Liquid crystal apparatus with temperature-dependent pulse manipu

Details Liquid crystal apparatus with temperature-dependent pulse manipu Liquid crystal apparatus with temperature-dependent pulse manipu

1991-12-26

1994-02-01

Oberley, Alvin E.

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

359 56, 345 94, G09G 336

Patent

active

052835642

ABSTRACT:
Since a fluorescent lamp has a very wide temperature distribution, a large temperature non-uniformity also occurs on a display unit backlighted by the lamp. On the liquid crystal display, the ratio of pulses applied the information and scanning electrodes are controlled in accordance with the temperature change, the overcome the above problem. The ratio of a pulse peak value of a compensation phase part of a scanning selection signal to a pulse peak value of an auxiliary phase part of an information signal may be changed according to a change in temperature.

REFERENCES:
patent: 4655561 (1987-04-01), Kanbe et al.
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patent: 4800382 (1989-01-01), Okada et al.
patent: 4836656 (1989-06-01), Mouri et al.
patent: 4932759 (1990-06-01), Toyono et al.
patent: 4938574 (1990-07-01), Kaneko et al.
patent: 4952032 (1990-08-01), Inoue et al.
patent: 5048934 (1991-09-01), Numao
patent: 5058994 (1991-10-01), Mihara et al.

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