Method for manufacturing touch substrate, touch substrate, substrate and touch device

By using a splicing exposure process to form a metal stacked electrode layer in the manufacturing of large-size touch panels, the problems of low efficiency and high cost in the existing splicing exposure process are solved. This achieves effective connection and signal transmission of the electrode layers, improving production efficiency and reducing costs.

CN115280268BActive Publication Date: 2026-02-27BOE TECHNOLOGY GROUP CO LTD +1
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Patent Information

Application Number
CN202080003640.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-12-25
Publication Date
2026-02-27
Estimated Expiration
2041-04-22

AI Technical Summary

Technical Problem

Existing technologies for manufacturing large-size touch panels suffer from high costs and low efficiency in splicing exposure processes, especially when forming the electrode layer of a large-size touch substrate, where it is difficult to effectively connect the metal mesh pattern.

Method used

The first and second electrode layers are formed using a splicing exposure process. Metal strips and metal grid patterns are formed in the edge region, and the effective connection between the electrode layers is achieved by using metal stacking. Multiple exposures are used and the position of the mask is adjusted to ensure effective overlap and connection of the grid patterns.

Benefits of technology

This improves the manufacturing efficiency and cost-effectiveness of large-size touch panels, ensures effective connection of electrode layers and transmission of electrical signals, and reduces production costs.

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Abstract

A manufacturing method of a touch substrate, a touch substrate and a touch device. The method comprises: forming a first electrode layer by a splicing exposure process (S102), the first electrode layer comprising metal strips located at edge regions of the first electrode layer and a first metal mesh pattern connecting the metal strips; forming a second electrode layer on one side of the first electrode layer by a splicing exposure process (S105), the second electrode layer comprising metal strips located at edge regions of the second electrode layer and a second metal mesh pattern connecting the metal strips, the second metal mesh pattern being insulated from the first metal mesh pattern, the metal strips of the first electrode layer being in direct contact with the metal strips of the second electrode layer to form a metal stack; and forming a wire electrically connecting one of the first metal mesh pattern of the first electrode layer and the second metal mesh pattern of the second electrode layer using the metal stack (S106).
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Citation Information

Patent Citations

  • Touch substrate manufacturing method, touch substrate and display device

    CN108321088A

  • Touch panel, touch device and manufacturing method of touch panel

    CN108415621A