DISPLAY PANEL WITH TOUCH DETECTION FUNCTION, DRIVE CIRCUIT, AND ELECTRONIC UNIT
First Claim
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1. A display panel with a touch detection function, the display panel comprising:
- a TFT substrate;
a plurality of common electrodes on the TFT substrate;
an insulating layer on the common electrodes;
a plurality of pixel electrodes on the insulating layer;
a plurality of pixel signal lines each of which is coupled with the pixel electrodes;
a gate driver configured to drive gate electrodes of transistors for selecting the pixel electrodes;
a drive section including a drive electrode driver for a touch detection, a display drive section to supply a pixel signal to the pixel signal lines, and a power control section to control power supply to the drive electrode driver and the display drive section on the TFT substrate; and
a plurality of wires connecting the drive section to the common electrodes on the TFT substrate,whereinthe drive section is configured to apply an AC drive signal for the touch detection to the common electrodes via the wires in a touch detection operation,the gate driver and the drive section are located on the TFT substrate along a periphery of a display area.
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Abstract
There are provided a display panel with a touch detection function, a drive circuit, and an electronic unit, which make it possible to realize many functions related to touch detection. The display panel includes: one or more display elements; one or more drive electrodes extending in one direction; an electrode drive section integrated into a chip, and applying a drive signal to the drive electrodes; and one or more touch detection electrodes extending in a direction intersecting the direction in which the drive electrodes extend.
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14 Claims
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1. A display panel with a touch detection function, the display panel comprising:
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a TFT substrate; a plurality of common electrodes on the TFT substrate; an insulating layer on the common electrodes; a plurality of pixel electrodes on the insulating layer; a plurality of pixel signal lines each of which is coupled with the pixel electrodes; a gate driver configured to drive gate electrodes of transistors for selecting the pixel electrodes; a drive section including a drive electrode driver for a touch detection, a display drive section to supply a pixel signal to the pixel signal lines, and a power control section to control power supply to the drive electrode driver and the display drive section on the TFT substrate; and a plurality of wires connecting the drive section to the common electrodes on the TFT substrate, wherein the drive section is configured to apply an AC drive signal for the touch detection to the common electrodes via the wires in a touch detection operation, the gate driver and the drive section are located on the TFT substrate along a periphery of a display area. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A display panel with a touch detection function, the display panel comprising:
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a TFT substrate; a plurality of common electrodes on the TFT substrate; a plurality of pixel electrodes on the common electrodes with an insulating layer therebetween; a drive section in which a drive electrode driver, a display control section, a power control section, and a display drive section driving the pixel electrodes are integrated into a chip on the TFT substrate; a plurality of pixel signal lines each of which is coupled with the pixel electrodes; a gate driver configured to drive gate electrodes of transistors for selecting the pixel electrodes on the TFT substrate; and a plurality of wires connecting the drive section to the common electrodes on the TFT substrate, wherein the drive electrode driver is configured to apply an AC drive signal for the touch detection to the one or more common electrodes in a touch detection operation, the display drive section is configured to generate a pixel signal based on a control pixel signal and a source drive control signal from the display control section, and to supply the pixel signal to the pixel signal line, the power control section controls power supply to the drive electrode driver and the display drive section, the gate driver and the drive section are located on the TFT substrate along a periphery of a display area, and the wires extend from the drive section in the periphery of the display area to the display area. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification