Touch detectable display device and driving method thereof
First Claim
1. A display device comprising:
- a display panel;
a lighting unit adapted to illuminate the display panel in response to receipt of a lighting control signal;
a pressure sensing unit adapted to generate a first sensor output signal in response to a touch on the display panel;
a light sensing unit positioned to receive light from the lighting unit and ambient light and in response thereto to generate a second sensor output signal in response to a touch on the display panel;
a sensor scanning driver adapted to generate and supply sensor scanning signals to the pressure sensing unit and to the light sensing unit in response to receipt of a sensor scanning control signal; and
a signal controller being operable to generate the lighting control signal and the sensor scanning control signal in response to receipt of the first and the second sensor output signals, the signal controller being further operable to generate the lighting control signal, the sensor scanning control signal.
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Accused Products
Abstract
A display device is disclosed which includes: a display panel; a lighting unit to illuminate the display panel and having a state in response to a lighting control signal; a pressure sensing unit generating a first sensor output signal according to a touch on the display panel; a light sensing unit receiving light from the lighting unit and ambient light and generating a second sensor output signal according to the touch on the display panel; a sensor scanning driver outputting sensor scanning signals to the pressure sensing unit and the light sensing unit in response to a sensor scanning control signal; and a sensing controller generating the lighting control signal and the sensor scanning control signal based on the first and the second sensor output signals and outputting the lighting control signal to the lighting unit and the sensor scanning control signal and the sensor scanning driver.
164 Citations
19 Claims
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1. A display device comprising:
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a display panel;
a lighting unit adapted to illuminate the display panel in response to receipt of a lighting control signal;
a pressure sensing unit adapted to generate a first sensor output signal in response to a touch on the display panel;
a light sensing unit positioned to receive light from the lighting unit and ambient light and in response thereto to generate a second sensor output signal in response to a touch on the display panel;
a sensor scanning driver adapted to generate and supply sensor scanning signals to the pressure sensing unit and to the light sensing unit in response to receipt of a sensor scanning control signal; and
a signal controller being operable to generate the lighting control signal and the sensor scanning control signal in response to receipt of the first and the second sensor output signals, the signal controller being further operable to generate the lighting control signal, the sensor scanning control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of driving a display device including a display panel and a lighting unit, the method comprising:
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generating a first sensing signal based on a pressure exerted on a display panel;
generating a pressure information signal as a function of the first sensing signal;
generating a second sensing signal responsive to receipt of light from the lighting unit and ambient light;
generating a position information signal as a function of the second sensing signal;
determining whether the display device is in a dead zone based on the pressure information signal and the position information signal; and
performing a control operation by controlling the lighting unit or by controlling a timing for generating the second sensing signal when the display device is in the dead zone. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification