Liquid crystal display device and driving method therefor

Details Liquid crystal display device and driving method therefor Liquid crystal display device and driving method therefor

1991-08-07

1996-10-01

Hjerpe, Richard

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

359 67, G02F 1133, G09F 935

Patent

active

055614400

ABSTRACT:
A liquid crystal active matrix display device includes a first substrate having a thin film transistor formed thereon. A light-screening film 1 is located on the first substrate in a manner to be overlapped with an ITO. The display device includes a second substrate having a color filter and a light-screening film 2 formed thereon. The second substrate is opposed to the first substrate. The light-screening film 2 extends from the uncontrollable area by a certain value depending on a voltage from the external, resulting in improving a numerical aperture.

REFERENCES:
patent: 4103297 (1978-07-01), McGreivy et al.
patent: 4770498 (1988-09-01), Aoki et al.
patent: 4824213 (1989-04-01), Morokawa
patent: 5132830 (1992-07-01), Fukutani et al.
patent: 5162933 (1992-11-01), Kakuda et al.
patent: 5327001 (1994-07-01), Wakai et al.

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