Color filter and manufacturing method therefor, display device and electronic equipment
AssigneeSeiko Epson Corporation
InventorTomomi Kawase
Life of this patent
Estimating the term…
Abstract
A color filter is provided which is low cost, has excellent flatness of the over coat layer, and has reduced thickness and excellent light transmittance. The color filter is a filter in which a plurality of colored sections are formed on a substrate, which color filter if made by a method wherein a plurality of concave sections are formed on one surface of the substrate, an ink repellant layer is formed between adjacent concave sections, formation sections are formed comprising the concave sections and the ink repellant layer, and colored sections are then formed in each formation section.
Claims23
A color filter produced by forming a plurality of colored sections on a substrate, comprising:
- a plurality of concave sections formed on one surface of said substrate, an ink repellant layer formed between adjacent concave sections, formation sections formed by said concave sections and said ink repellant layer, said colored sections being formed in each of said formation sections, and a thickness t3 of said colored sections is set to a value less than a depth t1 of said concave sections.
A display device, comprising a color filter on one of a pair of substrates which face each other with a liquid crystal disposed therebetween,
- a plurality of concave sections formed on one surface of said substrate, an ink repellant layer formed between adjacent concave sections, formation sections formed by said concave sections and said ink repellant layer, said color filter being formed by forming a plurality of colored sections in said formation sections, and a thickness t3 of said colored sections is set to a value less than a depth t1 of said concave sections.
A display device comprising a color filter on one of a pair of substrates which face each other with a discharge display section disposed therebetween,
- a plurality of concave sections formed on one surface of said substrate, an ink repellant layer formed between adjacent concave sections, formation sections formed by said concave sections and said ink repellant layer, said color filter being formed by forming a plurality of colored sections in said formation sections, and a thickness t3 of said colored sections is set to a value less than a depth t1 of said concave sections.
A color filter manufacturing method, comprising:
- forming an ink repellant layer on one surface of a substrate;
- forming concave sections by patterning said ink repellant layer and etching said substrate thus exposed;
- and
- forming colored sections by discharging colored ink into formation sections formed by said concave sections and said ink repellant layer and subsequently drying said colored ink;
- and
- setting a thickness t3 of said colored sections to a value less than a depth t1 of said concave sections.
Dependencies are inferred from the claim text.