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Area light source system

A surface light source and light source technology, which is applied in the field of surface light source systems, can solve the problems of low light utilization rate and achieve the effects of increasing display brightness, improving light utilization rate, and reducing costs

Inactive Publication Date: 2004-06-30
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defect of low light utilization rate of the existing surface light source system, the present invention provides a surface light source system with low cost and good light utilization rate

Method used

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  • Area light source system
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Embodiment Construction

[0017] Please refer to figure 2 , the surface light source system of the present invention includes a light guide plate 2, the light guide plate 2 includes a base body 25, wherein, the base body 25 further includes an incident surface 20, a transmission surface 21, an exit surface 22 and a first side 24, a second side 26 and a third side 28 . Wherein, the incident surface 20 is located between the transmission surface 21 and the exit surface 22, the light beam enters the matrix 25 of the light guide plate 2 through the incident surface 20; The light beam reaches the exit surface 22 ; the first side 24 , the second side 26 and the third side 28 are located on the sides of the exit surface 22 of the base body 25 and connected to the exit surface 22 .

[0018] Since when light passes through a surface, the surface generally has about 4% of the incident light being reflected, so in order to reduce the loss of light energy, an anti-reflection film is provided on the incident surf...

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PUM

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Abstract

The invention is a kind of surface source system which comprises source, exit beam; a light board for guiding the beam from source, the light board includes a light entrance face, the light from the source enters the light board through the entrance face; a exit face for exit the beam in the light board; several flanks on one side of the exit face; the flanks are fog flanks, reflects the beam to the light board again.

Description

【Technical field】 [0001] The invention relates to a surface light source system, in particular to a surface light source system with higher light utilization rate used in displays. 【Background technique】 [0002] The light guide plate is an important optical component of the surface light source system of the liquid crystal display. It forms a surface light source system with other optical components such as light source, reflector plate, diffuser plate and prism plate, and provides the required bright light for the display pattern of the liquid crystal display. The light guide plate mainly includes a light incident surface, an exit surface, a transmission surface and multiple sides. Its function is to guide the light emitted by a point light source or a line light source to exit from the exit surface, and at the same time improve the luminous brightness of the panel and the uniformity of its luminous luminance . [0003] U.S. Patent No. 5,947,578 announced on September 7, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V13/04G02B5/02G02F1/13357
Inventor 余泰成李青谚陈云彰吕昌岳陈杰良
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD