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Lens structure and light emitting unit

A lens structure and lens technology, applied in semiconductor devices, optics, light sources, etc. of light-emitting elements, to achieve improved light diffusion effects and good light diffusion effects

Inactive Publication Date: 2008-08-06
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, although the known technology diverges the white light 122a leaving the lens body 210 from the light-emitting surface 214 through refraction, some areas of the diffusion plate 110 (that is, the area directly above the light-emitting unit 120) still produce obvious light spots.

Method used

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  • Lens structure and light emitting unit
  • Lens structure and light emitting unit
  • Lens structure and light emitting unit

Examples

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Embodiment Construction

[0053] FIG. 3 is a schematic diagram of a light emitting unit according to an embodiment of the present invention. Referring to FIG. 3 , the light emitting unit 300 of this embodiment includes an LED light source module 310 and a lens structure 400 , wherein the lens structure 400 is disposed on the LED light source module 310 . The lens structure 400 includes a lens body 410 , and the lens body 410 has a light incident surface 412 , a light output surface 414 and a reflective surface 416 . The light incident surface 412 is opposite to the light exit surface 414 , and the reflective surface 416 is conical and connected between the light incident surface 412 and the light exit surface 414 . The area of ​​the light incident surface 412 is smaller than that of the light exit surface 414 , and the light exit surface 414 is a concave curved surface.

[0054]In the aforementioned lens structure 400 , the light incident surface 412 is a plane, and the light incident surface 412 face...

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Abstract

Disclosed is a lens structure, which comprises a lens body, and the lens body is provided with a light incidence plane, a light emergence plane and a light reflection plane. The light incidence plane is opposite with the light emergence plane, the light reflection plane is in cone shape and is connected with the middle of the light incidence plane and the light emergence plane. The area of the light incidence plane is smaller than that of the light emergence plane, and the light emergence plane is a concave surface and / or is provided with a microdiffusion particle layer. The lens structure is provided with a fine photodiffusion effect. Further, the invention also provides a luminous unit with the above-mentioned lens structure.

Description

technical field [0001] The present invention relates to a lens structure, and in particular to a lens structure for light diffusion. Background technique [0002] In recent years, flat panel displays (flat panel displays) have gradually become the mainstream of display products due to their thin thickness and light weight. Common flat-panel displays include liquid crystal displays (liquid crystal displays, LCDs), organic electro-luminescence displays (organic electro-luminescence displays, OLEDs) and plasma displays (plasma display panels, PDPs), among which the market penetration rate of liquid crystal displays is relatively high. high. [0003] The liquid crystal display is mainly composed of a liquid crystal display panel (LCD panel) and a backlight module (backlight module), wherein the backlight module is used to provide the light source required by the liquid crystal display panel. A traditional backlight module uses a cold cathode fluorescent lamp (CCFL) as a light ...

Claims

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Application Information

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IPC IPC(8): F21V5/04G02F1/13357F21Y101/02F21Y115/10G02F1/1335
Inventor 沈建佑赵昌博黄健生蔡卲瑜王志麟
Owner AU OPTRONICS CORP
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