Method for manufacturing color filter and multiple color liquid

Details Method for manufacturing color filter and multiple color liquid Method for manufacturing color filter and multiple color liquid

1995-02-28

1997-11-04

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349106, G02F 11333, G02F 11335

Patent

active

056845537

ABSTRACT:
A method of manufacturing a color filter comprises forming first transparent electrodes on a substrate. Colored layers are then formed on the first transparent electrodes followed by second transparent electrodes being formed over the colored layers. Thereafter, predetermined portions of the colored layers and the second transparent electrodes are removed by, for example, a laser such that gaps exist between the colored layers. Finally, a light shielding film is formed in a lattice pattern over the second transparent electrodes and in the gaps between the colored layers. By removing selected portions of the colored layers and the second transparent electrodes prior to forming the light shielding film, a color filter is provided with a lattice-shaped light shielding film which can be used in color liquid crystal display devices employing thin film transistors.

REFERENCES:
patent: 4006968 (1977-02-01), Ernstoff et al.
patent: 4828363 (1989-05-01), Yamazaki
patent: 5142392 (1992-08-01), Ueki et al.
patent: 5340619 (1994-08-01), Chen et al.
patent: 5367393 (1994-11-01), Ohara et al.
patent: 5508134 (1996-04-01), Shirai
1989 SID International Digest Symposium, Digest of Technical Papers, vol. 20, May 16-18, 1989, Baltimore, MD, pp. 378-381, 438, S. Yamauchi et al., "Homeotropic-Alignment Full-Color LCD".
Displays, vol. 14, No. 2, 1993, Jordan Hill, GB, pp. 115-124, K. Tsuda, "Colour Filters for LCDs".

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