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A kind of polarizer adhesive and preparation method of low blue light polarizer

A technology for polarizers and adhesives, applied in the direction of adhesive types, unsaturated alcohol copolymer adhesives, non-polymer adhesive additives, etc., can solve the problem of adding UV absorbers, polarizer foreign matter, scratches Polarization degree and other issues, to achieve the effect of simple preparation process, excellent optical performance, and reduce the degree of perception

Active Publication Date: 2021-04-13
SHENZHEN SAPO PHOTOELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the addition of these additives can reduce the transmittance of the polarizer in the blue light band, it can cause optical problems such as foreign matter, omissions, scratches and other appearance defects on the polarizer, as well as a decrease in the degree of polarization, so it cannot be added to the polarizer adhesive. UV absorbers to suppress blue light

Method used

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  • A kind of polarizer adhesive and preparation method of low blue light polarizer
  • A kind of polarizer adhesive and preparation method of low blue light polarizer
  • A kind of polarizer adhesive and preparation method of low blue light polarizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Select polyvinyl alcohol with a degree of polymerization of 2800 as the first colloid, select polyvinyl alcohol with a degree of polymerization of 900 and contain 8% mass fraction of chloropyridine as the second colloid, add the same amount of water respectively, and heat Swell under conditions for 70 minutes to obtain a colloidal swelling.

[0051] The first colloid and the second colloid are mixed at a temperature of 40°C according to a mass ratio of 5:1, and at the same time, deionized water is added to dilute to a solid content of 3.6% of the glue, and then the mixture is placed in a reactor at 93°C Stir in medium for 80 minutes, and obtain the adhesive precursor after cooling.

[0052] The total mass ratio of 1:60 of boric acid, 1:500 of azobisisopropylimidazoline hydrochloride and the adhesive precursor was mixed to obtain a polarizer adhesive with a viscosity of 23.1 cPs.

[0053] The above polarizer adhesive 2 is used to bond the upper TAC layer 1, the polarize...

Embodiment 2

[0057] Select polyvinyl alcohol with a degree of polymerization of 3300 as the first colloid, select polyvinyl alcohol with a degree of polymerization of 950 and contain 4% mass fraction of sodium chloride and 7% pyridine as the second colloid, add an equal amount of water respectively, Swell for 55 minutes under the condition of 40° C. to obtain a colloidal swollen product.

[0058] The first colloid and the second colloid are mixed at a temperature of 38°C according to a mass ratio of 8:1, and at the same time, deionized water is added to dilute to a solid content of 4.7% of the glue, and then the mixture is placed in a 95°C reactor Stir in medium for 65 minutes, and obtain the binder precursor after cooling.

[0059] The total mass ratio of 1:75 of succinaldehyde, 1:700 of cumene hydroperoxide and the adhesive precursor was mixed to obtain a polarizer adhesive with a viscosity of 46.2 cPs.

[0060] The above polarizer adhesive 2 is used to bond the upper TAC layer 1, the p...

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Abstract

The invention provides a polarizer adhesive and a method for preparing a low-blue-light polarizer, wherein the preparation method of the polarizer adhesive includes preparing a first colloidal swollen product, and adding an iodine ion spectrum The blue-shifted heterocyclic compound or the second colloidal swollen product of the metal halide; the preparation of an adhesive precursor; and the mixing of a crosslinking agent, a free radical initiator and the adhesive precursor to obtain a polarizer adhesive. The low-blue-light polarizer includes bonding with the above-mentioned polarizer adhesive and performing high-temperature treatment. The invention adjusts the spectrum of the polarizer in the direction of the blue primary color light stimulation value function, and finally obtains a low-blue polarizer that can reduce the sensitivity of the human eye to blue primary color light, and because the adhesive does not contain insoluble It is used as a water-based UV absorber, so there will be no appearance defects such as foreign matter, short spots, scratches, and optical problems such as a decrease in polarization degree. The finished polarizer has excellent appearance and optical performance.

Description

technical field [0001] The invention relates to the technical field of adhesive glue production for polarizers, in particular to a polarizer adhesive capable of reducing blue primary color light and a method for preparing a low-blue-light polarizer. Background technique [0002] With the rapid development of liquid crystal electronic products such as mobile phones, computers and televisions, the time spent by the human eye on the display screen has increased sharply, and the blue light generated by liquid crystal display devices will cause irreversible damage to the retina. Therefore, there are higher requirements for the degree of blue light removal of the display screen. [0003] At present, the main method of eliminating blue light is mainly realized by attaching an anti-blue light film or coating a coating that absorbs blue light. Anti-blue light; Chinese Patent No. CN201110386965 improves the anti-blue light level of the product by coating a layer of composite coating ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J129/04C09J11/04C09J11/06G02B5/30G02F1/1335
CPCC08L2205/025C09J11/04C09J11/06C09J129/04G02B5/305G02F1/133528C08L29/04C08K5/3432C08K3/38C08K5/3445C08K13/02C08K3/16C08K5/07C08K5/14
Inventor 李宗珀岳云豪陈敏李东英张宁峰
Owner SHENZHEN SAPO PHOTOELECTRIC