Display device
First Claim
1. A display device comprising:
- a display panel;
a plurality of counter electrodes on the display panel;
a display signal supply unit for supplying a display voltage to the plurality of counter electrodes; and
a touch panel control unit for supplying pulse signals to the plurality of counter electrodes and including a plurality of connecting units,wherein each of the plurality of connecting units is provided for each of the plurality of counter electrodes respectively, andwherein the plurality of connecting units are configured to supply the pulse signals sequentially to the respective plurality of counter electrodes for detecting a touch position, and supply the pulse signals simultaneously to all of the plurality of counter electrodes for detecting an approach of a detection object.
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Abstract
A display device includes a display panel, a touch panel control unit, a plurality of scanning electrodes formed on the display panel, a plurality of detection electrodes formed on the display panel so as to intersect with the plurality of scanning electrodes, a drive signal supply unit for inputting a drive signal to each of the scanning electrodes, and a detection unit for detecting a detection signal from each of the detection electrodes. The touch panel control unit supplies the driving signal to each of the scanning electrodes from the drive signal supply unit to enable detection of a touch position of a detection object based on the detection signal detected, and supplies the driving signal to all of the scanning electrodes collectively from the drive signal supply unit to enable detection of approach of the detection object to the touch panel based on the detection signal detected.
12 Citations
6 Claims
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1. A display device comprising:
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a display panel; a plurality of counter electrodes on the display panel; a display signal supply unit for supplying a display voltage to the plurality of counter electrodes; and a touch panel control unit for supplying pulse signals to the plurality of counter electrodes and including a plurality of connecting units, wherein each of the plurality of connecting units is provided for each of the plurality of counter electrodes respectively, and wherein the plurality of connecting units are configured to supply the pulse signals sequentially to the respective plurality of counter electrodes for detecting a touch position, and supply the pulse signals simultaneously to all of the plurality of counter electrodes for detecting an approach of a detection object. - View Dependent Claims (2, 3)
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4. A display device comprising:
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a display panel; a plurality of common electrodes on the display panel; a display signal supply unit for supplying a display signal to the plurality of common electrodes; and a touch panel control unit for supplying pulses to the plurality of common electrodes and including a plurality of connecting units, wherein each of the plurality of connecting units is provided for each of the plurality of common electrodes respectively, and wherein the plurality of connecting units are configured to supply the pulses sequentially to the plurality of common electrodes for detecting a touch position, and supply the pulses simultaneously to all of the plurality of common electrodes for detecting an approach of a detection object. - View Dependent Claims (5, 6)
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Specification