Television receiver with liquid crystal matrix display panel

Facsimile and static presentation processing – Facsimile – Recording apparatus

Patent

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Details

340784, H04N 570, H04N 314

Patent

active

046301224

ABSTRACT:
A television receiver is equipped with a liquid crystal matrix display panel having the drive electrodes arranged such as to form a plurality of regions, with the regions each successively entering a drive phase of operation in which selection and bias drive signals are applied to the display element electrodes and a rest phase of operation in which a voltage level substantially equal to zero is applied between the display element electrodes, with only one region operating in the drive phase at a time and the remaining regions operating in the rest phase. The display contrast attainable with a given number of rows of picture elements in the display can thereby be substantially increased, e.g. can be effectively doubled for the case of a display divided into two regions, without the need to utilize large-capacity video memory circuits.

REFERENCES:
patent: 3976362 (1976-08-01), Kawakami
patent: 4370647 (1983-01-01), Brantingham
patent: 4393405 (1983-07-01), Ikeda
patent: 4447131 (1984-05-01), Soma
patent: 4462027 (1984-07-01), Lloyd
patent: 4481511 (1984-11-01), Hanmura et al.
patent: 4511926 (1985-04-01), Crossland et al.

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