Touch panel, touch display device and touch pressure detection method

Abstract

The embodiment of the invention discloses a touch panel. The touch panel comprises a substrate, at least one pressure sensor group and a processor, wherein the substrate comprises a plurality of touch areas; the at least one pressure sensor group is formed on the substrate, the pressure sensor group comprises a first type of pressure sensors and a second type of pressure sensors, the first type of pressure sensors are positioned on the first side of the substrate, the second type of pressure sensors are positioned on the second side corresponding to the first side of the substrate, and the first type of pressure sensor groups and the second type of pressure sensors forming the same pressure sensor group are symmetrical with respect to the central line of the touch panel; each touch area is corresponding to at least one pressure sensor group; the processor is electrically connected with a touch position detection device and the pressure sensor group, for controlling the touch position detection device to detect a current touch position, determining a touch area, and computing a touch pressure value according to a pressure sensing detection signal of the pressure sensor group corresponding to the touch area. According to the touch panel provided by the embodiment of the invention, pressure sensing detection performance of the touch panel can be improved.

Description

technical field [0001] The embodiments of the present invention relate to a touch pressure detection technology, in particular to a touch panel, a touch display device, and a touch pressure detection method. Background technique [0002] At present, touch panels 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 touch panel is usually provided in the touch panel, so as to enrich the application range of the touch technology. However, studies have shown that for existing touch panels, when pressed continuo...

AI Technical Summary

Problems solved by technology

However, studies have shown that for existing touch panels, when pressed continuously, the baseline of the pressure sensor will drift, so that when the same position of the same touch panel is pressed with the same amount of force, the pressure sensitivity output by the same pressure sensor detection signal is different

Undoubtedly, this will affect the pressure sensing performance of the touch panel

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