CN203478016U - Side-light type LED backlight source with adjustable color coordinates - Google Patents
Side-light type LED backlight source with adjustable color coordinates Download PDFInfo
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- CN203478016U CN203478016U CN201320550922.0U CN201320550922U CN203478016U CN 203478016 U CN203478016 U CN 203478016U CN 201320550922 U CN201320550922 U CN 201320550922U CN 203478016 U CN203478016 U CN 203478016U
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Abstract
The utility model discloses a side-light type LED backlight source with adjustable color coordinates. The side-light type LED backlight source comprises a light guide plate (12), LED lamp strips (11), a reflective film (13) and an optical module (14); the reflective film and the optical module are respectively attached to the top and the bottom of the light guide plate; at least one side edge of the light guide plate is provide with the LED lamp strips, and LED lamps on the LED lamp strips are perpendicular to the corresponding side surfaces of the side edges of the light guide plate; the LED lamps comprise white, blue and red LED surface mount devices; grooves are formed in the side edges of the light guide plate and correspond to the blue LED surface mount devices and the white LED surface mount devices; the contour line of the cross section of each groove is an arc, and extending directions of the grooves are perpendicular to emergent surfaces of the light guide plate. The white, blue and red LED surface mount devices are sequentially arrayed according to a sequence of white, blue, white, white, red and white. The side-light type LED backlight source with the adjustable color coordinates has the advantages of novel structure, good backlight effect and a color coordinate adjusting function.
Description
Technical field
The utility model relates to the adjustable side light type LED backlight source of a kind of chromaticity coordinates, belongs to field of display.
Background technology
LED liquid crystal indicator has that power consumption is little, brightness is high, reliability high.Most liquid crystal indicator all adopts backlight, and the function of backlight is to provide to liquid crystal panel the area source that brightness is abundant, even, have particular color.Liquid crystal panel itself is inconsistent for R, G, the three-channel optical filtering ratio of B, thereby causes area source color after liquid crystal panel that backlight produces to change, and therefore regulates the chromaticity coordinates of backlight to become the hot issue of current concern.
A kind of backlight of the prior art, the end light formula backlight of employing RGB tri-color LED colour mixtures, it comprises reflectance coating, blooming group, RGB three-color LED light source.The light that RGB three-color light source sends is directly injected from the blooming group plane of incidence after colour mixture, and penetrates from exit facet, and its shortcoming is that LED usage quantity is many, power consumption is high, caloric value is large and has red limit phenomenon.
Therefore, be necessary to design the adjustable side light type LED backlight source of a kind of chromaticity coordinates.
Utility model content
Technical problem to be solved in the utility model is to provide the adjustable side light type LED backlight source of a kind of chromaticity coordinates, the side light type LED backlight source novel structure that this chromaticity coordinates is adjustable, and backlight effect is good, has the adjustable function of chromaticity coordinates.
The technical solution of utility model is as follows:
The side light type LED backlight source that chromaticity coordinates is adjustable, comprises LGP (12), LED lamp bar (11), reflectance coating (13) and optics module (14);
Reflectance coating and optical mode group are attached to respectively end face and the bottom surface of LGP; LGP is square plate; LED lamp bar is arranged at least one side edge of LGP, and the LED lamp on LED lamp bar is all perpendicular to the corresponding side of this side of LGP; The employing of LED lamp is white, blue, the LED paster of red three kinds of colors; Position relative with White LED paster with blue led paster on this side is equipped with groove; The outline line of groove cross section is circular arc, and the bearing of trend of groove is perpendicular to the exiting surface (being end face) of LGP.
LED lamp bar is arranged on 2 relative side edge of LGP.
In vain, LED pasters blue, red three kinds of colors are arranged in order according to white, blue, white, white, red, white order.
The width of groove equals LED paster width.
The central angle of described concave structure is 58 °.
Beneficial effect:
The of the present utility model kind of side light type LED backlight source that chromaticity coordinates is adjustable, the LED white light source of usining sends white light as main light source and injects from LGP incidence surface, light blue, red color light source sends respectively indigo plant, red color as color modulating light source is injected from the groove generation diffusion of LGP incidence surface, three-color light source is after the inner colour mixture of LGP, by exiting surface, derived the white light of certain special color coordinate, can regulate the chromaticity coordinates of backlight emergent light.
This backlight has not only met the emitting brightness of military side-light type LED display unit, the requirement of direction, has realized simultaneously and the adjustable function of light color.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of the adjustable side light type LED backlight source of chromaticity coordinates.
Fig. 2 is the enlarged drawing of II part in Fig. 1.
Label declaration: 10-side light type LED backlight source, 11-LED lamp bar, 12-LGP 12,13-reflectance coating, 14-blooming group, 121-groove;
The specific embodiment
Below with reference to the drawings and specific embodiments, the utility model is described in further details:
Embodiment 1:
As Fig. 1-2, the side light type LED backlight source 10 that a kind of chromaticity coordinates is adjustable, this backlight comprises LED lamp bar 11, LGP 12, reflectance coating 13 and blooming group 14.
On described LED lamp bar 11 according to LED paster 111 white, that blue, white, white, red, white order is being arranged in order each color.
On described LGP 12 incidence surfaces, corresponding indigo plant, red patch location are provided with groove 121.
Described groove 121 bearing of trends are perpendicular to exiting surface, and width equals LED paster width, and central angle is 58 °.
On LED lamp bar 11, white light source is injected from LGP 12 incidence surfaces as main light source, light blue, red color light source sends respectively indigo plant, red color as color modulating light source is injected from the groove 121 generation diffusions of LGP 12 incidence surfaces, the inner and white light colour mixtures at LGP 12.Light after colour mixture, part directly penetrates from LGP 12 exiting surfaces, and part enters LGP 12 inside from the light of LGP 12 bottom outgoing through reflectance coating 13 reflections, then penetrates from LGP 12 exiting surfaces.
Due to LED paster 111 brightness of white, blue, red three kinds of colors can be respectively control circuit by separately regulate, after colour mixture, the chromaticity coordinates of light can be by regulating the brightness of three kinds of colors to realize adjustment.
Finally by blooming group 14, send there is certain orientation, the area source of brightness, uniformity and chromaticity coordinates.
When backlight and display integrate, LED lamp bar is positioned at the upper and lower bilateral symmetry of display and distributes.
Claims (5)
1. the adjustable side light type LED backlight source of chromaticity coordinates, is characterized in that, comprises LGP (12), LED lamp bar (11), reflectance coating (13) and optics module (14);
Reflectance coating and optical mode group are attached to respectively end face and the bottom surface of LGP; LGP is square plate; LED lamp bar is arranged at least one side edge of LGP, and the LED lamp on LED lamp bar is all perpendicular to the corresponding side of this side of LGP; The employing of LED lamp is white, blue, the LED paster of red three kinds of colors; Position relative with White LED paster with blue led paster on this side is equipped with groove; The outline line of groove cross section is circular arc, and the bearing of trend of groove is perpendicular to the exiting surface of LGP.
2. the adjustable side light type LED backlight source of chromaticity coordinates according to claim 1, is characterized in that, LED lamp bar is arranged on 2 relative side edge of LGP.
3. the adjustable side light type LED backlight source of chromaticity coordinates according to claim 1, is characterized in that, LED pasters white, blue, red three kinds of colors are arranged in order according to white, blue, white, white, red, white order.
4. the adjustable side light type LED backlight source of chromaticity coordinates according to claim 1, is characterized in that, the width of groove equals LED paster width.
5. according to the adjustable side light type LED backlight source of chromaticity coordinates described in claim 1-4 any one, it is characterized in that, the central angle of described groove is 58 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550922.0U CN203478016U (en) | 2013-09-05 | 2013-09-05 | Side-light type LED backlight source with adjustable color coordinates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550922.0U CN203478016U (en) | 2013-09-05 | 2013-09-05 | Side-light type LED backlight source with adjustable color coordinates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203478016U true CN203478016U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320550922.0U Expired - Lifetime CN203478016U (en) | 2013-09-05 | 2013-09-05 | Side-light type LED backlight source with adjustable color coordinates |
Country Status (1)
| Country | Link |
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| CN (1) | CN203478016U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572968A (en) * | 2015-12-22 | 2016-05-11 | 武汉华星光电技术有限公司 | Backlight module, liquid crystal display device and backlight adjusting method of liquid crystal display device |
| US10113944B2 (en) | 2016-05-26 | 2018-10-30 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Circuit board testing apparatus and circuit board testing method |
| CN113391394A (en) * | 2021-07-01 | 2021-09-14 | 广东小天才科技有限公司 | Backlight generating device and display device |
-
2013
- 2013-09-05 CN CN201320550922.0U patent/CN203478016U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572968A (en) * | 2015-12-22 | 2016-05-11 | 武汉华星光电技术有限公司 | Backlight module, liquid crystal display device and backlight adjusting method of liquid crystal display device |
| WO2017107269A1 (en) * | 2015-12-22 | 2017-06-29 | 武汉华星光电技术有限公司 | Backlight module, liquid crystal display device and backlight adjustment method therefor |
| US10146088B2 (en) | 2015-12-22 | 2018-12-04 | Wuhan China Star Optoelectronics Technology Co., Ltd | Backlight module, liquid crystal display device and backlight adjustment method thereof |
| US10113944B2 (en) | 2016-05-26 | 2018-10-30 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Circuit board testing apparatus and circuit board testing method |
| CN113391394A (en) * | 2021-07-01 | 2021-09-14 | 广东小天才科技有限公司 | Backlight generating device and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190809 Address after: 410205 Room 1001, Building 10, Changsha Zhongdian Software Park, 39 Jianshan Road, Changsha High-tech Development Zone, Changsha City, Hunan Province Co-patentee after: CHANGSHA HCC HIDEN TECHNOLOGY Co.,Ltd. Patentee after: Hunan Great Wall Science and Technology Information Co.,Ltd. Address before: 410100 No. three, No. 5 East, Changsha Economic Development Zone, Hunan, China Co-patentee before: CHANGSHA HCC HIDEN TECHNOLOGY Co.,Ltd. Patentee before: GREATWALL INFORMATION INDUSTRY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |