Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1996-09-10
1999-07-27
Hjerpe, Richard A.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 94, 345 97, G09G 0336
Patent
active
059298332
ABSTRACT:
A matrix liquid crystal display using an antiferroelectric liquid crystal prevents the displayed image from tailing off. The liquid crystal display includes a liquid crystal panel, a temperature sensor, a control unit, a scanning electrode driver circuit, and a signal electrode driver circuit. When the temperature of the liquid crystal panel is detected by the temperature sensor, the control unit increases or reduces the de-select period according to the detected temperature. The scanning electrode driver circuit and the signal electrode driver circuit serve to drive scanning electrodes and signal electrodes, respectively included in the liquid crystal panel according to control signals from the control unit and from a level converter. These control signals include a signal indicating the controlled de-select period. Thus, the controlled de-selected period is secured.
REFERENCES:
patent: 4745403 (1988-05-01), Tamura
patent: 4917469 (1990-04-01), Ross
patent: 5011269 (1991-04-01), Wakita et al.
patent: 5459481 (1995-10-01), Tanaka et al.
Optronics (1994) No. 2 pp. 58-61.
Koshobu Nobuaki
Tokunaga Masao
Hjerpe Richard A.
Nguyen Francis N.
Nippondenso Co. Ltd.
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