A kind of touch sensor and its manufacturing method, touch display panel

Abstract

Examples of the present invention provide a touch sensor, including: base, the base includes a relative first and second surface, and there are multiple grooves on the first surface of the base.Crossing each other forms grid; grooves include cross -area formed by multiple grooves and extended areas outside the intersection area. The vertical distance from the bottom of the groove to the vertical distance from the cross area to the second surface is greater than the groove.The vertical distance at the bottom of the extension area to the second surface; the bottom of the groove does not exceed the first surface; the touch electrode is filled in the groove.The invention of the touch electrode can achieve better control, reduce the difficulty of making the touch electrode, enhance the stability of the touch electrode process, and make the touch electrode evenly spread in the groove, which greatly reduces the touch of the touch.The possibility of the electrode is broken, thereby improving the touch reliability of the touch electrode.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a touch sensor, a manufacturing method thereof, and a touch display panel. Background technique [0002] At present, in order to realize the touch function of the flexible display panel using organic light-emitting diodes, it is usually necessary to attach a layer of touch module on the basis of the display panel, so that the flexible display panel cannot be thinned. In order to realize the thinning and lightening of the touch-sensitive flexible display panel, the traditional module bonding technology is replaced by the integration technology. The current integration technology mainly includes the following two types: [0003] One is to integrate the touch electrodes into the protective film, polarizer or glass cover. Although this method reduces the thickness of flexible display products to a certain extent, it requires more production of the protective film, polarize...

AI Technical Summary

Problems solved by technology

[0003] One is to integrate the touch electrodes into the protective film, polarizer or glass cover. Although this method reduces the thickness of flexible display products to a certain extent, it requires more production of the protective film, polarizer and glass cover. high

[0004] The second is to integrate the touch electrodes on the surface of the thin film encapsulation layer. The touch electrodes need to undergo photolithography and wet etching processes, but the yellow light effect of the photolithography process will damage the light-emitting layer of the organic light-emitting display panel. The acidic or alkaline chemical solution in the process is easy to damage the film layers in the thin film encapsulation layer

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