Color filter layer of a liquid crystal display

Details Color filter layer of a liquid crystal display Color filter layer of a liquid crystal display

1990-05-23

1991-08-13

Miller, Stanley D.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 68, G02F 1133

Patent

active

050392042

ABSTRACT:
In a liquid crystal display comprising upper and lower transparent glass substrates, an array of thin film transistors and a liquid crystal layer sealingly filled between said upper and lower glass substrates, a color filter layer if provided, comprising, a plurality of color filters laid in a mosaic pattern on the upper glass substrate, said color filters comprising red, green and blue dyes said color filter layer further comprising, a black matrix disposed between said color filters to block the light rays incident between them, and lower glass substrates, a color filter layer comprising a said black matrix having a three-layer structure comprising a silicon nitride film, a light absorbing layer and a chromium layer sequentially deposited on said upper glass substrate.

REFERENCES:
patent: 4653862 (1987-03-01), Morozumi
patent: 4733948 (1988-03-01), Kitahara
patent: 4853296 (1989-08-01), Fukuyoshi
patent: 4867537 (1989-09-01), Acki et al.
patent: 4881797 (1989-11-01), Aoki et al.
patent: 4934791 (1990-06-01), Shimizu et al.

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