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Preparation process of capacitive touch screen, and capacitive touch screen

A technology of capacitive touch screen and preparation process, applied in the direction of electric digital data processing, input/output process of data processing, instruments, etc., can solve problems such as high difficulty, low product yield and production efficiency, poor contact, etc., and achieve improvement The effect of improving efficiency, improving product yield, and improving alignment accuracy

Inactive Publication Date: 2015-08-26
陈彦林
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the production of capacitive touch screens, the substrate with a transparent conductive layer is etched, the transparent conductive layer is etched into the required pattern, and the FPC and the transparent conductive layer are connected by printing conductive silver paste. The latest technology is that the transparent conductive layer is directly and FPC connection, no longer printing conductive silver paste, which can reduce the finished product and improve efficiency, but this requires precise alignment between the transparent conductive layer and the FPC first, and then bonding, otherwise it will lead to poor contact and other problems
However, since the transparent conductive layer is transparent, it is difficult to align the FPC with the transparent conductive layer, resulting in low product yield and production efficiency.

Method used

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  • Preparation process of capacitive touch screen, and capacitive touch screen
  • Preparation process of capacitive touch screen, and capacitive touch screen

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Embodiment

[0031] Example: such as figure 1 , figure 2 Shown, the preparation technology of a kind of capacitive touch screen of the present invention, it comprises the following steps:

[0032] (1) Lay the transparent conductive layer 3 on the substrate 4, and coat the acid-resistant film 2 on the transparent conductive layer 3 according to the set conductive pattern. The acid-resistant film 2 is used to protect the part of the transparent conductive layer 3 that does not need to be etched ;

[0033] (2) if figure 2 As shown, the target is set on the acid-resistant film 2, and the transparent acid and alkali resistant material 1 is coated on the target; figure 1 Among them, the diagram is a structural diagram after etching, and the acid-resistant film 2 is the target;

[0034] (3) Etching and removing the film, the part of the transparent conductive layer 3 that is not coated with the acid-resistant film 2 is acid-etched, thereby forming a conductive pattern on the substrate 4, an...

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Abstract

The present invention discloses a preparation process of a capacitive touch screen, which comprises the following steps: (1) laying a transparent conductive layer on a substrate, and coating an acid-proof film on the transparent conductive layer according to the set conductive patterns; (2) setting a target on the acid-proof film, and coating a transparent acid and alkali-resistant material on the target; (3) implementing etching to retreat the film to form the conductive patterns on the substrate, and reserving the target for protection of the acid and alkali-resistant material; (4) combining optically clear adhesive (OCA), and laying the OCA on the substrate to coat the conductive patterns; (5) cutting into particles, and dividing a large piece of substrate into several small functional pieces; (6) binding FPC, positioning through the target, and binding the target corresponding to the FPC to the functional pieces; and (7) combining transparent plates, and laying the transparent plates onto the functional pieces. The present invention further discloses a capacitive touch screen. The present invention solves the problem that the target on the transparent conductive layer is transparent and hard to perform contraposition, reduces contraposition difficulty, and improves yield rate efficiency of the process requiring contraposition.

Description

technical field [0001] The invention relates to a touch screen, in particular to a preparation process of a capacitive touch screen and a capacitive touch screen produced by the preparation process. Background technique [0002] At present, in the production of capacitive touch screens, the substrate with a transparent conductive layer is etched, the transparent conductive layer is etched into the required pattern, and the FPC and the transparent conductive layer are connected by printing conductive silver paste. The latest technology is that the transparent conductive layer is directly and For FPC connection, conductive silver paste is no longer printed, which can reduce the finished product and improve efficiency, but this requires precise alignment between the transparent conductive layer and the FPC before bonding, otherwise it will lead to problems such as poor contact. However, since the transparent conductive layer is transparent, it is difficult to perform target ali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
Inventor 陈彦林
Owner 陈彦林
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