Data line driving circuit of electro-optical panel, control method thereof, electro-optical device, and electronic apparatus
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United States of America Patent
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-
Jan 27, 2004
Grant Date -
Jan 3, 2002
app pub date -
Apr 25, 2001
filing date -
Apr 26, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The disclosed invention reduces the power consumption of a liquid-crystal device. A shift register section includes DX selection circuits and shift registers, which are divided into blocks. An X clock signal is supplied to a block in which the image data values do not match between horizontal lines which are adjacent in a data time-series manner, and is not supplied to a block in which the image data values match. In addition, for the block in which the image data values match, the image data, which forms time-division data becomes non-active, and the previous data value is maintained. For this reason, it is possible to reduce electric power for driving an X clock signal supply line and an image data supply line.
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