CN102900995A - Backlight module - Google Patents
Backlight module Download PDFInfo
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- CN102900995A CN102900995A CN2011102133150A CN201110213315A CN102900995A CN 102900995 A CN102900995 A CN 102900995A CN 2011102133150 A CN2011102133150 A CN 2011102133150A CN 201110213315 A CN201110213315 A CN 201110213315A CN 102900995 A CN102900995 A CN 102900995A
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- light
- light source
- lgp
- backlight module
- reflector plate
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Abstract
A backlight module comprises a light source, a reflector plate, a light guide plate and a reflector. The reflector plate is provided with a first surface and an opposite second surface, and a plurality of microstructures are formed on the first surface. The light guide plate is formed by coating and curing photo-curing optical materials on the first surface of the reflector plate, and comprises an incident portion and a platy emergent portion, the incident portion is close to the light source, the platy emergent portion extends from one side of the incident portion, the thickness of the emergent portion is smaller than that of the light source, the incident portion is provided with a third surface and an opposite fourth surface, and third surface is combined with the first surface of the reflector plate. The reflector covers the light source and the fourth surface of the incident portion of the light guide plate, and the vertical distance from the reflector to the reflector plate is gradually reduced in a direction from the light source to the emergent portion. The backlight module has the advantage that the luminance of the backlight module is increased.
Description
Technical field
The present invention relates to a kind of backlight module.
Background technology
Liquid crystal panel is applied in now the life widely, because liquid crystal panel itself is not luminous, so generally adopt backlight module that the liquid crystal panel light source is provided, backlight module is because the direction of light source incident can be divided into down straight aphototropism mode set and side-light backlight module again.
And in the side-light backlight module, LGP is the key component in the backlight module, its role is to directing light.At present backlight module develops towards slimming, so be respectively to research and develop the direction that factory makes great efforts at present with the thickness attenuation of LGP.But, in the time of with the LGP attenuation, also be the incidence surface attenuation with LGP, along with entering tailing off of light quantity, so that the problem that must descend in the face of the LGP briliancy, so how light source is effectively utilized and imports LGP after the slimming, be must thinking and solve.
Summary of the invention
The object of the present invention is to provide a kind of backlight module that more effectively utilizes that light source is done.
For achieving the above object, backlight module of the present invention comprises: a light source, a reflector plate, a LGP and a reflecting element.This reflector plate has a first surface second surface opposite with that is formed with a plurality of micro-structurals.This LGP is that the first surface that the photo-curable optical material is coated this reflector plate solidify to form, this LGP comprises light in part and the tabular light out part from this light in part one side extension near this light source, and the thickness of this light out part is less than the thickness of this light source, this light in part have one with the 3rd surface and the 4th an opposite surface of this reflector plate first surface combination.This reflecting element covers on the 4th surface of the light in part of this light source and this LGP, and this reflecting element apart from the height of this reflector plate by dwindling gradually towards this light out part near this light source.
Preferably, the thickness of close this light source one side of the light in part of this LGP is greater than the thickness near this light out part one side.
Preferably, this LGP light in part equals the thickness of this light source near the thickness of a side of this light source, and the whole wedgewise of this light in part.
Preferably, this reflecting element is arc shape or skewed.
Preferably, this reflecting element is the lampshade that an internal layer can be reflective, and is located at least part of second surface of this light source and reflector plate.
Preferably, this reflecting element also can be the reflecting plate that one deck high reflectance material is made.
The present invention's effect is: utilize the design of light in part and the reflecting element of LGP, make entering in the LGP that light source can try one's best, and reach the effect that whole LGP briliancy promotes.
Description of drawings
Fig. 1 is a schematic diagram, and the first preferred embodiment of backlight module of the present invention is described;
Fig. 2 is a schematic diagram, and the second preferred embodiment of backlight module of the present invention is described;
Fig. 3 is a schematic diagram, and the 3rd preferred embodiment of backlight module of the present invention is described;
Fig. 4 is a schematic diagram, and the 4th preferred embodiment of backlight module of the present invention is described.
The specific embodiment
The present invention is described in detail below in conjunction with drawings and Examples.
Before the present invention is described in detail, be noted that in the following description content, similarly assembly is to represent with identical numbering.
Consult Fig. 1, the preferred embodiment of backlight module of the present invention comprises a light source 1, a reflector plate 2, a LGP 3, a reflecting element 4 and a blooming group 5.
This reflector plate 2 is made for foaming type PET (MCPET), and has first surface 21 second surface 22 opposite with that is formed with a plurality of micro-structurals 211.
The first surface 21 that this LGP 3 is coated this reflector plate 2 for the photo-curable optical material solidify to form, and LGP 3 comprises light in part 31 and the tabular light out part 32 from the extension of light in part 31 1 sides near light source 1.This light in part 31 have one with 311 and one opposite the 4th surface 312, the 3rd surface of reflector plate 2 first surfaces 21 combinations.Because LGP 3 is to utilize coating photo-curable optical material and solidify rear formation, therefore is convenient to control thickness and shape.The design of the present embodiment is to make the thickness of the light out part of LGP 3 32 less than the thickness of light source 1, light in part 31 equals the thickness of this light source 1 near a side thickness of light source 1, and the thickness of LGP 3 light in part 31 dwindles gradually towards light out part 32, makes light in part 31 whole wedgewises.
Reflecting element 4 covers on the 4th surface 312 of the light in part 31 of this light source 1 and this LGP 3.The reflecting element 4 of the present embodiment is that an internal layer can be reflective and be located at the lampshade of the part second surface 22 of this light source 1 and reflector plate 2, for example: made by a metal cover body and a reflecting layer.Certainly, this lampshade also can be looked product design and be different, for example the complete second surface 22 that is located at light source 1 and reflector plate 2.Reflecting element 4 cover part on light in part 31 the 4th surface 312 of this LGP 3, height apart from reflector plate 2 is dwindled towards light out part 32 gradually by close light source 1, form arc shape, its main purpose is to advance the light in part 31 of LGP 3 for the light usable reflection that light source 1 can be sent, and the larger effect of radius of curvature of reflecting element 4 cambered surfaces is better in the present embodiment.
This blooming group 5 is the combination of diffusion sheet, prismatic lens etc. blooming, and is installed on the light out part 32 of LGP 3, and it makes light that light source 1 sends after LGP 3 conduction with meaning, and the optical uniformity of sending from light out part 32 is better and brightness is better.
Reduce in order to satisfy the demand of LGP 3 attenuation, may reduce the briliancy that makes backlight module into light quantity.By the design of the present embodiment, the light that light source 1 sends can fully enter LGP 3 light in part 31, adds reflecting element 4 and guarantees that light reflection enters LGP 3, and the light quantity that enters that enters LGP 3 is increased, thereby has increased the briliancy of backlight module.
Consult Fig. 2, the difference of the present invention's the second preferred embodiment and the first preferred embodiment is, the thickness of the light in part 31 of LGP 3 is of uniform thickness with light out part 32, mainly guarantees that light reflection enters LGP 3 and improves and enter light quantity by reflecting element 4.
Consult Fig. 3, the difference of the present invention's the 3rd preferred embodiment and the first preferred embodiment is, reflecting element 4 is not that internal layer can be reflective and be located at the lampshade of the second surface 22 of this light source 1 and reflector plate 2, but the reflecting plate that one deck is made with PET (PET) high reflectance material directly is attached at the upper surface of the light in part 31 of LGP 3.
Consult Fig. 4, the difference of the present invention's the 4th preferred embodiment and the 3rd preferred embodiment is, the thickness of the light in part 31 of the LGP 3 of the present embodiment is of uniform thickness with light out part 32, and the light in part 31 whole wedgewises of the 3rd preferred embodiment LGP 3, reflecting element 4 is to be attached on the LGP 3 among the 3rd embodiment in addition, and reflecting element 4 is skewed and is not attached on the LGP 3 among the 4th embodiment.
In sum, the light that light source 1 sends increases the light quantity that enters that enters LGP 3 light out part 32, and has increased the briliancy of backlight module, so really can reach purpose of the present invention because reflecting element 4 is added in the design of LGP 3 light in part 31.
Claims (6)
1. a backlight module comprises a light source, a reflector plate, a LGP and a reflecting element, it is characterized in that:
This reflector plate has a first surface second surface opposite with that is formed with a plurality of micro-structurals;
This LGP, the first surface of coating this reflector plate for the photo-curable optical material solidify to form, this LGP comprises light in part and the tabular light out part from this light in part one side extension near this light source, and the thickness of this light out part is less than the thickness of this light source, this light in part have one with the 3rd surface and the 4th an opposite surface of this reflector plate first surface combination;
This reflecting element covers in the 4th surface of the light in part of this light source and this LGP, and this reflecting element apart from the height of this reflector plate by dwindling gradually towards this light out part near this light source.
2. backlight module according to claim 1 is characterized in that: the light in part of this LGP near the thickness of this light source one side greater than the thickness near this light out part one side.
3. backlight module according to claim 2 is characterized in that: this LGP light in part equals the thickness of this light source near the thickness of a side of this light source, and the whole wedgewise of this light in part.
4. the described backlight module of arbitrary claim in 3 according to claim 1, it is characterized in that: this reflecting element is arc shape or skewed.
5. backlight module according to claim 4, it is characterized in that: this reflecting element is the lampshade that an internal layer can be reflective, and is located at least part of second surface of this light source and reflector plate.
6. backlight module according to claim 4, it is characterized in that: this reflecting element is the reflecting plate that one deck high reflectance material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102133150A CN102900995A (en) | 2011-07-28 | 2011-07-28 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102133150A CN102900995A (en) | 2011-07-28 | 2011-07-28 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102900995A true CN102900995A (en) | 2013-01-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102133150A Pending CN102900995A (en) | 2011-07-28 | 2011-07-28 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102900995A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015027623A1 (en) * | 2013-08-27 | 2015-03-05 | 北京京东方光电科技有限公司 | Light guide plate and manufacturing method therefor, backlight module and display device |
| CN106352304A (en) * | 2016-10-19 | 2017-01-25 | 武汉华星光电技术有限公司 | Light guide plate structure and backlight module |
| CN113466987A (en) * | 2021-07-20 | 2021-10-01 | 拓米(成都)应用技术研究院有限公司 | Light guide plate structure and preparation method thereof |
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| US20050259939A1 (en) * | 2004-04-30 | 2005-11-24 | Kari Rinko | Ultra thin lighting element |
| CN1873505A (en) * | 2005-05-31 | 2006-12-06 | 三星电子株式会社 | Backlight assembly and liquid crystal display having the same |
| CN101226304A (en) * | 2007-01-17 | 2008-07-23 | 株式会社日立显示器 | Liquid crystal display module |
| CN201210211Y (en) * | 2008-06-16 | 2009-03-18 | 亚通光电科技(深圳)有限公司 | Back light module having wedge light conducting structure |
| JP2009140685A (en) * | 2007-12-05 | 2009-06-25 | Sharp Corp | Backlight unit and liquid crystal display device |
| CN201779541U (en) * | 2010-04-14 | 2011-03-30 | 比亚迪股份有限公司 | Back light module structure |
| CN102121639A (en) * | 2010-12-08 | 2011-07-13 | 友达光电股份有限公司 | Backlight module and assembling method thereof |
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2011
- 2011-07-28 CN CN2011102133150A patent/CN102900995A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050259939A1 (en) * | 2004-04-30 | 2005-11-24 | Kari Rinko | Ultra thin lighting element |
| CN1873505A (en) * | 2005-05-31 | 2006-12-06 | 三星电子株式会社 | Backlight assembly and liquid crystal display having the same |
| CN101226304A (en) * | 2007-01-17 | 2008-07-23 | 株式会社日立显示器 | Liquid crystal display module |
| JP2009140685A (en) * | 2007-12-05 | 2009-06-25 | Sharp Corp | Backlight unit and liquid crystal display device |
| CN201210211Y (en) * | 2008-06-16 | 2009-03-18 | 亚通光电科技(深圳)有限公司 | Back light module having wedge light conducting structure |
| CN201779541U (en) * | 2010-04-14 | 2011-03-30 | 比亚迪股份有限公司 | Back light module structure |
| CN102121639A (en) * | 2010-12-08 | 2011-07-13 | 友达光电股份有限公司 | Backlight module and assembling method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015027623A1 (en) * | 2013-08-27 | 2015-03-05 | 北京京东方光电科技有限公司 | Light guide plate and manufacturing method therefor, backlight module and display device |
| CN106352304A (en) * | 2016-10-19 | 2017-01-25 | 武汉华星光电技术有限公司 | Light guide plate structure and backlight module |
| CN113466987A (en) * | 2021-07-20 | 2021-10-01 | 拓米(成都)应用技术研究院有限公司 | Light guide plate structure and preparation method thereof |
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Application publication date: 20130130 |