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High-gamut light diffuser and production process thereof

A light diffusion sheet and high color gamut technology, which is applied in optics, optical components, instruments, etc., can solve the problems of low color gamut and poor color reproduction of LED backlights, and achieve improved color gamut, improved purity, and reduced effect of thickness

Inactive Publication Date: 2016-08-03
DONGGUAN XINJU OPTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned problems of low color gamut and poor color reproduction of LED backlight sources in the prior art, the purpose of the present invention is to provide a high color gamut light diffusion sheet and its production process

Method used

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  • High-gamut light diffuser and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A high color gamut light diffusion sheet, the composition and parts by weight of the light diffusion sheet are:

[0033] 99 raw materials

[0034] 1 part of optical masterbatch;

[0035] The material includes one or a mixture of light-transmitting PP plastic particles, PC plastic particles, PMMA plastic particles, ABS plastic particles, PS plastic particles, and MS plastic particles;

[0036] Described optical master batch comprises the mixture of 0.5 part of red optical master batch and 0.5 part of green optical master batch; The composition and parts by weight of described red optical master batch are:

[0037] 97 raw materials

[0038] 0.1 part of lubricating dispersant

[0039] 1 part of red fluorescent powder

[0040] 1 part silicone microsphere;

[0041] The composition and parts by weight of the green optical masterbatch are:

[0042] 97 raw materials

[0043] 0.1 part of lubricating dispersant

[0044] 1 part green fluorescent powder

[0045] 25 parts o...

Embodiment 2

[0054] The main steps and processes of this embodiment are the same as those in Embodiment 1, and will not be repeated here. The difference lies in the corresponding proportion of components: 15 parts of optical masterbatch, including 7.5 parts of red optical masterbatch and 7.5 parts of green optical masterbatch The mixture; wherein, the composition and parts by weight of red optical masterbatch are: 81 parts of this material, 0.5 part of lubricating dispersant, 5 parts of red fluorescent powder, 12.5 parts of organosilicon microspheres; The composition and parts by weight of green optical masterbatch are : 81 parts of raw materials, 0.5 parts of lubricating and dispersing agent, 5 parts of green fluorescent powder, 12.5 parts of silicone microspheres.

[0055] Select 85 parts of raw materials by weight ratio, select 7.5 parts of green optical masterbatch and 7.5 parts of red optical masterbatch, stir and mix evenly and put them into an extrusion molding machine, and form a di...

Embodiment 3

[0060] The main steps and processes of this embodiment are the same as those of Embodiment 1, and will not be repeated here. The difference lies in the selection and corresponding proportions of the components:

[0061] 30 parts of optical masterbatch, which contains a mixture of 15 parts of red optical masterbatch and 15 parts of green optical masterbatch; wherein, the composition and weight parts of red optical masterbatch are: 66 parts of this material, 0.9 parts of lubricating and dispersing agent, red fluorescent 9 parts of powder, 25 parts of silicone microspheres; the composition and parts by weight of the green optical masterbatch are: 66 parts of this material, 0.9 parts of lubricating dispersant, 25 parts of green fluorescent powder, and 25 parts of silicone microspheres.

[0062] Select 70 parts of raw materials by weight ratio, select 15 parts of green optical masterbatch and 15 parts of red optical masterbatch, stir and mix evenly and put them into an extrusion mol...

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Abstract

The invention discloses a high-gamut light diffuser which comprises 70-99 parts of raw material and 1-30 parts of optical master-batch .The optical master-batch is a mixture of red optical master-batch and green optical master-batch, and the additive amount of the red optical master-batch and the additive amount of the green optical master-batch each account for 1-15 parts .The light diffuser is an improvement in a light diffuser applied to a straight downward display screen backlight source and is prepared through the following method, the gamut value of the light diffuser can be remarkably increased, and the color rendition degree of a display screen can be greatly increased .One or a mixture of more of light-transmitting PP plastic particles, PC plastic particles, PMMA plastic particles, ABS plastic particles, PS plastic particles and MS plastic particles is used as the raw material; the raw material, a lubrication dispersing agent and red phosphors are taken according to proportional parts by weight and pelleted into the red optical master-batch; the raw material, a lubrication dispersing agent and green phosphors are taken according to proportional parts by weight and pelleted into the green optical master-batch; lastly, the raw material, the red optical master-batch and the green optical master-batch are mixed to be uniform according to proportional parts by weight and then charged into a double-screw extruder, and diffuser sheets are formed.

Description

technical field [0001] The invention relates to the field of diffusion sheet production, in particular to a production process of a high-color gamut light diffusion sheet suitable for direct-down display screen backlight sources. Background technique [0002] The light diffusion sheet is to use the transmitted light to continuously refract, reflect and scatter between the chemical particles and the resin. While covering the light source and the glare light source, it can make the light source emit uniform, soft and beautiful light to achieve light transmission and opacity. comfort effect. [0003] Compared with the traditional CCFL backlight, LED backlight has many advantages such as high color gamut, high brightness, long life, energy saving and environmental protection, and real-time color controllability. The screens of electronic products such as computers have more vivid colors and a higher degree of color reproduction. In order to make the color of the display more p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L69/00C08L33/12C08L55/02C08L25/06C08L71/00C08L83/04B29B9/06B29C47/00B29C71/02G02B5/02
CPCC08L23/12B29B9/06B29C48/0022B29C48/08B29C71/02C08L25/06C08L33/12C08L55/02C08L69/00C08L71/00C08L2205/025C08L2205/035G02B5/0242G02B5/0268C08L83/04
Inventor 蔡文珍
Owner DONGGUAN XINJU OPTRONICS INC
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