Color filter and method of fabricating a color filter

Details Color filter and method of fabricating a color filter Color filter and method of fabricating a color filter

1992-07-22

1994-12-20

McCamish, Marion E.

Radiation imagery chemistry: process, composition, or product th

Radiation modifying product or process of making

Screen other than for cathode-ray tube

359 68, G03F 900

Patent

active

053744934

ABSTRACT:
The present invention is a color filter and method of making a color filter in which a reactive dye is added to a photosensitive composite, which contains pigment to form the color filter, and the reactive dye reacts with the binder polymer of the photosensitive composite to form a color filter having a high contrast color filter. The photosensitive composite, which has a primary color and which contains the product of the binder polymer and the reactive dye, is deposited on a glass substrate over a shielding layer. A layer of PVA is then deposited on the photosensitive composite layer. A masking layer then defines the area of the specific primary color for the photosensitive composite. This process is then repeated for the remaining primary colors of the color filter. The color filter produced by this process has a very high contrast ratio.

REFERENCES:
patent: 4781444 (1988-11-01), Suginoya et al.
patent: 4934791 (1990-06-01), Shimizu et al.
patent: 5085973 (1992-02-01), Shimizu et al.

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