BACKLIGHT DRIVING CIRCUIT AND METHOD
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United States of America Patent
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Issued Date -
Oct 3, 2013
app pub date -
Oct 23, 2012
filing date -
Mar 29, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A backlight driving circuit includes a scan driver operatively associated with pixel circuits in a matrix formation, and a backlight driver. The scan driver activates the pixel circuits in a row-by-row manner within a frame interval for provision of data voltages to the pixel circuits in each row of the matrix formation, respectively. The backlight driver adjusts a duty cycle of a backlight driving signal for a backlight source such that the backlight source is deactivated when at least one of the pixel circuits is yet to be activated within the frame interval, and adjusts the duty cycle to gradually increase brightness of light output from the backlight source when all of the pixel circuits have been activated within the frame interval.
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