Process for producing color filter plate and color filter plate

Details Process for producing color filter plate and color filter plate Process for producing color filter plate and color filter plate

1994-03-07

1995-11-07

Rosasco, S.

Radiation imagery chemistry: process, composition, or product th

Radiation modifying product or process of making

Screen other than for cathode-ray tube

430 27, 430326, 430329, G03F 900

Patent

active

054647142

ABSTRACT:
A color filter plate suitable for inclusion in a color liquid crystal display panel is produced through a process including the steps of (a) forming a color filter pattern on a transparent substrate, (b) forming a light-interrupting mask layer over the color filter pattern, (c) abrading the mask layer with an abrasive to expose the color filter pattern and leave a patterned mask layer contiguous with the color filter pattern, and (d) coating the color filter pattern and the patterned mask layer with a protective layer. As a result, it becomes possible to omit a step of patterning the mask layer and an exposure mask for the patterning, so that the process is simplified, the production cost is lowered and the latitude of the mask-forming material is increased.

REFERENCES:
patent: 4370396 (1983-01-01), Sato et al.

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