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Preparation method for peelable glue protection graph of capacitive touch screen

A capacitive touch screen and protection pattern technology, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., to achieve the effect of reducing precision requirements, saving costs, and improving yield

Inactive Publication Date: 2013-02-13
PANDA ELECTRONICS GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that other unnecessary gold-plated areas can be accurately protected and the lead area is not polluted in the chemical gold-plating process of the current touch screen except for the four-side leads, and invents a preparation of a peelable protective pattern before the touch screen is gold-plated. method

Method used

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  • Preparation method for peelable glue protection graph of capacitive touch screen
  • Preparation method for peelable glue protection graph of capacitive touch screen
  • Preparation method for peelable glue protection graph of capacitive touch screen

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1-4 shown.

[0022] like figure 1 As shown, a method for preparing a peelable adhesive protection pattern on a capacitive touch screen, the first step is to uniformly print a layer of peelable adhesive 2 on a glass substrate 1 with an ITO pattern, and the protection range of the peelable adhesive 2 is required to cover Cover the functional area of ​​the entire capacitive screen, and at the same time do not cover the two cross marks 3 at the diagonal corners of the substrate 1. After printing, use an oven to dry the peelable glue 2; the second step is to print the peelable glue and dry the substrate ( figure 1 ) on the cutting machine ( figure 2 ) on the table 4, and it is required to use the two cross marks 3 on the substrate 1 to align the CCD lens 5 on the cutting machine, and then pass through the cutting machine ( figure 2...

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Abstract

The invention relates to a preparation method for a peelable glue protection graph of a capacitive touch screen. The method provided by the invention is characterized by comprising the following steps: firstly, uniformly printing a layer of peelable glue on a whole ITO (indium tin oxide) graph of a touch screen substrate by means of screen printing; secondly, drying the printed substrate in a drying oven; thirdly, putting the dried substrate on a table board of a cutting machine, aligning MARK points made on the substrate and a CCD (charge coupled device) on the cutting machine, inputting a CAD (computer aided design) file to be cut and cutting corresponding graphs by using a specifically grinded cutting head; and finally manufacturing the required peelable glue protection graph by tearing off the peelable glue on regions no longer needing to be covered and retaining the peelable glue on the region needing to be protected. The peelable glue protection graph formed by the invention is not only accurate in size and position but also convenient to adjust; edges of the peelable glue are also trim; pollution to the substrate by the drying of the peelable glue is well avoided; and the yield is effectively improved when leads at the periphery of the touch screen substrate are plated with gold.

Description

technical field [0001] The invention relates to a method for preparing a capacitive touch screen, in particular to a method for preparing a protective layer of the touch screen, in particular to a method for preparing a peelable protective pattern that can accurately cover the visible area of ​​the capacitive touch screen. Background technique [0002] At present, the structure of capacitive technology touch screen is mainly to coat a layer of transparent film body layer on the glass screen, and then add a protective glass outside the conductor layer. The double glass design can completely protect the conductive layer and the sensing layer. The capacitive touch screen is plated with long and narrow electrodes on the four sides of the touch screen, forming a low-voltage AC electric field in the conductor. When touching the screen, due to the electric field of the human body, a coupling capacitance will be formed between the finger and the conductor layer, and the current from...

Claims

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Application Information

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IPC IPC(8): G06F3/042B26D1/01
Inventor 赵业坤
Owner PANDA ELECTRONICS GROUP
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