Color member and method for manufacturing same
AssigneeSeiko Instruments & Electronics Ltd.
InventorsNaoki Kato, Koji Iwasa, Hitoshi Kamamori, Mitsuru Suginoya, Yutaka Sano, Yumiko Terada
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Abstract
A colored article, e.g., a multicolored filter for a display device, comprises a first electroconductive layer with a low resistance formed on a substrate. A second electroconductive layer resistant to electrolytic corrosion and comprised, e.g., of SnO.sub.2, Sb.sub.2 O.sub.3, ZnO, CdO, Ga.sub.2 O.sub.3, Au, Ag, Ni, Al and Si, is formed directly on the first layer. A color layer is formed on the second layer by electrodeposition to impart a desired color tone to the article.
Claims39
A colored article comprising:
- a substrate;
- a first electroconductive layer disposed on said substrate;
- a second electroconductive layer directly superposed on said first electroconductive layer, the second electroconductive layer being comprised of a material selected from the group consisting of tin oxide, antimony oxide, zinc oxide, cadmium oxide, gallium oxide, germanium oxide, gold, silver, nickel, aluminum and silicon;
- and a colored layer superposed on the second electroconductive layer.
A color filter comprising:
- a substrate;
- a first electroconductive layer disposed on said substrate;
- a second electroconductive layer directly superposed on said first electroconductive layer;
- the second electroconductive layer being comprised of a material selected from the group consisting of tin oxide, antimony oxide, zinc oxide, cadmium oxide, gallium oxide, germanium oxide, gold, silver, nickel, aluminum and silicon;
- and a colored layer superposed on the second electroconductive layer.
A method for manufacturing a colored article comprising the steps of:
- forming a first electroconductive layer on a substrate;
- forming a second electroconductive layer on said first electroconductive layer, the second electroconductive layer being made of a material selected from the group consisting of tin oxide, antimony oxide, zinc oxide, cadmium oxide, gallium oxide, germanium oxide, gold, silver, nickel, aluminum and silicon;
- and forming a colored layer on said second electroconductive layer by co-electrodepositing an organic coloring material and a polymer on said second electroconductive layer.
A method for manufacturing a multicolored article comprising the steps of:
- forming a plurality of first electroconductive layers on a substrate;
- forming a plurality of second electroconductive layers superposed of said first electroconductive layers, the second electroconductive layers being made of a material selected from the group consisting of tin oxide, antimony, oxide, zinc oxide, cadmium oxide, gallium oxide, germanium oxide, gold, silver, nickel, aluminum and silicon;
- and forming a plurality of colored layers of different colors on respective ones of said second electroconductive layers by co-electrodepositing a coloring material of a different color and a polymer on said second electroconductive layers.
A method for manufacturing a multicolored filter comprising the steps of:
- forming a plurality of electroconductive layers on a substrate;
- forming a plurality of second electroconductive layers superposed on said first electroconductive layers, the second electroconductive layers being made of a material selected from the group consisting of tin oxide, antimony oxide, zinc oxide, cadmium oxide, gallium oxide, germanium oxide, gold, silver, nickel, aluminum and silicon;
- and forming a plurality of colored layers of different colors on respective ones of the second electroconductive layers by co-electrodepositing a coloring material of a different color and a polymer of said second electroconductive layers.
A colored article comprising:
- a substrate;
- a first electroconductive layer formed on the substrate;
- a second electroconductive layer formed directly on the first electroconductive layer and having a resistance to electrolytic corrosion superior to that of the first electroconductive layer to thereby protect the first electroconductive layer from electrolytic corrosion;
- and a third layer containing coloring material uniformly electrolytically deposited and permanently fixed on the second electroconductive layer to thereby impart a desired non-changeable color tone to the article.
A display device including the color filter as claimed in claim 31;
- wherein the first layer defines a display electrode.
A method of manufacturing a colored article comprising the steps of:
- forming a first electroconductive layer on a substrate in a given pattern;
- forming a second electroconductive layer, which is more immune to electrolytic corrosion than the first electroconductive layer, directly on the first electroconductive layer to thereby chemically protect the first electroconductive layer;
- immersing the substrate in an electrodeposition bath containing a coloring material;
- and applying a voltage to the first electroconductive layer to electrodeposit the coloring material on the second electroconductive layer to form a colored layer having an unchanging color tone.
Dependencies are inferred from the claim text.