A method for reproducing touch screen panel employing vacuum

A touch screen and panel technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve problems such as damage, reduced adhesion, breakage or damage, and achieve improved separation rate, easy separation, The effect of minimizing damage and breakage

Inactive Publication Date: 2015-04-29
J TEK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In this way, in order to recycle the cover glass 1 and display panel 3 used on the touch screen panel, it is necessary to peel off and remove the film layer 2 attached to the surface. The film layer 2 is cleanly removed from the surface of the plate glass 1 and the display panel 3
[0006] That is, in the prior art, the liquid crystal display panel 3 and the cover glass 1 are separated after the touch screen panel is heated at a high temperature. The adhesive of 3 is melted or adhered to the display panel 3 and the cover glass 1 and cannot be easily removed, or damages the AF (Anti-Finger: anti-fingerprint) coating of the cover glass 1
[0007] In addition, in the prior art, the liquid crystal display panel 3 is separated from the cover glass 1 after the touch screen panel is rapidly cooled, but if the touch screen panel is rapidly cooled in this way (direct injection of liquid nitrogen method), although the adhesive strength is reduced due to shrinkage and cohesion of the adhesive used to bond the above-mentioned film layer 3, the display panel 3 and the cover glass 1 are also rapidly shrunk at the same time, which easily causes damage or damage

Method used

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  • A method for reproducing touch screen panel employing vacuum
  • A method for reproducing touch screen panel employing vacuum
  • A method for reproducing touch screen panel employing vacuum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Example 1: Vacuum treatment of TSP at sub-zero temperatures

[0065] Move 10 TSPs of 4.0″AMOLED (active-matrix organic light-emitting diode: active matrix organic light-emitting diode) type and 10 TSPs of 4.3″LCD type to the fixture, and put them into the vacuum chamber at one time (manufacturer : HANBAEK SCIENTIFIC).

[0066] Then, after the first cooling of cooling the temperature of the vacuum chamber to -20°C to -30°C at a rate of 5°C / min, after 5 minutes, the second cooling of cooling to -50°C to -80°C is carried out (Examples 1-1, 1-2, 1-3 and 1-4). In addition, within 10 minutes, the vacuum is maintained at -760mmHg for a time ranging from 1 to 10 minutes. Thereafter, the display panel (LCM) and the FPCB were separated from the product by hand by releasing the vacuum for 10 minutes and taking out from the jig.

Embodiment 2

[0067] Example 2: Vacuum treatment of TSP at temperatures above zero

[0068] After moving 10 each of 4.0″AMOLED type TSP and 4.3″LCD type TSP to the jig, they were placed in a vacuum chamber (manufacturer: HANBAEK Science) at one time.

[0069] Then, the temperature of the vacuum chamber was raised to 50-80°C at a rate of 5°C / min (Example 2-1, 2-2, 2-3 and 2-4), and within 10 minutes, the temperature was increased to 760mm Hg is maintained under vacuum for a time in the range of 1 to 10 minutes. Thereafter, the display panel (LCM) and the FPCB portion were separated from the product by hand by releasing the vacuum for 10 minutes and taking it out from the jig.

Embodiment 3

[0070] Embodiment 3: According to the separation effect measurement of different vacuum treatment conditions

[0071] In Examples 1 and 2 above, the degree of separation between the display panel (LCM) and the FPCB was measured. That is, 10 operators sequentially separated the display panel (LCM) and the FPCB part by hand for each of the 10 TSPs, and inspected the appearance for evaluation.

[0072] The evaluation criteria are: based on the standard in Table 1, the full score is 10 points, the results of Example 1 are shown in Table 2, and the results of Example 2 are shown in Table 3.

[0073] 【Table 1】

[0074] Fraction

Result representation

Remark

9~10 minutes

◎

Easy to separate by hand, good appearance

7 to 8 points

○

Not easy to separate by hand, but looks good

5 to 6 points

△

Easy to separate by hand, but poor appearance

less than 5 points

X

Difficult to separate by hand and poor appearance...

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PUM

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Abstract

The present invention relates to a method for reproducing a touch screen panel (TSP) and, more particularly, to a reproducing method of a TSP: including an electrode deposition layer having electrodes fixed between a display panel and cover glass by an optical clean adhesive (OCA). The method for reproducing the touch screen panel employing vacuum is characterized in that separating the display panel from the vacuated touch screen panel after placing the touch screen panel in a vacuum chamber for vacuum processing. According to the method, high temperature heating is not employed according to the prior art so that the OCA is not stuck; rapid cooling is prevented so that the OCA is easily separated, the breakage and damage to the touch screen panel can be reduced, and the display panel can be cleanly separated.

Description

technical field [0001] The present invention relates to a regeneration method of a touch screen panel (Touch Screen Panel, TSP) using a vacuum, and in particular to performing vacuum treatment on the above-mentioned touch screen panel, so as to prevent the bonding of the optically transparent glue and prevent the touch screen panel from being damaged or damaged due to shrinkage, In addition, it is a method of separating the display panel of the above-mentioned touch panel panel from the FPCB (Flexible Printed Circuit Board: flexible printed circuit board) and / or the cover glass neatly and easily. Background technique [0002] Generally speaking, a touch screen panel (TSP) is a device for inputting various data and signals with a finger or a pen on various display screens such as desktop monitors, notebook monitors, tablet PCs, and smartphones to make the computer execute specific commands. input device. [0003] figure 1 It is a schematic diagram of the interlayer structur...

Claims

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Application Information

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IPC IPC(8): G06F3/041
CPCG06F3/0412G06F2203/04103
Inventor 丁海运郑镇土洪性哲李京美赵秉宣
Owner J TEK
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