CN1434335A - Improvement method for arca source of LED - Google Patents
Improvement method for arca source of LED Download PDFInfo
- Publication number
- CN1434335A CN1434335A CN 02102476 CN02102476A CN1434335A CN 1434335 A CN1434335 A CN 1434335A CN 02102476 CN02102476 CN 02102476 CN 02102476 A CN02102476 A CN 02102476A CN 1434335 A CN1434335 A CN 1434335A
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- light
- guide plate
- led
- light guide
- rhombus lens
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Abstract
The invention is an improved method of the area source of the LED. It mainly consists of the diffuse piece, the rhombic optic, the light-guide board, the reflecting layer, the LED, the base board and the side rhombic optic, with the rhombic optical placed in the middle of the LED and the light-guide board, focuses the light produced by the LED by the side rhombic optic, and then make the light enter from the side of the light-guide board, and then makes the even process by the surface of the light-guide board and the reflection by the reflecting layer, and finally makes the light through the diffuse piece and the rhombic optic so as to produce the area source.
Description
Technical field
The present invention relates to a kind of modification method of light source, specifically be meant the modification method of LED surface light source.
Background technology
Area source is a kind of flat luminous source, main application is the backlight of LCD (LCD), according to kenel small-sized fluorescent lamp, cold light film, light emitting diode are arranged respectively, wherein have light emitting diode only for using low-work voltage and the advantage of high life widely mobile phone and PDA use.
Tradition is used the area source (seeing also Fig. 1) of light emitting diode, it mainly is made up of diffusion sheet, rhombus lens, light guide plate, reflection horizon, light emitting diode and substrate, the light that produces of light emitting diode wherein, side through light guide plate is injected, through the equal optical processing on light guide plate surface and the light reflection in reflection horizon, see through diffusion sheet and rhombus lens at last and produce planar light source again.But because the light that light emitting diode produces is a three-dimensional extensive angle but not parallel angle, the light that enables to inject light guide plate was both not exclusively also inhomogeneous.
Summary of the invention
The object of the present invention is to provide a kind of modification method of LED surface light source, the light that light emitting diode is produced than wide-angle makes it more concentrated, provide a parallel and uniform light to light guide plate, so structure can increase area source light intensity and light uniformity coefficient, and improve luminescence efficiency.
For achieving the above object, the modification method of a kind of LED surface light source provided by the invention, it mainly is made up of diffusion sheet, rhombus lens, light guide plate, reflection horizon, light emitting diode, substrate and side rhombus lens, wherein the side rhombus lens places in the middle of light emitting diode and the light guide plate, utilize and send out the light that diode produces, after concentrating light, the side rhombus lens injects from the side of light guide plate again, and, see through diffusion sheet and rhombus lens at last and produce planar light source through the equal optical processing on light guide plate surface and the light reflection in reflection horizon.
Description of drawings
Through following detailed description and cooperate its relevant drawings, will further understand structure of the present invention and characteristics, wherein:
Fig. 1 is the area source structural drawing of traditional approach;
Fig. 2 is an area source structural drawing of the present invention.
Embodiment
Please refer to Fig. 2, it is the modification method of LED area source of the present invention, and it mainly is made up of light guide plate 1, light emitting diode 2, reflection horizon 3, diffusion sheet 4, substrate 7, rhombus lens 5 and side rhombus lens 6, wherein:
Rhombus lens 5, for being stacked and placed on the diffusion sheet 4, it act as, and the light that makes ejaculation is all even to make light parallel;
Side rhombus lens 6, be one with rhombus lens 5 identical materials, its function is different with rhombus lens 5, in order to place light emitting diode 2 and light guide plate 1 middle, improve the light that light emitting diode 2 produces than wide-angle and make it more concentrated, provide a parallel and uniform light to light guide plate 1, so structure can increase light intensity and light uniformity coefficient;
Above-mentioned member is formed the LED area source; It is characterized in that placing light emitting diode 2 and light guide plate 1 centre with side rhombus lens 6, the light that utilizes light emitting diode 2 to produce, after concentrating light, side rhombus lens 6 injects from the side of light guide plate 1 again, and all light reflections in optical processing and reflection horizon 3 through light guide plate 1 surface, see through diffusion sheet 4 and rhombus lens 5 generation planar light sources at last.
In sum, the present invention has improvement and progressive, has the backlight industry applying value of display, more meets energy-conservation, high efficiency new backlight method for making, can apply to various backlight demands.
Claims (1)
1, a kind of modification method of LED surface light source, it mainly is made up of diffusion sheet, rhombus lens, light guide plate, reflection horizon, light emitting diode, substrate and side rhombus lens, wherein the side rhombus lens places in the middle of light emitting diode and the light guide plate, utilize and send out the light that diode produces, after concentrating light, the side rhombus lens injects from the side of light guide plate again, and, see through diffusion sheet and rhombus lens at last and produce planar light source through the equal optical processing on light guide plate surface and the light reflection in reflection horizon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021024766A CN1183410C (en) | 2002-01-22 | 2002-01-22 | Improvement method for arca source of LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021024766A CN1183410C (en) | 2002-01-22 | 2002-01-22 | Improvement method for arca source of LED |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1434335A true CN1434335A (en) | 2003-08-06 |
| CN1183410C CN1183410C (en) | 2005-01-05 |
Family
ID=27627576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021024766A Expired - Fee Related CN1183410C (en) | 2002-01-22 | 2002-01-22 | Improvement method for arca source of LED |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1183410C (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313874C (en) * | 2004-07-27 | 2007-05-02 | 友达光电股份有限公司 | LED back light module |
| CN100383639C (en) * | 2003-09-06 | 2008-04-23 | 鸿富锦精密工业（深圳）有限公司 | Back-to-light module |
| CN100383637C (en) * | 2003-09-26 | 2008-04-23 | 鸿富锦精密工业（深圳）有限公司 | LED Light Source and backlight modular |
| US7385653B2 (en) | 2004-05-28 | 2008-06-10 | Samsung Electro-Mechanics Co., Ltd. | LED package and backlight assembly for LCD comprising the same |
| CN100395629C (en) * | 2003-09-30 | 2008-06-18 | 鸿富锦精密工业（深圳）有限公司 | Area light source device and liquid crystal display |
| CN100401165C (en) * | 2004-11-24 | 2008-07-09 | 东芝松下显示技术有限公司 | Area light source device and liquid crystal display device including the same |
| CN100462815C (en) * | 2007-05-11 | 2009-02-18 | 友达光电股份有限公司 | Back light module unit |
| CN1912713B (en) * | 2005-05-23 | 2010-05-12 | 阿瓦戈科技Ecbuip(新加坡)股份有限公司 | Light source adapted for LCD back -lit displays |
| CN101566757B (en) * | 2008-04-23 | 2011-08-31 | 群康科技(深圳)有限公司 | Backlight module and liquid crystal display device |
| CN103244865A (en) * | 2012-02-14 | 2013-08-14 | 鑫成科技(成都)有限公司 | Backlight module and liquid crystal display device |
| CN104503139A (en) * | 2014-12-31 | 2015-04-08 | 深圳市华星光电技术有限公司 | Ultra-thin surface light source device |
| CN106772776A (en) * | 2017-02-16 | 2017-05-31 | 武汉华星光电技术有限公司 | Backlight module and its preparation method |
| WO2019000536A1 (en) * | 2017-06-30 | 2019-01-03 | 武汉华星光电技术有限公司 | Liquid crystal display and backlight module thereof |
| US10429574B2 (en) | 2017-06-30 | 2019-10-01 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display and backlight module thereof |
-
2002
- 2002-01-22 CN CNB021024766A patent/CN1183410C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383639C (en) * | 2003-09-06 | 2008-04-23 | 鸿富锦精密工业（深圳）有限公司 | Back-to-light module |
| CN100383637C (en) * | 2003-09-26 | 2008-04-23 | 鸿富锦精密工业（深圳）有限公司 | LED Light Source and backlight modular |
| CN100395629C (en) * | 2003-09-30 | 2008-06-18 | 鸿富锦精密工业（深圳）有限公司 | Area light source device and liquid crystal display |
| US7560745B2 (en) | 2004-05-28 | 2009-07-14 | Samsung Electro-Mechanics Co., Ltd. | LED package and backlight assembly for LCD comprising the same |
| US7385653B2 (en) | 2004-05-28 | 2008-06-10 | Samsung Electro-Mechanics Co., Ltd. | LED package and backlight assembly for LCD comprising the same |
| CN100405175C (en) * | 2004-05-28 | 2008-07-23 | 三星电机株式会社 | LED package and backlight assembly for LCD comprising the same |
| CN1313874C (en) * | 2004-07-27 | 2007-05-02 | 友达光电股份有限公司 | LED back light module |
| CN100401165C (en) * | 2004-11-24 | 2008-07-09 | 东芝松下显示技术有限公司 | Area light source device and liquid crystal display device including the same |
| CN1912713B (en) * | 2005-05-23 | 2010-05-12 | 阿瓦戈科技Ecbuip(新加坡)股份有限公司 | Light source adapted for LCD back -lit displays |
| CN100462815C (en) * | 2007-05-11 | 2009-02-18 | 友达光电股份有限公司 | Back light module unit |
| CN101566757B (en) * | 2008-04-23 | 2011-08-31 | 群康科技(深圳)有限公司 | Backlight module and liquid crystal display device |
| CN103244865A (en) * | 2012-02-14 | 2013-08-14 | 鑫成科技(成都)有限公司 | Backlight module and liquid crystal display device |
| CN104503139A (en) * | 2014-12-31 | 2015-04-08 | 深圳市华星光电技术有限公司 | Ultra-thin surface light source device |
| CN106772776A (en) * | 2017-02-16 | 2017-05-31 | 武汉华星光电技术有限公司 | Backlight module and its preparation method |
| WO2019000536A1 (en) * | 2017-06-30 | 2019-01-03 | 武汉华星光电技术有限公司 | Liquid crystal display and backlight module thereof |
| US10429574B2 (en) | 2017-06-30 | 2019-10-01 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display and backlight module thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1183410C (en) | 2005-01-05 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050105 Termination date: 20130122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |