CN103062671A - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN103062671A CN103062671A CN2011103256317A CN201110325631A CN103062671A CN 103062671 A CN103062671 A CN 103062671A CN 2011103256317 A CN2011103256317 A CN 2011103256317A CN 201110325631 A CN201110325631 A CN 201110325631A CN 103062671 A CN103062671 A CN 103062671A
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- CN
- China
- Prior art keywords
- light
- light source
- backlight module
- substrate
- lgp
- Prior art date
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Abstract
A backlight module comprises a light source component and a light guiding plate. The light guiding plate comprises a light in-coming face, and the light source component right faces the light in-coming face of the light guiding plate and comprises a substrate and a plurality of light sources. The plurality of light sources are all blue-light light-emitting diode (LED) light sources and distributed on the substrate. The backlight module further comprises a transparent adhesive layer and light diffusion components. The transparent adhesive layer comprises a first surface and a second surface opposite to the first surface, wherein the first surface is arranged on the light in-coming face of the light guiding plate in a pasting mode. Each light diffusion component is a fluorescent plate containing yellow fluorescent powder, the fluorescent plates are arranged corresponding to the plurality of blue-light LED light sources and continuously distributed on the second surface of the transparent adhesive layer, and the fluorescent plates are used for converting point light sources emitted by the light source component to area light sources. The backlight module is high in uniformity of luminance.
Description
Technical field
The present invention relates to a kind of backlight module.
Background technology
LED has to be had than power saving, whole module thin thickness, without mercury pollution, but the advantages such as local dimming, therefore, the backlight module of existing LCDs replaces gradually traditional CCFL (cold-cathode tube) by LED (light emitting diode) as light source and is used as light source.
LED is spot light, many spot light LED need be arranged as a straight line artificial line light source during application.Yet this kind arrangement mode can cause the regional luminance in the LGP in LED dead ahead excessively bright, and the too dark brightness of two LEDs zone lines causes Luminance Distribution inhomogeneous, and LGP light inlet side has the staggered problem of obvious light-dark-light-dark.
Summary of the invention
In view of this, be necessary to provide a kind of brightness uniform backlight module.
A kind of backlight module, it comprises a light source assembly and a LGP.Described LGP comprises an incidence surface.The incidence surface of described light source assembly and described LGP is over against setting.Described light source assembly comprises a substrate and a plurality of light source.Described a plurality of light source is the blue-ray LED light source and is arranged on the described substrate.Described backlight module further comprises a substratum transparent and a light diffusion element.Described substratum transparent comprises a first surface and a second surface relative with described first surface.Described first surface is stained with on the incidence surface that is located at described LGP.Described light diffusion element is the fluorescent plate that contains yellow fluorescent powder, and its corresponding described a plurality of blue-ray LED light source setting also is distributed on the second surface of described substratum transparent continuously, and the spot light that is used for described light source assembly is sent is converted into area source.
Compared to prior art, the described light diffusion element of backlight module of the present invention changes into area source with the spot light that described light source sends, thereby has improved brightness uniformity.Simultaneously, because described substratum transparent directly is stained with on the incidence surface that is located at described LGP, and light diffusion element is evenly distributed in described substratum transparent, but the light direct-coupling that described light source sends enters in the LGP without the light losing of the reflection of air interface and scattering.In addition, the illuminating part of described light source and the incidence surface of described LGP over against, the light conversion ratio is high.
Description of drawings
Fig. 1 is the schematic perspective view of the backlight module that provides of better embodiment of the present invention;
Fig. 2 is the schematic perspective view of LGP, substratum transparent and another angle of light diffusion element of the backlight module among Fig. 1 of the present invention.
The main element symbol description
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100 |
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10 |
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20 |
| Substratum transparent | 30 |
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40 |
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11 |
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12 |
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121 |
| Illuminating |
122 |
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201 |
| Exiting |
202 |
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31 |
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32 |
The following specific embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
The specific embodiment
See also Fig. 1 and Fig. 2, be the backlight module 100 that better embodiment of the present invention provides, it comprises a light source assembly 10, a LGP 20, a substratum transparent 30 and a light diffusion element 40.Described light source assembly 10 and described light diffusion element 30 are over against setting, and described LGP 20 is installed on the described LGP 20.
Described light source assembly 10 comprises a substrate 11 and a plurality of light source 12.In the present embodiment, described substrate 11 is a cube structure.Described a plurality of light source 12 is the blue-ray LED light source and array is arranged on the described substrate 11.Each light source 12 comprises an electrical connection section 121 and an illuminating part 122.Described electrical connection section 121 is carried on the described substrate 11 and with described substrate 11 and is electrically connected.Described illuminating part 122 is used for luminous.
Described LGP 20 comprises incidence surface 201 and the exiting surface 202 away from described substrate 11 near described substrate 11.Described incidence surface 201 is oppositely arranged with exiting surface 202.In the present embodiment, the shape of described incidence surface 201 and exiting surface 202 and shape and the size of size and described substrate 11 are corresponding.
Described substratum transparent 30 is a transparent double faced adhesive tape, and it comprises a first surface 31 and a second surface 32 relative with described first surface 31.Described first surface 31 is stained with on the incidence surface 201 that is located at described LGP 20.And second surface 32 is relative with described light source assembly 10.
In the present embodiment, the fluorescent plate that contain yellow fluorescent powder of described light diffusion element 40 for adopting far-end fluorescent material technology (Remote phosphor technology) to make is distributed on the second surface 32 of described substratum transparent 30 its corresponding described a plurality of blue-ray LED light source setting and continuous uniform.Described light diffusion element 40 is stained with on the second surface 32 that is located at substratum transparent 30.
During use, the illuminating part 122 of described a plurality of light source 12 all sends blue light, and excites the yellow fluorescent powder of described light diffusion element 40 to produce sodium yellow, the blue light of sending with the illuminating part 122 of described a plurality of light sources 12 again, thereby obtain white light, enter the incidence surface 201 of described LGP 20.Exiting surface 202 finally by described LGP 20 projects described LGP 20.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection domain that all should belong to claim of the present invention with distortion.
Claims (4)
1. backlight module, it comprises a light source assembly and a LGP, described LGP comprises an incidence surface, the incidence surface of described light source assembly and described LGP is over against setting, described light source assembly comprises a substrate and a plurality of light source, described a plurality of light source is the blue-ray LED light source and is arranged on the described substrate, it is characterized in that: described backlight module further comprises a substratum transparent and a light diffusion element, described substratum transparent comprises a first surface and a second surface relative with described first surface, described first surface is stained with on the incidence surface that is located at described LGP, described light diffusion element is the fluorescent plate that contains yellow fluorescent powder, its corresponding described a plurality of blue-ray LED light source setting also is distributed on the second surface of described substratum transparent continuously, and the spot light that is used for described light source assembly is sent is converted into area source.
2. backlight module as claimed in claim 1 is characterized in that: the shape of described incidence surface and exiting surface and shape and the size of size and described substrate are corresponding.
3. backlight module as claimed in claim 1, it is characterized in that: described substrate is a cube structure.
4. backlight module as claimed in claim 1, it is characterized in that: each light source comprises an electrical connection section and an illuminating part, and described electrical connection section is carried on the described substrate and with described electrical property of substrate and is connected, and described illuminating part is used for luminous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103256317A CN103062671A (en) | 2011-10-24 | 2011-10-24 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103256317A CN103062671A (en) | 2011-10-24 | 2011-10-24 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103062671A true CN103062671A (en) | 2013-04-24 |
Family
ID=48105434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103256317A Pending CN103062671A (en) | 2011-10-24 | 2011-10-24 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103062671A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1908762A (en) * | 2005-08-01 | 2007-02-07 | 安华高科技杰纳勒尔Ip（新加坡）私人有限公司 | Light source for LCD backlight lighting display |
| JP2008107560A (en) * | 2006-10-25 | 2008-05-08 | Funai Electric Co Ltd | Liquid crystal device and liquid crystal display television receiver |
| CN201437941U (en) * | 2009-04-30 | 2010-04-14 | 达运精密工业（苏州）有限公司 | LED backlight module and LCD device |
| US20100271844A1 (en) * | 2009-04-24 | 2010-10-28 | Harvatek Corporation | Light-guiding structure with phosphor material layers |
| TW201044067A (en) * | 2009-06-01 | 2010-12-16 | Chi Mei Optoelectronics Corp | Backlight module and liquid crystal display |
| US20100328923A1 (en) * | 2009-06-25 | 2010-12-30 | Bridgelux, Inc. | Multiple layer phosphor bearing film |
| CN102116443A (en) * | 2010-01-06 | 2011-07-06 | Lg伊诺特有限公司 | Backlight unit and display device using the same |
-
2011
- 2011-10-24 CN CN2011103256317A patent/CN103062671A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1908762A (en) * | 2005-08-01 | 2007-02-07 | 安华高科技杰纳勒尔Ip（新加坡）私人有限公司 | Light source for LCD backlight lighting display |
| JP2008107560A (en) * | 2006-10-25 | 2008-05-08 | Funai Electric Co Ltd | Liquid crystal device and liquid crystal display television receiver |
| US20100271844A1 (en) * | 2009-04-24 | 2010-10-28 | Harvatek Corporation | Light-guiding structure with phosphor material layers |
| CN201437941U (en) * | 2009-04-30 | 2010-04-14 | 达运精密工业（苏州）有限公司 | LED backlight module and LCD device |
| TW201044067A (en) * | 2009-06-01 | 2010-12-16 | Chi Mei Optoelectronics Corp | Backlight module and liquid crystal display |
| US20100328923A1 (en) * | 2009-06-25 | 2010-12-30 | Bridgelux, Inc. | Multiple layer phosphor bearing film |
| CN102116443A (en) * | 2010-01-06 | 2011-07-06 | Lg伊诺特有限公司 | Backlight unit and display device using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160706 Address after: 528437 Guangdong province Zhongshan Torch Development Zone, Cheung Hing Road 6 No. 222 north wing trade building room Applicant after: Yun Chuan intellectual property Services Co., Ltd of Zhongshan city Address before: 518109 Guangdong city of Shenzhen province Baoan District Longhua Town Industrial Zone tabulaeformis tenth East Ring Road No. 2 two Applicant before: Hongfujin Precise Industry (Shenzhen) Co., Ltd. Applicant before: Hon Hai Precision Industry Co., Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130424 |