Liquid crystal display device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 16, 2003
Grant Date -
N/A
app pub date -
Nov 9, 2000
filing date -
Mar 30, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a color liquid crystal display device, two capacitors are connected in parallel between a pixel signal line and an electrode of a liquid cell, or one of the capacitors is connected therebetween, or none of the capacitors are connected therebetween, in order to selectively set a potential of the electrode of the liquid crystal cell in any of four steps. Therefore, gradation display in four steps can be achieved without a digital-to-analog conversion circuit, so that the cost of the device can be reduced.
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