Touch panel and display apparatus

Abstract

The invention provides a touch panel and a display apparatus. The touch panel is provided with a pressure sensor and a detection unit; and the pressure sensor comprises a plurality of first electrodes parallel to one another, a plurality of second electrodes parallel to one another, and piezoelectric layers located between the first electrodes and the second electrodes. When external force acts on the surface of the touch panel, the piezoelectric layers convert a pressure signal on the touch panel into a voltage signal and send the voltage signal to the first electrodes and the second electrodes; and the detection unit determines a touch position according to the voltage signal on the first electrode and the second electrode. The touch position is determined through the pressure acting on the pressure sensor, and a touch medium is not limited, so that the application range is relatively wide; moreover, the first electrodes and the second electrodes are strip-shaped electrodes arranged in a crossover manner, and light transmissivity is relatively high, so that the brightness of the touch panel can be improved; and in addition, the crossover areas between the first electrodes and the second electrodes are relatively small and difficultly disturbed by external signals, so that the accuracy of touch position judgment can be improved.

Description

technical field [0001] The present invention relates to the technical field of touch display, in particular to a touch panel and a display device. Background technique [0002] Due to the advantages of better convenient operation, better user experience and larger screen size, the touch panel is widely used. Existing mainstream touch panels usually use resistive touch sensors or capacitive touch sensors. The resistive touch sensor includes a first electrode layer and a second electrode layer, and the first electrode layer and the second electrode layer are insulated and separated by Evenly spaced transparent grid dividers. When an external force acts on the surface of the touch sensor, the first electrode layer on the upper layer deforms and contacts the second electrode layer, making the first electrode layer and the second electrode layer conductive and generating a potential difference, so that the detection module can The touch position is calculated from the potential...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a touch panel and a display device, which are used to at least partially solve the limitation of the touch medium, the low light transmittance, and the judgment of the touch position of the existing touch panel. The problem of low accuracy

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