Structure of touch panel and manufacturing method thereof

Abstract

The invention discloses a touch panel, which comprises a transparent substrate and a sensing structure, wherein the transparent substrate is provided with an upper surface and an edge; the edge is positioned on one side of the upper surface; the sensing structure is arranged on the upper surface of the flexible transparent substrate, and comprises a first sensing string, second sensing mats, a terminal circuit, transparent insulating protection layers and second bridging lines, wherein the first sensing string is provided with first sensing mats and bridging lines; the first sensing string is arranged on the upper surface; the first sensing mats are arranged in an array form; the first bridging lines are electrically connected with the first sensing mats in a first direction; the second sensing mats are arranged on the upper surface in an array form and are interlaced with the first sensing mats; the terminal circuit is arranged on the edge; the transparent insulating protection layers are formed on the first sensing string, the second sensing mats, the terminal circuit and the exposed transparent substrate and are provided with connection windows; the connection windows are used for exposing a part of each second sensing mat respectively; the second bridging lines are arranged on the insulating protection layer and are electrically connected with the second sensing mats which are adjacent to the second bridging lines in a second direction through the connection windows to form a second sensing string; and the terminal circuit is connected with the first and second sensing strings respectively.

Description

technical field [0001] The present invention is a touch panel structure and its manufacturing method, which is used to improve the complex stacking structure of the traditional capacitive touch panel, and can improve the process yield of the capacitive touch panel, and reduce the manufacturing of the projected capacitive touch panel program and reduce fitting steps. Background technique [0002] At present, capacitive touch panels have been widely used in various electronic products. In use, you only need to lightly press the touch panel with your fingers to read or input information. It can replace the buttons and keyboards on traditional electronic devices, bringing human beings Come and live conveniently. However, capacitive touch technology can be divided into two types at present, one is surface capacitive touch technology (Surface Capacitive), and the other is projected capacitive touch technology (Projected Capacitive). [0003] Capacitive touch technology detects c...

AI Technical Summary

Problems solved by technology

When the peripheral circuit 280 becomes thinner and the line width is lower than 50 microns, the tolerance of the glass shape will make it difficult to align the transparent conductive electrode 202 with the peripheral circuit 280, resulting in low yield

[0007] Since the lamination process still requires manual alignment and lamination, multiple alignment and lamination procedures often result in low process yield due to environmental foreign matter entering the stack or human factors, which will cause extreme stability in the process. big impact

As the peripheral lines of the touch panel move toward a narrow side-width process, the line width of the peripheral lines is reduced to less than 50 microns, which will greatly test the stability of the traditional multiple manual alignment and bonding process.

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