Display device and driving method thereof
First Claim
1. A display device comprising:
- a panel assembly;
a backlight unit supplying light to the panel assembly;
a first photosensor supplied with ambient light and light from the backlight unit to generate a first sensing signal;
a second photosensor blocked from the ambient light and receiving the light from the backlight unit to generate a second sensing signal;
a sensing signal processor receiving the first and second sensing signals from the first and second photosensors for processing; and
a signal controller determining a sensing state in response to an intensity of the ambient light determined responsive to processed first sensing signals and processed second sensing signals from the sensing signal processor and performing a predetermined control operation responsive to the sensing state,wherein the signal controller controls a gain of the sensing signal processer to regulate a magnitude of the first sensing signal.
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Accused Products
Abstract
A display device includes a panel assembly, a backlight unit supplying light to the panel assembly, a first photosensor, a second photosensor, a sensing signal processor and a signal controller. The first photosensor is supplied with ambient light and light from the backlight unit to generate a first sensing signal. The second photosensor is blocked from the ambient light and receives the light from the backlight unit to generate a second sensing signal. The sensing signal processor receives the first and the second sensing signals from the first and the second photosensors for processing. The signal controller determines a sensing state responsive to processed first and second sensing signals from the sensing signal processor and performing a predetermined control operation responsive to the sensing state.
45 Citations
32 Claims
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1. A display device comprising:
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a panel assembly; a backlight unit supplying light to the panel assembly; a first photosensor supplied with ambient light and light from the backlight unit to generate a first sensing signal; a second photosensor blocked from the ambient light and receiving the light from the backlight unit to generate a second sensing signal; a sensing signal processor receiving the first and second sensing signals from the first and second photosensors for processing; and a signal controller determining a sensing state in response to an intensity of the ambient light determined responsive to processed first sensing signals and processed second sensing signals from the sensing signal processor and performing a predetermined control operation responsive to the sensing state, wherein the signal controller controls a gain of the sensing signal processer to regulate a magnitude of the first sensing signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A driving method of a display device provided with a backlight unit supplying light comprising:
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receiving ambient light and the light from the backlight unit at a first photosensor to generate a first sensing signal; blocking the ambient light and receiving the light from the backlight unit at a second photosensor to generate a second sensing signal; generating a state judgment signal in response to the first and the second sensing signals; and determining a sensing state in response to an intensity of the ambient light as indicated by the state judgment signal, wherein the state judgment signal represents a difference between the first and second sensing signals, and a gain of the first sensing is controlled regulating a magnitude of the first sensing signal. - View Dependent Claims (13, 14)
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15. A display device comprising:
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a panel assembly; a backlight unit supplying light to the panel assembly; a first photosensor receiving ambient light and light from the backlight unit to generate a first sensing signal; a second photosensor blocked from the ambient light and receiving the light from the backlight unit to generate a second sensing signal; a third photosensor receiving the ambient light and the light from the backlight unit to generate a third sensing signal responsive to touch; a sensing signal processor processing the first to third sensing signals from the first to third photosensors; and a signal controller regulating the third sensing signal responsive to processed first and second sensing signals, wherein the signal controller controls a gain of the sensing signal processor to regulate a magnitude of the first sensing signal. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A driving method of a display device provided with a backlight unit supplying light comprising:
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receiving ambient light and light from the backlight unit at a first photosensor to generate a first sensing signal; blocking the ambient light and receiving the light from the backlight unit at a second photosensor to generate a second sensing signal; receiving the ambient light and the light from the backlight unit at a third photosensor to generate a third sensing signal responsive to touch; and regulating the third sensing signal in response to the first and the second sensing signals, wherein a gain of the first sensing signal is controlled regulating a magnitude of the first sensing signal. - View Dependent Claims (32)
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Specification