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Peeling auxiliary member, peeling device, and peeling method

A technology of auxiliary components and peeling devices, applied in the directions of lamination auxiliary operations, chemical instruments and methods, instruments, etc., can solve the problems of polarizing plate dirt, mixed air, foreign matter, etc.

Active Publication Date: 2019-12-10
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this inspection process, it may be found that the bonded polarizing plate is dirty or damaged, or that air or foreign matter is mixed between the polarizing plate and the substrate.

Method used

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  • Peeling auxiliary member, peeling device, and peeling method
  • Peeling auxiliary member, peeling device, and peeling method
  • Peeling auxiliary member, peeling device, and peeling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～ Embodiment 5

[0174] use figure 1 , figure 2 The peeling apparatus shown peeled the polarizing plate from the laminated body, and the peeling state of the polarizing plate at that time was investigated.

[0175] A panel with a size of 32 inches was formed by enclosing a liquid crystal material in two pieces of hard glass to make a substrate, and then bonding a polarizing plate to the substrate with an adhesive. The panel obtained in this way was used as a laminate body. Polarizing plate A was used as a polarizing plate.

[0176] The adhesive strength between the polarizing plate and the substrate in the laminate was 10N. In addition, this adhesive strength was measured using Autograph (Compact universal testing machine, manufactured by Shimadzu Corporation).

[0177] A specific method of measuring the adhesive strength is as follows. That is, first, a test piece of a polarizing plate cut into a width of 25 mm and a length of 100 mm was attached to a glass plate with an adhesive, and ...

Embodiment 6

[0189] Except that the polarizing plate B is used as the polarizing plate, and the curvature radius of the tip portion of the peeling auxiliary member included in the peeling device and the angle θ1 of the inclined portion are set according to the contents shown in Table 1, the others are the same as those in Embodiment 1 to In the same manner as in Example 5, polarizing plates were peeled from 10 laminates, and the peeled state was investigated. Table 1 shows the results.

Embodiment 7

[0195] In addition to replacing the coiling member and using the Figure 11 ~ Figure 13 Except for the peeling device having the peeling member shown, the polarizing plates were peeled from each of 10 laminates in the same manner as in Example 1, and the peeled state was investigated. Table 1 shows the results.

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Abstract

The utility model provides a stripping assisting member and a stripping device. By means of the stripping assisting member and the stripping device, a polarizer can be easily stripped from a substrate. The stripping assisting member is used for forming a stripping starting point generated when the polarizer is stripped from a laminated body with the substrate and the polarizer spliced to one face of the substrate, and is characterized by comprising a bottom face part and a top end part; the bottom face part is arranged on the face, close to the polarizer side, of the laminated body, the top end part is provided with a curved surface, and the polarizer being stripped is curved along the curved surface.

Description

technical field [0001] The present invention relates to a peeling auxiliary member, a peeling device, and a peeling method for peeling a polarizing plate from a laminate. Background technique [0002] Conventionally, liquid crystal display panels, organic EL display panels, and the like are known as panels that can be applied to an image display portion of an image display device. These panels employ a laminated body having: a substrate formed of a hard glass plate or the like; and a polarizing plate (polarizing film) bonded to one surface or Both sides of the watch back. [0003] Such a liquid crystal display panel and the like are manufactured by bonding a polarizing plate to a substrate, and the liquid crystal display panel is inspected after manufacture. In this inspection process, it is sometimes found that the bonded polarizing plate is dirty or damaged, or that air or foreign matter is mixed between the polarizing plate and the substrate. In this case, the obtained...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335B32B38/10
CPCB32B38/10G02F1/133528
Inventor 阿部浩幸川合涉史小盐智小柳德英芝田祥司由良友和张兆冈林大钧
Owner NITTO DENKO CORP