Method of printing a color filter

Details Method of printing a color filter Method of printing a color filter

1993-11-03

1996-07-16

Funk, Stephen

Printing

Multicolor

Processes

101 34, 101 35, 101151, 101170, 101175, 1014241, 101491, 101492, 156235, 156240, 427165, 427511, B41M 120

Patent

active

055356737

ABSTRACT:
A color filter for an AMLCD panel has a pattern of multi-color dots, each dot having red, green, and blue components in a black matrix. Each component is the cured product of a color pigment dispersed in a radiation-curable ink. The ink may be an ink curable by a cationic mechanism, a free-radical ink, or a hybrid, free-radical/cationic ink. The filter is produced by successively applying patterns of colored inks to a transfer roll, collecting the patterns on a collector roll to form an array of multi-color dots that is transferred to the substrate, and irradiating the array of dots to at least partially cure the inks.

REFERENCES:
patent: 4035214 (1977-07-01), Shuppert et al.
patent: 4209551 (1980-06-01), Masaki et al.
patent: 4445432 (1984-05-01), Ford, Jr. et al.
patent: 4549928 (1985-10-01), Blanding et al.
patent: 4836102 (1989-06-01), Cicci
patent: 5127330 (1992-07-01), Okazaki et al.
K. Mizuno and S. Okazaki, Printing Color Filter for Active Matrix Liquid-Crystal Display Color Filter, Japanese Journal of Applied Physics, vol. 30, No. 118, Nov. 1991, pp. 3313-3317.
K. Leyama et al., Color Filter for Liquid Crystal Display, International Flat Panel Display Conference, SEMI-SEMICON/West '92, Section B-41 - B-59.
W. C. O'Mara, Active Matrix Liquid Crystal Displays Part I: Manufacturing Process, Solid State Technology, Dec. 1991, pp. 65-70.
K. Ikiaki, Low Cost Technology for Producing LCD Color Filters Transfer Print Method, Nikkei MI, Vol: 58, pp. 83-87 (90-04).

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