Addressing liquid crystal cells using unipolar strobe pulses

Details Addressing liquid crystal cells using unipolar strobe pulses Addressing liquid crystal cells using unipolar strobe pulses

1986-04-02

1987-11-10

Miller, Stanley D.

Communications: electrical

Land vehicle alarms or indicators

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

340784, 350333, G02F 1137, G09G 336

Patent

active

047053453

ABSTRACT:
A method of addressing a matrix addressed ferroelectric liquid crystal cell is described that uses parallel entry of balanced bipolar data pulses on one set of electrodes to co-operate with serial entry of unipolar strobe pulses on the other set of electrodes. Data entry is preceded with blanking (erasing) pulses applied to the strobe lines. The polarity of the strobing and blanking pulses is periodically reversed to maintain charge balance in the long term.

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