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US 4,593,977 AGranted
Cell construction for color liquid crystal display devices
AssigneeSharp Kabushiki Kaisha
InventorsToshiaki Takamatsu, Fumiaki Funada, Masataka Matsuura, Tatuo Uchida
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Abstract
A color liquid crystal display device as disclosed uses a color filter in a liquid crystal cell in which a layer of a polymide resin for orientation of liquid crystal molecules is provided to cover the color filter or the orientation layer of liquid crystal molecules contains a dye or like coloring substance to form a combined orientation and color filter layer.
Claims4
A color matrix liquid crystal device comprising in combination;
- (a) a light source,
- (b) a pair of polarizers having a pair of opposing transparent substrates sandwiched therebetween,
- (c) a pair of transparent linear electrodes facing each other provided on each of said substrates to form a matrix electrode structure wherein the intersections of the electrodes define picture elements for display,
- (d) a liquid crystal composition provided between said substrates, and
- (e) transparent layers for orientation of said liquid crystal composition formed over the surface of each of said electrodes, each of said orientation layers being composed of a polyimide resin containing transparent red, green and blue inks, to form a combined color filter and liquid crystal orientation layer, said layer providing red, green and blue (RGB) patterns corresponding to said picture elements.
2 more elements
Dependencies are inferred from the claim text.