Touch substrate and display device

Abstract

The invention provides a touch substrate and a display device, belongs to the technical field of display, and solves the problem that the display is nonuniform as through holes are not uniformly distributed in the existing touch substrate. The touch substrate at least comprises a base, an insulation layer, a common electrode layer, a common electrode signal wire and a drive electrode signal wire; the insulation layer and the common electrode layer are arranged on the base; the common electrode signal wire and the drive electrode signal wire are arranged on the same layer; the common electrode layer comprises drive electrodes and common electrodes which are arranged in a crossed and insulative way and a common electrode connecting bar which is used for connecting all common electrodes; each drive electrode comprises a plurality of drive sub-electrodes which are mutually insulated; the common electrode connecting bar is connected with the common electrode signal wire by a plurality of first through holes which penetrate through the insulation layer; the drive sub-electrodes are connected with the drive electrode signal wire by a plurality of second through holes which penetrate through the first insulation layer; semi-holes which do not completely penetrate through the insulation layer are formed in the positions, corresponding to the common electrodes and / or the drive sub-electrodes, of the insulation layer.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a touch substrate and a display device. Background technique [0002] There are many sensing methods of touch screens, such as optical, microwave, resistive, capacitive and so on. Among them, capacitive sensing is the most widely used. Capacitive sensing includes self-capacitance sensing and mutual capacitance sensing. Compared with self-capacitance sensing, mutual capacitance sensing has the advantages of strong anti-interference ability, high sensitivity, multi-touch and recognition capabilities, so mutual capacitance sensing has become the current Mainstream touch screen sensing method. [0003] At present, there are generally two types of mutual capacitance sensing touch screens: in-cell (In Cell) touch screens and non-embedded touch screens. Embedded touch screen means that the sensing electrodes and driving electrodes of the touch screen are arranged inside ...

AI Technical Summary

Problems solved by technology

[0005] The inventors have found that there are at least the following problems in the prior art: In order to avoid the time delay problem, a plurality of via holes are formed in the common electrode connection bar 100 or the insulating layer corresponding to the common electrode connection bar 100 and the common electrode 300 for common The electrode 300 is connected to the common electrode signal line 1, and the purpose of forming a plurality of via holes is to reduce the resistance of the common electrode, and each driving sub-electrode 200 only connects with the driving sub-electrode 200 through a second via hole 201 in the corresponding insulating layer. The electrode signal line 2 is connected, so for the entire touch substrate, the distribution of the via holes is very uneven, which leads to inconsistent reflective properties of the metal lines of the common electrode signal line 1 and the driving electrode signal line 2, and at the same time under the influence of the electric field Make the display of the screen uneven

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