Method of driving a liquid crystal matrix display panel

Details Method of driving a liquid crystal matrix display panel Method of driving a liquid crystal matrix display panel

1988-04-24

1989-07-04

Yusko, Donald J.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340765, 340805, G09G 336

Patent

active

048454737

ABSTRACT:
A method of driving a matrix-type liquid crystal display panel comprising the step of dividing each scan pulse delivered to a plurality of row electrodes connected to the liquid crystal panel into plural scan periods; supplying video signal data via real-time operation during the initial divided period during alernate scan periods; generating new and proper signal source during the rest of the scan periods; and supplying data from the new signal source so that data can be written into liquid crystal layers. When dividing the width of the scan pulse into n pulses, the frame frequency can be raised n-times, thus making it possible to achieve a satisfactory liquid crystal picture display without the slightest flicker.

REFERENCES:
patent: 3787834 (1974-01-01), Elliott
patent: 4275421 (1981-06-01), Louie et al.
patent: 4317115 (1982-02-01), Kawakami et al.
patent: 4481511 (1984-11-01), Hanmura et al.
patent: 4525710 (1985-06-01), Hoshi et al.
patent: 4536060 (1985-08-01), Takamatsu et al.

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