 5% by weight. That is, in view of the electrical resistance and dispersion characteristics of the composition and the effect of the addition of the above-described dopant, the content of the dopant is advantageously controlled in the above-described range.
- the conductive composition according to the embodiment may include a solvent.
- the solvent is particularly preferably a solvent having an intramolecular carbonyl group as the dispersion medium of the conductive composition according to the present invention. That is, according to the present invention, when a solvent having an intramolecular carbonyl group is used as the dispersion medium of the composition, the acidity of the composition may be affected, and the dispersion may be optimized by promoting the expansion of the conductive polymer and the dopant. Accordingly, while the composition coating uniformity can be further improved, the back electrode formed by using the same has a low surface resistance, thereby improving surface electrical conductivity, exhibiting excellent light transmittance and surface hardness, and under high temperature and high humidity conditions. High reliability can be shown.
- the solvent is dimethylformamide, acetylacetone, or a mixture thereof among the solvent having a carbonyl group in the molecule.
- the solvent is more preferably a mixture of dimethylformamide and acetylacetone. That is, when dimethylformamide and acetylacetone are used in combination as compared to the case of using dimethylformamide or acetylacetone alone as the solvent, the expansion of the conductive polymer and the dopant is further promoted, resulting in better dispersion.
- the hardness of the formed rear electrode may be further improved, and the reliability of the rear electrode may be further improved.
- the composition according to the present invention may further include an auxiliary solvent in addition to the solvent having a carbonyl group in the molecule.
- the co-solvent is methyl alcohol, ethyl alcohol, isopropanol, ethylene glycol, butanediol, neopentyl glycol, 1,3-pentanedi, 1,4- cyclonucleic acid di methanol, dietylene glycol, poly Tylene glycol, polybutylene glycol, dimethylolpropane, trimethylolpropane, propylene glycol monomethyl ethylene form, dichloromethane, tetrachloro ethylene, trichloro ethylene, dibromoethane, dibromopropane, normal It may be at least one selected from the group consisting of methyl parlidone, dimethyl sulfoxide, triethylamine, tributylamine, trioctylamine, cresol and water.
- the auxiliary solvent is 1:10 to 1:20, preferably based on the solvent having a carbonyl group in the molecule. And may be mixed in a weight ratio of 1:15 to 1:20.
- the conductive composition according to the present invention is based on 100 parts by weight of isopropyl alcohol; 80 to 150 parts by weight of propylene glycol monomethyl ether; 5 to 30 parts by weight of dimethylformamide, acetylacetone or a combination thereof; And 50 to 120 parts by weight of water may include a mixed solvent.
- the conductive composition according to the present invention is based on 100 parts by weight of isopropyl alcohol; 90 to 110 parts by weight of propylene glycol monomethyl ether; Dimethylformamide, Acetyl Acetone, or Mixtures thereof To 20 parts by weight; And 80 to 100 parts by weight of water may include a mixed solvent.
- the solvent may be included in the total composition by weight based on 60 to 95 parts by weight 0/0, preferably from 70 to 95 weight 0/0, more preferably 80 to 95 wt. 0/0. That is, preferably included in order that the application properties suitable for at least a rear electrode-forming process, while ensuring the stability required for the composition to be obtained, the solvent is more than 60 parts by weight 0/0, based on the total weight of the composition Do.
- the concentration of the conductive polymer may be relatively low, thereby increasing the electrical resistance, and the layer resistance of the back electrode formed using the composition may be deteriorated. is based on the total weight will be included below 95 weight 0/0 is preferred.
- the conductive composition according to the embodiment may include a silane coupling agent.
- the silane coupling agent is a component for further improving the dispersibility of the conductive polymer and the dopant described above, and may include a silane coupling agent which is conventional in the art to which the present invention pertains. It is not limited.
- the silane coupling agent is at least one selected from the group consisting of alkyloxy silanes, amino silanes, vinyl silanes, epoxy silanes, methacryloxy silanes, isocyanate silanes and fluorine silanes. Compound.
- the silane coupling agent is tetraethyloxysilane, vinylylethoxysilane, vinylyl methoxysilane, vinylyltris ((3-methoxyespecially) silane, Y-methacryloxy propyltree Methoxysilane, (3- (3,4-epoxycyclonucleus), methyltri methoxysilane, ⁇ -glycidoxy propyltri methoxysilane, ⁇ -mer captopropyltri methoxysilane, ⁇ -aminopropyl tree Ethoxysilane, ⁇ - ⁇ - (aminoethyl)-l-aminopropyl tri methoxysilane, l- urade propyl triethoxysilane, phenyl triethoxy silane, methyl triethoxy silane, It may be at least one compound selected from the group consisting of methyltrimethoxysilane, polyethylene oxide modified silane,
- the silane coupling agent is increased from 0.1 to 20 0 /, based on the total weight of the composition., Preferably may comprise from 1 to 15% increase, and more preferably 3 to 10% by weight. That is, it is preferably included in the silane coupling agent is 0.1 0/0 or more, based on the total weight of the composition in order to prevent a surface stain phenomenon and surface hardness decreases due to phase separation during application of the composition.
- the coupling can I increase the electrical resistance when included in an amount in excess to the composition, and there is stability of the composition can be even reduced, comprising the silane coupling agent is less than 20 parts by weight 0/0, based on the total weight of the composition
- the conductive composition according to the embodiment may further include additives conventional in the art to which the present invention pertains as necessary.
- the additive as described above may be at least one selected from the group consisting of a binder resin, a surface active agent, and hydrochloric acid or acetic acid dilute solution.
- the amount of the additives may be determined within with all the minimal effect of addition can be expressed does not adversely affect the composition physical property range, and preferably comprise from 0.1 to 5 parts by weight 0/0, based on the total weight of the composition Can be.
- the amount of the additives may be determined within with all the minimal effect of addition can be expressed does not adversely affect the composition physical property range, and preferably comprise from 0.1 to 5 parts by weight 0/0, based on the total weight of the composition Can be.
- a method of forming a back electrode for a liquid crystal display device is provided.
- the method of coating the conductive composition on the substrate may be applied without particular limitation in the conventional coating methods in the art to which the present invention belongs, preferably spray method, doctor blade method, roll coating method, dipping method, etc. have.
- the coating thickness of the composition may be 0.1 to 1 ⁇
- the back electrode of the liquid crystal display may be formed by drying at a temperature of about 150 ° C. to about 150 ° C.
- the conductive composition according to the present invention may be used to form the back electrode of the liquid crystal display device as described above, and may also be applied to the use of a coating film of a conductive polarizing plate that may replace the existing back electrode.
- a coating film of a conductive polarizing plate that may replace the existing back electrode.
- Poly (3,4-ethylenedioxythiophene) and a dopant poly (4-styrene sulfonate) is about 1: 7 heunhap the resin in a weight ratio of (PEDOT-PSS, Manufacturer: hyubeu global) from about 2 parts by weight 0/0 ;
- Silane coupling agent tetraethyloxysilane about 4 parts by weight 0/0;
- Solvent about 92.9 weight 0/0;
- Surfactant to (product name: TEGO-435, manufacturer: TEGO) about 0.1 0/0; Hydrochloric acid and dilution solution (hydrochloric acid 0.03 mol% aqueous solution) from about 1 weight 0/0
- the conductive composition was coated to a thickness of about 0.5 ⁇ on an electrode formed on the substrate, and soft baked for about 180 seconds on a hot plate at a temperature of about 80 ° C. to form a film layer having a thickness of about 300 nm, followed by a temperature of about 120
- the back electrode was formed by drying in an oven at 0 C for about 1 hour.
- Poly (3,4-ethylenedioxythiophene) and a dopant poly (4-styrene sulfonate) is about 1: 7 heunhap the resin in a weight ratio of (PEDOT-PSS, Manufacturer: hyubeu global) from about 2 parts by weight 0/0 ;
- Silane coupling agent tetraethyloxysilane about 4 parts by weight 0/0;
- a surfactant (product name: TEGO-435, manufacturer: TEGO) about 0.1 0/0; And diluted hydrochloric acid solution (hydrochloric acid 0.03 mol% aqueous solution) from about 1 weight 0/0
- the conductive composition was coated to a thickness of about 0.5 ⁇ on an electrode formed on the substrate, and soft baked for about 180 seconds on a hot plate at a temperature of about 80 ° C. to form a film layer having a thickness of about 300 nm, followed by a temperature of about 120
- the back electrode was formed by drying in an oven at ° C for about 1 hour.
- Poly (3,4-ethylenedioxythiophene) and a dopant poly (4-styrene sulfonate) is about 1: 7 heunhap the resin in a weight ratio of (PEDOT-PSS, Manufacturer: hyubeu global) from about 2 parts by weight 0/0 ;
- Silane coupling agent tetraethyloxysilane about 4 parts by weight 0/0;
- Solvent about 92.9 weight 0/0;
- a surfactant (product name: TEGO-435, manufacturer: TEGO) about 0.1 0/0; And diluted hydrochloric acid solution (hydrochloric acid 0.03 mol% aqueous solution) from about 1 weight 0/0
- the conductive composition was coated to a thickness of about 0.5 pm on the electrode formed on the substrate, and soft baked for about 180 seconds on a hot plate at a temperature of about 80 ° C to form a film layer having a thickness of about 300 nm, then the temperature of about 120
- the back electrode was formed by drying in Aubon at ° C for about 1 hour. Comparative Example 1
- Poly (3,4-ethylenedioxythiophene) and a dopant poly (4-styrene sulfonate) is about 1: 7 weight ratio of the resin to the heunhap (PEE3T-PSS, Manufacturer: hyubeu global) from about 2 parts by weight 0/0 ;
- Silane coupling agent tetraethyloxysilane about 4 parts by weight 0/0;
- Solvent about 92.9 weight 0/0;
- a surfactant (product name: TEG0435, Manufacturer: TEGO) about 0.1 0/0; And diluted hydrochloric acid solution (hydrochloric acid 0.03 mol% aqueous solution) from about 1 weight 0/0
- the conductive composition was coated on the electrode formed on the substrate to a thickness of about 0.5 ⁇ , soft baked for about 180 seconds on a hot plate at a temperature of about 80 ° C to form a film layer having a thickness of about 300 nm, then the temperature of about 120
- the back electrode was formed by drying in an oven at ° C for about 1 hour.
- the uniformity, surface resistance, light transmittance, hardness, and 500-hour reliability of the coated surface were evaluated by the following method Or measured and the results are shown in Table 1 below.
- 1) Uniformity of coating surface The appearance of coating surface is observed by electron microscope, and it is very good in case of roughness less than about 2% of coating thickness ( ⁇ ), roughness of about 2 to 5% of coating thickness Was evaluated as good (O) and roughness greater than 5% of the coating thickness as poor (X).
- Hardness was measured based on 1 kgf of load using a pencil hardness tester.
- the back electrode formed using the composition according to Examples 1 to 3 has excellent coating uniformity, It was confirmed that the surface resistance is low, and the light transmittance and hardness are excellent. In particular, the back electrode formed by using the composition according to Examples 1 to 3 was confirmed that the surface resistance in the level of less than 800 in the 500 hours reliability test showed excellent reliability.
- Example 3 as a solvent, a mixture of dimethylformamide and acetylacetone was used, and the hardness of the back electrode was higher than that of the other examples and Comparative Example 1, and more stable reliability was shown.
- Example 3 as a solvent, a mixture of dimethylformamide and acetylacetone was used, and the hardness of the back electrode was higher than that of the other examples and Comparative Example 1, and more stable reliability was shown.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/361,512 US9460826B2 (en) | 2011-12-29 | 2012-12-03 | Conductive composition for forming a ground electrode of a liquid crystal display, and a method of forming a ground electrode using the same |
| JP2014549964A JP6093779B2 (ja) | 2011-12-29 | 2012-12-03 | 液晶表示装置の背面電極形成用導電性組成物およびこれを用いた背面電極の形成方法 |
| CN201280064985.3A CN104025206A (zh) | 2011-12-29 | 2012-12-03 | 液晶显示装置的背面电极形成用导电性组合物及使用其的背面电极的形成方法 |
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| KR10-2011-0146217 | 2011-12-29 | ||
| KR1020110146217A KR102002325B1 (ko) | 2011-12-29 | 2011-12-29 | 액정 표시 장치의 배면전극 형성용 도전성 조성물 및 이를 사용한 배면전극의 형성 방법 |
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| WO2013100421A1 true WO2013100421A1 (ko) | 2013-07-04 |
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| JP (1) | JP6093779B2 (ko) |
| KR (1) | KR102002325B1 (ko) |
| CN (1) | CN104025206A (ko) |
| TW (1) | TWI591649B (ko) |
| WO (1) | WO2013100421A1 (ko) |
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| KR20150068685A (ko) * | 2013-12-12 | 2015-06-22 | 주식회사 동진쎄미켐 | 액정표시장치의 배면전극 형성용 도전성 조성물 |
| CN105824142A (zh) * | 2016-03-08 | 2016-08-03 | 展群科技(深圳)有限公司 | 一种液晶面板防电磁干扰新工法 |
| WO2019150638A1 (ja) * | 2018-02-05 | 2019-08-08 | マクセルホールディングス株式会社 | 透明導電性膜及びその製造方法 |
| CN108538448A (zh) * | 2018-03-14 | 2018-09-14 | 合肥尚强电气科技有限公司 | 一种高分子导电材料的制备方法 |
| JP7340955B2 (ja) * | 2019-05-09 | 2023-09-08 | 信越ポリマー株式会社 | 導電性高分子含有液及びその製造方法、並びに導電性フィルムの製造方法 |
| CN115926094B (zh) * | 2022-12-19 | 2024-08-23 | 广州白云科技股份有限公司 | 一种导电杂化体、利用其制备的带杂化缩合型有机硅导电胶及其制备方法 |
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| KR20050040533A (ko) * | 2003-10-29 | 2005-05-03 | 엘지.필립스 엘시디 주식회사 | 액정표시장치 및 그 제조방법 |
| KR20100047440A (ko) * | 2008-10-29 | 2010-05-10 | 주식회사 동진쎄미켐 | 액정표시장치의 배면전극 형성용 도전성 조성물 |
| KR20100066752A (ko) * | 2008-12-10 | 2010-06-18 | 엘지디스플레이 주식회사 | 횡전계형 액정표시장치용 컬러필터 기판 및 이의 제조방법 |
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| US5136365A (en) * | 1990-09-27 | 1992-08-04 | Motorola, Inc. | Anisotropic conductive adhesive and encapsulant material |
| KR100442408B1 (ko) | 1998-11-05 | 2004-11-06 | 제일모직주식회사 | 고전도성및고투명성을갖는폴리티오펜계전도성고분자용액조성물 |
| WO2004113441A1 (ja) | 2003-06-18 | 2004-12-29 | Shin-Etsu Polymer Co., Ltd. | 導電性組成物、導電性塗料、導電性樹脂、コンデンサ、光電変換素子、およびその製造方法 |
| US7371625B2 (en) | 2004-02-13 | 2008-05-13 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and manufacturing method thereof, liquid crystal television system, and EL television system |
| US8338546B2 (en) * | 2006-02-21 | 2012-12-25 | Skc Co., Ltd. | Composition of polythiophene-based conductive polymers having high conductivity, transparency, waterproof property and a membrane prepared using the same |
| JP2010114066A (ja) * | 2008-10-06 | 2010-05-20 | Fujifilm Corp | 有機導電性高分子塗布液、有機導電性高分子膜、導電体、及び抵抗膜式タッチパネル |
| CN101665616B (zh) * | 2009-09-28 | 2012-01-25 | 中国乐凯胶片集团公司 | 一种基于聚噻吩基的导电聚合物的液体组合物、导电聚合物膜及其用途 |
| FR2957684B1 (fr) * | 2010-03-19 | 2012-08-03 | Evosens | Dispositif de variation optique, ensemble optique et procede de fabrication d'un tel dispositif |
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- 2012-12-03 JP JP2014549964A patent/JP6093779B2/ja active Active
- 2012-12-03 CN CN201280064985.3A patent/CN104025206A/zh active Pending
- 2012-12-03 US US14/361,512 patent/US9460826B2/en active Active
- 2012-12-05 TW TW101145705A patent/TWI591649B/zh active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050040533A (ko) * | 2003-10-29 | 2005-05-03 | 엘지.필립스 엘시디 주식회사 | 액정표시장치 및 그 제조방법 |
| KR20100047440A (ko) * | 2008-10-29 | 2010-05-10 | 주식회사 동진쎄미켐 | 액정표시장치의 배면전극 형성용 도전성 조성물 |
| KR20100066752A (ko) * | 2008-12-10 | 2010-06-18 | 엘지디스플레이 주식회사 | 횡전계형 액정표시장치용 컬러필터 기판 및 이의 제조방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130077487A (ko) | 2013-07-09 |
| US20140326927A1 (en) | 2014-11-06 |
| JP2015510604A (ja) | 2015-04-09 |
| TW201331954A (zh) | 2013-08-01 |
| CN104025206A (zh) | 2014-09-03 |
| US9460826B2 (en) | 2016-10-04 |
| TWI591649B (zh) | 2017-07-11 |
| JP6093779B2 (ja) | 2017-03-08 |
| KR102002325B1 (ko) | 2019-07-23 |
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