Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1995-12-01
1997-08-05
Powell, Mark R.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345209, G02F 113
Patent
active
056547331
ABSTRACT:
An active matrix liquid crystal electrooptical device consuming only a small amount of electric power without producing flicker. The electrooptical device comprises a plurality of pixels arranged in rows and columns. Each pixel has a switching element. Scanning lines for turning on and off the switching elements and signal lines to which display signals are produced are connected with the pixels. The device further includes plural signal line driver circuits. Each driver circuit produces a display signal to the corresponding signal line. Each display signal exhibits one polarity during one frame period. The polarity of the display signal produced by at least one of the driver circuits is different from the polarity of the display signal produced by the other driver circuit. The polarity is inverted every frame. The signal lines connected with any one of the driver circuits are connected with the pixels which are, in turn, connected with one of the scanning lines.
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Chimura Hidehiko
Koyama Jun
Butts Karlton C.
Ferguson Jr. Gerald J.
Kovalick Vincent E.
Powell Mark R.
Semiconductor Energy Laboratory Co,. Ltd.
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