Display panel and touch display device

Abstract

The embodiment of the invention discloses a display panel and a touch display device. The display panel includes a pressure sensor, and the pressure sensor includes a first resistor, a second resistor, a third resistor, a fourth resistor, a first type of connecting block and a second type of connecting block; the first resistor, the second resistor, the third resistor and the material of the fourth resistance is a semiconductor material; the material of the first type of connection block and the second type of connection block is a metal material; the display panel also includes a first direction and a second direction crossing the first direction; the first resistance and the second direction Each of the three resistances includes at least two sub-resistances; the sub-resistances constituting the same resistance are connected end-to-end through the second type of connection block; the shape of each sub-resistance, the second resistance and the fourth resistance is a bar shape, and each sub-resistance is along the first direction Extending, the second resistor and the fourth resistor extend along the second direction. The pressure sensing performance of the display panel can be improved by using the display panel provided by the embodiment of the present invention.

Description

Technical field [0001] The embodiments of the present invention relate to touch pressure detection technology, and more particularly to a display panel and a touch display device. Background technique [0002] Currently, display panels integrated with touch electrodes are widely used in electronic devices such as mobile phones, tablet computers, and information query machines in public halls. In this way, the user can operate the electronic device only by touching the mark on the electronic device with a finger, which eliminates the user's dependence on other input devices (such as a keyboard and a mouse), and makes human-computer interaction easier. [0003] In order to better meet the needs of users, a pressure sensor for detecting the touch pressure when the user touches the display panel is usually provided in the display panel to enrich the application range of the touch technology. However, in the existing display panel, even if the touch position (ie, the pressing position)...

AI Technical Summary

Problems solved by technology

However, in the existing display panel, even if the touch position (that is, the pressing position) is very close to the pressure sensor, the pressure detection signal output by the pressure sensor is still very small after pressing.

If the pressure detection signal output by the pressure sensor is too small, it will be submerged by the noise signal, so that the touch pressure value cannot be obtained based on the pressure detection signal, and the pressure detection performance of the display panel is poor.

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