CN103292246B - A kind of blooming piece, backlight module and display device - Google Patents
A kind of blooming piece, backlight module and display device Download PDFInfo
- Publication number
- CN103292246B CN103292246B CN201310218362.3A CN201310218362A CN103292246B CN 103292246 B CN103292246 B CN 103292246B CN 201310218362 A CN201310218362 A CN 201310218362A CN 103292246 B CN103292246 B CN 103292246B
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- China
- Prior art keywords
- blooming piece
- backlight module
- light source
- light
- micro structure
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0051—Diffusing sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a kind of blooming piece, backlight module and display device, relate to Display Technique field, solve light at the gap between the blooming piece of backlight module in prior art and lamp bar and assemble the problem going out light inequality caused.A kind of blooming piece, including: upper surface, lower surface and the multiple sides between upper and lower surface, wherein, at least on the side of light source, it is being provided with multiple micro structure, is being used for making light deflection scattering send.The present invention is applicable to design and the manufacture of display device.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of blooming piece, backlight module and display device.
Background technology
Existing LCD (Liquid Crystal Display, liquid crystal display) does not sends out due to liquid crystal itself
Light, needs to realize display function by backlight module.
As it is shown in figure 1, existing backlight module include lamp bar 10, light source 11, light guide plate 12 and
Various blooming pieces 15 (including diffusion sheet 13 and two prismatic lenses 14), wherein, light source 11 is arranged
On lamp bar 10.Light source 11 includes multiple LED (Light) Emitting Diode, light-emitting diodes
Pipe) point source 111, as shown in Figure 2.The light that LED sends from the side of light guide plate enter light guide plate it
After, penetrate from the upper surface of light guide plate through multiple reflections, scatter through diffusion sheet, then pass through two-layer
Prismatic lens focus irradiation is on a display screen.
Owing to existing backlight module is all to be assembled by machine, it is contemplated that various assembling factors, at optics
Gap can be there is, as it is shown in figure 1, the light that LED sends is by around here between diaphragm 15 and lamp bar 10
Gap sends, and without being scattered as normal light and converge, so can cause the luminescence of backlight module
Brightness unevenness.
Summary of the invention
Embodiments of the invention provide a kind of blooming piece, backlight module and display device, described blooming piece
The side of distance light source is provided with micro structure, light deflection scattering can be made to send, improve whole backlight module
Uniformity of luminance.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
Embodiments provide a kind of blooming piece, including: upper surface, lower surface and be positioned at upper table
Multiple sides between face and lower surface, wherein, are at least being provided with multiple micro-knot on the side of light source
Structure, is used for making light deflection scattering send.
Optionally, described micro structure is miniature circular arc granule or prism.
Optionally, the size of described micro structure is between 30-50 μm.
Optionally, two adjacent micro structures are connected.
Optionally, described blooming piece is prismatic lens or diffusion sheet.
Embodiments provide a kind of backlight module, including: light source and blooming piece, wherein, institute
State arbitrary described blooming piece that blooming piece provides for the embodiment of the present invention.
Optionally, described blooming piece includes prismatic lens and diffusion sheet.
Optionally, described light source includes multiple LED point light source, and each LED point light source correspondence blooming
At least one micro structure on sheet.
Embodiments provide a kind of display device, including the embodiment of the present invention provide arbitrary described
Backlight module.
A kind of blooming piece, backlight module and the display device that the embodiment of the present invention provides, described blooming piece
It is being provided with multiple micro structure, the light that can be penetrated from gap by described micro structure on the side of light source
Deflect, partially deflected after light by repeatedly reflecting, reenter light guide plate, diffusion sheet and prism
Sheet, again assembles through diffusion sheet scattering and prismatic lens and sends, it is achieved uniformly go out light.And by described micro-knot
After light is deflected by structure, between two LED point light source the intensity of light and each LED point light source just to position
The similar intensity of light, and then the uniformity of luminance of whole backlight module can be improved.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of backlight module of the prior art；
Fig. 2 is the plan structure schematic diagram of backlight module in prior art；
A kind of blooming piece schematic diagram that Fig. 3 provides for the embodiment of the present invention；
Fig. 4 is the main TV structure schematic diagram of the blooming piece shown in Fig. 3；
Fig. 5 is the plan structure schematic diagram of the blooming piece shown in Fig. 3；
The schematic diagram of a kind of backlight module that Fig. 6 provides for the embodiment of the present invention；
The plan structure schematic diagram of a kind of backlight module that Fig. 7 provides for the embodiment of the present invention；
Reference:
10-lamp bar；11-light source；111-LED point source；12-light guide plate；13-diffusion sheet；14-prismatic lens；
15-blooming piece；20-miniature circular arc granule.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.
The invention provides a kind of blooming piece, as it is shown on figure 3, include: upper surface, lower surface and position
Multiple sides between upper and lower surface, wherein, are at least provided with many on the side of close light source
Individual micro structure, is used for making light deflection scattering send.
It should be noted that existing blooming piece, including diffusion sheet and prismatic lens, it is generally rectangular cross-section
Structure, and they are in four sides of rectangle, including two sides and the correspondence two on corresponding two long limits
Two sides of minor face.The typically side by corresponding minor face is the most right with the light source of backlight module.Above-mentioned near light
After the side in source refers to that backlight module is completed, with light source just to the side near light source, with close light source
The relative one side in side be the side away from light source.The blooming piece that the present invention provides is mainly used in backlight mould
Group, is at least just being arranged on a side of backlight with described backlight in the most described blooming piece
Multiple micro structures, are used for so that light deflection scattering sends.It is of course also possible in the side away from described light source
Described micro structure is set, so on relative two side of blooming piece, is provided with micro structure, then in peace
The either side of micro structure can will be provided with near described light source when filling described blooming piece.
Further, since LED has certain lighting angle, in this lighting angle, light intensity is very big, as
Shown in Fig. 2, with LED just to the light intensity of position big, but two LED positions in the middle
The intensity of light is little, if not being diffused and converging, the luminescence of backlight module there will be brightness unevenness,
And then affecting image quality, the visual effect of end product is affected.In the embodiment of the present invention, such as figure
Shown in 7, the light that LED point light source sends is through micro structure deflection light scattering, and whole backlight module is luminous uniformly,
Between i.e. two LED point light source the intensity of light and each LED point light source just to the similar intensity of light of position,
And then the uniformity of luminance of whole backlight module can be improved.
A kind of blooming piece that the embodiment of the present invention provides, described blooming piece is setting on the side of light source
Being equipped with multiple micro structure, light can be made to deflect by described micro structure, part is after micro structure deflects
Light is absorbed by other assemblies of surrounding；Light after the most partially deflected, by repeatedly reflecting, reenters leaded light
Plate, diffusion sheet and prismatic lens, again assemble through diffusion sheet scattering and prismatic lens and send, it is achieved uniformly go out
Light.And after light being deflected by described micro structure, the intensity of light and each LED between two LED point light source
Point source just to the similar intensity of light of position, and then can improve whole backlight module luminous uniformly
Property.
Optionally, described micro structure is uniformly arranged on the side of blooming piece.Micro structure is uniformly arranged, then
Can outwards be scattered by the light that backlight module light source sends is more uniform.
Optionally, described micro structure is miniature circular arc granule or prism.As shown in Figure 3-Figure 5, the present invention is real
Execute in example is all to be described in detail as a example by miniature circular arc granule by described micro structure.
Optionally, the size of described micro structure is between 30-50 μm.
Optionally, two adjacent micro structures are connected.Multiple micro structures are connected, then micro structure arrangement is closely,
Can be more uniform through the light of microstructures scatters.
Optionally, described blooming piece is prismatic lens or diffusion sheet.In backlight module, blooming piece is main
Including diffusion sheet and two prismatic lenses, in the embodiment of the present invention, described blooming piece can be diffusion sheet also
It can be prismatic lens.As shown in Figure 3-Figure 5, it is described in detail as a example by described blooming piece is as diffusion sheet.
Embodiments provide a kind of backlight module, as shown in Figure 6, including: light source and blooming
Sheet, wherein, arbitrary described blooming piece that described blooming piece provides for the embodiment of the present invention.
It should be noted that as shown in Figure 6, the light source 11 of described backlight module is fixed on lamp bar 10,
And described light source 11 includes multiple LED point light source 111.The blooming piece of backlight module include diffusion sheet and
Prismatic lens, then in the embodiment of the present invention, described blooming piece can be prismatic lens can also be diffusion sheet.And
Preferably, described blooming piece is the prismatic lens on backlight module and diffusion sheet.The i.e. prism of backlight module
Sheet and diffusion sheet are all provided with micro structure in the side close with light source.Described micro structure can be by light guide plate
The luminous reflectance being introduced into diffusion sheet and prismatic lens launched is gone out, and part is after micro structure reflection deflection
Light is absorbed by other assemblies of surrounding；Light after the most partially deflected, by repeatedly reflecting, reenters leaded light
Plate, diffusion sheet and prismatic lens, again assemble through diffusion sheet scattering and prismatic lens and send, it is achieved uniformly go out
Light.And the light that LED point light source sends is through micro structure deflection light scattering, whole backlight module is luminous uniformly,
Between i.e. two LED point light source the intensity of light and each LED point light source just to the similar intensity of light of position,
And then so that the luminescence of whole backlight module is uniform.
Optionally, as it is shown in fig. 7, described light source includes multiple LED point light source 111, and each LED point
At least one micro structure on light source correspondence blooming piece.So each LED point light source all can pass through institute
State the light that micro structure makes LED point light source send to be deflected outward by, and then make between two LED point light source
The intensity of the light of position increases, the uniform in light emission of whole backlight module.
The invention provides a kind of display device, the arbitrary described backlight mould provided including the embodiment of the present invention
Group.Described display device can be the display device such as liquid crystal display, Electronic Paper and include these display
Any product with display function or the parts such as the TV of part, digital camera, mobile phone, panel computer.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to
This, any those familiar with the art, in the technical scope that the invention discloses, can readily occur in
Change or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention
Should be as the criterion with described scope of the claims.
Claims (9)
1. a blooming piece, including: upper surface, lower surface and between upper and lower surface
Multiple sides, it is characterised in that be at least provided with multiple micro structure on the side of light source, described micro-
Structure is miniature circular arc granule or prism, and the light for making light source send is deflected outward by scattering and sends.
Blooming piece the most according to claim 1, it is characterised in that the plurality of micro structure is described
Uniformly arrange on the side of blooming piece.
Blooming piece the most according to claim 1, it is characterised in that the size of described micro structure is at 30-50
Between μm.
Blooming piece the most according to claim 1, it is characterised in that two adjacent micro structures are connected.
Blooming piece the most according to claim 1, it is characterised in that described blooming piece is prismatic lens
Or diffusion sheet.
6. a backlight module, including: light source and blooming piece, it is characterised in that described blooming piece
For the blooming piece described in any one of claim 1-5.
Backlight module the most according to claim 6, it is characterised in that described blooming piece includes prism
Sheet and diffusion sheet.
Backlight module the most according to claim 6, it is characterised in that described light source includes multiple LED
At least one micro structure on point source, and each LED point light source correspondence blooming piece.
9. a display device, it is characterised in that include the backlight module described in any one of claim 6-8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310218362.3A CN103292246B (en) | 2013-06-04 | 2013-06-04 | A kind of blooming piece, backlight module and display device |
| PCT/CN2013/088160 WO2014194614A1 (en) | 2013-06-04 | 2013-11-29 | Optical diaphragm, backlight module, and display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310218362.3A CN103292246B (en) | 2013-06-04 | 2013-06-04 | A kind of blooming piece, backlight module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103292246A CN103292246A (en) | 2013-09-11 |
| CN103292246B true CN103292246B (en) | 2016-08-24 |
Family
ID=49093563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310218362.3A Active CN103292246B (en) | 2013-06-04 | 2013-06-04 | A kind of blooming piece, backlight module and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103292246B (en) |
| WO (1) | WO2014194614A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292246B (en) * | 2013-06-04 | 2016-08-24 | 北京京东方光电科技有限公司 | A kind of blooming piece, backlight module and display device |
| CN105278028A (en) * | 2014-06-20 | 2016-01-27 | 群创光电股份有限公司 | Light guide plate and display device using light guide plate |
| TWI773182B (en) | 2021-03-11 | 2022-08-01 | 瑞儀光電股份有限公司 | Backlight module and display device |
| TWI799306B (en) * | 2021-03-11 | 2023-04-11 | 瑞儀光電股份有限公司 | Backlight module and display device |
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| CN101295047A (en) * | 2008-06-27 | 2008-10-29 | 长兴化学工业股份有限公司 | Optical film |
| CN102661574A (en) * | 2012-04-28 | 2012-09-12 | 深圳市华星光电技术有限公司 | Light guide plate and backlight mould provided with same |
| CN102878525A (en) * | 2012-09-21 | 2013-01-16 | 北京京东方光电科技有限公司 | Prism film, side-light type backlight module and liquid crystal display device |
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| JP2001117097A (en) * | 1999-10-22 | 2001-04-27 | Sharp Corp | Liquid crystal display device |
| JP2001126523A (en) * | 1999-10-26 | 2001-05-11 | Advanced Display Inc | Sheet light source device and liquid crystal display using it |
| CN1646854A (en) * | 2002-03-29 | 2005-07-27 | 松下电器产业株式会社 | Illumination unit and liquid crystal display apparatus comprising same |
| US7520652B2 (en) * | 2003-01-29 | 2009-04-21 | Mitsubishi Rayon Co., Ltd. | Area light source |
| JP2009163240A (en) * | 2007-12-13 | 2009-07-23 | Dic Corp | Prism sheet, backlight unit using the same, and liquid crystal display |
| JP5560062B2 (en) * | 2010-02-26 | 2014-07-23 | ゼブラ株式会社 | W / O type emulsion ink composition for writing instrument and writing instrument |
| CN102759972A (en) * | 2011-04-28 | 2012-10-31 | 鸿富锦精密工业（深圳）有限公司 | Chassis radiator |
| TWI474086B (en) * | 2012-06-11 | 2015-02-21 | Au Optronics Corp | Display device and light guiding plate thereof |
| CN102830460B (en) * | 2012-08-06 | 2017-02-15 | 北京京东方光电科技有限公司 | prism film, backlight module and display device |
| CN202791811U (en) * | 2012-08-08 | 2013-03-13 | 苏州天禄光电科技有限公司 | Light guide plate |
| CN103292246B (en) * | 2013-06-04 | 2016-08-24 | 北京京东方光电科技有限公司 | A kind of blooming piece, backlight module and display device |
-
2013
- 2013-06-04 CN CN201310218362.3A patent/CN103292246B/en active Active
- 2013-11-29 WO PCT/CN2013/088160 patent/WO2014194614A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295047A (en) * | 2008-06-27 | 2008-10-29 | 长兴化学工业股份有限公司 | Optical film |
| CN102661574A (en) * | 2012-04-28 | 2012-09-12 | 深圳市华星光电技术有限公司 | Light guide plate and backlight mould provided with same |
| CN102878525A (en) * | 2012-09-21 | 2013-01-16 | 北京京东方光电科技有限公司 | Prism film, side-light type backlight module and liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014194614A1 (en) | 2014-12-11 |
| CN103292246A (en) | 2013-09-11 |
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