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Diffusion plate with functions of light collection, light diffusion and light reflection

A technology of light diffusion and light reflection, applied in optics, optical components, diffusing components, etc., can solve the problems of poor anti-yellowing performance of diffuser plates, increased thickness of backlight modules, and reduced light source utilization, reducing end users The effect of electricity consumption, simple structure and low production cost

Inactive Publication Date: 2013-09-11
HUIZHOU YUETAIXIANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the anti-yellowing performance of the traditional diffusion plate is poor, and more optical films are used in the process, which increases the thickness of the backlight module, reduces the utilization rate of the light source, and the brightness is not enough, and the cost is also high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The diffuser plate with the functions of light collection, light diffusion and light reflection is characterized in that it is composed of the following components in mass fraction:

[0034] Fiber-grade GPPS (transparent polystyrene) 92%

[0035] Glass beads (silicon diffuser) 2%

[0036] 1010 Antioxidant 0.2%

[0037] LD770 light stabilizer 0.5%

[0038] UV327 anti-ultraviolet light agent 0.5%

[0039] LD622 light stabilizer 0.2%

[0040] XOTS 7083T Plastic molecular complexing agent 4.6%.

Embodiment 2

[0042] Fiber-grade GPPS (transparent polystyrene) 98%

[0043] Glass beads (silicon diffuser) 1%

[0044] 1010 Antioxidant 0.1%

[0045] LD770 light stabilizer 0.2%

[0046] UV327 anti-ultraviolet light agent 0.2%

[0047] LD622 light stabilizer 0.1%

[0048]XOTS 7083T plastic molecule complexing agent 0.4%.

Embodiment 3

[0050] Fiber-grade GPPS (transparent polystyrene) 95%

[0051] Glass beads (silicon diffuser) 1.5%

[0052] 1010 Antioxidant 0.1%

[0053] LD770 light stabilizer 0.3%

[0054] UV327 anti-ultraviolet light agent 0.3%

[0055] LD622 light stabilizer 0.1%

[0056] XOTS 7083T Plastic molecular complexing agent 2.7%.

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Abstract

The invention relates to a diffusion plate with functions of light collection, light diffusion and light reflection. The diffusion plate utilizes optical-fiber-grade general purpose polystyrene (GPPS) (transparent polystyrene) as a main material and glass beads as a silicon dispersing agent to improve product penetration rate and enable light to be better refracted, reflected, diffused and the like in a product. An ageing-resistant improver and a plastic compatilizer are added to server as auxiliary materials to prolong service life of the product. The product has the functions of integrating light collection, light diffusion and light reflection on one body, has high light diffusion performance and light emitting evenness and is high in light source utilization rate. A backlight display device becomes thinner on the basis that high performance is ensured, a product yellowing-resistant effect is improved, and service life is prolonged. The product is simple in structure, reduces cost and is suitable for large scale popularization.

Description

technical field [0001] The invention relates to a light diffusion plate, in particular to a diffusion plate with functions of light collection, light diffusion and light reflection, and belongs to the field of photoelectric materials. Background technique [0002] Backlight display means that when a user uses an electronic device, the display screen on the fuselage can emit backlight to display the content more clearly. Since the display device itself does not emit light, in addition to the reflective application method, it needs to be equipped with a backlight source to realize its display function. Most electronic devices have a backlight display as long as they have a display screen. In a large-size liquid crystal display device with a direct-type design, multiple light sources are arranged on the back of the liquid crystal screen, and the light sources mainly include cold cathode tubes (CCFL), light-emitting diodes (LED) and electroluminescent devices (ELD). No matter w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02G02B5/128
Inventor 庄兴潮
Owner HUIZHOU YUETAIXIANG TECH
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