CN201954400U - LED mixed light backlight source - Google Patents
LED mixed light backlight source Download PDFInfo
- Publication number
- CN201954400U CN201954400U CN2011200204373U CN201120020437U CN201954400U CN 201954400 U CN201954400 U CN 201954400U CN 2011200204373 U CN2011200204373 U CN 2011200204373U CN 201120020437 U CN201120020437 U CN 201120020437U CN 201954400 U CN201954400 U CN 201954400U
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- led
- mixed light
- lgp
- light
- light backlight
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Abstract
The utility model relates to an LED mixed light backlight source which comprises a display area positioned a front side and a rubber frame as well as a sealing plate arranged at the rear of the display area, and is characterized in that a light guide plate is arranged between the rubber frame and the sealing plate, a PCB (printed circuit board) parallel to the light guide plate is arranged beside the light guide plate, the PCB is provided with at least an LED projecting forwards, and the front side of the LED is provided with a reflecting plate for reflecting the light into the light guide plate. The backlight source has simple structure and can meet the requirement of uniformly mixing light at the incident side of the LED, so that the production cost is lowered.
Description
Technical field
The utility model relates to a kind of LED-backlit source, particularly a kind of LED mixed light backlight with even mixed light effect.
Background technology
Display (TV or Monitor) must have a backlight (BLU) that the brightness of system is provided, when backlight (BLU) uses side entering type LED lamp source (light bar), its LED8 light-emitting area is by the direct light inlet in side of LGP 9 (LGP), as shown in Figure 1.The light inlet of LED need have the design of mixed light, the positive apparent time of screen wishes to see uniform surface light source, LED and the bad problem of LED mixed light when the spacing of LED becomes big, will take place to the distance of viewing area in the spacing of general needs consideration LED of this mixed light design and LED and LED emission side.
Summary of the invention
The purpose of this utility model is to provide a kind of LED mixed light backlight, and this backlight is not only simple in structure, and can meet the even mixed light demand of LED light inlet side, reduces production costs.
The technical solution of the utility model is: a kind of LED mixed light backlight, comprise the viewing area that is positioned at the front side and glue frame and the shrouding of being located at the rear, viewing area, it is characterized in that: be provided with a LGP between described glue frame and the shrouding, described LGP side is provided with a pcb board that be arranged in parallel with LGP, described pcb board is provided with at least one LED that throws forward, described LED front side is provided with reflecting plate, in order to reflect light in the LGP.
Described reflecting plate is the glue frame that is provided with the plane of reflection.
Described reflecting plate is a metallic reflector.
Post the nano thin-film or the mirror surface structure diaphragm that are used to increase diffusion on the described plane of reflection.
Post the diffusion barrier or the optical mirror plane reflectance coating that are used to increase diffusion on the described reflector.
Advantage of the present utility model is: strengthened the spacing between LED and the LED, and can guarantee to meet the even mixed light demand of LED light inlet side, can effectively reduce LED number, thereby reach the purpose that reduces production costs; High-capacity LED is used in collocation, replaces existing low-power LED, can satisfy the optical brightness specification of backlight fully.
Description of drawings
Fig. 1 is the structural representation of existing backlight.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is a light-mixing structure schematic diagram of the present utility model.
The specific embodiment
A kind of LED mixed light backlight, comprise viewing area 1 that is positioned at the front side and glue frame 2 and the shrouding 3 of being located at the rear, viewing area, it is characterized in that: be provided with a LGP 4 between described glue frame and the shrouding, described LGP side is provided with a pcb board 5 that be arranged in parallel with LGP, described pcb board is provided with at least one LED6 that throws forward, described LED front side is provided with reflecting plate 7, in order to reflect light in the LGP.
In order to inject the purpose of LGP after reaching light and being reflected again, described reflecting plate is the glue frame that is provided with the plane of reflection.
Described reflecting plate is a metallic reflector, uses reflector also can reach the purpose of reflection ray.。
In order to increase reflecting effect, post the nano thin-film or the mirror surface structure diaphragm that are used to increase diffusion on the described plane of reflection.
In order to increase reflecting effect, post the diffusion barrier or the optical mirror plane reflectance coating that are used to increase diffusion on the described reflector.
Operation principle of the present utility model is as follows: changed existing dependence LED and adjacent LED and carried out the design of mixed light, change into by after the reflecting surface reflection light being incident to LGP, by LGP ray cast is gone into the viewing area, on reflecting surface, increase the light-mixing structure design, as stick on nanometer film, specular reflection film, diffusion barrier etc., thereby reach the purpose of improving the mixed light effect, direct design reflectivity face on the glue frame in the present embodiment, further simplified structure also, reduce production costs, this light inlet mode can make the LED mixed light more even, even increase the spacing between the LED, also can meet the requirements of the mixed light effect, can effectively reduce the use number of LED, reach the purpose that reduces cost.
The above only is preferred embodiment of the present utility model, and all equalizations of being done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. LED mixed light backlight, comprise the viewing area that is positioned at the front side and glue frame and the shrouding of being located at the rear, viewing area, it is characterized in that: be provided with a LGP between described glue frame and the shrouding, described LGP side is provided with a pcb board that be arranged in parallel with LGP, described pcb board is provided with at least one LED that throws forward, described LED front side is provided with reflecting plate, in order to reflect light in the LGP.
2. a kind of LED mixed light backlight according to claim 1 is characterized in that: described reflecting plate is the glue frame that is provided with the plane of reflection.
3. a kind of LED mixed light backlight according to claim 1, it is characterized in that: described reflecting plate is a metallic reflector.
4. a kind of LED mixed light backlight according to claim 3 is characterized in that: post the nano thin-film or the mirror surface structure diaphragm that are used to increase diffusion on the described plane of reflection.
5. a kind of LED mixed light backlight according to claim 4 is characterized in that: post the diffusion barrier or the optical mirror plane reflectance coating that are used to increase diffusion on the described reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200204373U CN201954400U (en) | 2011-01-22 | 2011-01-22 | LED mixed light backlight source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200204373U CN201954400U (en) | 2011-01-22 | 2011-01-22 | LED mixed light backlight source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201954400U true CN201954400U (en) | 2011-08-31 |
Family
ID=44498510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200204373U Expired - Fee Related CN201954400U (en) | 2011-01-22 | 2011-01-22 | LED mixed light backlight source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201954400U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537775A (en) * | 2011-10-25 | 2012-07-04 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN102621744A (en) * | 2012-04-16 | 2012-08-01 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| CN102767762A (en) * | 2012-07-27 | 2012-11-07 | 深圳市华星光电技术有限公司 | Backlight module |
| WO2013075368A1 (en) * | 2011-11-23 | 2013-05-30 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| WO2013143225A1 (en) * | 2012-03-27 | 2013-10-03 | 深圳市华星光电技术有限公司 | Edge-lighting type backlight module and liquid crystal display thereof |
| US9007547B2 (en) | 2011-11-23 | 2015-04-14 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and LCD device |
| JP2017168228A (en) * | 2016-03-14 | 2017-09-21 | オムロン株式会社 | Surface light source device, display device, electronic apparatus, and light source |
| JP2019028217A (en) * | 2017-07-28 | 2019-02-21 | セイコーエプソン株式会社 | Display, electronic apparatus, and wearable apparatus |
-
2011
- 2011-01-22 CN CN2011200204373U patent/CN201954400U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537775A (en) * | 2011-10-25 | 2012-07-04 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| WO2013075368A1 (en) * | 2011-11-23 | 2013-05-30 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| US9007547B2 (en) | 2011-11-23 | 2015-04-14 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and LCD device |
| WO2013143225A1 (en) * | 2012-03-27 | 2013-10-03 | 深圳市华星光电技术有限公司 | Edge-lighting type backlight module and liquid crystal display thereof |
| CN102621744A (en) * | 2012-04-16 | 2012-08-01 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| WO2013155676A1 (en) * | 2012-04-16 | 2013-10-24 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| CN102767762A (en) * | 2012-07-27 | 2012-11-07 | 深圳市华星光电技术有限公司 | Backlight module |
| JP2017168228A (en) * | 2016-03-14 | 2017-09-21 | オムロン株式会社 | Surface light source device, display device, electronic apparatus, and light source |
| JP2019028217A (en) * | 2017-07-28 | 2019-02-21 | セイコーエプソン株式会社 | Display, electronic apparatus, and wearable apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110831 Termination date: 20150122 |
|
| EXPY | Termination of patent right or utility model |