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Illuminating device and plane light-source module

A light-emitting device, surface light source technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of environmental pollution, the color and brightness variation of the cold cathode fluorescent lamp 120, and the color of the cold cathode fluorescent lamp 120 cannot be corrected, etc. Uniform intensity effect

Inactive Publication Date: 2007-03-28
CORETRONIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the color of the cold cathode fluorescent lamp 120 cannot be calibrated, and the color and brightness of the cold cathode fluorescent lamp 120 will vary as the usage time increases, thus affecting the display quality of the liquid crystal display.
In addition, since the CCFL tube 120 contains mercury, it is easy to cause environmental pollution.

Method used

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  • Illuminating device and plane light-source module
  • Illuminating device and plane light-source module
  • Illuminating device and plane light-source module

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Experimental program
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Embodiment Construction

[0046] FIG. 2A is a schematic structural view of a surface light source module according to a preferred embodiment of the present invention, and FIG. 2B is a cross-sectional view of FIG. 2A . In addition, FIG. 3A is a schematic structural diagram of the light emitting device in FIG. 2A , and FIG. 3B is a cross-sectional view of FIG. 3A .

[0047] Referring to FIG. 2A, FIG. 2B, FIG. 3A and FIG. 3B, the surface light source module 200 of this embodiment can be used in devices that require a uniform surface light source, such as a liquid crystal display, to provide the surface light source required by the liquid crystal display panel. The surface light source module 200 includes a light box 210 and a plurality of light emitting devices 220 , wherein the light box 210 has a light emitting section 212 , and the light emitting devices 220 are arranged at the bottom of the light box 210 . In addition, each light emitting device 220 includes a substrate 222 , a plurality of light sour...

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Abstract

The invention discloses a luminescent device including the base plate, many light sources and the lens part. The light sources are arrayed on the base plate which is covered by the lens part. The lens part has a saddle type refracting surface on the top of the light source which has a saddle region and two ridge regions. The saddle region is between the ridge region and the light intensity of the ridge is bigger than the saddle region. In otherwise, the invention also discloses a surface light source module which can provide the good-uniformity surface light source. The light ray can be emit from the saddle type refracting surface directly, so it can't loss the energy and improves the luminous efficiency to increase the brightness of the surface light source.

Description

technical field [0001] The invention relates to a light emitting device and a surface light source module, in particular to a light emitting device with different light output intensities in each direction and the surface light source module formed therefrom. Background technique [0002] The liquid crystal display is mainly composed of a liquid crystal panel and a backlight module, wherein the backlight module is used to provide the surface light source required by the liquid crystal panel, so that the liquid crystal display can achieve the display effect. Generally speaking, the backlight module can be roughly divided into two types: direct-type and edge-type. The direct-type backlight module is usually applied to larger-sized liquid crystal panels. [0003] FIG. 1A is a schematic diagram of a structure of a conventional backlight module, and FIG. 1B is a cross-sectional view of FIG. 1A . 1A and 1B , the existing backlight module 100 is a direct type backlight module, whi...

Claims

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Application Information

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IPC IPC(8): G02F1/1335G02F1/13357
Inventor 萧增科周文彬侯腾超
Owner CORETRONIC