Driving circuit of liquid crystal display which has delay means

Details Driving circuit of liquid crystal display which has delay means Driving circuit of liquid crystal display which has delay means

1991-08-23

1992-10-13

Miller, Stanley D.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

340789, 307592, 307597, 307603, 307605, G02F 113, H03K 513

Patent

active

051556138

ABSTRACT:
A driving circuit for liquid crystal display is disclosed and includes a circuit for outputting driving signals to a ferroelectric liquid crystal display in order to construct visual information in the display and a voltage source for supplying a predetermined voltage such that when the display system is switched off the circuit means outputs an erasing signal to the liquid crystal display for erasing all of the visual information displayed in the display and eliminates phantom figures from appearing when the display is reused.

REFERENCES:
patent: 4050064 (1977-09-01), Hashimoto
patent: 4099073 (1978-07-01), Hashimoto et al.
patent: 4158786 (1979-06-01), Hirasawa
patent: 4405868 (1983-09-01), Lockwood
patent: 4646074 (1987-02-01), Hashimoto
patent: 4748444 (1988-05-01), Arai
patent: 4802739 (1989-02-01), Iwamoto
patent: 4824218 (1989-04-01), Kuno et al.
patent: 4870398 (1989-09-01), Bos

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