Abstract: A transparent electro-conductive structure comprising a transparent substrate and formed successively thereon a transparent electro-conductive layer and a transparent coat layer, which is used, e.g., front panels of display device such as CRTs. The transparent electro-conductive layer is composed chiefly of i) noble-metal-coated fine silver particles having an average particle diameter of from 1 nm to 100 nm, the fine silver particles being surface-coated with gold or platinum alone or a composite of gold and platinum, and ii) a binder matrix. A transparent electro-conductive layer forming coating fluid used in the production of this transparent conductive structure comprises a solvent and noble-metal-coated fine silver particles dispersed in the solvent and having an average particle diameter of from 1 nm to 100 nm, the fine silver particles being surface-coated with gold or platinum alone or a composite of gold and platinum.

Abstract: A thin conductive film which excels in film strength, weather resistance, transparency, and electric field shielding effect is formed on a glass substrate at a low temperature as a multilayer film which is formed of an ITO-dispersed silicate layer and an overcoat silicate layer, or at least two layers of an ITO dispersed silicate and a high-conductivity oxide-dispersed silicate, and a topmost layer of an overcoat silicate. The ITO dispersed silicate layer includes ultra fine particles of indium tin oxide and a silicate-based glass matrix, and the high-conductivity oxide-dispersed silicate layer consists of includes ultra fine particles selected from the group of ruthenium dioxide, rhenium trioxide, iridium dioxide, rhodium dioxide and irridium-based pyrochlore and a silicate-based glass matrix.

Abstract: Disclosed are a powder of indium-tin oxide aciculae suitable as an electroconductive filler for an electroconductive ink to be used for forming a transparent electroconductive film, a method for producing a raw material to be used for producing the powder of indium-tin oxide aciculae, which has a major diameter of 5 .mu.m or more and a ratio of the major diameter to the minor diameter of 5 or more, an electroconductive paste capable of forming a light-transmitting electroconductive film having sufficient electroconductivity and light transmittance by printing, such as screen-printing, followed by high-temperature baking, and a light-transmitting electroconductive film to be formed from the paste. The raw material is produced by heating and concentrating an aqueous solution containing indium ions and nitrato ions to form a high-viscosity slurry followed by separating a powder of aciculae from the slurry. By calcining the raw material, a powder of indium-tin oxide aciculae is produced.

Abstract: Disclosed are a powder of indium-tin oxide aciculae suitable as an electroconductive filler for an electroconductive ink to be used for forming a transparent electroconductive film, a method for producing a raw material to be used for producing the powder of indium-tin oxide aciculae, which has a major diameter of 5 .mu.m or more and a ratio of the major diameter to the minor diameter of 5 or more, an electroconductive paste capable of forming a light-transmitting electroconductive film having sufficient electroconductivity and light transmittance by printing, such as screen-printing, followed by high-temperature baking, and a light-transmitting electroconductive film to be formed from the paste. The raw material is produced by heating and concentrating an aqueous solution containing indium ions and nitrato ions to form a high-viscosity slurry followed by separating a powder of aciculae from the slurry. By calcining the raw material, a powder of indium-tin oxide aciculae is produced.

Abstract: Disclosed are a powder of indium-tin oxide aciculae suitable as an electroconductive filler for an electroconductive ink to be used for forming a transparent electroconductive film, a method for producing a raw material to be used for producing the powder of indium-tin oxide aciculae, which has a major diameter of 5 .mu.m or more and a ratio of the major diameter to the minor diameter of 5 or more, an electroconductive paste capable of forming a light-transmitting electroconductive film having sufficient electroconductivity and light transmittance by printing, such as screen-printing, followed by high-temperature baking, and a light-transmitting electroconductive film to be formed from the paste. The raw material is produced by heating and concentrating an aqueous solution containing indium ions and nitrato ions to form a high-viscosity slurry followed by separating a powder of aciculae from the slurry. By calcining the raw material, a powder of indium-tin oxide aciculae is produced.

Abstract: A transparent, electroconductive ink having therein ultra-fine ITO particles dispersed in a solvent or in a solvent containing a resin dissolved therein is coated and dried on a transparent support, then dried and optionally baked, and thereafter an overcoating liquid consisting essentially of silica sol is coated over the resulting transparent, electroconductive film formed on the support. This is then dried and optionally baked to obtain a transparent, electroconductive substrate having a specific resistance of 0.01 to 0.5 .OMEGA..multidot.cm, a haze value of 0 to 2%, and a volume content of the ultra-fine ITO particles in the film of being 40 to 75%. The substrate has a small surface resistivity and has excellent optical characteristics and weather resistance.

Abstract: A transparent, electroconductive ink having therein ultra-fine ITO particles dispersed in a solvent or in a solvent containing a resin dissolved therein is coated and dried on a transparent support, then dried and optionally baked, and thereafter an overcoating liquid consisting essentially of silica sol is coated over the resulting transparent, electroconductive film formed on the support. This is then dried and optionally baked to obtain a transparent, electroconductive substrate having a specific resistance of 0.01 to 0.5 .OMEGA..cm, a haze value of 0 to 2%, and a volume content of the ultra-fine ITO particles in the film of being 40 to 75%. The substrate has a small surface resistivity and has excellent optical characteristics and weather resistance.

Abstract: Disclosed are a powder of indium-tin oxide aciculae suitable as an electroconductive filler for an electroconductive ink to be used for forming a transparent electroconductive film, a method for producing a raw material to be used for producing the powder of indium-tin oxide aciculae, which has a major diameter of 5 .mu.m or more and a ratio of the major diameter to the minor diameter of 5 or more, an electroconductive paste capable of forming a light-transmitting electroconductive film having sufficient electroconductivity and light transmittance by printing, such as screen-printing, followed by high-temperature baking, and a light-transmitting electroconductive film to be formed from the paste. The raw material is produced by heating and concentrating an aqueous solution containing indium ions and nitrato ions to form a high-viscosity slurry followed by separating a powder of aciculae from the slurry. By calcining the raw material, a powder of indium-tin oxide aciculae is produced.

Abstract: A transparent conductive substrate comprising a base plate member allowing transmission therethrough of visible light, a transparent, overcoat layer formed on the base plate member, and a transparent conductive film which is formed on the overcoat layer, containing ultra-fine particles of indium-tin oxide having a particle size of 0.1 .mu.m or smaller, having light transmittance of 70% or higher and exhibiting surface resistance of 200 .OMEGA./.quadrature. lower. This transparent conductive substrate has low surface resistance and excellent optical characteristics.

Abstract: A transparent conductive substrate comprising a base plate member allowing transmission therethrough of visible light, a transparent overcoat layer formed on the base plate member, and a transparent conductive film which is formed on the overcoat layer, containing ultra-fine particles of indium-tin oxide having a particle size of 0.1 .mu.m or smaller, having light transmittance of 70% or higher and exhibiting surface resistance of 200 .OMEGA./.quadrature. or lower. This transparent conductive substrate has low surface resistance and excellent optical characteristics.