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Composition and falling ball impact resistant brightness enhancement film

A technology of composition and brightening film, which is applied in the direction of instruments, optics, lenses, etc., can solve the problems of white spot defects, easy white spots, and falling off of the screen, and achieve the effect of simple preparation process, convenient industrial production, and easy operation

Inactive Publication Date: 2019-06-14
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the development of touch screen technology, computers, mobile phones and many electronic products have introduced touch screen technology. However, during long-term use, white spots are likely to appear on the screen frequently clicked by fingers or stylus.
Moreover, during the use of the display device, other objects often fall on the screen, and white spots will also appear on the screen.

Method used

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  • Composition and falling ball impact resistant brightness enhancement film
  • Composition and falling ball impact resistant brightness enhancement film
  • Composition and falling ball impact resistant brightness enhancement film

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0078] The preparation method of composition provided by the invention comprises the steps:

[0079] (1) Accurately weigh and add each component by weight and mix;

[0080] (2) Disperse the mixture obtained in step (1) for 2 hours at a rotational speed of 800-1000 r / min, and then filter to obtain the composition.

[0081] The preparation method of the brightness enhancing film comprises the following steps:

[0082] (1) adopt biaxial stretching method to make transparent substrate layer;

[0083] (2) coating the composition on the surface of the substrate layer, and curing by mold rolling and ultraviolet light irradiation to form a brightness enhancing layer with a microstructure, thereby preparing a high-brightness optical brightness-enhancing film.

[0084] Wherein, the evaluation to the optical property of composition comprises:

[0085] (1) Refractive index test: drop the composition on an Abbe refractometer (WAY-2S) to test its refractive index.

[0086] Among them, t...

Embodiment 1

[0093] The invention provides a composition, which includes a first monomer, a second monomer, a photocurable resin, a photoinitiator and an auxiliary agent.

[0094] The raw materials of the composition include the following components: first monomer: 49 parts by weight; second monomer: 5 parts by weight; photocurable resin: 45 parts by weight; photoinitiator: 1 part by weight; auxiliary agent: 0.1 parts by weight Parts; wherein the first monomer is biphenylmethanol acrylate; the second monomer is pentaerythritol tetraacrylate; photocurable resin is polyether acrylic resin; initiator is 2-hydroxyl-methylphenyl propane-1-ketone ( 1173); the auxiliary agent is WE-D5410.

[0095] A brightening film is prepared from the above composition, and the preparation method of the brightening film comprises the following steps:

[0096] (1) adopt biaxial stretching method to make transparent substrate layer;

[0097] (2) coating the composition on the surface of the substrate layer, and...

Embodiment 2

[0100] Composition as described in embodiment 1, the raw material of described composition comprises following composition: the first monomer 50 weight parts; The second monomer 18 weight parts; Photocurable resin 27 weight parts; Photoinitiator 5 weight parts; 0.2 parts by weight of auxiliary agent; wherein the first monomer is tricyclodecane dimethacrylate; the second monomer is three (2-hydroxyethyl) isocyanurate triacrylate; the photocurable resin is polyether Acrylic resin; initiator is 1-hydroxycyclohexyl phenyl ketone (184); auxiliary agent is WE-D7300.

[0101] The above-mentioned composition is used to prepare a brightness enhancement film. In the preparation method of the brightness enhancement film: the substrate layer is made of PE material with a thickness of 10 μm; the microstructure of the brightness enhancement layer is a microprism structure, and the prisms of the microprism structure The bar height is 50 μm, the corner angle is 80°, and the prismatic bar is a...

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Abstract

The invention relates to the field of functional films, in particular to a composition and a falling ball impact resistant brightness enhancement film. In order to solve the problem that an existing brightness enhancement film does not resist falling ball impact, the invention provides the composition and the falling ball impact resistant brightness enhancement film. The composition provided by the invention comprises a first monomer, a second monomer, light-cured resin, a photoinitiator and an auxiliary agent. The brightness enhancement film provided by the invention comprises a brightness enhancement layer, and the brightness enhancement layer is prepared from the composition provided by the invention through ultraviolet curing. The prepared brightness enhancement film not only has higher brightness and excellent falling ball impact resistance, but also has the excellent properties of high hardness, high wear resistance and the like. The preparation process of the composition and thebrightness enhancement film provided by the invention is simple, easy to operate and convenient for industrial production.

Description

technical field [0001] The invention relates to the field of functional films, and more specifically, to a composition and an anti-falling ball impact brightness enhancing film. Background technique [0002] Liquid crystal display panels have been widely used in the display screens of computers, mobile phones, televisions, navigators, digital cameras and some instruments. Since the liquid crystal panel itself does not emit light, the backlight module, as one of the key components of the liquid crystal display panel, plays a role in providing sufficient brightness and uniform light. [0003] The basic composition of the backlight module except the light source includes from bottom to top: reflective film, light guide plate, diffusion film and brightness enhancement film, etc. Among them, the brightness enhancement film is mainly used to improve the brightness. With the popularization of mobile displays, end customers have higher and higher requirements for energy saving, and...

Claims

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Application Information

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IPC IPC(8): C08F283/00C08F290/06C08F220/18C08F222/14C08F222/22C08F222/20C08F2/48G02B5/04G02B3/00G02F1/13357
Inventor 李刚任远飞薛永富张彦唐海江
Owner NINGBO EXCITON TECH