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Liquid crystal display full lamination high refractive index silica gel

A technology of liquid crystal display and refractive index, which is applied in the field of high refractive index silica gel and high refractive index silica gel. The effects of adhesion and heat resistance

Pending Publication Date: 2019-05-03
SUZHOU TONGLI PHOTOELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used silica gel for full bonding of LCD screens on the market is low-refractive index methyl silicone oil / silicone resin, and there is no disclosed material with a high refractive index. Therefore, it is necessary to design a high-refractive index silicone for full bonding of LCD screens.

Method used

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  • Liquid crystal display full lamination high refractive index silica gel
  • Liquid crystal display full lamination high refractive index silica gel
  • Liquid crystal display full lamination high refractive index silica gel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: A high-refractive-index silica gel for full lamination of liquid crystal displays

[0027] Component A: Weigh 50g of methylphenylvinyl silicone resin, 49.9g of methylphenylvinyl silicone oil, 0.1g of catalyst platinum-methylphenylpolysiloxane complex, and platinum content of 5000ppm, and add them in order to mix and stir Evenly, the A component is obtained;

[0028] Component B: Weigh 25g of POSS-modified hydrogen-containing silicone oil (structural formula (1)), 40g of methylphenylvinyl silicone resin, and 24.9g of methylphenylvinyl silicone oil. g, 0.1 g of the inhibitor 1,1,3-triphenyl-2-propyn-1-ol, added in sequence, mixed and stirred evenly to obtain the B component. Structural formula (1) is as follows:

[0029]

[0030] In the formula, R is R' is -CH 2 CH 2 Si(OMe) 3 , Me is methyl.

[0031] POSS-modified hydrogen-containing silicone oil with the functions of cross-linking agent and adhesive is used as modified POSS, which is a cross-linkin...

Embodiment 2

[0035] Example 2: A high-refractive-index silica gel for full lamination of liquid crystal displays

[0036] Component A: Weigh 50g of methylphenylvinyl silicone resin, 49.9g of methylphenylvinyl silicone oil, 0.1g of catalyst platinum-methylphenylpolysiloxane complex, and platinum content of 5000ppm, and add them in order to mix and stir Evenly, the A component is obtained;

[0037] Component B: Weigh 20g of the above-mentioned silicon hydrogen-containing alkoxy-containing POSS modified silicone oil (structural formula (1)), 30g of methylphenylvinyl silicone resin, 20g of methylphenylvinyl silicone oil, inhibitor 1,1 , 0.1 g of 3-triphenyl-2-propyn-1-ol was added in sequence and mixed and stirred evenly to obtain the B component;

[0038] When in use, mix the components A and B evenly in a weight ratio of 1:0.8, vacuum defoam for 20 minutes, pour glue on the backlight module or cover plate, and heat at 70°C for 1 hour , and then heated at 80°C for 4 hours.

Embodiment 3

[0039] Example 3: A high-refractive-index silica gel for full lamination of liquid crystal displays

[0040] Component A: Weigh 50g of methylphenylvinyl silicone resin, 49.9g of methylphenylvinyl silicone oil, 0.1g of catalyst platinum-methylphenylpolysiloxane complex, and platinum content of 5000ppm, and add them in order to mix and stir Evenly, the A component is obtained;

[0041] Component B: Weigh 30g of the above-mentioned silicon hydrogen-containing alkoxy-containing POSS modified silicone oil (structural formula (1)), 50g of methylphenylvinyl silicone resin, 19.9g of methylphenylvinyl silicone oil, inhibitor 1, Add 0.1 g of 1,3-triphenyl-2-propyn-1-ol in sequence, mix and stir evenly to obtain the B component;

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Abstract

The invention discloses a liquid crystal display full lamination high refractive index silica gel. The liquid crystal display full lamination high refractive index silica gel comprises a component A and a component B; the component A comprises, by weight, 50 to 60 parts of methylphenyl vinyl silicone resin, 35 to 50 parts of methylphenylvinyl silicone oil, and 0.1 to 0.3 part of a platinum group catalyst; the component B comprises, by weight, 20 to 30 parts of POSS modified hydrogen-containing silicone oil with cross-linking agent and bonding agent functions, 30 to 50 parts of methylphenyl vinyl silicone resin, 20 to 30 parts of methylphenylvinyl silicone oil, and 0.1 to 0.3 part of an inhibitor. The light transmittance of the liquid crystal display full lamination high refractive index silica gel is improved, refractive index difference among lamination mediums is reduced, the display effect of display screens is improved effectively, and in addition, material heat resistance is improved through introduction of phenyl groups.

Description

technical field [0001] The invention relates to a high-refractive-index silica gel for full bonding of liquid crystal displays, in particular to a high-refractive-index silica gel with high strength, excellent heat resistance, and excellent adhesion to substrates, belonging to the technical field of adhesive materials. Background technique [0002] At present, as liquid crystal displays are widely used in fields such as computers, televisions, mobile phones, and automobiles, the reliability of filling materials used in screens plays a key role in the performance of liquid crystal displays. The traditional materials used for touch screen filling mainly include unsaturated polyester, acrylic resin, polyurethane and epoxy resin. However, due to the poor low temperature resistance of the above materials, they are easy to crack, have high curing shrinkage and are easy to yellow. Variation and other shortcomings, will be limited in the actual application process. [0003] Additio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/07C09J183/05C09J11/06H01L33/56
CPCC09J11/06H01L33/56
Inventor 华永军唐强
Owner SUZHOU TONGLI PHOTOELECTRIC CO LTD
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