CN103411165A - Edge lighting backlight module with uniform light emission - Google Patents
Edge lighting backlight module with uniform light emission Download PDFInfo
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- CN103411165A CN103411165A CN2013103664480A CN201310366448A CN103411165A CN 103411165 A CN103411165 A CN 103411165A CN 2013103664480 A CN2013103664480 A CN 2013103664480A CN 201310366448 A CN201310366448 A CN 201310366448A CN 103411165 A CN103411165 A CN 103411165A
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- light
- lgp
- backlight module
- bright dipping
- guide plate
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Abstract
The invention belongs to the technical field of backlight modules and in particular relates to an edge lighting backlight module with uniform light emission. The edge lighting backlight module comprises a light guide plate, wherein a light source device is arranged on at least one side of the light guide plate; multiple raised dimming lattice points are arranged on the lower end face of the light guide plate; a reflector is arranged below the light guide plate; the middle of the dimming lattice points is recessed inwards. The dimming lattice points of the light guide plate have an outwards raised and inwards recessed shape, so that the scattering effect of the dimming lattice points is good, and the light emission uniformity of the light guide plate is improved.
Description
Technical field
The invention belongs to the back light model setting technology field, specifically, relate to the uniform side-light backlight module of a kind of bright dipping.
Background technology
Along with development, science and technology progress; People are more and more thinner to the requirement of display screen; And the requirement of the luminescent properties of display screen has also improved much simultaneously; The structure of the direct-light-type backlight that the display screen most all adopts, the width that in the structure of direct-light-type backlight, light source and LGP take is larger, therefore be difficult to by its do very thin; So what very thin display screen adopted mostly is the structure of side-light backlight module, light source is arranged on to the side of LGP, light source is generally selected the LED lamp at present; Because the length of LGP is much larger than thickness, while adopting the side-light backlight module, particularly during giant-screen, often occur that bright dipping is inhomogeneous, the situation of dark space is arranged; For fear of dark space, a lot of producers arrange the LED lamp more or increase its luminous power in side, thereby cause the waste of the energy.
Summary of the invention
The object of the invention is to solve the deficiencies in the prior art, a kind of side-light backlight module is provided, this backlight module bright dipping is even.
For achieving the above object, the technical solution used in the present invention is:
The uniform side-light backlight module of a kind of bright dipping, comprise LGP, and at least one side of LGP is provided with light supply apparatus, and the lower surface of described LGP is provided with the light modulation site of a plurality of projections; The below of described LGP is provided with reflecting piece, and the middle part of described light modulation site caves inward.
Further, the left and right sides of described LGP is provided with light supply apparatus.
Further, the dot density of the LGP of close light source is little than the dot density of the LGP away from light source.
Further, LGP is provided with the accommodating hole for the light source of accommodating light supply apparatus.
Further, in accommodating hole, be provided with collector lens.
Further, light supply apparatus comprises aluminium base and LED, and described aluminium base is provided with reflector layer.
The beneficial effect that the present invention obtains is: the shape of evagination indent is adopted in the light modulation site of LGP of the present invention, makes the dispersion effect of light modulation site better, and the light-emitting uniformity of LGP is increased.
The accompanying drawing explanation
Fig. 1 is the first structural representation of the present invention.
Fig. 2 is a structural representation of LGP of the present invention.
Reference numeral is:
1---backlight module 2---LGP 21---accommodating hole
22---light modulation site 23---depressed area 3---collector lenses
4---reflector layer 5---aluminium base 6---LED
7---reflecting piece.
The specific embodiment
To Fig. 2, and the specific embodiment is described further the present invention below in conjunction with accompanying drawing 1.
Embodiment: referring to Fig. 1 to Fig. 2.
The uniform side-light backlight module 1 of a kind of bright dipping, comprise LGP 2, and at least one side of LGP 2 is provided with light supply apparatus, and the lower surface of described LGP 2 is provided with the light modulation site 22 of a plurality of projections; The below of described LGP 2 is provided with reflecting piece 7, and the middle part of described light modulation site 22 caves inward.
At present, when design LGP 2, owing to needing the luminous even of LGP 2, therefore certain the regional lateral light flux in LGP 2 should remain unchanged, and LGP 2 is in vertical direction bright dipping uniformly, therefore the bright dipping of vertical direction should be the light scattered from light modulation site 22, the comparatively constant proportionality coefficient kept between it, hence one can see that, light modulation site 22 is for light is distributed uniformly from the bottom surface of LGP 2, and current site can not well scatter out light uniformly; Through design and test, to find, at the middle part of light modulation site 22, depressed area 23 is set, the suitable light scattering of meeting is more even.
Further, the left and right sides of described LGP 2 is provided with light supply apparatus.
For the larger backlight module 1 of LGP 2 length, need to light supply apparatus be set in the both sides of LGP 2, as the display screen more than 50 cun.
Further, the dot density of the LGP 2 of close light source is little than the dot density of the LGP 2 away from light source.
Consider that LGP 2 needs evenly externally utilizing emitted light, and the light of the bottom surface in LGP 2 zones at close light source place is more, be that luminous flux is larger, therefore when corresponding to the luminous flux of exiting surface, what need to arrange near the dot density of light source is comparatively smaller, be site arrange a little less, the flux ratio of the exiting surface that corresponds to of the luminous flux by the site scattering increases like this, thus it is even to be conducive to bright dipping.
Further, LGP 2 is provided with the accommodating hole 21 for the light source of accommodating light supply apparatus.
Accommodating hole 21 is set, can improves the light utilization efficiency of light source, avoid the light waste.Thereby be conducive to reduce the quantity of light source led 6, energy-conservation.
Further, in accommodating hole 21, be provided with collector lens 3.
In order to allow light source light out in interior parallel the entering of LGP 2, therefore, at the interior collector lens 3 that arranges of accommodating hole 21, make light that light source sends become directional light and enter in LGP 2, more even from the light sent in LGP 2 like this.
Further, light supply apparatus comprises aluminium base 5 and LED6, and described aluminium base 5 is provided with reflector layer 4.
In order to improve light utilization efficiency, on the surface of aluminium base 5, reflector layer 4 is set, allow the light that LED6 sends more enter in LGP 2.In addition, because the needed LED6 quantity of the display of giant-screen is larger, for convenience of its heat radiation, therefore selected aluminium base 5 as circuit board.
Be only below the application's preferred embodiment, equivalent technical solutions on this basis still falls into the application protection domain.
Claims (6)
1. the uniform side-light backlight module of bright dipping, comprise LGP, and at least one side of LGP is provided with light supply apparatus, it is characterized in that: the lower surface of described LGP is provided with the light modulation site of a plurality of projections; The below of described LGP is provided with reflecting piece, and the middle part of described light modulation site caves inward.
2. the uniform side-light backlight module of a kind of bright dipping according to claim 1, it is characterized in that: the left and right sides of described LGP is provided with light supply apparatus.
3. the uniform side-light backlight module of a kind of bright dipping according to claim 1 is characterized in that: the dot density near the LGP of light source is little than the dot density of the LGP away from light source.
4. the uniform side-light backlight module of a kind of bright dipping according to claim 1, it is characterized in that: LGP is provided with the accommodating hole for the light source of accommodating light supply apparatus.
5. the uniform side-light backlight module of a kind of bright dipping according to claim 4, is characterized in that: in accommodating hole, be provided with collector lens.
6. the uniform side-light backlight module of a kind of bright dipping according to claim 1, it is characterized in that: light supply apparatus comprises aluminium base and LED, described aluminium base is provided with reflector layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310366448.0A CN103411165B (en) | 2013-08-21 | 2013-08-21 | A kind of sidelight type backlight module of uniform in light emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310366448.0A CN103411165B (en) | 2013-08-21 | 2013-08-21 | A kind of sidelight type backlight module of uniform in light emission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103411165A true CN103411165A (en) | 2013-11-27 |
| CN103411165B CN103411165B (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310366448.0A Expired - Fee Related CN103411165B (en) | 2013-08-21 | 2013-08-21 | A kind of sidelight type backlight module of uniform in light emission |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360541A (en) * | 2014-12-03 | 2015-02-18 | 京东方科技集团股份有限公司 | Light guide plate, backlight module, liquid crystal display module and liquid crystal display device |
| CN104456208A (en) * | 2014-12-03 | 2015-03-25 | 遵义市义阳光电有限公司 | LED (Light Emitting Diode) energy-saving lamp |
| CN104880759A (en) * | 2015-05-19 | 2015-09-02 | 武汉华星光电技术有限公司 | Backlight unit and display apparatus |
| CN105786306A (en) * | 2014-12-25 | 2016-07-20 | 比亚迪股份有限公司 | Vehicle-mounted head-up display system and projected image height adjusting method thereof |
| CN106094346A (en) * | 2016-08-29 | 2016-11-09 | 合肥惠科金扬科技有限公司 | A kind of curved surface LCD backlight module |
| CN106094345A (en) * | 2016-08-29 | 2016-11-09 | 合肥惠科金扬科技有限公司 | A kind of LCD screen backlight structure |
| CN106383417A (en) * | 2016-08-29 | 2017-02-08 | 合肥惠科金扬科技有限公司 | Liquid crystal display screen backlight structure production method |
| CN108613095A (en) * | 2017-01-03 | 2018-10-02 | 联嘉光电股份有限公司 | Light emitting device and vehicle-mounted light emitting device |
| TWI823439B (en) * | 2021-09-03 | 2023-11-21 | 群創光電股份有限公司 | Backlight module and electronic device |
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| CN103148453A (en) * | 2013-03-12 | 2013-06-12 | 京东方科技集团股份有限公司 | Light guide plate, optical diaphragm, backlight module, array substrate and liquid crystal module |
| CN103217733A (en) * | 2012-01-19 | 2013-07-24 | 扬昕科技(苏州)有限公司 | Light guide plate and backlight module |
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| KR20080012005A (en) * | 2006-08-02 | 2008-02-11 | (주)에이치엔디 레볼루션 | Light guide plate having a prism and hologram pattern and method for manufacturing thereof |
| CN201107519Y (en) * | 2007-10-30 | 2008-08-27 | 亚通光电科技(深圳)有限公司 | Back light module unit with grid point structure |
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| CN202649506U (en) * | 2012-07-04 | 2013-01-02 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and display apparatus |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360541A (en) * | 2014-12-03 | 2015-02-18 | 京东方科技集团股份有限公司 | Light guide plate, backlight module, liquid crystal display module and liquid crystal display device |
| CN104456208A (en) * | 2014-12-03 | 2015-03-25 | 遵义市义阳光电有限公司 | LED (Light Emitting Diode) energy-saving lamp |
| CN104360541B (en) * | 2014-12-03 | 2017-09-29 | 京东方科技集团股份有限公司 | A kind of light guide plate, backlight module, liquid crystal display module and liquid crystal display device |
| US10067367B2 (en) | 2014-12-03 | 2018-09-04 | Boe Technology Group Co., Ltd. | Light guide plate, backlight module and liquid cristal display device |
| CN105786306A (en) * | 2014-12-25 | 2016-07-20 | 比亚迪股份有限公司 | Vehicle-mounted head-up display system and projected image height adjusting method thereof |
| CN104880759A (en) * | 2015-05-19 | 2015-09-02 | 武汉华星光电技术有限公司 | Backlight unit and display apparatus |
| CN106094346A (en) * | 2016-08-29 | 2016-11-09 | 合肥惠科金扬科技有限公司 | A kind of curved surface LCD backlight module |
| CN106094345A (en) * | 2016-08-29 | 2016-11-09 | 合肥惠科金扬科技有限公司 | A kind of LCD screen backlight structure |
| CN106383417A (en) * | 2016-08-29 | 2017-02-08 | 合肥惠科金扬科技有限公司 | Liquid crystal display screen backlight structure production method |
| CN108613095A (en) * | 2017-01-03 | 2018-10-02 | 联嘉光电股份有限公司 | Light emitting device and vehicle-mounted light emitting device |
| TWI823439B (en) * | 2021-09-03 | 2023-11-21 | 群創光電股份有限公司 | Backlight module and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103411165B (en) | 2016-07-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20171101 Address after: 523565 Guangdong city of Dongguan province Changping Zhen Heng Jiang Jiang Xia Heng Industrial Road, set up a file Patentee after: KINGSUN OPTOELECTRONIC CO., LTD. Address before: 523565 Guangdong province Dongguan city Changping town Hengjiang Dongguan KingSun Au Optronics Co set up a file Patentee before: Dongguan Qinshang Photoelectric Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 Termination date: 20180821 |