A kind of touch panel and touch display device

Abstract

The embodiment of the invention discloses a touch panel and a touch display device. The touch panel includes: a touch area and a non-touch area, and the touch area includes a plurality of touch units arranged in an array; the touch unit includes: first electrodes arranged along a first direction and second electrodes arranged along a second direction Electrode; the first electrode includes a first sub-electrode, a second sub-electrode, and a connection area connecting the first sub-electrode and the second sub-electrode, and the second electrode includes a third sub-electrode and a fourth sub-electrode arranged on both sides of the first electrode The sub-electrodes, the third sub-electrode and the fourth sub-electrode are connected through a bridge structure erected above the connection area; each of the above-mentioned sub-electrodes includes a plurality of openings arranged at intervals. The implementation of the present invention can achieve the effect of reducing the stress of the electrodes, thereby improving the bending resistance of the electrodes and preventing the breakage of the touch panel when it is bent.

Description

technical field [0001] The present application relates to but not limited to the field of touch technology, especially a touch panel and a touch display device. Background technique [0002] With the development of display technology, touch technology has been widely used in various display devices, such as smart phones and tablet computers with touch function, among which, the quality of touch electrodes determines the performance of touch panels. Key factor. [0003] Existing flexible touch screens include double-layer sensing films and single-layer sensing films. For example, the structure of double-layer sensing films is: glass+film+film (Glass+film+film, referred to as: GFF), single-layer The structure of the sensing film includes, for example: glass+film (Glass+film, referred to as: G1F) (electrodes are located on one side of the film and the electrodes are in different layers), glass+film (GF2 (Glass+2film) (electrodes are located on both sides of the film and the el...

AI Technical Summary

Problems solved by technology

At present, there are many problems that need to be solved in the manufacturing process of GF, mainly including the following two points: first, the electrode pattern (pattern) of the touch unit in GF is a whole electrode, and the wide electrode makes the electrode itself have a large internal stress , it is easy to break when bending; second, the material selection of the bridge point, although the ductility of the metal (Metal) bridge is good, but the disappearing effect is poor, and the adhesion of the metal is poor, the use of indium tin oxide (Indium Tin Oxide) TinOxide, abbreviated as: ITO) bridge has a better disappearing effect, but the brittleness of ITO is high, and it is prone to breakage when bent.

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