Temperature compensation apparatus for liquid crystal display

Details Temperature compensation apparatus for liquid crystal display Temperature compensation apparatus for liquid crystal display

1991-07-05

1995-05-09

Weldon, Ulysses

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 89, 345101, G09G 336

Patent

active

054144418

ABSTRACT:
Driving apparatus for a liquid crystal display. The apparatus includes a square wave generator which drives an operational amplifier. The operational amplifier has a pair of parallel feedback paths, one of which is a capacitive feedback path and the other of which is a resistive feedback path. Automatic temperature compensation is provided by incorporating a thermistor in the resistive feedback path. The output signal from the operational amplifier varies in a linear manner with temperature so as to produce an optimal drive for the liquid crystal display.

REFERENCES:
patent: 4128311 (1978-12-01), Smith et al.
patent: 4326171 (1982-04-01), Shaw et al.
patent: 4338600 (1982-07-01), Leach
patent: 4425027 (1984-01-01), Portmann
patent: 4687956 (1987-08-01), Itoh et al.
patent: 4807972 (1989-02-01), Klosterboer
patent: 4919520 (1990-04-01), Okada et al.
patent: 4923285 (1990-05-01), Ogino et al.
patent: 4945352 (1990-07-01), Ejiri
patent: 4952032 (1990-08-01), Inou

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