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Coating composition for diffused bright-enhancement composite film laminating layer and diffused bright-enhancement composite film

A technology of coating composition and composite film, applied in optics, optical components, instruments, etc., can solve problems such as unfavorable promotion, achieve the effects of improving optical performance, reducing coating thickness, and improving adhesion

Active Publication Date: 2019-04-16
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of method has very high requirements for engraving, which is not conducive to widespread promotion.

Method used

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  • Coating composition for diffused bright-enhancement composite film laminating layer and diffused bright-enhancement composite film
  • Coating composition for diffused bright-enhancement composite film laminating layer and diffused bright-enhancement composite film
  • Coating composition for diffused bright-enhancement composite film laminating layer and diffused bright-enhancement composite film

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0057] The preparation method of the coating composition provided by the present invention: mix the acrylate oligomer, allyl benzoxazine monomer, and photoinitiator according to the proportion, and then add ethyl acetate to adjust the viscosity to 11-13s , stirred evenly, and filtered to obtain a coating composition that can be coated on a substrate.

[0058] Further, attention should be paid to shading treatment during the preparation process.

[0059] Further, the viscosity of the coating composition is measured using a Tu-4 cup.

[0060] The method of using the coating composition provided by the present invention as a laminating layer of a diffusion-enhanced composite film uses a wire bar coater to evenly coat the uniformly mixed coating composition on the blank substrate on the back of the diffusion layer at 100°C Bake for 3 minutes, remove the solvent, then compound the lower prism layer with a composite roller, and then perform UV curing under a UV curing lamp, the cur...

Embodiment 1

[0067] The invention provides a coating composition used for a bonding layer of a diffusion and enhancement composite film and a diffusion and enhancement composite film.

[0068] The coating composition comprises: novolac epoxy acrylate 625C-45 added in an amount of 64g, aliphatic polyurethane hexaacrylate 6144-100 added in an amount of 16g, dodecyl allyl benzoxazine monomer added in an amount of It is 20g, and the addition amount of photoinitiator is 2g. The photoinitiator is a combination of Irgacure 184 and Irgacure754, and the mass ratio of Irgacure 184 to Irgacure 754 is 1:1.

[0069] The haze of the diffusion layer was 88%.

[0070] The micro-prism structure of the prism layer has a height of 35 μm and an angle of 90°. The distance between the peaks of two adjacent prism structures of the prism layer is 70 μm.

[0071] Mix the coating composition evenly, then coat it on the substrate on the back of the diffusion layer, bake it at 100°C for 3 minutes, then compound th...

Embodiment 2

[0073] The coating composition comprises: novolac epoxy acrylate 625C-45 added in an amount of 64g, aliphatic polyurethane hexaacrylate 6145-100 added in an amount of 16g, dodecyl allyl benzoxazine monomer added in an amount of It is 20g, and the addition amount of photoinitiator is 2g. The photoinitiator is Irgacure 184 and Irgacure754, and the mass ratio of Irgacure 184 and Irgacure 754 is 1:1.

[0074] All the other experimental conditions are the same as in Example 1.

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Abstract

The invention relates to the technical field of the high-performance coating material, and especially relates to a coating composition for a bright-enhancement composite film laminating layer. For improving the binding force between a diffusion layer and a bright-enhancement layer in the existing diffused bright-enhancement composite film, the invention provides a coating composition for the bright-enhancement composite film laminating layer and a diffused bright-enhancement composite film. The coating composition comprises resin and photoinitiator; the resin comprises 50%-80% of acrylate oligomer and 20%-50% of allyl benzoxazine monomer, and the percent is weight percent; the adding amount of the photoinitiator is 0.5%-3% of the total weight of the resin. The coating composition providedby the invention can form a laminating layer between a prism structure top end of the composite film and the diffusion layer substrate, and has good binding effect; the optical property of the diffused bright-enhancement composite film can be greatly improved under the condition of maintaining the enough release force.

Description

technical field [0001] The present invention relates to the technical field of high-performance coating materials, in particular to a coating composition used for the bonding layer of a diffused light-enhancing composite film and a diffused light-enhancing composite film. Background technique [0002] Liquid crystal display LCD (Liquid Crystal Display) is currently the most common display technology. However, LCD is a non-luminous display device, and needs to use a backlight module BLU (Back Light Unit) to provide a bright and uniform light source to achieve the display effect. The traditional backlight module is mainly composed of four films: a lower diffusion film, a lower enhancement film, an upper enhancement film and an upper diffusion film. Among them, the light-emitting surface of the diffuser film (DIF, Diffuser Film) has a diffuser layer structure, and its light function is mainly to diffuse the incident light, play the role of atomization, and improve the uniformi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02
CPCG02B5/0226G02B5/0236
Inventor 唐海江李培源徐良霞孙书政陈冲董伦杨成章李刚张彦
Owner NINGBO EXCITON TECH
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