Etch method for manufacturing a color filter

Details Etch method for manufacturing a color filter Etch method for manufacturing a color filter

1993-07-21

1994-11-15

Powell, William

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156652, 156655, 156657, 1566591, 156663, B44C 122, C03C 1500

Patent

active

053644980

ABSTRACT:
A color filter is made by depositing a plurality of interference films on a substrate of black matrix material. The films are then selectively etched so that different numbers of films are removed at different locations. The color of the filter at a particular location depends on the number of films remaining at the location after etching.

REFERENCES:
patent: 2731333 (1956-01-01), Ko et al.
patent: 3503815 (1970-03-01), Johnson
patent: 3542453 (1970-11-01), Kantor
patent: 3914464 (1975-10-01), Thomasson et al.
patent: 4894116 (1990-01-01), Barrow et al.
patent: 5190794 (1993-03-01), Yoshino et al.

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