CN201902933U - LED backlight module - Google Patents
LED backlight module Download PDFInfo
- Publication number
- CN201902933U CN201902933U CN2010206338057U CN201020633805U CN201902933U CN 201902933 U CN201902933 U CN 201902933U CN 2010206338057 U CN2010206338057 U CN 2010206338057U CN 201020633805 U CN201020633805 U CN 201020633805U CN 201902933 U CN201902933 U CN 201902933U
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- led
- fluorescent powder
- diffusion sheet
- yellow fluorescent
- lgp
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Abstract
The utility model provides an LED backlight module, which comprises a back plate, a light guide plate, a first diffuser, a blue LED and yellow fluorescent powder. The light guide plate is positioned above the back plate, the first diffuser is positioned above the light guide plate, the blue LED is positioned on one side of the back plate, and the yellow fluorescent powder is coated on the first diffuser. The LED backlight module has the advantages that since the yellow fluorescent powder is coated on the first diffuser, the blue LED is separated from the yellow fluorescent powder, and heat generated from the blue LED cannot be transmitted to the yellow fluorescent powder, efficiency of the fluorescent powder is increased greatly, and heat dissipation effect of the blue LED is improved; and mixed light is formed by the integral LED module structure so that the service life of the whole LED backlight module is prolonged.
Description
Technical field
The utility model relates to a kind of module backlight, relates in particular to a kind of LED-backlit module.
Background technology
Liquid crystal display has become the main flow display device, and the LCD TV development is advanced by leaps and bounds, and LCD also has large development.Because liquid crystal panel itself is not luminous, needs backlight to provide light source can reach display effect.The mainstream bulk backlight is the CCFL backlight at present, but the mechanical strength deficiency of the ultra-fine fluorescent tube of CCFL, problem is very outstanding in the large screen television complete machine, and three primary colors fluorescent powder cooperates color film color representation ability not good enough, contains the requirement that mercuryvapour is not inconsistent the cyclization ring yet in the CCFL fluorescent tube in addition.
Compare with the CCFL backlight, the LED-backlit source has lot of advantages, does not contain Toxic matter mercury, has that splendid colour gamut shows, good mechanical shock stability is arranged, the life-span longer than CCFL arranged, control circuit is simple, driving voltage is low, switch time of nanosecond etc.Feasible backlight is dynamically controlled of the instant shut-in characteristic of LED device becomes possibility, and the characteristics of LED device spot light also make regional luminance control become possibility.The backlight area dynamic control technology adopts the luminous intensity of dynamic image capture technique according to the dynamic control area of picture intensity profile led light source, and the picture signal that changes the corresponding liquid crystal panel in front cooperates with it, the formation high resolution image shows, its dynamic contrast can satisfy the demand that high dynamic-range image shows up to several ten thousand to one.Replaced C CFL backlight becomes main flow because the above-mentioned superiority of LED, development in future trend are the LED-backlit source.The mode of LED device generation white light is generally the blue-ray LED device and adds fluorescent material, the principle that LED produces white light is that a part of blue light is transformed into gold-tinted by fluorescent material, by mixing up blue light and gold-tinted obtains white light, but, fluorescent material have a problem to exist on the LED device owing to being coated on, that is exactly that the heat that sends of LED device makes the efficient of fluorescent material decline to a great extent, and influence the heat radiation of LED device, thereby the life-span of having reduced whole LED module backlight.
The utility model content
Be coated on the problem that causes the decrease in efficiency of fluorescent material on the LED device in order to solve fluorescent material of the prior art, the utility model provides a kind of LED-backlit module.
The utility model provides a kind of LED-backlit module, comprise backboard, LGP, first diffusion sheet, blue-ray LED and yellow fluorescent powder, described LGP is positioned at described backboard top, described first diffusion sheet is positioned at the LGP top, described blue-ray LED is positioned at described backboard one side, and described yellow fluorescent powder is coated the described first diffusion sheet place.
As further improvement of the utility model, scribble yellow fluorescent powder on the described LGP.
As further improvement of the utility model, this LED-backlit module also comprises reflector plate, second diffusion sheet, prismatic lens, described reflector plate is between described backboard and described LGP, and described prismatic lens is positioned at described first diffusion sheet top, and described second diffusion sheet is positioned at described prismatic lens top.
As further improvement of the utility model, this LED-backlit module also comprises the glue frame, and described glue frame is surrounded on the described backboard and described second diffusion sheet outside.
The beneficial effects of the utility model are: because described yellow fluorescent powder is coated the described first diffusion sheet place, make blue-ray LED and yellow fluorescent powder be separated, thereby the heat that blue-ray LED sends can not be passed to yellow fluorescent powder, make the efficient of fluorescent material significantly promote, and the radiating effect of raising blue-ray LED, form mixed light by the whole LED modular structure, thereby promoted the life-span of whole LED module backlight.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, the utility model discloses a kind of LED-backlit module, comprise backboard 2, LGP 5, first diffusion sheet 8, blue-ray LED 4 and yellow fluorescent powder, described LGP 5 is positioned at described backboard 2 tops, described first diffusion sheet 8 is positioned at LGP 5 tops, described blue-ray LED 4 is positioned at described backboard 2 one sides, and described yellow fluorescent powder is coated described first diffusion sheet 8 places.
Scribble yellow fluorescent powder on the described LGP 5.
This LED-backlit module also comprises reflector plate 3, second diffusion sheet 6, prismatic lens 7, described reflector plate 3 is between described backboard 2 and described LGP 5, described prismatic lens 7 is positioned at described first diffusion sheet 8 tops, and described second diffusion sheet 6 is positioned at described prismatic lens 7 tops.
This LED-backlit module also comprises glue frame 1, and described glue frame 1 is surrounded on the described backboard 2 and described second diffusion sheet 6 outsides.
Because described yellow fluorescent powder is coated described first diffusion sheet 8 places, make blue-ray LED 4 and yellow fluorescent powder be separated, thereby the heat that blue-ray LED 4 sends can not be passed to yellow fluorescent powder, make the efficient of fluorescent material significantly promote, and the radiating effect of raising blue-ray LED 4, form mixed light by the whole LED modular structure, thereby promoted the life-span of whole LED module backlight.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (4)
1. LED-backlit module, it is characterized in that: comprise backboard, LGP, first diffusion sheet, blue-ray LED and yellow fluorescent powder, described LGP is positioned at described backboard top, described first diffusion sheet is positioned at the LGP top, described blue-ray LED is positioned at described backboard one side, and described yellow fluorescent powder is coated the described first diffusion sheet place.
2. LED-backlit module according to claim 1 is characterized in that: scribble yellow fluorescent powder on the described LGP.
3. LED-backlit module according to claim 1 and 2, it is characterized in that: this LED-backlit module also comprises reflector plate, second diffusion sheet, prismatic lens, described reflector plate is between described backboard and described LGP, described prismatic lens is positioned at described first diffusion sheet top, and described second diffusion sheet is positioned at described prismatic lens top.
4. LED-backlit module according to claim 3 is characterized in that: this LED-backlit module also comprises the glue frame, and described glue frame is surrounded on the described backboard and described second diffusion sheet outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206338057U CN201902933U (en) | 2010-11-30 | 2010-11-30 | LED backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206338057U CN201902933U (en) | 2010-11-30 | 2010-11-30 | LED backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201902933U true CN201902933U (en) | 2011-07-20 |
Family
ID=44273526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206338057U Expired - Fee Related CN201902933U (en) | 2010-11-30 | 2010-11-30 | LED backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201902933U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606962A (en) * | 2012-03-31 | 2012-07-25 | 福州华映视讯有限公司 | Backlight module |
| CN103115282A (en) * | 2011-11-16 | 2013-05-22 | 苏州通亮照明科技有限公司 | Backlight module and diffusion component applied to backlight module |
| CN103292192A (en) * | 2013-06-19 | 2013-09-11 | 苏州信亚科技有限公司 | High-efficiency LED lamp |
| WO2013152519A1 (en) * | 2012-04-11 | 2013-10-17 | 深圳市华星光电技术有限公司 | Manufacturing method for led light bar, led light bar and backlight module |
| CN105042427A (en) * | 2015-08-13 | 2015-11-11 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN110632792A (en) * | 2019-08-28 | 2019-12-31 | 武汉华星光电技术有限公司 | Backlight module and vehicle-mounted display device |
| US11016339B2 (en) | 2019-08-28 | 2021-05-25 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Backlight module and in vehicle display device |
-
2010
- 2010-11-30 CN CN2010206338057U patent/CN201902933U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115282A (en) * | 2011-11-16 | 2013-05-22 | 苏州通亮照明科技有限公司 | Backlight module and diffusion component applied to backlight module |
| CN102606962A (en) * | 2012-03-31 | 2012-07-25 | 福州华映视讯有限公司 | Backlight module |
| WO2013152519A1 (en) * | 2012-04-11 | 2013-10-17 | 深圳市华星光电技术有限公司 | Manufacturing method for led light bar, led light bar and backlight module |
| CN103292192A (en) * | 2013-06-19 | 2013-09-11 | 苏州信亚科技有限公司 | High-efficiency LED lamp |
| CN105042427A (en) * | 2015-08-13 | 2015-11-11 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN110632792A (en) * | 2019-08-28 | 2019-12-31 | 武汉华星光电技术有限公司 | Backlight module and vehicle-mounted display device |
| US11016339B2 (en) | 2019-08-28 | 2021-05-25 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Backlight module and in vehicle display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN ZHONGDIAN XIONGMAO STRONG ELECTRONICS CO. Free format text: FORMER OWNER: SHENZHEN ZHONGDIAN XIONGMAO ZHONGLIAN SHUYUAN ELECTRONIC CO., LTD. Effective date: 20131218 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN ZHONGDIAN XIONGMAO ZHONGLIAN SHUYUAN ELEC Free format text: FORMER NAME: SHENZHEN DATA-POWER ELECTRONICS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Guangming Street, Guangming District, Guangdong, Shenzhen Province, No. 3 factory building Patentee after: Shenzhen panda data Power Electronics Co.,Ltd. Address before: 518000 Guangming Street, Guangming District, Guangdong, Shenzhen Province, No. 3 factory building Patentee before: SHENZHEN DATA-POWER ELECTRONICS Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131218 Address after: 518000, Shenzhen 1, Guangdong province Baoan District Shiyan Street Community Garden community, No. 35, pit end factory building (1-4 stories) Patentee after: SHENZHEN CEC PANDA STRONG ELECTRONICS CO.,LTD. Address before: 518000 Guangming Street, Guangming District, Guangdong, Shenzhen Province, No. 3 factory building Patentee before: Shenzhen panda data Power Electronics Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20141130 |
|
| EXPY | Termination of patent right or utility model |