Fast warm-up heater for liquid crystal display

Details Fast warm-up heater for liquid crystal display Fast warm-up heater for liquid crystal display

1986-08-04

1988-09-27

Heyman, John S.

350336, 350351, G02F 113

Patent

active

047737352

ABSTRACT:
A solid state device such as a liquid crystal display (LCD 11) is provided with fast warm up characteristics by using an internal heater (31). The internal heater (31) preferably is located on a backplane, (13) and is used during warmup to supplement a conventional heater (41). The external heater (41) permits the LCD heater system to operate continuously at a selected temperature and not cause deterioration of the LCD (11). The internal heater (31) is electrically isolated from the device's backplane electrodes (17), for example, by the use of a thin oxide layer (33) between the internal heater (31) and the backplane electrodes (17).

REFERENCES:
patent: 3017522 (1962-01-01), Lubcke
patent: 3637291 (1972-01-01), Kessler et al.
patent: 4238759 (1980-12-01), Hunsperger
patent: 4689659 (1987-08-01), Watanabe

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