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An optical film

An optical film and optical modifier technology, applied in the field of optical materials, can solve the problems of complex process, many factors affecting product quality, thin production, difficult quality control of high-flatness TAC film finished products, etc., to improve the flatness , The effect of realizing thin production and improving the difficulty of production

Active Publication Date: 2015-09-23
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
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, the optical film includes a PET layer (102), the PET layer is a PET optical film, and a layer of TAC layer (101) is coated or cast on the surface of the PET film.

[0027] First configure the TAC solution: Mix the materials in the following table evenly according to the weight ratio.

[0028] Material

[0029] The above TAC liquid is uniformly distributed on the The surface of the PET film is dried and formed into a film.

[0030] The product made is detected, and the detection results are as follows:

[0031] Test items

[0032] TAC film thickness

Embodiment 2

[0034] Such as figure 1 As shown, the optical film includes a PET layer (102), the PET layer is a PET optical film, and a layer of TAC layer (101) is coated or cast on the surface of the PET film.

[0035] First configure the TAC solution: Mix the materials in the following table evenly according to the weight ratio.

[0036] Material

Proportion

TAC

100

Dichloromethane

800

Methanol

43

plasticizer

10

UV absorber

2

[0037] The above TAC liquid is uniformly distributed on the The surface of the PET film is dried and formed into a film.

[0038] The product made is detected, and the detection results are as follows:

[0039] Test items

Embodiment 3

[0041] Such as figure 1 As shown, the optical film includes a PET layer (102), the PET layer is a PET optical film, and a layer of TAC layer (101) is coated or cast on the surface of the PET film.

[0042] First configure the TAC solution: Mix the materials in the following table evenly according to the weight ratio.

[0043] Material

Proportion

TAC

100

Dichloromethane

800

Methanol

43

plasticizer

10

[0044] High refractive agent

5

[0045] The above TAC liquid is uniformly distributed on the The surface of the PET film is dried and formed into a film.

[0046] The product made is detected, and the detection results are as follows:

[0047] Test items

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Abstract

The invention discloses an optical film comprising a PET film. A TAC film is coated on the PET film or arranged on the PET film through curtain coating. The invention also provides an optical film comprising a PET film. A surface modified layer or an adhesive layer is coated on the PET film. A TAC film is coated on the surface modified layer or the adhesive layer, or arranged on the surface modified layer or the adhesive layer through curtain coating. According to the invention, through composite film technology applied to PET and TAC, problems of TAC structure production difficulty can be mitigated; production of thin-type TAC films can be realized; the flatness of the surfaces of products can be improved; and the original performance of the TAC film can be maintained.

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 Applications(China)
IPC IPC(8): G02B1/111B32B7/12B32B27/36
CPCB32B23/02B32B27/36G02B1/111
Inventor 谷至华汪敏施克炜陈晓东
Owner TAIHU JINZHANG TECH CO LTD
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