Passive matrix LCD with drive circuits at both ends of the scan

Details Passive matrix LCD with drive circuits at both ends of the scan Passive matrix LCD with drive circuits at both ends of the scan

1993-03-02

2000-07-18

Brier, Jeffery

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 94, 345204, G09G 336, G09G 500

Patent

active

060913924

ABSTRACT:
The present invention is directed to a flat display device and the driving method thereof having a plurality of display picture elements which are defined by liquid crystal cell portions formed between the scanning and the signal electrodes arranged in the form of a matrix wherein at least scanning electrodes of said scanning and signal electrodes are driven from both terminals of the electrodes by individual driving circuits. A circuit is also included that creates a short circuit across the electrode thus protecting the flat display panel from degradation due to excessive current flowing across the panel before the voltage waveform is stabilized.

REFERENCES:
patent: 4346378 (1982-08-01), Shanks
patent: 4427997 (1984-01-01), Hareng et al.
patent: 4789857 (1988-12-01), Maurice
patent: 4803480 (1989-02-01), Soneda et al.

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