Touch substrate, manufacturing method for touch substrate, and touch display panel

Abstract

The invention discloses a touch substrate, a manufacturing method for the touch substrate, and a touch display panel. The touch substrate comprises a substrate and a touch electrode layer located above the substrate, wherein the touch electrode layer comprises first touch electrodes and second touch electrodes; a first insulation layer is arranged above the touch electrode layer; first via holes are formed in the first insulation layer; signal wires are arranged above the first insulation layer; and the signal wires are connected with the corresponding first or second touch electrodes through the first via holes. According to the technical scheme, the signal wires are arranged above the touch electrode layer, namely, wiring does not need to be performed in a peripheral region of the touch substrate, so that the finally formed touch display panel can be bezel-free; and meanwhile, the touch electrode layer can cover the whole substrate, so that no touch blind points exist on the touch substrate.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a touch substrate, a preparation method thereof, and a touch display panel. Background technique [0002] With the improvement of user experience requirements for touch display devices, no blind spot and frameless design of touch display panels has become a current hot research topic in the field of touch display. [0003] figure 1 It is a schematic structural diagram of a single-layer multi-point external embedded touch display panel in the prior art, such as figure 1 As shown, the single layer multi-point embedded (Single Layer On-Cell, referred to as SLOC) touch display panel includes: alternately arranged touch area 1 and signal wiring area 2, wherein the touch area 1 is set There are several first touch electrodes 3 and several second touch electrodes 4, mutual capacitance is generated between the first touch electrodes 3 and the second touch electrodes 4; A plurality of...

AI Technical Summary

Problems solved by technology

However, in practical applications, it is found that the reduction of the line width of the signal traces will increase its resistance, and the phenomenon of resistance-capacitance delay (RC Delay) is more serious; the reduction of the line spacing of the signal traces 5 will cause The crosstalk is more serious

More importantly, the technical means of reducing the line width and line spacing of the signal traces 5 in the prior art can only reduce the size of the border to a certain extent, and it cannot achieve true borderless

[0007] It can be seen from the above that the touch display panel in the prior art cannot achieve no blind spots and no borders at the same time

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