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Method for peeling polarizers and method and system for identifying types of polarizers

A kind of polarizer and type technology, which is applied in the direction of chemical instruments and methods, optics, optical components, etc., can solve the problems that the specific composition of the optical film cannot be determined, and it is difficult to realize the non-destructive and rapid separation of the optical film of the polarizer, so as to achieve the effect of promoting separation

Active Publication Date: 2019-04-05
莆田三利谱光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thickness of the polarizer is generally about 100-200 μm. The number of layers of the polarizer can be clearly seen by using a high-magnification metallographic microscope, but the specific composition of each layer of optical film cannot be determined
[0004] In order to understand the material and composition of the optical films of each layer of the polarizer, it is necessary to perform peeling analysis on each layer of the polarizer. However, the thickness of each layer of optical film is small, the thinnest is as low as several microns, and each layer of optical film The bonding between them is very tight, and it is difficult to achieve non-destructive and rapid separation of the optical films of each layer of the polarizer only by mechanical external force

Method used

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  • Method for peeling polarizers and method and system for identifying types of polarizers
  • Method for peeling polarizers and method and system for identifying types of polarizers
  • Method for peeling polarizers and method and system for identifying types of polarizers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] This embodiment provides a method for identifying the type of polarizer, including the following steps:

[0070] 1. Peel off the polarizer

[0071] (1) Take a glass test tube (5-8cm high, 2-3cm diameter), add 2mL deionized water, the liquid level is about 0.8cm from the bottom of the glass test tube.

[0072] (2) Take a polarizer with a size of 3.0×2.0 cm, place the polarizer obliquely in the container, and immerse the bottom of the polarizer in water; then, seal the glass test tube.

[0073] (3) Take a constant temperature water bath, set the temperature to 80°C, and then place a beaker full of deionized water in the water bath for heating; after the water temperature in the beaker reaches 80°C and stabilizes, set the temperature in step (2) The sealed glass test tube was inserted into the beaker for heating in a water bath. figure 1 It is a schematic diagram of the heating process of the polarizer in this embodiment.

[0074] After heating for 8 minutes, white edge...

Embodiment 2

[0085] This embodiment provides a method for identifying the type of polarizer, including the following steps:

[0086] 1. Peel off the polarizer

[0087] (1) Take a glass test tube, add 4mL deionized water, the liquid level is about 1.2cm from the bottom of the glass test tube.

[0088] (2) Take a polarizer with a size of 3.5×2.7 cm, place the polarizer obliquely in the container, and immerse the bottom of the polarizer in water; then, seal the glass test tube.

[0089] (3) Take a constant temperature water bath, set the temperature to 80°C, and then place a beaker full of deionized water in the water bath for heating; after the water temperature in the beaker reaches 80°C and stabilizes, set the temperature in step (2) The sealed glass test tube was inserted into the beaker for heating in a water bath. figure 1 It is a schematic diagram of the heating process of the polarizer in this embodiment.

[0090] After heating for 15 minutes, white edges appeared on the edge of th...

Embodiment 3

[0101] This embodiment provides a method for identifying the type of polarizer, including the following steps:

[0102] 1. Peel off the polarizer

[0103] (1) Take a glass test tube, add 4mL deionized water, the liquid level is about 1.2cm from the bottom of the glass test tube.

[0104] (2) Take a polarizer with a size of 3.8×3.0 cm, place the polarizer obliquely in the container, and immerse the bottom of the polarizer in water; then, seal the glass test tube.

[0105](3) Take a constant temperature water bath, set the temperature to 85°C, and then place a beaker full of deionized water in the water bath for heating; after the water temperature in the beaker reaches 80°C and stabilizes, set the temperature in step (2) The sealed glass test tube was inserted into the beaker for heating in a water bath. figure 1 It is a schematic diagram of the heating process of the polarizer in this embodiment.

[0106] After heating for 10 minutes, white edges appeared on the edge of the...

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Abstract

The invention belongs to the technical field of panel display, and particularly relates to a method for peeling polarizers and a method and system for identifying types of the polarizers. The method for peeling the polarizers includes the steps that a container containing water and a polarizer to be separated are provided; the polarizer at least comprises an upper protecting film, a polarizing film and a lower protecting film, wherein the polarizing film is located between the upper protecting film and the lower protecting film; the polarizer is placed in the container, and part of the polarizer is immersed in water; the container is sealed and then heated until a seam appears between the upper protecting film and the lower protecting film of the polarizer immersed in water; and the polarizer is peeled layer by layer with the seam as an entry point. By means of the method for peeling the polarizers, all optical films of the polarizers can be quickly obtained without damage; then, eachoptical film is analyzed and detected through an infrared spectroscopic method, specific materials of the optical films can be identified easily, conveniently, quickly and accurately, and thus the specific types of the polarizers can be acquired.

Description

technical field [0001] The invention belongs to the field of flat panel display technology, and in particular relates to a method for peeling off a polarizer, a method for identifying the type of the polarizer and a system thereof. Background technique [0002] Polarizers can produce polarized light, and the imaging of liquid crystal displays must rely on polarized light, which is a key part of liquid crystal displays. The polarizer is a composite layer structure consisting of multiple optical film layers. Its basic structure includes: a polarizing film in the middle, and upper and lower protective films on both sides of the polarizing film for protection. At present, the polarizing film mainly refers to PVA (polyvinyl alcohol), and the upper and lower protective films are an optical film with high light transmittance and high humidity and heat resistance, usually TAC (triacetyl cellulose). The lower TAC can also be replaced by PET (polyethylene terephthalate), COP (cyclool...

Claims

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Application Information

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IPC IPC(8): G02B5/30G02F1/1335B32B38/00G01N21/3563
CPCG02F1/133528G01N21/3563G02B5/3041B32B38/105
Inventor 周婷婷梁郅旺钟铁涛霍丙忠孙琴
Owner 莆田三利谱光电科技有限公司