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an optical film

A technology of optical film and optical modifier, which is applied in the field of optical materials, can solve the problems of many factors affecting product quality, complex manufacturing process, thin production, and difficult quality control of high-flatness TAC film products, so as to achieve thinning Production, improve flatness, improve the effect of production difficulty

Active Publication Date: 2018-07-03
TAIHU JINZHANG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relatively complex manufacturing process and many factors affecting product quality, it is very difficult to produce thin, high-flatness TAC films and control the quality of finished products

Method used

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  • an optical film
  • an optical film
  • an optical film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] like figure 1 As shown, the optical film includes a PET layer, the PET layer is a PET optical film, and a layer of TAC is coated or cast on each of the two surfaces of the PET film.

[0025] First configure the TAC solution: Mix the materials in the following table evenly according to the weight ratio.

[0026] Material

Proportion

TAC

100

Dichloromethane

800

Methanol

43

plasticizer

10

[0027] The above TAC liquid is uniformly distributed on the The two surfaces of the PET film are dried and formed into a film.

[0028] The product made is detected, and the detection results are as follows:

[0029] Test items

Embodiment 2

[0031] like figure 1 As shown, the optical film includes a PET layer, and the PET layer is a PET optical film, and a layer of TAC is coated or cast on both surfaces of the PET film.

[0032] First configure the TAC solution: Mix the materials in the following table evenly according to the weight ratio.

[0033] Material

Proportion

TAC

100

Dichloromethane

800

Methanol

43

plasticizer

10

UV absorber

2

[0034] The above TAC liquid is uniformly distributed on the The two surfaces of the PET film are dried and formed into a film.

[0035] The product made is detected, and the detection results are as follows:

[0036] Test items

Embodiment 3

[0038] like figure 1 As shown, the optical film includes a PET layer (102), the PET layer is a PET optical film, and a TAC layer (101) is coated or cast on the two surfaces of the PET film.

[0039] First configure the TAC solution: Mix the materials in the following table evenly according to the weight ratio.

[0040] Material

Proportion

TAC

100

Dichloromethane

800

Methanol

43

plasticizer

10

High refractive agent

5

[0041] The above TAC liquid is uniformly distributed on the The two surfaces of the PET film are dried and formed into a film.

[0042] The product made is detected, and the detection results are as follows:

[0043] Test items

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Abstract

The invention discloses an optical film, which comprises a layer of PET film, and a layer of TAC layer is coated or cast on the two surfaces of the PET film. Through the composite film technology of PET and TAC, the present invention can improve the production difficulty of the TAC structure, realize the thin production of the TAC film, improve the flatness of the product surface, and maintain the original performance of the TAC film.

Description

technical field [0001] The invention discloses an optical thin film, which belongs to the field of optical materials. Background technique [0002] TAC (triacetate cellulose) film is a widely used optical film. Its products are used in polarizing plates for displays, film bases for photography, anti-glare lenses and mirrors, explosion-proof films and other fields. Due to its high light transmittance and good water resistance It also has a certain mechanical strength, and at the same time has optical uniformity, and can isolate moisture and air. It also has the function of blocking ultraviolet rays in the display and lens industries. Due to the above advantages, TAC film has become an irreplaceable optical material in the industry. [0003] The manufacturing process of TAC membrane includes the steps of TAC polymer solution configuration, filtration, film casting, pre-drying, stripping, post-drying, and winding. Due to the relatively complex manufacturing process and many fa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/111G02B1/18B32B27/36B32B7/12
Inventor 谷至华汪敏施克炜陈晓东
Owner TAIHU JINZHANG TECH CO LTD
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