CN102606940A - Backlight module - Google Patents
Backlight module Download PDFInfo
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- CN102606940A CN102606940A CN2012100308920A CN201210030892A CN102606940A CN 102606940 A CN102606940 A CN 102606940A CN 2012100308920 A CN2012100308920 A CN 2012100308920A CN 201210030892 A CN201210030892 A CN 201210030892A CN 102606940 A CN102606940 A CN 102606940A
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- row
- light
- luminescence unit
- lgp
- circuit board
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Abstract
The invention discloses a backlight module. The backlight module comprises a light guide plate and a stripe-like light source module, wherein the light guide plate has a light emergent surface and a light incident surface; the stripe-like light source module includes a first row of light emitting unit and a second row of light emitting unit; and the first row of light emitting unit and the second row of light emitting unit are arranged close to the light incident surface, so that the light beams emitted by the first row of light emitting unit and the second row of light emitting unit can enter the light guide plate through the light incident surface. According to the invention, the light beams emitted by at least two rows of light emitting unit can be gathered and enter the same light incident surface to improve the incident light intensity of the light guide plate and further to improve the emergent light intensity of the light guide plate. Therefore, the backlight module provided by the invention solves the problem of poor single-side incident light intensity of the light guide plate in the prior art.
Description
Technical field
The present invention refers to a kind of module backlight with strip light source module especially about a kind of module backlight.
Background technology
Module backlight is in order to provide backlight, for different application apparatus utilizations, and liquid crystal panel for example, the light that promptly utilizes control module backlight to provide could pass realizes that image shows.The module backlight that the convention LCD screen uses roughly is divided into two types: marginal ray formula (edge lighting) and straight-down negative (bottom lighting).Because the module thickness backlight of straight-down negative is thicker, makes the LCD screen volume be difficult to dwindle, therefore present common LCD screen uses the module backlight of marginal ray formula more.In the module framework backlight of common marginal ray formula, mostly light source is that single row's spot light forms, light emitting diode for example, and the light of its emission promptly gets into LGP by a side of LGP.Yet when module backlight need provide more high-intensity when backlight, though can use more high-power light emitting diode instead, the volume of High Power LED is also bigger, density is set will descends of light emitting diode, and whole light inlet strength enhancing will be limited; In addition, the cooling mechanism of High Power LED also will influence the volume that quantity and entire aphototropism mould are set of High Power LED.Again, if be employed in other side of LGP configured light sources also is set, can increases though then get into the light intensity of LGP, the volume of entire aphototropism mould also increases, and the complexity of the wiring of whole light source module and fixed structure will significantly increase.
Summary of the invention
Therefore, one of the object of the invention is to provide a kind of module backlight, compiles at least two light launched of row's luminescence units and gets into same light incident sides, promoting the luminous intensity of going into of LGP, and then also promotes the luminous intensity that of module backlight.
Module backlight of the present invention comprises LGP and strip light source module.This LGP has exiting surface and light incident sides.This strip light source module comprises first row's luminescence unit and second row's luminescence unit; This first row's luminescence unit and contiguous this light incident sides of this second row luminescence unit are provided with; And the light-emitting area of this first row's luminescence unit and this second row luminescence unit makes the light of this first row's luminescence unit and this second row emitted can pass this light incident sides to get in this LGP all towards the light incident sides of this LGP.
In an embodiment of module backlight of the present invention, this LGP has reflecting surface, is provided with respect to this exiting surface, and this light incident sides is adjacent between this exiting surface and this reflecting surface.This strip light source module comprises first circuit board and second circuit board, and this first row's luminescence unit and this second row luminescence unit are arranged at respectively on this first circuit board and this second circuit board.
In a specific embodiment of module backlight of the present invention, this strip light source module comprises radiating piece, and this first circuit board and this second circuit board are attached on this radiating piece.And this first circuit board and this second circuit board laterally arrange.This light incident sides comprises first plane and second plane, this first row luminescence unit and this second row's luminescence unit respectively to should first plane and this second plane be provided with.
In another specific embodiment of module backlight of the present invention, this first plane and this non-copline in second plane.
In a preferred embodiment of module backlight of the present invention, this luminescence unit is the side-lighting type light-emitting diode unit.
In a preferred embodiment of module backlight of the present invention, this first row's luminescence unit and this second row luminescence unit laterally arrange.
In a preferred embodiment of module backlight of the present invention, the distance between this first row's luminescence unit and this second row luminescence unit is less than the height of this LGP incidence surface.
By this, the present invention can promote the luminous intensity of going into of this LGP, and the going out luminous intensity and can promote thereupon of this LGP solves the problem of the one-sided light inlet undercapacity of LGP in the prior art.
Can graphicly further be understood by following detailed Description Of The Invention and appended about advantage of the present invention and spirit.
Description of drawings
Fig. 1 is the sketch map according to the module backlight of preferred embodiment of the present invention.
Fig. 2 is the profile of module backlight X-X along the line among Fig. 1.
Fig. 3 is the profile of module backlight according to another embodiment of the present invention.
Fig. 4 has heterogeneous light vertical view for the luminescence unit of module backlight among Fig. 1.
The specific embodiment
See also Fig. 1 and Fig. 2, Fig. 1 is the sketch map according to the module backlight 1 of preferred embodiment of the present invention, and Fig. 2 is the profile of module 1 backlight along Fig. 1 center line X-X.Module 1 backlight comprises Metal Substrate shell on the back group 12 and is arranged at LGP 14, strip light source module 16 (being represented by dotted lines among Fig. 1) and the radiating piece 18 on the Metal Substrate shell on the back group 12.LGP 14 has exiting surface 142 and light incident sides 144.Strip light source module 16 comprises first circuit board 162, second circuit board 164, first row's luminescence unit 166 and second row's luminescence unit 168; First row's luminescence unit 166 and second row's luminescence unit 168 are arranged parallel to each other and are arranged at respectively on first circuit board 162 and the second circuit board 164; First circuit board 162 and second circuit board 164 are relatively arranged on the radiating piece 18; 18 of radiating pieces are close to Metal Substrate shell on the back group 12; Make the row's of winning luminescence unit 166 and second row's luminescence unit, 168 contiguous light incident sides 144; And the distance between first row's luminescence unit 166 and the second row's luminescence unit 168 is less than the height of light incident sides 144; (height of light incident sides 144 is meant the distance between exiting surface 142 and the reflecting surface 146) as shown in Figure 2; So the light (being shown among Fig. 2 with arrow) of first row's luminescence unit 166 and second row's luminescence unit 168 emission can pass light incident sides 144 to get in the LGP 14,, solve the problem of the one-sided light inlet undercapacity of LGP in the prior art to promote the luminous intensity of going into of LGP 14.In addition, the heat of first row's luminescence unit 166 and second row's luminescence unit 168 generation in running can be via radiating piece 18,12 dissipations of Metal Substrate shell on the back group.
In addition, LGP 14 has reflecting surface 146, is provided with respect to exiting surface 142, and light incident sides 144 is adjacent between exiting surface 142 and the reflecting surface 146, and reflecting surface 146 can reflect light in the LGP 14 with towards exiting surface 142.In the present embodiment, reflecting surface 146 is realized by on LGP 14 surfaces, pasting reflectance coating or being coated with one deck reflecting material 20.Again; Radiating piece 18 forms ㄈ shaped sections groove; First circuit board 162 and second circuit board 164 are set in parallel in this groove; First row's luminescence unit 166, second is arranged luminescence unit 168 and is side-light type (side-view) light emitting diode, and is arranged between first circuit board 162 and the second circuit board 164, so can make full use of light incident sides 144 to get in the LGP 14 from the light of first row's luminescence unit 166 and 168 emissions of second row's luminescence unit.But the present invention is not as limit.
In previous embodiment, light incident sides 144 is the plane, but the present invention is not as limit.See also Fig. 3, it is the profile of module backlight 3 according to another embodiment of the present invention.Module 3 backlight comprises Metal Substrate shell on the back group 32 and is arranged at LGP 34, strip light source module 36 and the radiating piece 38 on the Metal Substrate shell on the back group 32.Module 3 each assembly backlight be provided with the relation with module 1 each assembly backlight be provided with the relation roughly the same, so repeat no more in this, below only with regard to the difference explanation.
The light incident sides 344 of LGP 34 comprises the non-coplanar first plane 344a and the second plane 344b; Corresponding first plane 344a and the second plane 344b setting respectively of first row's luminescence unit 366 of strip light source module 36 and second row's luminescence unit 368; Make the light (being shown among Fig. 3) of the row's of winning luminescence unit 366 and second row's luminescence unit 368 emission can pass light incident sides 344 getting in the LGP 34, penetrate LGPs 34 via the exiting surface 342 of LGP 34 more at last with arrow.The profile of radiating piece 38 cooperates light incident sides 344; Make strip light source module 36 first circuit board 362 and second circuit board 364 and on first row's luminescence unit 366 and second row's luminescence unit 368 can be provided with over against the first plane 344a and the second plane 344b; So in present embodiment, it is forward formula (top-view) light emitting diode that first row's luminescence unit 366, second is arranged luminescence unit 368.Likewise; The light that row's luminescence units were launched more than module 3 backlight also can compile gets into same light incident sides 344; Promoting the luminous intensity of going into of LGP 34, the going out luminous intensity and can promote thereupon of LGP 34 solved the problem of the one-sided light inlet undercapacity of LGP in the prior art.
In aforementioned each embodiment, first row's luminescence unit 166 and 366, second row's luminescence unit 168 and 368 can be the monochromatic light light emitting diode, white light for example, but the present invention is not as limit.See also Fig. 4, it is that first row's luminescence unit 166 has heterogeneous light vertical view.First row's luminescence unit 166 comprises encapsulation main body 1662 and three luminescence chips 1664; Encapsulation main body 1662 has three groove 1662a; Luminescence chip 1664 is packaged in respectively among the groove 1662a; Luminescence chip 1664 is launched different color light respectively, for example ruddiness, green glow and blue light, but the present invention is not as limit.By this, it is luminous that strip light source module 16 can be controlled each luminescence chip 1664, makes LGP 14 that the backlight of different colours can be provided, and in lcd applications, liquid crystal panel can save the structure of traditional optical filter, reduces the loss of display brightness.First row's luminescence unit 168, second is arranged luminescence unit 366 and 368 also together, does not give unnecessary details in addition.
Like above stated specification, the present invention can compile at least two light launched of row's luminescence units and get into same light incident sides, promoting the luminous intensity of going into of this LGP, and the going out luminous intensity and can promote thereupon of this LGP.In addition; When strip light source module of the present invention adopts the side-lighting type light-emitting unit; The capable flat setting of circuit board can effectively utilize the side space of LGP; Exiting surface to avoid the outstanding LGP of strip light source module is too much, helps module backlight and is installed in the existing apparatus configuration, reduces the cost of design alteration and the change of device appearance.
The above is merely preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. module backlight is characterized in that this module backlight comprises:
LGP has exiting surface and light incident sides; And
Strip light source module; Comprise first row's luminescence unit and second row's luminescence unit; This first row's luminescence unit and contiguous this light incident sides of this second row luminescence unit are provided with; And the light-emitting area of this first row's luminescence unit and this second row luminescence unit makes the light of this first row's luminescence unit and this second row emitted can pass this light incident sides to get in this LGP all towards the light incident sides of this LGP.
2. module backlight as claimed in claim 1 is characterized in that this strip light source module comprises first circuit board and second circuit board, and this first row's luminescence unit and this second row luminescence unit are arranged at respectively on this first circuit board and this second circuit board.
3. module backlight as claimed in claim 2 is characterized in that this strip light source module comprises radiating piece, and this first circuit board and this second circuit board are attached on this radiating piece.
4. module backlight as claimed in claim 2 is characterized in that this light incident sides comprises first plane and second plane, this first row luminescence unit and this second row's luminescence unit respectively to should first plane and this second plane be provided with.
5. module backlight as claimed in claim 4 is characterized in that this first plane and this non-copline in second plane.
6. module backlight as claimed in claim 2 is characterized in that this first circuit board and this second circuit board laterally arrange.
7. module backlight as claimed in claim 6 is characterized in that this luminescence unit is the side-lighting type light-emitting diode unit.
8. module backlight as claimed in claim 1 is characterized in that this LGP has reflecting surface, is provided with respect to this exiting surface, and this light incident sides is adjacent between this exiting surface and this reflecting surface.
9. module backlight as claimed in claim 1 is characterized in that this first row's luminescence unit and this second row luminescence unit laterally arrange.
10. module backlight as claimed in claim 9 is characterized in that this first row luminescence unit and this second arrange distance between the luminescence unit less than the height of this LGP incidence surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100308920A CN102606940A (en) | 2012-02-13 | 2012-02-13 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100308920A CN102606940A (en) | 2012-02-13 | 2012-02-13 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102606940A true CN102606940A (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100308920A Pending CN102606940A (en) | 2012-02-13 | 2012-02-13 | Backlight module |
Country Status (1)
| Country | Link |
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| CN (1) | CN102606940A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767768A (en) * | 2012-08-08 | 2012-11-07 | 深圳市华星光电技术有限公司 | Side-light type backlight module and LCD (liquid crystal display) |
| CN103899979A (en) * | 2012-12-25 | 2014-07-02 | 深鑫成光电（深圳）有限公司 | Light source module, backlight module and liquid crystal display device |
| CN105700231A (en) * | 2016-02-04 | 2016-06-22 | 友达光电股份有限公司 | Light source module |
| CN108506790A (en) * | 2018-02-07 | 2018-09-07 | 苏州佳世达电通有限公司 | Backlight module and apply its display device |
| CN108897168A (en) * | 2018-07-24 | 2018-11-27 | 苏州佳世达电通有限公司 | Display device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060044839A1 (en) * | 2004-08-27 | 2006-03-02 | Seong-Sik Choi | Backlight assembly including a buffered lamp holder for impact absorption and display apparatus having the same |
| CN101051148A (en) * | 2006-04-07 | 2007-10-10 | 扬昕精密股份有限公司 | Back light module |
| CN101377589A (en) * | 2007-08-27 | 2009-03-04 | 奇美电子股份有限公司 | Backlight module unit and LCD device using the same |
| CN101504125A (en) * | 2008-02-04 | 2009-08-12 | 北京京东方光电科技有限公司 | Back light source |
| CN201352288Y (en) * | 2008-12-13 | 2009-11-25 | 福建捷联电子有限公司 | Light guide plate of liquid crystal display backlight module and backlight module utilizing same |
| CN101893785A (en) * | 2010-06-25 | 2010-11-24 | 深圳创维－Rgb电子有限公司 | Method for implementing backlight of liquid display |
| CN201827784U (en) * | 2010-10-28 | 2011-05-11 | 京东方科技集团股份有限公司 | Backlight source and liquid crystal display device |
| CN102121606A (en) * | 2010-12-03 | 2011-07-13 | 友达光电股份有限公司 | Light-emitting unit and backlight module |
-
2012
- 2012-02-13 CN CN2012100308920A patent/CN102606940A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060044839A1 (en) * | 2004-08-27 | 2006-03-02 | Seong-Sik Choi | Backlight assembly including a buffered lamp holder for impact absorption and display apparatus having the same |
| CN101051148A (en) * | 2006-04-07 | 2007-10-10 | 扬昕精密股份有限公司 | Back light module |
| CN101377589A (en) * | 2007-08-27 | 2009-03-04 | 奇美电子股份有限公司 | Backlight module unit and LCD device using the same |
| CN101504125A (en) * | 2008-02-04 | 2009-08-12 | 北京京东方光电科技有限公司 | Back light source |
| CN201352288Y (en) * | 2008-12-13 | 2009-11-25 | 福建捷联电子有限公司 | Light guide plate of liquid crystal display backlight module and backlight module utilizing same |
| CN101893785A (en) * | 2010-06-25 | 2010-11-24 | 深圳创维－Rgb电子有限公司 | Method for implementing backlight of liquid display |
| CN201827784U (en) * | 2010-10-28 | 2011-05-11 | 京东方科技集团股份有限公司 | Backlight source and liquid crystal display device |
| CN102121606A (en) * | 2010-12-03 | 2011-07-13 | 友达光电股份有限公司 | Light-emitting unit and backlight module |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767768A (en) * | 2012-08-08 | 2012-11-07 | 深圳市华星光电技术有限公司 | Side-light type backlight module and LCD (liquid crystal display) |
| CN103899979A (en) * | 2012-12-25 | 2014-07-02 | 深鑫成光电（深圳）有限公司 | Light source module, backlight module and liquid crystal display device |
| CN105700231A (en) * | 2016-02-04 | 2016-06-22 | 友达光电股份有限公司 | Light source module |
| CN108506790A (en) * | 2018-02-07 | 2018-09-07 | 苏州佳世达电通有限公司 | Backlight module and apply its display device |
| CN108506790B (en) * | 2018-02-07 | 2020-01-24 | 苏州佳世达电通有限公司 | Backlight module and display device using same |
| CN108897168A (en) * | 2018-07-24 | 2018-11-27 | 苏州佳世达电通有限公司 | Display device |
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Application publication date: 20120725 |