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A touch module, its manufacturing method, touch screen and display device

A touch module and touch electrode technology, which is applied in the field of touch screens, display devices, and touch modules, and can solve the problem of increased square resistance of the first terminal, complex manufacturing process of the touch module, and damage to the first terminal and other problems, to achieve the effect of reducing square resistance, eliminating the need for patterning process, and eliminating the need for stripping process

Active Publication Date: 2018-10-30
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The manufacturing process of the above-mentioned touch module is relatively complicated, and a protective layer needs to be provided. Moreover, in the subsequent process of peeling off the protective layer, the first connecting terminal electrically connected to the touch sensing electrode may be damaged, which will cause the first The square resistance of the terminal increases, which affects the yield of the touch screen

Method used

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  • A touch module, its manufacturing method, touch screen and display device
  • A touch module, its manufacturing method, touch screen and display device
  • A touch module, its manufacturing method, touch screen and display device

Examples

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example 1

[0072] Example 1: If Figure 7 The manufacturing method of the shown flexible touch module, such as Figure 10a-Figure 10i shown, including the following steps:

[0073] 1. Apply a transparent PI solution on the substrate 12, and heat-cure the PI solution to form a flexible film 10, such as Figure 10a shown;

[0074] 2, grow graphene film 14 on copper foil 13 by CVD method, as Figure 10b shown;

[0075] 3. The graphene film 14 grown on the copper foil 13 is transferred to the surface of the flexible film 10, such as Figure 10c shown;

[0076] 4. Coating a photoresist on the surface of the graphene film 14, performing soft baking, exposure, development and hard baking on the photoresist, and performing a plasma dry etching process on the graphene film 14 not covered by the photoresist , peeling off the photoresist to obtain the pattern of the first touch electrode 1, the first peripheral lead 2 and the first connection terminal 3, such as Figure 5 and Figure 10d sh...

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Abstract

The invention discloses a touch control module, a manufacture method of the touch control module, a touch screen and a display device. In the manufacture process of the touch control module, third wiring terminals which are formed simultaneously with graphs of second touch control electrodes, second peripheral leads and second wiring terminals and are mutually insulated can protect first wiring terminals from damage while the graphs of the second touch control electrodes, the second peripheral leads and the second wiring terminals are formed, accordingly, graphs of protecting layers are not required to be formed in the positions of the first wiring terminals before graphs of the second touch control electrodes are formed, and a one-time graph composition process can be omitted; after the graphs of the second touch control electrodes are formed, the graphs of the protecting layers are not required to be stripped, the one-time stripping process can be omitted, and the condition that the first wiring terminals are damaged due to stripping of the protecting layers and the sheet resistance of the first wiring terminals is increased can be prevented; besides, the third wiring terminals and the first wiring terminals are electrically connected, sheet resistance of the first wiring terminals can be reduced, and the electrical conductivity of the first wiring terminals is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a touch module, a manufacturing method thereof, a touch screen and a display device. Background technique [0002] With the rapid development of display technology, touch screen panels (Touch Screen Panels) have gradually spread in people's lives. [0003] The manufacturing process of the touch module in the existing touch screen, such as Figure 1a-Figure 1e As shown, it specifically includes the following steps: First, form a pattern including touch sensing electrodes 102, first peripheral traces 103 electrically connected to touch sensing electrodes 102, and first connection terminals 104 on the base substrate 101, as shown in FIG. Figure 1a shown; then, form a pattern comprising an insulating layer 105, the pattern of the insulating layer 105 exposes the first connection terminal 104, as Figure 1b shown; then, form a pattern comprising a protective layer 106, the pattern ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
Inventor 邸云萍张慧张方振吕志军孙双
Owner BOE TECH GRP CO LTD
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