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Composition and brightness enhancement film

A technology of a composition and a brightness enhancement film, applied in the field of brightness enhancement film and composition, can solve the problems of insufficient brightness of the brightness enhancement film, unable to meet the energy saving of mobile display equipment, low refractive index, etc. Display the effect of energy saving of equipment, easy industrial production and simple process

Inactive Publication Date: 2019-05-14
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of low refractive index of the composition used to prepare high-brightness optical films, the invention provides a composition and a brightness-enhancing film
The composition provided by the invention includes zirconia particles, the refractive index of the composition is ≥1.60, and the brightness enhancement film prepared from the composition has higher brightness performance, which can solve the insufficient brightness of the existing brightness enhancement film and cannot meet the needs of mobile display devices. energy saving problem

Method used

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  • Composition and brightness enhancement film

Examples

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Effect test

preparation example Construction

[0089] The preparation method of the zirconia particle provided by the invention comprises the following steps:

[0090] (1) Add the zirconium salt into absolute ethanol, stir and dissolve at room temperature, slowly add a mixed solution of deionized water, absolute ethanol and hydrochloric acid dropwise, the zirconium salt and deionized water undergo a hydrolysis reaction, and obtain zirconium alcohol and acid;

[0091] (2) Continue to stir at room temperature for 8-12 hours, and the zirconium alcohol undergoes self-condensation reaction to generate zirconia under the catalysis of hydrochloric acid and the acid generated by the hydrolysis reaction in step (1);

[0092] (3) The product obtained in step (2) is subjected to rotary distillation to remove small molecule products and residual deionized water to obtain zirconia particles.

[0093] The preparation method of composition provided by the invention comprises the steps:

[0094] (1) preparing zirconia particles;

[0095...

Embodiment 1

[0109] The invention provides a composition, the composition includes resin and zirconia particles, and the weight content of the zirconia particles is 48%.

[0110] The raw materials of the composition include the following components: zirconia particles: 48 parts by weight; photocurable resin: 20 parts by weight; photocurable monomer: 30 parts by weight; photoinitiator: 2 parts by weight; additives: 0.05 parts by weight ; Wherein the photocurable resin is a polyester acrylic resin; the photocurable monomer is o-phenylphenethoxyacrylate and pentaerythritol triacrylate, wherein o-phenylphenethoxyacrylate is 25 parts by weight, and pentaerythritol triacrylate 5 parts by weight; the photoinitiator is 2,4,6-trimethylbenzoyl-diphenylphosphine oxide (TPO); the additives are leveling agent and defoamer, wherein the leveling agent is BYK- 3500, 0.03 parts by weight; wherein the defoamer is BYK-354, 0.02 parts by weight.

[0111] The above-mentioned raw material components were mixed...

Embodiment 2

[0121] As in the composition described in Example 1, the weight content of the zirconia particles is 20%.

[0122] The raw materials of the composition include the following components: zirconia particles: 20 parts by weight; photocurable resin: 36 parts by weight; photocurable monomer: 40 parts by weight; photoinitiator: 4 parts by weight; additives: 0.06 parts by weight . Wherein the light-curing resin is polyester acrylic resin; the light-curing monomer is biphenylmethanol acrylate and 2 (ethoxy) bisphenol A diacrylate, wherein biphenylmethanol acrylate is 20 parts by weight, 2 (ethoxy ) Bisphenol A diacrylate is 20 weight parts; Photoinitiator is 1-hydroxycyclohexyl phenyl ketone (184); , is 0.04 parts by weight; wherein the defoamer is selected from TEGO-900, which is 0.02 parts by weight.

[0123] The above-mentioned raw material components were mixed according to their parts by weight, dispersed at 800 r / min for 2 hours, and then filtered to obtain a composition.

[...

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Abstract

The invention relates to the field of optical films, in particular to a composition and a brightness enhancement film. The composition and the brightness enhancement film are provided in order to solve the problem of low refractive index of a composition for preparing high-brightness optical films. The composition comprises resin and zirconium oxide particles in weight percentage content of 10%-50%. The brightness enhancement film comprises a brightness enhancement layer, and the brightness enhancement layer comprises resin and zirconium oxide particles in weight accounting for 10%-50% of thatof the brightness enhancement layer. The refractive index of the composition is larger than or equal to 1.60, the brightness enhancement film prepared from the composition is high in brightness, andthe problem that an existing brightness enhancement film is insufficient in brightness and fails to meet energy saving of mobile display equipment can be solved. A preparation method of the composition is simple in process, easy in operation and convenient for industrial production.

Description

technical field [0001] The invention relates to the field of optical films, more specifically to a composition and a 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] However, in mobile display devices, such as mobile phones, tablet computers (Pads), etc., the power supply of the display device is a charged storage battery. In order to increase the service life of the battery after charging, the backlight module of the display device needs to meet the more efficient performance of low voltage and high brightness, so as to save energy and reduce the consumption of battery power. The m...

Claims

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Application Information

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IPC IPC(8): C08F283/01C08F220/30C08F222/20C08F283/00C08F283/10C08F283/06C08J7/04C08J5/18G02B5/02
Inventor 任远飞薛永富李刚唐海江张彦
Owner NINGBO EXCITON TECH
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