Apparatus and method for printing a color filter

Radiation imagery chemistry: process – composition – or product th – Radiation modifying product or process of making – Screen other than for cathode-ray tube

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430 20, 430321, 359891, 156240, G03F 900

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active

055145035

ABSTRACT:
A method and apparatus for making color filters for liquid crystal display panels. A transfer layer is formed on a collector roll, and a raised pattern corresponding to the desired black matrix pattern is formed on the transfer layer by an embossing means. A plurality of colored ink patterns is formed in the appropriate location within the boundaries formed by the raised pattern, thereby forming the multicolor image that will become the color filter. This multicolored image is then transferred to the substrate. Preferably, the multicolored ink pattern is deposited to a substrate while in a deformable state, flattened during the deposition process, and the deformed, more uniform shape of the printed cells is thereafter retained, preferably by curing during deposition to the substrate.

REFERENCES:
patent: 4035214 (1977-03-01), Shuppert et al.
patent: 5053298 (1991-10-01), Park et al.
patent: 5127330 (1992-07-01), Okazaki et al.
Printing Color Filter for Active Matrix Liquid-Crystal Display Color Filter, by Katsuhiko Mizuno and Satoshi Okazaki, Japanese Journal of Applied Physics, vol. 30, No. 11B, Nov. 1991, pp. 3313-3317.

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