Touch sensor, flexible touch display panel and electronic equipment

Abstract

The invention discloses a touch sensor, a flexible touch display panel and electronic equipment. The touch sensor comprises a first touch electrode layer, a substrate and a first thermal expansion and retraction buffering layer, wherein a thermal expansion coefficient of the first touch electrode layer is smaller than that of the substrate; the thermal expansion coefficient of the first thermal expansion and retraction buffering layer is smaller than or equal to that of the substrate; the thermal expansion coefficient of the first thermal expansion and retraction buffering layer is greater than or equal to that of the first touch electrode layer. The touch sensor is provided with the first thermal expansion and retraction buffering layer and the first thermal expansion and retraction buffering layer with a pre-set thermal expansion coefficient range is selected, so that the crimping and deformation problems caused by a high temperature in a film forming process of the touch sensor, the flexible touch display panel of the touch sensor and the electronic equipment can be effectively avoided.

Description

technical field [0001] The present invention relates to the technical field of touch devices, and more specifically, to a touch sensor, a flexible touch display panel and electronic equipment. Background technique [0002] With the continuous development of science and technology, more and more electronic devices with touch function are widely used in people's daily life and work, which brings great convenience to people's daily life and work, and has become the Indispensable and important tool. The touch panel is the main component of the electronic device to realize the touch function, and the flexible touch panel has become a more commonly used touch panel at the present stage due to its good flexibility. [0003] refer to figure 1 , figure 1 It is a schematic structural diagram of a flexible touch display panel commonly used in the prior art. The flexible touch display panel includes: a flexible substrate 11; a first touch electrode 12 arranged on one side surface of ...

AI Technical Summary

Problems solved by technology

[0004] In general, the flexible substrate 11 is generally made of flexible plastic material, which has a large coefficient of thermal expansion and is easily deformed by heat.

The first touch electrodes 12 and the second touch electrodes 14 are usually made of metal or metal oxide materials, and their thermal expansion coefficients are small, and the first touch electrodes 12 and the second touch electrodes 14 require relatively high The temperature has a process of heating and cooling, and in the process of heating and cooling, it is easy to cause curling and deformation of the flexible substrate 11, which in turn leads to curling and deformation of the flexible touch display panel.

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