Backlight system and microstructure reflector plate

A backlight system and micro-reflection technology, applied in reflectors, light guides of lighting systems, optics, etc., can solve the problems of high manufacturing cost, large number of backlight system components, and low light utilization rate.

Inactive Publication Date: 2009-01-21
SHENZHEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems in the backlight system of the prior art that at least one independent prism sheet needs to be used to concentrate the outgoing light of the light guide plate, the number of components in the backlight system is large, the manufacturing cost is hig

Method used

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  • Backlight system and microstructure reflector plate
  • Backlight system and microstructure reflector plate
  • Backlight system and microstructure reflector plate

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Embodiment Construction

[0026] Such as image 3 as shown, image 3 It is a structural schematic diagram of an embodiment of the backlight system of the present invention. The backlight system of this embodiment includes: a light source 31 , a light guide plate 32 and a reflection sheet 33 . Wherein, the light guide plate 32 includes a light incident surface for receiving light from the light source 31 , a light exit surface for emitting light, and a bottom surface opposite to the light exit surface. The shape of the light guide plate 32 can be flat, wedge-shaped or other appropriate shapes, the thickness is usually 0.1mm-50mm, and the material is selected from light-transmitting materials, usually acrylic resin or polycarbonate resin, preferably with a refractive index of 1.49 polymethyl methacrylate (PMMA). The light source 31 can be a well-known LED light source, cold cathode fluorescent tube or other suitable light source, and is arranged near the light incident surface of the light guide plate...

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Abstract

The invention relates to a backlight system and a microstructure reflector plate thereof, the backlight system comprises a light guide plate, a light source and a reflector plate, wherein the light guide plate is provided with a light inlet surface, a light outlet surface and a bottom surface which is opposite to the light outlet surface, the light source is arranged near the light inlet surface, the reflector plate is arranged near the bottom surface, and the reflector plate is equipped with a micro-reflection structure. Simultaneously, the invention also relates to a microstructure reflector plate, which is used in the backlight system for displaying of a passive lighting flat-panel, and is provided with a micro-reflection structure. By means of the above structure, light can be reflected by utilizing the reflection surface of the micro-reflection structure of the reflector plate, a light reflecting field can be modulated by changing the inclination angle of the reflection surface, the brightness value in an ideal vision field of the light guide plate can be further increased, therefore the design has flexibility and commonality, and can reduce or avoid using traditional prism sheets, thereby simplifying the device structure, increasing the optical energy usage, and reducing the cost.

Description

【Technical field】 [0001] The invention relates to a backlight system and a microstructure reflection sheet thereof, in particular to a backlight system and a reflection sheet thereof for passive luminescence flat panel display. 【Background technique】 [0002] Existing passive light-emitting flat panel displays, such as liquid crystal displays (Light crystal displays, LCDs), have the advantages of light weight, thin thickness, low power consumption, and no radiation, so they are widely used in mobile phones, digital cameras, video cameras, mp3 and other fields. Since the liquid crystal material itself does not have light-emitting properties, it is necessary to provide an additional light source system for it to realize the display function. [0003] Such as figure 1 as shown, figure 1 It is a structural schematic diagram of an existing backlight system involved in US Patent No. 6,443,583 published by 3M Company of the United States on September 3, 2002. The backlight syste...

Claims

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Application Information

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IPC IPC(8): F21V7/04F21V8/00G02F1/13357G02F1/1335
Inventor 徐平万丽丽
Owner SHENZHEN UNIV
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