Array substrate, display panel and display device

Abstract

The present invention discloses an array substrate, a display panel and a display device. The array substrate includes a display region and a frame region surrounding the display area; the frame region is provided with a plurality of electric bridge type pressure sensing units and a plurality of first heat conducting sheets; each electric bridge type pressure sensing unit includes an electric bridge electrode, a first power source line electrically connected with the power supply end of the electric bridge electrode, and a detection line electrically connected with the detection end of the electric bridge electrode; each of the plurality of first heat conducting sheets is opposite to one electric bridge electrode, and the vertical projection of the first heat conducting sheet on the corresponding electric bridge electrode covers the corresponding electric bridge electrode. One heat conducting sheet is set to be opposite to a region where one corresponding electric bridge electrode is located, and the vertical projection of the first heat conducting sheet on the corresponding electric bridge electrode covers the corresponding electric bridge electrode, the heat of the first heat conducting sheet is distributed uniformly due to the heat conduction performance of the first heat conducting sheet, so that the temperature of the region where the corresponding electric bridge electrode is located is distributed uniformly, and thus, influence on the output voltage of the electric bridge electrode caused by non-uniform temperature can be decreased, and the accuracy of the pressure detection of the display device can be ensured.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to an array substrate, a display panel and a display device. Background technique [0002] With the continuous development of display technology, the application of display panels is becoming more and more extensive, and the requirements of users for the functions and appearance of display panels are also becoming more and more diverse. In order to meet this demand of users, a flexible display panel has emerged as the times require. The flexible display panel has the characteristic of being deformable and bendable. Based on this characteristic, researchers try to integrate a pressure-sensing function in the flexible display panel. [0003] In the prior art, the way of integrating the pressure sensing function in the flexible display panel is usually: setting one or more electric circuits connected by four resistors in the form of a Wheatstone bridge on the array su...

AI Technical Summary

Problems solved by technology

[0004] Due to the method of integrating the pressure sensing function in the flexible display panel, the resistance values ​​of the bridge electrodes are also quite sensitive to temperature, so the temperature change caused by the large amount of heat generated by the display panel during operation, if the The temperature of the regions corresponding to the four resistances of the bridge electrodes is not uniform, which will cause the output voltage of the bridge electrodes to be inaccurate, resulting in errors in pressure detection

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