Touch panel, touch display device, touch pressure detection method

Abstract

The embodiment of the invention discloses a touch panel. The touch panel includes: a substrate, the substrate includes a plurality of touch areas; at least one pressure sensor group formed on the substrate, the pressure sensor group includes a first-type pressure sensor and a second-type pressure sensor, the first-type pressure sensor The pressure sensor of the second type is located on the first side of the substrate, the pressure sensor of the second type is located on the second side of the substrate opposite to the first side, and the pressure sensor of the first type and the pressure sensor of the second type forming the same pressure sensor group are symmetrical about the center line of the touch panel; Each touch area corresponds to at least one pressure sensor group; the processor is electrically connected to the touch position detection device and the pressure sensor group, and is used to control the touch position detection device to detect the current touch position, and determine the touch area, and according to The touch pressure value is calculated from the pressure detection signals of the pressure sensor group corresponding to the touch area. The pressure sensing performance of the touch panel can be improved by using the touch panel provided by the embodiment of the present invention.

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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