CN201502963U - LED backlight module with light guide plate - Google Patents
LED backlight module with light guide plate Download PDFInfo
- Publication number
- CN201502963U CN201502963U CN2009203098858U CN200920309885U CN201502963U CN 201502963 U CN201502963 U CN 201502963U CN 2009203098858 U CN2009203098858 U CN 2009203098858U CN 200920309885 U CN200920309885 U CN 200920309885U CN 201502963 U CN201502963 U CN 201502963U
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- Prior art keywords
- led
- light
- lgp
- led lamp
- exiting surface
- Prior art date
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- Expired - Fee Related
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 10
- 238000009792 diffusion process Methods 0.000 claims abstract description 8
- 210000002858 crystal cell Anatomy 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000005142 aphototropism Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
Images
Abstract
The utility model provides an LED (light-emitting diode) backlight module which comprises a light guide plate. The light guide plate comprises a light emitting surface and a light incoming surface opposite to the light emitting surface; a plurality of grooves are formed on the light incoming surface; and a LED lamp cluster is arranged in the grooves. The LED backlight module further comprises a reflecting film, a metallic back plate, a diffusion sheet, a prism sheet, a brightness enhancement film and a liquid crystal cell, wherein the reflecting film and the metallic back plate are arranged on one side of the light incoming surface of the guide light plate in turn; and the diffusion sheet, the prism sheet, the brightness enhancement film and the liquid crystal cell are arranged on one side of the light emitting surface of the light guide plate in turn. The LED backlight module with the light guide plate changes the point light source of the LED lamp cluster into an area light source through the light guide plate, the conversion from the point light source to the area light source is not limited by the height and the distance when the area light source is positioned at the bottom part, and the area light source can be made to be very thin, therefore, a side backlight is combined with a direct backlight to form a bottom backlight module of large size. When the LED backlight module is applicable to a liquid crystal display (LCD) panel of large size, the LCD panel can be made to be very thin.
Description
Technical field
The utility model relates to a kind of module backlight, in particular for the large scale LED-backlit module of LCD TV.
Background technology
Along with development of science and technology, the liquid crystal reality technology is more and more ripe, and TV is also from using traditional kinescope liquid crystal display till now.LCDs is passive luminous reality screen.Liquid crystal itself is not luminous, so LCDs needs module backlight that light source is provided, divides from the classification of light source, can be divided into CCFL module backlight, LED-backlit module etc.The LED-backlit module is easy to carry out reasons such as subregion control because its color reducibility is good, becomes the main flow backlight of LCDs in the future.The LED-backlit module can be divided into side view LED module backlight and direct-light type LED backlight module again according to the difference of LED position, and in general side view LED module backlight is applied to small-medium size, and the direct-light type LED backlight module is used for large scale.LCD TV is lightening more and more to have become the market mainstream, so the lightening of liquid crystal display also is inevitable.
Large scale generally adopts down straight aphototropism mode set, can't accomplish ultra-thin, because the direct-light type LED backlight module because LED etc. in the bottom, for the uniformity of brightness, generally need stay certain clearance, in general, the thickness limit of direct-light type LED backlight is 20mm, distance shortens again, by the design of blooming piece, all the lamp shadow of LED lamp can not be eliminated in any case.So the minimal thickness of general direct-light type LED backlight module is approximately 20mm.And side view LED is backlight, and when being used for large scale LED TV, because area is bigger, the four side distance center is far away, no matter how LGP designs the problem that the brightness uniformity difference can take place usually, center brightness also can be lower simultaneously.
The utility model content
The utility model is in order to overcome above-mentioned the deficiencies in the prior art, and the utility model provides a kind of ultra-thin LED LGP and module backlight that can be applied to Large-size LCD Screen.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of LED LGP, it comprise an exiting surface and with this exiting surface opposed bottom surface, described incidence surface is provided with a plurality of grooves, is provided with LED lamp group in the described groove.
The scheme that the utility model solves further technical problem is: described LED lamp group comprises a plurality of LED lamps.
The scheme that the utility model solves further technical problem is: described LED lamp is a white LED lamp.
The scheme that the utility model solves further technical problem is: described LED lamp is by welding fixedly on the aluminum base PCB plate.
The scheme that the utility model solves further technical problem is: the exiting surface of this LED lamp group is vertical with this exiting surface.
The scheme that the utility model solves further technical problem is: the surface of described bottom surface is provided with a plurality of sites.
The scheme that the utility model solves further technical problem is: this site evenly is provided with or is less in the local site of distance L ED lamp group, arranges thinlyyer, and the place of distance L ED lamp group is bigger, arranges closeer.
The scheme that the utility model solves further technical problem is: described exiting surface setting has the micro-structural of diffusion.
The scheme that the utility model solves further technical problem is: a kind of LED-backlit module, it comprises a LGP, this LGP comprise an exiting surface and with this exiting surface opposed bottom surface, described incidence surface is provided with a plurality of grooves, is provided with LED lamp group in the described groove; This LED-backlit module further comprises reflectance coating and the metal backing that is successively set on this bottom surface of light guide plate one side; Be successively set on the diffusion sheet of this LGP exiting surface one side, prismatic lens, brightness enhancement film and liquid crystal CELL.
Compared to prior art, LED LGP of the present utility model and module backlight become LED lamp group into area source by LGP with spot light, area source is in the bottom, be not subjected to the influence of height distance, can accomplish very thinly, edge-lit-backlights source and direct-light-type backlight can be combined like this, make large scale bottom side light module backlight, when being applied in Large-size LCD Screen, Large-size LCD Screen can be accomplished very thin.
Description of drawings
Fig. 1 is the structural representation of LED LGP of the present utility model.
Fig. 2 is the structural representation of LED-backlit module of the present utility model.
The specific embodiment
Following 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.
As shown in Figure 1, the utility model provides a kind of LED LGP, it comprise an exiting surface 111 and with these exiting surface 111 opposed bottom surface 112.Described bottom surface 112 is provided with a plurality of grooves, is provided with LED lamp group in the described groove.
Described LED lamp group comprises a plurality of LED lamps.Described LED lamp is a white LED lamp, and fixedly on the aluminum base PCB plate, after fixing, the exiting surface of this LED lamp group is vertical with this exiting surface 111 by welding for it.
This LED lamp is the paster encapsulation.
The surface of described bottom surface 112 is provided with a plurality of sites, and this site evenly is provided with or is less in the local site of distance L ED lamp group, arranges thinlyyer, and the place of distance L ED lamp group is bigger, arranges closeer.
Described exiting surface 111 is provided with the micro-structural with diffusion.
As shown in Figure 2, the utility model provides a kind of LED-backlit module, it comprises above-mentioned LGP, be successively set on the reflectance coating 120 and the metal backing of this LGP incidence surface one side, be successively set on the diffusion sheet 130 of this LGP exiting surface one side, prismatic lens 140, brightness enhancement film 150 and liquid crystal CELL160 are arranged on the housing in this LGP outside.
LED LGP of the present utility model and module backlight become LED lamp group into area source by LGP with spot light, area source is in the bottom, be not subjected to the influence of height distance, can accomplish very thin, edge-lit-backlights source and direct-light-type backlight can be combined like this, make large scale bottom side light module backlight, when being applied in Large-size LCD Screen, Large-size LCD Screen can be accomplished very thin.
Claims (9)
1. LED LGP is characterized in that: it comprise an exiting surface and with this exiting surface opposed bottom surface, described bottom surface is provided with a plurality of grooves, is provided with LED lamp group in the described groove.
2. LED LGP according to claim 1 is characterized in that: described LED lamp group comprises a plurality of LED lamps.
3. LED LGP according to claim 2 is characterized in that: described LED lamp is a white LED lamp.
4. LED LGP according to claim 2 is characterized in that: described LED lamp is by welding fixedly on the aluminum base PCB plate.
5. LED LGP according to claim 4 is characterized in that: the exiting surface of this LED lamp group is vertical with this exiting surface.
6. LED LGP according to claim 1 is characterized in that: the surface of described bottom surface is provided with a plurality of sites.
7. LED LGP according to claim 1 is characterized in that: this site evenly is provided with or is less in the local site of distance L ED lamp group, arranges thinlyyer, and the place of distance L ED lamp group is bigger, arranges closeer.
8. LED LGP according to claim 1 is characterized in that: described exiting surface setting has the micro-structural of diffusion.
9. LED-backlit module, it is characterized in that: it comprises a LGP, this LGP comprise an exiting surface and with this exiting surface opposed bottom surface, described bottom surface is provided with a plurality of grooves, is provided with LED lamp group in the described groove;
Be successively set on the reflectance coating and the metal backing of this bottom surface of light guide plate one side;
Be successively set on the diffusion sheet of this LGP exiting surface one side, prismatic lens, brightness enhancement film and liquid crystal CELL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203098858U CN201502963U (en) | 2009-09-08 | 2009-09-08 | LED backlight module with light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203098858U CN201502963U (en) | 2009-09-08 | 2009-09-08 | LED backlight module with light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201502963U true CN201502963U (en) | 2010-06-09 |
Family
ID=42453896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203098858U Expired - Fee Related CN201502963U (en) | 2009-09-08 | 2009-09-08 | LED backlight module with light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201502963U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893190A (en) * | 2010-07-14 | 2010-11-24 | 深圳市华星光电技术有限公司 | Local dimming backlight module and liquid crystal display applying same |
| WO2012012992A1 (en) * | 2010-07-28 | 2012-02-02 | 深圳市华星光电技术有限公司 | Multilayer light guiding board and liquid crystal display module |
| WO2013143158A1 (en) * | 2012-03-30 | 2013-10-03 | 深圳市华星光电技术有限公司 | Light-emitting diode light strip structure |
| TWI507787B (en) * | 2013-09-27 | 2015-11-11 | Ye Xin Technology Consulting Co Ltd | Display device, joint display and backlight module |
| TWI578291B (en) * | 2016-07-26 | 2017-04-11 | 揚昇照明股份有限公司 | Display apparatus |
| CN106773315A (en) * | 2017-01-13 | 2017-05-31 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| US10012857B2 (en) | 2015-11-06 | 2018-07-03 | Champ Vision Display Inc. | Display apparatus including a prism module |
| US10067369B2 (en) | 2015-11-06 | 2018-09-04 | Champ Vision Display Inc. | Display apparatus with a prism module including a corner prism set disposed on a corner region |
| US10504451B2 (en) | 2016-08-08 | 2019-12-10 | Champ Vision Display Inc. | Display apparatus with multi screens and display signal control method thereof |
| US10809959B2 (en) | 2017-10-25 | 2020-10-20 | Champ Vision Display Inc. | Multi-screen display device |
| US20230305219A1 (en) * | 2017-06-04 | 2023-09-28 | Sergiy Vasylyev | Multi-waveguide illumination panel |
-
2009
- 2009-09-08 CN CN2009203098858U patent/CN201502963U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893190A (en) * | 2010-07-14 | 2010-11-24 | 深圳市华星光电技术有限公司 | Local dimming backlight module and liquid crystal display applying same |
| CN101893190B (en) * | 2010-07-14 | 2013-04-24 | 深圳市华星光电技术有限公司 | Local dimming backlight module and liquid crystal display applying same |
| US8625051B2 (en) | 2010-07-14 | 2014-01-07 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display and backlight module for the same |
| WO2012012992A1 (en) * | 2010-07-28 | 2012-02-02 | 深圳市华星光电技术有限公司 | Multilayer light guiding board and liquid crystal display module |
| US8593587B2 (en) | 2010-07-28 | 2013-11-26 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Multi-level light guide plate and liquid crystal display module |
| WO2013143158A1 (en) * | 2012-03-30 | 2013-10-03 | 深圳市华星光电技术有限公司 | Light-emitting diode light strip structure |
| TWI507787B (en) * | 2013-09-27 | 2015-11-11 | Ye Xin Technology Consulting Co Ltd | Display device, joint display and backlight module |
| US10012857B2 (en) | 2015-11-06 | 2018-07-03 | Champ Vision Display Inc. | Display apparatus including a prism module |
| US10067369B2 (en) | 2015-11-06 | 2018-09-04 | Champ Vision Display Inc. | Display apparatus with a prism module including a corner prism set disposed on a corner region |
| TWI578291B (en) * | 2016-07-26 | 2017-04-11 | 揚昇照明股份有限公司 | Display apparatus |
| US10504451B2 (en) | 2016-08-08 | 2019-12-10 | Champ Vision Display Inc. | Display apparatus with multi screens and display signal control method thereof |
| CN106773315A (en) * | 2017-01-13 | 2017-05-31 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| US20230305219A1 (en) * | 2017-06-04 | 2023-09-28 | Sergiy Vasylyev | Multi-waveguide illumination panel |
| US10809959B2 (en) | 2017-10-25 | 2020-10-20 | Champ Vision Display Inc. | Multi-screen 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: FLAT PANEL DISPLAY TECHNOLOGY CENTER, NANHAI, FOSH |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518053 OVERSEAS CHINESE CITY, NANSHAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 518053 NO.9008, SHENNAN AVENUE, OVERSEAS CHINESE CITY, NANSHAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101213 Address after: 518053 Nanshan District, Guangdong overseas Chinese town Shennan Road, No. 9008, No. Co-patentee after: Foshan Nanhai Panel Display Technology Center Patentee after: Konka Group Co., Ltd. Address before: 518053 Nanshan District overseas Chinese town, Shenzhen, Guangdong Patentee before: Konka Group Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: FOSHAN NANHAI FLAT PANEL DISPLAY TECHNOLOGY CENTER |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110811 Address after: 518053 Nanshan District, Guangdong overseas Chinese town Shennan Road, No. 9008, No. Co-patentee after: Foshan Nanhai Panel Display Technology Center Patentee after: Konka Group Co., Ltd. Address before: 518053 Nanshan District, Guangdong overseas Chinese town Shennan Road, No. 9008, No. Patentee before: Konka Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20120908 |