Display panel and touch display device

Abstract

The embodiment of the invention discloses a display panel and a touch display device. The display panel comprises a pressure sensor comprising a first resistor, a second resistor, a third resistor, a fourth resistor, a first type of connection blocks and a second type of connection blocks, wherein the first resistor, the second resistor, the third resistor and the fourth resistor are made from semiconductor material; the first type of connection blocks and the second type of connection blocks are made from metal material; the display panel also comprises a first direction and a second direction intersected with the first direction; the first resistor and the third resistor comprises at least two sub-resistors; the sub-resistors forming the same resistor are connected end to end via the second types of connection blocks; each sub-resistor, the second resistor and the fourth resistor are bar-shaped, each sub-resistor extends along the first direction, and the second resistor and the fourth resistor extend along the second direction. According to the display panel provided by the embodiment of the invention, pressure sensing detection performance of the display panel can be improved.

Description

technical field [0001] Embodiments of the present invention relate to a touch pressure detection technology, in particular to a display panel and a touch display device. Background technique [0002] At present, display panels integrated with touch electrodes are widely used in electronic devices such as mobile phones, tablet computers, and information inquiry machines in halls of public places. 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 keyboard and mouse) and makes human-computer interaction easier. [0003] In order to better meet user needs, a pressure sensor for detecting the amount of touch pressure when the user touches the display panel is usually provided in the display panel, so as to enrich the application range of the touch technology. However, in the existing display panel, even if the touch position (ie, the pres...

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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