Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1997-03-06
2000-10-10
Powell, Mark R.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 60, 445 25, 313586, G09G 328, H01J 926, H01J 1749
Patent
active
06130655&
ABSTRACT:
A plasma-addressed electro-optical display device comprising a layer of electro-optical material (42), data electrodes (18) coupled to the electro-optical layer (42) to receive data voltages for activating portions of the electro-optical layer (42), and a plurality of plasma channels (20) extending generally transverse to the data electrodes (18) for selectively switching on these electro-optical portions. The plasma channels (20) each comprise spaced elongated cathode (30) and anode (31) electrodes and an ionizable gas filling (44). The cathode (30) and anode (31) electrodes are arranged in groups to reduce the number of drivers (28) required to drive the cathode (30) and anode (31) electrodes. To further reduce the total number of drivers of a PALC display device which has more pixels per row than rows, the plasma channels (20) are interchanged with the data electrodes (18). The plasma channels (20) now extending in the column direction and the data electrodes (18) extending in the row direction. The video signal (V) to be displayed has to be converted into data signals supplied to the data electrodes (18) in a column wise way instead of in a row wise way.
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Blackman Anthony J.
Kraus Robert J.
Powell Mark R.
U.S. Philips Corporation
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