TFT LC display having polychromatic glass color filters

Details TFT LC display having polychromatic glass color filters TFT LC display having polychromatic glass color filters

1987-01-28

1988-05-10

Miller, Stanley D.

350334, 65 301, 65 3011, G02F 113

Patent

active

047430982

ABSTRACT:
The color filters required for a thin film transistor liquid crystal display device are provided by using polychromatic glass for either the front or rear glass panel of the device. Through a series of masking, ultraviolet exposure and heat treating steps, red, green, and blue color areas can be generated in the polychromatic glass. Each of the different colored areas is, of course, to be aligned with one of the individually-addressable pel electrodes in the device. Two embodiments are described. In the first, the polychromatic glass forms the rear glass panel of the device and serves as a substrate for the thin film transistors used to individually address pel electrodes. In an alternate embodiment, the front glass panel of device is treated to form the color filter regions.

REFERENCES:
patent: 3840695 (1974-10-01), Fischer
patent: 4057408 (1977-11-01), Pierson et al.
patent: 4662720 (1987-05-01), Fergason

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