Display apparatus

Abstract

A display apparatus which can reduce a parasitic capacitance during driving of driving electrodes based on a self-capacitance detecting method is provided. The display apparatus includes: a plurality of connection wires which are formed in a peripheral area and are connected to a plurality of corresponding video signal lines; a video signal line selection circuit which is connected with a plurality of connection wires, selects at least one connection wire and supplies a signal to the video signal lines; self-capacitance detection wires which extend in a direction intersecting an extension direction of the connection wires and intersects the connection wires; common wires which electrically connect the self-capacitance detection wires and drive electrodes; and transistors which are provided between the self-capacitance detection wires and the common wires. Further, the self-capacitance detection wires extend between a display area and the video signal line selection circuit in a plan view.

Description

technical field [0001] The present invention relates to a display device, and more particularly, to a display device with a touch detection function capable of detecting approach or contact of an object based on, for example, a change in electrostatic capacitance. Background technique [0002] In recent years, a touch detection device called a so-called touch panel that can detect the approach or contact of an object has attracted attention. The touch panel is mounted on a display device such as a liquid crystal display device or used in an integrated display device with a touch detection function. In this display device with a touch detection function, various button images and the like are displayed on the display device, whereby information can be input on a touch panel instead of normal mechanical buttons. Since a display device with a touch detection function having such a touch panel does not require input devices such as keyboards, mice, and keypads, it tends to be u...

AI Technical Summary

Problems solved by technology

Therefore, the wiring for self-capacitance detection intersects with the connection wiring for supplying signals to the video signal lines, and the parasitic capacitance generated by the intersection becomes a burden on the drive electrodes based on the self-capacitance detection method at the time of driving.

In particular, the burden of parasitic capacitance has a greater impact on detection in the self-capacitance detection method than in the mutual-capacitance detection method

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