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A kind of preparation method of anti-glare hardened film for polarizer

An anti-glare and hardened film technology, applied in the coating and other directions, can solve the problems of trouble in use, uneven color, and high process requirements, and achieve the effects of simple and efficient preparation method, good anti-glare effect, and high controllability.

Active Publication Date: 2022-05-03
HEFEI LUCKY SCI & TECH IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the way of adding particles can solve the problem that the anti-glare film is not resistant to scratches, but because there are particles inside the resin, these particles will also scatter light, and the "bright black feeling" of the image display device is poor.
In particular, with the high-definition of liquid crystal panels in recent years, this process will cause uneven brightness or color in the display pattern, that is, many flickering "bright spots" appear, this phenomenon is called "sparkle" phenomenon , which brings great trouble to people's use
Chinese patent document CN107840982A prepares an anti-glare optical hardening film for high-definition panels by controlling the particle size of nanoparticles, but this method has extremely high requirements on the process, and it is necessary to strictly control the amount of ammonium salt added in the coating solution. The order of addition of raw materials, addition amount and configuration process requirements are high, which is not conducive to large-scale production

Method used

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  • A kind of preparation method of anti-glare hardened film for polarizer
  • A kind of preparation method of anti-glare hardened film for polarizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation of anti-glare hardened film is operated according to the following steps:

[0034] 1. Prepare the first anti-glare layer: coat the coating solution for the first anti-glare layer on the PET of 80 μm, the coating solution for the first anti-glare layer consists of 5g 1,6-hexanediol dimethacrylate ( Sartomer, trade name: SR239NS, functionality: 2), 40g two-trimethylolpropane tetraacrylate (Sartomer, trade name: SR355NS, functionality: 4), 5g photoinitiator (Tianjin Tianjiao Chemical Industry Co., Ltd., trade name: 184), 0.1g leveling aid (TEGO FLOW 370), 0.1g dispersion aid (BYK-111), 1.8g organic particles (Soken Chemical, model MR- 2G, particle size 1μm) and 48g of ethyl acetate; after the first anti-glare layer is coated, it is dried in two-stage ovens, the temperature of the first-stage oven is 30°C, and the temperature of the second-stage oven is 45°C; the first anti-glare layer The coating thickness of the glare layer was 0.8 μm, and the haze of the...

Embodiment 2

[0038] The preparation of anti-glare hardened film is operated according to the following steps:

[0039] 1., prepare the first anti-glare layer: on the TAC of 25 μm, coat the coating liquid for the first anti-glare layer, the coating liquid for the first anti-glare layer is made of 20g neopentyl glycol dimethacrylate (Sartomer , trade name: SR248, functionality: 2), 32g dipentaerythritol pentaacrylate (Sartomer, trade name: SR399, functionality: 5), 0.5g photoinitiator (manufacture by Tianjin Tianjiao Chemical Co., Ltd., trade name: 1173), 5g leveling aid (BYK-315), 0.5g dispersing aid (BYK-2008), 2g organic particles (Soken Chemical, model MX-1500H, particle size 15μm) and 40g acetone Composition: After the first anti-glare layer is coated, it is dried in two-stage ovens, the temperature of the first-stage oven is 40°C, and the temperature of the second-stage oven is 50°C; The haze of the anti-glare layer was 0.5%.

[0040] 2. Prepare the second anti-glare layer: apply the...

Embodiment 3

[0043] The preparation of anti-glare hardened film is operated according to the following steps:

[0044] 1., prepare the first anti-glare layer: on the PMMA of 60 μm, coat the coating solution for the first anti-glare layer, the coating solution for the first anti-glare layer is made of 20g tetraethylene glycol dimethacrylate (sand Dorma, trade name: SR209, functionality: 2), 10g dipentaerythritol hexaacrylate (Changxing Chemical, trade name: EM266, functionality: 4), 4g photoinitiator (manufactured by Tianjin Tianjiao Chemical Co., Ltd., trade name: TPO), 4.5g leveling aid (TEGO FLOW 425), 1g dispersion aid (TEGO Dispers 652), 0.5g organic particles (Soken Chemical, model MR-10HG, particle size 10μm) and 60g Composed of ethyl acetate; after the first anti-glare layer is coated, it is dried in two-stage ovens, the temperature of the first-stage oven is 35°C, and the temperature of the second-stage oven is 40°C; the coating thickness of the first anti-glare layer is 8 μm , the ...

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Abstract

The invention relates to a preparation method of an anti-glare hardened film for a polarizer, wherein the hardened film is a second anti-glare layer, a first anti-glare layer and a transparent support from top to bottom; the preparation is carried out according to the following steps: The first anti-glare layer is coated on the support, the second anti-glare layer is coated on the surface of the first anti-glare layer, and dried and cured to form an anti-glare cured film for polarizers. The preparation method of the present invention is simple and efficient, can form an anti-glare cured film with good texture, excellent anti-glare and excellent anti-flash point, and improves the quality of picture display.

Description

Technical field: [0001] The invention relates to the technical field of thin films, in particular to a method for preparing a cured film for a polarizer. Background technique: [0002] When liquid crystal display panels and touch panels are in use, when external light such as indoor fluorescent lamps or sunlight hits the surface of the display device, strong glare will be generated, which will cause visual discomfort. Make the display less recognizable. Therefore, in order to suppress this situation, anti-glare treatment is generally performed on the surface of the image display device. [0003] Generally, the anti-glare film is mainly made by two processes: one is to coat a layer of resin on the surface of the film, and emboss the resin with an uneven structure by embossing to achieve the anti-glare effect. In this method, since no other substances are added to the resin, the interior of the resin will not reflect light due to substances with a large difference in refract...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/04C09D4/02C09D1/00C08L67/02C08L33/12C08L1/12
CPCC09D4/00C09D1/00C08J2367/02C08J2333/12C08J2301/12
Inventor 李恒韩捷程兴远徐倩倩刘玉磊
Owner HEFEI LUCKY SCI & TECH IND
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