Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1995-04-27
1997-02-04
Saras, Steven
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 76, G09G 322
Patent
active
056003439
ABSTRACT:
A multiplexed matrix display screen and a process for controlling same are provided. The screen has n row electrodes (10) and m column electrodes (8), which cross one another, and n control circuits (26i) for successively controlling the n row electrodes, with n and m being integers greater than or equal to 2. At least one control circuit for a row electrode (Li), with i being an integer such that 1<i.ltoreq.n, is provided having means for applying to the row electrode (Li) a selection voltage during a first selection time and then a discharge potential during at least part of a second selection time of at least one other row electrode (Li+1), and for placing the row electrode Li under high impedance outside the first selection time and said part of the second selection time. Control circuits (24) for simultaneously applying to the m column electrodes during the first selection time potentials appropriate for displaying data on row Li are also provided.
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Chang Kent
Commissariat a l''Energie Atomique
Saras Steven
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