Display device with a touch screen
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United States of America Patent
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Sep 28, 2010
Grant Date -
Nov 16, 2006
app pub date -
Apr 12, 2006
filing date -
May 12, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A display device with a touch screen having display pixels and optical sensors each arranged in a matrix. In the display device, a backlight controller controls a backlight unit to be turned ON in a data display duration and controls the backlight unit to be turned OFF in a sensor detection duration other than the data display duration. Consequently, the influence of backlight on a touch part when the shade of the touch part is to be detected, can be reduced and an accuracy in the detection of an optical sensor can be increased.
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