Display device
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United States of America Patent
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Mar 20, 2018
Issued Date -
N/A
app pub date -
Nov 29, 2006
filing date -
Dec 2, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
An object of the present invention is to provide a display device which consumes less electric power by reducing the number of times to output sampling pulses in a pulse output circuit or write video signals to pixels. A display device includes a pixel portion in which a plurality of pixels are provided in a matrix form in accordance with a row direction and a column direction; a signal line driving circuit for inputting to a signal line a video signal for controlling lighting or non-lighting of a pixel; and a scan line driving circuit for selecting a pixel row to which the video signal is to be written. The signal line driving circuit is provided with a shift register and has a means of not transferring a signal in the shift register when a video signal written in the pixel row selected by the scan line driving circuit is identical with a video signal to be written in a pixel in one row after the selected row.
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