Display device
First Claim
1. A display device comprising:
- 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;
a drive signal supply unit for inputting a driving signal to the plurality of scanning electrodes; and
a detection unit for detecting a detection signal from each of the plurality of detection electrodes,wherein the touch panel control unit supplies the driving signal to each of the plurality of scanning electrodes from the drive signal supply unit for detecting a touch position based on the detection signal which is detected by the detection unit, and supplies the driving signal to the plurality of scanning electrodes collectively from the drive signal supply unit for detecting an approach of a detection object,the touch panel control unit has a first switching element that supplies a drive voltage to each of the plurality of scanning electrodes, and a second switching element that supplies a low voltage to each of the plurality of scanning electrodes, andthe first switching element and the second switching element are provided for each of the plurality of scanning electrodes, andthe driving signal is a pulse signal ranging from the low voltage to the drive voltage.
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Accused Products
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.
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Citations
8 Claims
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1. A display device comprising:
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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; a drive signal supply unit for inputting a driving signal to the plurality of scanning electrodes; and a detection unit for detecting a detection signal from each of the plurality of detection electrodes, wherein the touch panel control unit supplies the driving signal to each of the plurality of scanning electrodes from the drive signal supply unit for detecting a touch position based on the detection signal which is detected by the detection unit, and supplies the driving signal to the plurality of scanning electrodes collectively from the drive signal supply unit for detecting an approach of a detection object, the touch panel control unit has a first switching element that supplies a drive voltage to each of the plurality of scanning electrodes, and a second switching element that supplies a low voltage to each of the plurality of scanning electrodes, and the first switching element and the second switching element are provided for each of the plurality of scanning electrodes, and the driving signal is a pulse signal ranging from the low voltage to the drive voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification