DISPLAY DEVICE WITH TOUCH SENSOR, POTENTIAL CONTROL METHOD, AND PROGRAM
First Claim
1. A display device with a touch sensor, comprising:
- a plurality of display pixel electrodes;
a common electrode configured to be provided opposed to the display pixel electrodes;
a display function layer configured to have an image display function;
a display control circuit configured to apply a display voltage between the display pixel electrodes and the common electrode based on an image signal and carry out image display control so that the display function of the display function layer be exerted; and
a touch detection electrode configured to be provided opposed to the common electrode and form capacitance between the touch detection electrode and the common electrode, whereina display drive voltage applied to the common electrode by the display control circuit is utilized as a touch sensor drive signal, andpotential of a gate of a thin-film transistor circuit connected to the display pixel electrode is set to a floating state during application of the touch sensor drive signal.
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Accused Products
Abstract
Disclosed herein is a display device with a touch sensor, including: a plurality of display pixel electrodes; a common electrode configured to be provided opposed to the display pixel electrodes; a display function layer configured to have an image display function; a display control circuit configured to apply a display voltage between the display pixel electrodes and the common electrode based on an image signal and carry out image display control so that the display function of the display function layer be exerted; and a touch detection electrode configured to be provided opposed to the common electrode and form capacitance between the touch detection electrode and the common electrode.
43 Citations
5 Claims
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1. A display device with a touch sensor, comprising:
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a plurality of display pixel electrodes; a common electrode configured to be provided opposed to the display pixel electrodes; a display function layer configured to have an image display function; a display control circuit configured to apply a display voltage between the display pixel electrodes and the common electrode based on an image signal and carry out image display control so that the display function of the display function layer be exerted; and a touch detection electrode configured to be provided opposed to the common electrode and form capacitance between the touch detection electrode and the common electrode, wherein a display drive voltage applied to the common electrode by the display control circuit is utilized as a touch sensor drive signal, and potential of a gate of a thin-film transistor circuit connected to the display pixel electrode is set to a floating state during application of the touch sensor drive signal. - View Dependent Claims (2, 3)
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4. A potential control method of a display device with a touch sensor, the display device including
a plurality of display pixel electrodes, a common electrode provided opposed to the display pixel electrodes, a display function layer having an image display function, a display control circuit that applies a display voltage between the display pixel electrodes and the common electrode based on an image signal and carries out image display control so that the display function of the display function layer be exerted, and a touch detection electrode that is provided opposed to or in juxtaposition with the common electrode and forms capacitance between the touch detection electrode and the common electrode, the potential control method comprising: -
utilizing a display drive voltage applied to the common electrode by the display control circuit as a touch sensor drive signal; and setting potential of a gate of a thin-film transistor circuit connected to the display pixel electrode to a floating state during application of the touch sensor drive signal.
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5. A program for causing a computer that controls a display device with a touch sensor to execute processing, the display device including
a plurality of display pixel electrodes, a common electrode provided opposed to the display pixel electrodes, a display function layer having an image display function, a display control circuit that applies a display voltage between the display pixel electrodes and the common electrode based on an image signal and carries out image display control so that the display function of the display function layer be exerted, and a touch detection electrode that is provided opposed to the common electrode and forms capacitance between the touch detection electrode and the common electrode, the processing being executed for carrying out a process comprising: -
utilizing a display drive voltage applied to the common electrode by the display control circuit as a touch sensor drive signal; and setting potential of a gate of a thin-film transistor circuit connected to the display pixel electrode to a floating state during application of the touch sensor drive signal.
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Specification