Voltage driving waveforms for plasma addressed liquid crystal di

Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix

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3151693, 345 68, G09G 336

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active

058051228

ABSTRACT:
A plasma-addressed electro-optic display device having a layer of electro-optic material, data electrodes coupled to the electro-optic layer and adapted to receive data voltages for activating portions of the electro-optic layer, and a plurality of plasma channels extending generally transverse to the data electrodes for selectively switching on the electro-optic portions. The plasma channels each contain spaced elongated cathode and anode plasma electrodes and an ionizable gas filling. The cathode and anode electrodes are arranged in groups to reduce the connections required. Reference voltages are applied to the grouped cathode and anode electrodes such that the data voltages required to operate the panel are reduced decreasing vertical crosstalk. Various driving voltage waveforms can be used for further crosstalk reduction, to reduce the number of voltage levels required, and cause the cathode and anode electrodes to exchange roles during operation to extend lifetime.

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Buzak et al. "A 16-Inch Full Color Plasma Addressed Liquid Crystal Display", Digest of Tech. Papers, 1993 SID Int. Symp., Soc. for Info. Disp. pp. 883-886.

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