CN2585273Y - LED illumination device - Google Patents
LED illumination device Download PDFInfo
- Publication number
- CN2585273Y CN2585273Y CN02251586U CN02251586U CN2585273Y CN 2585273 Y CN2585273 Y CN 2585273Y CN 02251586 U CN02251586 U CN 02251586U CN 02251586 U CN02251586 U CN 02251586U CN 2585273 Y CN2585273 Y CN 2585273Y
- Authority
- CN
- China
- Prior art keywords
- light
- emitting diode
- chip
- illuminating apparatus
- light emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005286 illumination Methods 0.000 title abstract description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000001579 optical reflectometry Methods 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 3
- -1 pottery Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims 1
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 16
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 230000005855 radiation Effects 0.000 abstract 3
- 239000003822 epoxy resin Substances 0.000 description 6
- 238000004020 luminiscence type Methods 0.000 description 6
- 229920000647 polyepoxide Polymers 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 229910002114 biscuit porcelain Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- PLXMOAALOJOTIY-FPTXNFDTSA-N Aesculin Natural products OC[C@@H]1[C@@H](O)[C@H](O)[C@@H](O)[C@H](O)[C@H]1Oc2cc3C=CC(=O)Oc3cc2O PLXMOAALOJOTIY-FPTXNFDTSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Images
Abstract
The utility model relates to an LED illumination device which comprises at least a high power LED, a heat radiation device, an optical reflector and a light conducting panel. Each high power LED is provided with at least one LED chip, the LED chips are arranged on a reflecting surface of a metal base with high heat conductivity, the metal base is provided with at least one circuit board used for the electric connection among the chips and an outer power supply. The chips are directly and thermally connected with a heat radiation device via the metal base, thermal resistance is little, the heat quantity generated from the LED can be efficiently radiated, so the LED can work in a high efficiency and lower temperature state. Therefore, the utility model can be made into an LED illumination device with large power and long service life, and the utility model is used for liquid crystal display back lighting, lighting lamps, automobile lamps, information display, etc. Compared with the prior art, the utility model has the advantages of good heat radiation, large power, high efficiency, long service life, etc.
Description
Technical field
The utility model relates to a kind of light emitting diode illuminating apparatus, be used for back illumination, decorative illumination lamp, illuminating lamp, auto lamp and the information demonstration etc. of liquid crystal display.
Background technology
The back illumination of liquid crystal display at present, particularly the back illumination of full-color liquid crystal display is all used cold-cathode fluorescence lamp, it has that volume is little, light efficiency is high, big, the photochromic advantage such as good of brightness high power, has been widely used in desk-top at present and laptop computer, LCD TV, digital camera etc.But there is following deficiency in the back illumination of cold extremely cloudy fluorescent light: at first it need about 30KC, hundreds of drives to several kilovolts high-frequency and high-voltage, the driving circuit complexity, and volume is big, the cost height; Secondly because luminescence efficiency of cathode fluorescent tube descends the only about 55mm of sparking electrode spacing of the cathode fluorescent tube used of 2.5 inches liquid crystal back illumination for example, the only about 10lm/W of its luminescence efficiency rapidly along with reducing of fluorescent tube length.Simultaneously, cathode fluorescent tube only to 4 π all directions emissions, to gather together light and inject the light guide plate of liquid crystal display back illumination to a direction to 4 π emission, the light guide plate that its most of light will just can enter back illumination through the repeatedly reflection of reverberator and luminous bisque, and the luminous reflectivity of reverberator and luminous bisque generally only about 0.7 to 0.8, after repeatedly reflecting, total light utilization efficiency is very low, generally only about 0.6, promptly Shi Ji light utilization efficiency is very low, therefore, electrical power consumed is very big, cause present digital camera, video camera, the serviceable life of the battery of the mobile phone of chromatic colour liquid crystal display etc. is very short, needs often to change battery, brings a lot of troubles to the user.
On the other hand, back light source in LED has been used to monochromatic and colored less demanding liquid crystal display back illumination at present, and the light emitting diode back illumination of large-area colour liquid crystal display, for example LCD TV, computing machine liquid crystal display is also among research and development; The light emitting diode of the back light source in LED of prior art all is installed on the circuit board or with epoxy resin and is pasted on the circuit board, and the thermal resistance between light emitting diode and the heat abstractor is very big.The large-area colour liquid crystal display needs a plurality of large-power light-emitting diodes, and a plurality of large-power light-emitting diodes can produce a large amount of heats rises the temperature of light-emitting diode chip for backlight unit significantly; Because the luminescence efficiency of light emitting diode rises and straight line decline with the temperature of its chip, backlight is can Yin Wendu too high and luminescence efficiency is obviously descended, thereby be difficult to make the back-illumination source of high-power high-efficiency, be used for LCD TV, the demonstration of computing machine liquid crystal display etc.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned existence, makes light source, driving circuit is simple, luminescence efficiency is high, power is big, the life-span is long, volume is little, cost is low light emitting diode illuminating apparatus and provide a kind of with light emitting diode.It can be used for substituting the back illumination that existing cathode fluorescent tube is done LCD TV, the demonstration of computing machine liquid crystal display etc., makes more power saving of liquid crystal display, battery longer service life, volume littler.LED light lamp of the present utility model also can be used for making LED source and is used for illumination, auto lamp and information demonstration etc. simultaneously.
The purpose of this utility model is achieved by the following technical solution: it includes at least one large-power light-emitting diodes, a heat abstractor, a reflective optical system and a light guide plate; Large-power light-emitting diodes has at least one light-emitting diode chip for backlight unit, described chip is installed on the reflecting surface of metab of a high heat conductance, there is at least one circuit board to be used for electrical ties between chip and the external power on the metab, at least one screw or screw hole or mechanical link device are arranged on the metab, and be connected with heat abstractor.Chip is connected with the heat abstractor direct heat through the metab of high heat conductance, thermal resistance is very little, the heat that light emitting diode produces can dispel the heat effectively, make light emitting diode work in high efficiency lower temperature, thereby can be made into high-power, high efficient LED back illumination and LED source.
Reflecting surface on the described metab is a high light reflectivity rate face, is plane or recessed curved surface.
Two sides of described at least one large-power light-emitting diodes have reflective optical system, and its inside surface is the reflecting surface of high light reflectivity rate, make the light emitting diode issued light can enter light guide plate effectively.
Between described at least one large-power light-emitting diodes, reflective optical system and the light guide plate light transmission medium can be arranged, to improve light utilization efficiency.
Described heat abstractor can be positioned at the side of light emitting diode illuminating apparatus, also can be positioned at the light guide plate back side or the back side and all around, is made by the metal of high heat conductance, for example copper, aluminium or alloy etc.Described heat abstractor also can have radiating fin, to improve radiating effect.
Described light-emitting diode chip for backlight unit can be identical or different illuminant colour, or red, blue, green three looks, described chip is parallel connection, series connection or parallel-series on demand.
Described reflective optical system is made by materials such as plastics, pottery, glass, metals, the high reflectance face of its inside surface, reflecting surface be shaped as plane, the conical surface, parabola or other curved surface.
Can irregular decorative pattern on the described reflecting surface, with the colour mixture effect of improving light and the uniformity coefficient of light.
LED light lamp of the present utility model also can be used for the direct back illumination of liquid crystal display and auto lamp, illumination and information demonstration etc.
LED light lamp of the present utility model is compared with existing LED light lamp, has advantages such as good heat dissipation, power is big, efficient is high, brightness is high, volume is little, the life-span is long, driving circuit is simple.
Description of drawings
Fig. 1 is the structural representation of the large-power light-emitting diodes of prior art.
Fig. 2 is the structural representation of an embodiment of light emitting diode illuminating apparatus of the present utility model.
Fig. 3 is the structural representation of another embodiment of light emitting diode illuminating apparatus of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is described in detail.Figure 1 shows that the structural representation of the large-power light-emitting diodes of prior art.1 is a high power LED chip among the figure, and described chip 1 is installed on the reflecting surface 3 of a metab 2, and the electrode of chip 14 and 5 is drawn through going between; Light transmission medium and lens 6 are arranged, plastic seat 7 on chip 1 and the reflecting surface 3.Described metab 2 usefulness epoxy resin 8 are fixed on the metal level 10 of circuit board 9, and circuit board 9 usefulness epoxy resin or heat-conducting glue 11 are connected with heat abstractor 12.Between the metab 2 of the large-power light-emitting diodes installation chip 1 of this class prior art and the heat abstractor 12 epoxy resin layer 8, circuit board 9 and heat-conducting glue 11 are arranged, and owing to do not have mechanical hook-up to fix between them, their thickness is generally thicker, entire thermal resistance is very big, and consistance is poor, and chip temperature significantly raises easily and luminescence efficiency is obviously descended; On the other hand, metab 2 usefulness epoxy resin 8 are fixing with circuit board 9, and it splits because of expanding with heat and contract with cold, impact, vibrate and using all the year round easily, make that thermal resistance obviously increases, chip temperature significantly rises and causes light emitting diode to burn.Thereby be difficult to make the light emitting diode and the lighting device of long-life high-power high-efficiency.
Figure 2 shows that the structural representation of an embodiment of light emitting diode illuminating apparatus of the present utility model.It includes 14, one reflective optical systems 15 of 13, one heat abstractors of at least one large-power light-emitting diodes and a light guide plate 16; Described each large-power light-emitting diodes 13 has at least one light-emitting diode chip for backlight unit 17, described chip 17 is installed on the reflecting surface 19 of metab 18 of a high heat conductance, have at least one circuit board 20 to be used between the chip on the metab 18 and chip and external power between electrical ties, the electrode of chip 17 through at least one the lead-in wire 21 and 22 or metab 18 draw; On chip 17 and the reflecting surface 19 light transmission medium 23 is arranged; At least one screw 24 or screw hole or mechanical link device are arranged on the metab 18, be used for being connected with heat abstractor 14.Chip 17 is connected with heat abstractor 14 direct heat through the metab 18 of high heat conductance, thermal resistance is very little, the heat that light-emitting diode chip for backlight unit 5 produces can dispel the heat effectively, make light-emitting diode chip for backlight unit work in high efficiency lower temperature, thereby can be made into high-power, high-level efficiency, long-term durability luminous diode back illumination and LED source.
Also heat-conducting glue can be arranged between the metab 18 of described high heat conductance and the heat abstractor 14, further to reduce thermal resistance.
The insulating heat-conductive bits also can be arranged between the metab 18 of described high heat conductance and the heat abstractor 14, make a plurality of large-power light-emitting diodes series, parallel or connection in series-parallel on demand
Reflecting surface 19 on the described metab 18 is a high light reflectivity rate face, is plane or recessed curved surface.
Two sides of described at least one large-power light-emitting diodes 13 have reflective optical system 15 to be positioned at two sides of at least one large-power light-emitting diodes 13, its inside surface is the reflecting surface 25 of high light reflectivity rate, makes light-emitting diode chip for backlight unit 17 issued lights can enter light guide plate 16 effectively.
Between described at least one large-power light-emitting diodes 13, reflective optical system 15 and the light guide plate 16 light transmission medium 27 can be arranged, reducing the light reflection loss of light on light emitting diode end face 26 and light guide plate 16 planes of incidence, thereby further improve the utilization factor of light.
Described heat abstractor 14 can be positioned at the side of light emitting diode illuminating apparatus, shown among Fig. 2 14, is made by copper, aluminium or alloy.Described heat abstractor also can have radiating fin 28, to improve radiating effect.
Described heat abstractor can be positioned at the side and the back side of light emitting diode illuminating apparatus, to increase area of dissipation, shown in 14a among Fig. 3.
Described reflective optical system 15, make by materials such as plastics, pottery, glass, metals, their inside surface is the reflecting surface 25 of high light reflectivity rate, and the shape of reflecting surface 25 can be plane, the conical surface, parabola or other curved surface, can assemble directive the place ahead to the light that chip 17 sends effectively.
Described at least one light-emitting diode chip for backlight unit 17 can be identical or different illuminant colour, for example be white entirely, described white comprises by blue light-emitting or ultraviolet chip and adds the luminous of light-converting material 29, shown among Fig. 3 29, light-converting material 29 can absorb blue light or the ultraviolet light that sends required look, for example gold-tinted or white light, thereby the light emitting diode of the coloured light that obtains sending out required.
Described at least one light-emitting diode chip for backlight unit 17 also can be at least one group of red, blue, green (R, B, G) three color chips, they can be simultaneously luminous to obtain the light of white light or other required look, also can be successively luminous repeatedly successively, black-and-white crystal is shown becomes polychrome or panchromatic liquid crystal display.At this moment, in order to obtain photochromic uniform demonstration, the reflecting surface 25 of reflective optical system 15 can irregular decorative pattern, and three coloured light are mixed.
Described at least one large-power light-emitting diodes 13 is series, parallel or connection in series-parallel on demand.At least one circuit board 20 in described each large-power light-emitting diodes is used between at least one light-emitting diode chip for backlight unit 17 and the electrical ties between chip and the external power, and at least one light-emitting diode chip for backlight unit 17 is series, parallel or connection in series-parallel on demand also.
Identical among the meaning of other digital representative and Fig. 2 among Fig. 3.
Claims (9)
1, a kind of light emitting diode illuminating apparatus, it includes at least one large-power light-emitting diodes, a heat abstractor; A reflective optical system and a light guide plate; It is characterized in that described large-power light-emitting diodes (13) includes the light-emitting diode chip for backlight unit (17) on the reflecting surface (19) of at least one metab that is installed in a high heat conductance (18), have at least one circuit board (20) to be used between the chip on the described metab (18) and chip and external power between electrical ties, the electrode of chip (17) is drawn through at least one lead-in wire (21) and (22) or metab (18); On chip (17) and the reflecting surface (19) light transmission medium (23) is arranged; At least one screw (24) or screw hole or mechanical link device are arranged on the metab (18), and be connected with heat abstractor (14).
2, light emitting diode illuminating apparatus as claimed in claim 1 is characterized in that described light-emitting diode chip for backlight unit (17) for identical or different illuminant colour, or red, blue, green three looks, described chip (17) is on demand parallel connection, series connection or parallel-series.
3, light emitting diode illuminating apparatus as claimed in claim 1, it is characterized in that described reflective optical system (15) is positioned at two sides of at least one large-power light-emitting diodes (13), made by plastics, pottery, glass, metal material, its inside surface is the high reflectance face (25) of plane, the conical surface, parabola or other curve form.
4, light emitting diode illuminating apparatus as claimed in claim 3 is characterized in that upward irregular decorative pattern of described reflecting surface (25).
5, light emitting diode illuminating apparatus as claimed in claim 1 is characterized in that the reflecting surface (19) on the described metab (18) is plane or recessed curved high light reflectivity rate face.
6, light emitting diode illuminating apparatus as claimed in claim 1 is characterized in that described heat abstractor (14) is positioned at the side of light emitting diode illuminating apparatus, and is made by copper, aluminium or alloy.
7, light emitting diode illuminating apparatus as claimed in claim 6 is characterized in that described heat abstractor (14a) is positioned at the side and the back side of light emitting diode illuminating apparatus.
8,, it is characterized in that being shaped on radiating fin (28) on the described heat abstractor (14,14a) as claim 6,7 described light emitting diode illuminating apparatus.
9, light emitting diode illuminating apparatus as claimed in claim 1 is characterized in that between described at least one large-power light-emitting diodes (13), reflective optical system (15) and the light guide plate (16) light transmission medium (27) being arranged.
Priority Applications (15)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02251586U CN2585273Y (en) | 2002-12-12 | 2002-12-12 | LED illumination device |
| EP02790249A EP1467414A4 (en) | 2001-12-29 | 2002-12-30 | A led and led lamp |
| US10/500,315 US7497596B2 (en) | 2001-12-29 | 2002-12-30 | LED and LED lamp |
| KR1020097019925A KR20090115810A (en) | 2001-12-29 | 2002-12-30 | A LED and LED lamp |
| KR1020097019923A KR100991827B1 (en) | 2001-12-29 | 2002-12-30 | A LED and LED lamp |
| AU2002367196A AU2002367196A1 (en) | 2001-12-29 | 2002-12-30 | A led and led lamp |
| JP2003557050A JP2005513815A (en) | 2001-12-29 | 2002-12-30 | Light emitting diode and light emitting diode lamp |
| PCT/CN2002/000930 WO2003056636A1 (en) | 2001-12-29 | 2002-12-30 | A led and led lamp |
| KR1020097019924A KR100991829B1 (en) | 2001-12-29 | 2002-12-30 | A LED and LED lamp |
| KR1020047010358A KR100991830B1 (en) | 2001-12-29 | 2002-12-30 | A LED and LED lamp |
| CNB028261275A CN100373638C (en) | 2001-12-29 | 2002-12-30 | LED and LED lamp thereof |
| US11/430,914 US7347589B2 (en) | 2001-12-29 | 2006-05-10 | LED and LED lamp |
| US12/265,911 US7736027B2 (en) | 2001-12-29 | 2008-11-06 | LED and LED lamp |
| JP2009241101A JP2010050473A (en) | 2001-12-29 | 2009-10-20 | Light emitting diode plane light source |
| JP2009241098A JP2010050472A (en) | 2001-12-29 | 2009-10-20 | Light emitting diode lamp, and light emitting diode traffic light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02251586U CN2585273Y (en) | 2002-12-12 | 2002-12-12 | LED illumination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2585273Y true CN2585273Y (en) | 2003-11-05 |
Family
ID=33721382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02251586U Expired - Lifetime CN2585273Y (en) | 2001-12-29 | 2002-12-12 | LED illumination device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2585273Y (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005103564A1 (en) * | 2004-04-19 | 2005-11-03 | Yaohao Wang | Led light source module packaged with metal |
| CN100365486C (en) * | 2005-09-23 | 2008-01-30 | 友达光电股份有限公司 | Backlight module |
| CN100381895C (en) * | 2004-07-05 | 2008-04-16 | Nec液晶技术株式会社 | Display device |
| CN100385313C (en) * | 2004-10-29 | 2008-04-30 | Lg.菲利浦Lcd株式会社 | Backlight unit and liquid crystal display device |
| CN100439999C (en) * | 2004-06-29 | 2008-12-03 | 京瓷株式会社 | Liquid crystal display device |
| CN100455879C (en) * | 2005-08-09 | 2009-01-28 | 苏州金美家具有限公司 | Lighting device |
| US7520637B2 (en) | 2004-10-29 | 2009-04-21 | Lg Display Co., Ltd. | Backlight unit and liquid crystal display device |
| US7545461B2 (en) | 2006-07-25 | 2009-06-09 | Kyocera Corporation | Liquid crystal display device |
| CN101566281A (en) * | 2009-04-29 | 2009-10-28 | 苏州世鼎电子有限公司 | LED fixture with heat-dissipating structure |
| CN101666468A (en) * | 2008-09-02 | 2010-03-10 | 京东方科技集团股份有限公司 | Backlight device |
| CN101251230B (en) * | 2007-12-20 | 2010-06-16 | 和谐光电科技（泉州）有限公司 | Modularized high-power LED road lamp as well as standardized LED light source module group unit thereof |
| CN101761811A (en) * | 2010-02-28 | 2010-06-30 | 东莞市万丰纳米材料有限公司 | LED (light emitting diode) floodlighting device and method for improving illuminance |
| CN101194205B (en) * | 2005-05-30 | 2010-10-27 | 京瓷株式会社 | Liquid crystal display device |
| CN101968207A (en) * | 2010-07-30 | 2011-02-09 | 南京中电熊猫液晶显示科技有限公司 | Directly-stuck LED backlight source back board |
| CN101556008B (en) * | 2007-03-09 | 2012-02-01 | 友达光电股份有限公司 | Assembly method of sidelight-type backlight module |
| CN101482244B (en) * | 2007-12-21 | 2012-04-25 | F.波尔希名誉工学博士公司 | Headlamp for vehicles |
| CN102889533A (en) * | 2011-07-20 | 2013-01-23 | 株式会社小糸制作所 | Vehicular lamp |
| CN101684908B (en) * | 2008-09-26 | 2015-01-14 | 三星电子株式会社 | Backlight unit and liquid crystal display having the same |
-
2002
- 2002-12-12 CN CN02251586U patent/CN2585273Y/en not_active Expired - Lifetime
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005103564A1 (en) * | 2004-04-19 | 2005-11-03 | Yaohao Wang | Led light source module packaged with metal |
| CN100439999C (en) * | 2004-06-29 | 2008-12-03 | 京瓷株式会社 | Liquid crystal display device |
| CN101430068B (en) * | 2004-06-29 | 2011-10-05 | 京瓷株式会社 | Liquid crystal display device |
| US8063868B2 (en) | 2004-07-05 | 2011-11-22 | Nec Corporation | Display device |
| CN100381895C (en) * | 2004-07-05 | 2008-04-16 | Nec液晶技术株式会社 | Display device |
| CN100385313C (en) * | 2004-10-29 | 2008-04-30 | Lg.菲利浦Lcd株式会社 | Backlight unit and liquid crystal display device |
| US7520637B2 (en) | 2004-10-29 | 2009-04-21 | Lg Display Co., Ltd. | Backlight unit and liquid crystal display device |
| CN101194205B (en) * | 2005-05-30 | 2010-10-27 | 京瓷株式会社 | Liquid crystal display device |
| US7903198B2 (en) | 2005-05-30 | 2011-03-08 | Kyocera Corporation | Liquid crystal display device |
| CN100455879C (en) * | 2005-08-09 | 2009-01-28 | 苏州金美家具有限公司 | Lighting device |
| CN100365486C (en) * | 2005-09-23 | 2008-01-30 | 友达光电股份有限公司 | Backlight module |
| US8203669B2 (en) | 2006-07-25 | 2012-06-19 | Kyocera Corporation | Liquid crystal display device |
| US7545461B2 (en) | 2006-07-25 | 2009-06-09 | Kyocera Corporation | Liquid crystal display device |
| CN101556008B (en) * | 2007-03-09 | 2012-02-01 | 友达光电股份有限公司 | Assembly method of sidelight-type backlight module |
| CN101251230B (en) * | 2007-12-20 | 2010-06-16 | 和谐光电科技（泉州）有限公司 | Modularized high-power LED road lamp as well as standardized LED light source module group unit thereof |
| CN101482244B (en) * | 2007-12-21 | 2012-04-25 | F.波尔希名誉工学博士公司 | Headlamp for vehicles |
| CN101666468A (en) * | 2008-09-02 | 2010-03-10 | 京东方科技集团股份有限公司 | Backlight device |
| CN101684908B (en) * | 2008-09-26 | 2015-01-14 | 三星电子株式会社 | Backlight unit and liquid crystal display having the same |
| CN101566281A (en) * | 2009-04-29 | 2009-10-28 | 苏州世鼎电子有限公司 | LED fixture with heat-dissipating structure |
| CN101761811A (en) * | 2010-02-28 | 2010-06-30 | 东莞市万丰纳米材料有限公司 | LED (light emitting diode) floodlighting device and method for improving illuminance |
| CN101968207A (en) * | 2010-07-30 | 2011-02-09 | 南京中电熊猫液晶显示科技有限公司 | Directly-stuck LED backlight source back board |
| CN102889533A (en) * | 2011-07-20 | 2013-01-23 | 株式会社小糸制作所 | Vehicular lamp |
| US8974101B2 (en) | 2011-07-20 | 2015-03-10 | Koito Manufacturing Co., Ltd. | Vehicular lamp |
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