Touch screen and manufacturing method thereof, display substrate and touch display device

Abstract

The present invention provides a touch screen and its manufacturing method, a display substrate and a touch display device. The touch screen includes: a substrate substrate including a touch area and a peripheral area located on the periphery of the touch area; a black matrix arranged in the peripheral area; At least one metal grid layer, partly arranged in the touch area, partly arranged in the peripheral area, each layer of metal grid layer includes a plurality of electrodes, and the metal grid lines between adjacent electrodes on the same layer Disconnection: the electrostatic lead-out line, used for grounding, is arranged in the peripheral area, and extends through at least one disconnected cutout of the metal grid line, and is set on the same layer as the metal grid layer and insulated. In the present invention, by arranging static electricity lead-out lines at the disconnected cuts of the metal grid lines in the peripheral area, the electrostatic charge at the disconnected cuts of the metal grid lines can be exported in time to enhance the anti-ESD performance of the touch screen.

Description

technical field [0001] The present invention relates to the field of touch technology, in particular to a touch screen and a manufacturing method thereof, a display substrate and a touch display device. Background technique [0002] At present, in the touch screen market, metal grid integrated capacitive touch screen (OGM) products have many excellent performances such as fast signal transmission speed, high sensitivity, and good linearity, and have been widely promoted and gradually accepted and recognized by customers. [0003] OGM products include a metal grid layer for forming touch electrodes. In order to form multiple touch electrodes, the metal grid layer on the same layer needs to be disconnected at certain positions, and the metal grid lines at the cutouts need to be disconnected. The tip is easy to accumulate electrostatic charge, resulting in Electro-Static discharge (ESD), and electrostatic discharge is prone to electrostatic breakdown, resulting in poor appearan...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a touch screen and its manufacturing method, a display substrate and a touch display device, so as to solve the problem that ESD is prone to occur at the cutout of the metal grid line of the touch screen, resulting in poor appearance and poor function

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