CN103411165B - A kind of sidelight type backlight module of uniform in light emission - Google Patents
A kind of sidelight type backlight module of uniform in light emission Download PDFInfo
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- CN103411165B CN103411165B CN201310366448.0A CN201310366448A CN103411165B CN 103411165 B CN103411165 B CN 103411165B CN 201310366448 A CN201310366448 A CN 201310366448A CN 103411165 B CN103411165 B CN 103411165B
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- light
- guide plate
- light guide
- uniform
- backlight module
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Abstract
The invention belongs to back light model setting technology field, specifically, relate to the sidelight type backlight module of a kind of uniform in light emission.Including light guide plate, at least side of light guide plate is provided with light supply apparatus, and the lower surface of described light guide plate is provided with the light modulation site of multiple projection；Described light guide plate be connected with reflecting piece, the middle part of described light modulation site caves inward.The light modulation site of the light guide plate of the present invention adopts the shape of evagination indent so that the dispersion effect of light modulation site is better, and the light-emitting uniformity of light guide plate is increased.
Description
Technical field
The invention belongs to back light model setting technology field, specifically, relate to the sidelight type backlight module of a kind of uniform in light emission.
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 also improves much simultaneously；The display screen structure of direct-light-type backlights that great majority all adopt at present, the width that in the structure of direct-light-type backlight, light source and light guide plate take is relatively big, and what be therefore difficult to be done is very thin；So what very thin display screen adopted mostly is the structure of sidelight type backlight module, light source being arranged on the side of light guide plate, light source generally selects LED at present；Owing to the length of light guide plate is much larger compared with thickness, when adopting sidelight type backlight module, particularly during giant-screen, often go out to reveal light uneven, have the situation of dark space；In order to avoid dark space, a lot of producers arrange LED more or increase its luminous power in side, thus causing the waste of the energy.
Summary of the invention
It is an object of the invention to solve the deficiencies in the prior art, it is provided that a kind of sidelight type backlight module, this backlight module uniform in light emission.
For reaching above-mentioned purpose, the technical solution used in the present invention is:
The sidelight type backlight module of a kind of uniform in light emission, including light guide plate, at least side of light guide plate is provided with light supply apparatus, and the lower surface of described light guide plate is provided with the light modulation site of multiple projection；Described light guide plate be connected with reflecting piece, the middle part of described light modulation site caves inward.
Further, the left and right sides of described light guide plate is provided with light supply apparatus.
Further, little further away from the dot density of the light guide plate of light source near the dot density of the light guide plate of light source.
Further, light guide plate is provided with the accommodating hole of the light source for housing light supply apparatus.
Further, it is provided with collecting lens in accommodating hole.
Further, light supply apparatus includes aluminium base and LED, and described aluminium base is provided with reflector layer.
The light modulation site of the light guide plate having the beneficial effect that the present invention that the present invention obtains adopts the shape of evagination indent so that the dispersion effect of light modulation site is better, and the light-emitting uniformity of light guide plate is increased.
Accompanying drawing explanation
Fig. 1 is the first structural representation of the present invention.
Fig. 2 is a structural representation of the light guide plate of the present invention.
Accompanying drawing is labeled as:
1 backlight module 2 light guide plate 21 accommodating hole
22 light modulation depressed area 3, site 23 collecting lenses
4 reflector layer 5 aluminium base 6 LED
7 reflecting piece.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 to Fig. 2, and the present invention is described further by detailed description of the invention.
Embodiment: referring to Fig. 1 to Fig. 2.
The sidelight type backlight module 1 of a kind of uniform in light emission, including light guide plate 2, at least side of light guide plate 2 is provided with light supply apparatus, and the lower surface of described light guide plate 2 is provided with the light modulation site 22 of multiple projection；Described light guide plate 2 be connected with reflecting piece 7, the middle part of described light modulation site 22 caves inward.
At present, when designing light guide plate 2, owing to needing the luminous uniform of light guide plate 2, therefore the lateral light flux in certain region in light guide plate 2 should be to maintain constant, and light guide plate 2 goes out light at uniform vertical direction, therefore the light that goes out of vertical direction should be the light scattered from light modulation site 22, the comparatively constant proportionality coefficient kept between, it can thus be appreciated that, light modulation site 22 is to be distributed uniformly from the bottom surface of light guide plate 2 by light, and light can not well be scattered out by current site uniformly；Through design and test, it has been found that arrange depressed area 23 at the middle part of light modulation site 22, can suitable light scatter be more uniformly distributed.
Further, the left and right sides of described light guide plate 2 is provided with light supply apparatus.
For the backlight module 1 that light guide plate 2 length is bigger, it is necessary to be configured light supply apparatus in the both sides of light guide plate 2, such as more than 50 cun display screens.
Further, little further away from the dot density of the light guide plate 2 of light source near the dot density of the light guide plate 2 of light source.
Consider that light guide plate 2 needs uniformly emission light, and the light of bottom surface near light guide plate 2 region at light source place is more, namely luminous flux is bigger, therefore when corresponding to the luminous flux of exiting surface, need to will be close to that the dot density of light source arranges is comparatively smaller, what namely site was arranged is a little less, and the flux ratio of the exiting surface so corresponded to by the luminous flux of site scattering is increased, thus being conducive to uniform in light emission.
Further, light guide plate 2 is provided with the accommodating hole 21 of the light source for housing light supply apparatus.
Accommodating hole 21 is set, it is possible to improve the light utilization efficiency of light source, it is to avoid light is wasted.Thus advantageously reducing the quantity of light source led 6, energy-conservation.
Further, it is provided with collecting lens 3 in accommodating hole 21.
In order to allow the entrance parallel in light guide plate 2 of light source light out, therefore collecting lens 3 is set in accommodating hole 21 so that the light that light source sends becomes directional light and enters in light guide plate 2, and the light so sent in light guide plate 2 is more uniform.
Further, light supply apparatus includes aluminium base 5 and LED6, and described aluminium base 5 is provided with reflector layer 4.
In order to improve light utilization efficiency, at the surface configuration reflector layer 4 of aluminium base 5, the LED6 light sent is allowed more to enter in light guide plate 2.Further, since the LED6 quantity required for the display of giant-screen is relatively big, for convenience of its heat radiation, therefore select aluminium base 5 as circuit board.
Below being only the preferred embodiment of the application, equivalent technical solutions on this basis still falls within application protection domain.
Claims (3)
1. a sidelight type backlight module for uniform in light emission, including light guide plate, at least side of light guide plate is provided with light supply apparatus, it is characterised in that: the lower surface of described light guide plate is provided with the light modulation site of multiple projection；Described light guide plate be connected with reflecting piece, the middle part of described light modulation site caves inward；
Light guide plate is provided with the accommodating hole of the light source for housing light supply apparatus；The curved setting of incidence surface of accommodating hole, is provided with collecting lens in accommodating hole, the light that light source sends becomes directional light and enters into light guide plate；
Light supply apparatus includes aluminium base and LED, and described aluminium base is provided with reflector layer.
2. the sidelight type backlight module of a kind of uniform in light emission according to claim 1, it is characterised in that: the left and right sides of described light guide plate is provided with light supply apparatus.
3. the sidelight type backlight module of a kind of uniform in light emission according to claim 1, it is characterised in that: little further away from the dot density of the light guide plate of light source near the dot density of the light guide plate of light source.
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 CN103411165A (en) | 2013-11-27 |
| CN103411165B true CN103411165B (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| Country | Link |
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| CN (1) | CN103411165B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN104880759B (en) * | 2015-05-19 | 2019-02-26 | 武汉华星光电技术有限公司 | Back light unit and display device |
| 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 |
| TWI612251B (en) * | 2017-01-03 | 2018-01-21 | 聯嘉光電股份有限公司 | Light emitting devices |
| US11448812B1 (en) * | 2021-09-03 | 2022-09-20 | Innolux Corporation | Backlight module including adhesive structure and electronic device including the same |
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| 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 |
| CN102537754A (en) * | 2010-12-14 | 2012-07-04 | 上海蓝光科技有限公司 | Sidelight type backlight source module |
| 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 |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100819542B1 (en) * | 2006-08-02 | 2008-04-08 | (주)에이치엔디 레볼루션 | Light guide plate having a prism and hologram pattern and method for manufacturing thereof |
| CN202791687U (en) * | 2012-09-29 | 2013-03-13 | 东莞市亚星半导体有限公司 | Backlight module |
| 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 |
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- 2013-08-21 CN CN201310366448.0A patent/CN103411165B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102537754A (en) * | 2010-12-14 | 2012-07-04 | 上海蓝光科技有限公司 | Sidelight type backlight source 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 |
| 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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| CN103411165A (en) | 2013-11-27 |
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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 |