Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1996-07-17
1999-04-06
Saras, Steven J.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345100, 349 37, G09G 336
Patent
active
058924930
ABSTRACT:
The quality of an image is improved even if the duration of data voltage is short for application. A gate line driver 34 sequentially applies the gate voltage to a number of gate lines G1-Gm by predetermined duration. Data lines are grouped into four groups each consisting of n lines (d1A-dnA: group A, d1B-dnB: group B, d1C-dnC: group C, and d1D-dnD: group D). A data line driver 40 and a multiplexer 38 sequentially perform for the data line groups A-D in the above predetermined duration application of data voltage to each data line in a predetermined data line group. A precharge controller 44 and a voltage switching circuit 46 apply to each of the data line groups A-D, through a transistor 42, a precharge voltage (+V.sub.1 or -V.sub.1) with the same polarity with that of data voltage being applied next time during the time from previous application of the data voltage to next application of it.
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Enami Kunio
Tomooka Takatoshi
Drumheller Ronald L.
International Business Machines - Corporation
Saras Steven J.
Vail Seth D.
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