DISPLAY DEVICE AND BRIGHTNESS CONTROL METHOD CAPABLE OF REDUCING POWER CONSUMPTION OF DISPLAY DEVICE
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United States of America Patent
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N/A
Issued Date -
Jul 4, 2013
app pub date -
Mar 27, 2012
filing date -
Dec 29, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A display device includes a display panel, a backlight module, a driving circuit and a control unit. The driving circuit is electrically connected to the backlight module and used for providing a driving voltage for the backlight module. The control unit is electrically connected to the display panel and the driving circuit. The control unit controls the driving voltage to vary within a predetermined ratio range periodically so as to make a backlight brightness of the backlight module vary periodically in response to the driving voltage within the predetermined ratio range and controls a display parameter of the display panel to vary periodically according to the backlight brightness of the backlight module so as to compensate the backlight brightness of the backlight module. Accordingly, the invention can reduce power consumption of the backlight module effectively so as to reduce power consumption of the display device.
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