CN102679271A - Light guide diffusion plate and LED (light-emitting diode) plane light source - Google Patents
Light guide diffusion plate and LED (light-emitting diode) plane light source Download PDFInfo
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- CN102679271A CN102679271A CN2012101542446A CN201210154244A CN102679271A CN 102679271 A CN102679271 A CN 102679271A CN 2012101542446 A CN2012101542446 A CN 2012101542446A CN 201210154244 A CN201210154244 A CN 201210154244A CN 102679271 A CN102679271 A CN 102679271A
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Abstract
The invention discloses a light guide diffusion plate and an LED (light-emitting diode) plane light source. The light guide diffusion plate provided by the invention comprises a diffusion layer and a light guide layer which are integrated, and is formed by co-extruding the traditional diffusion plate and the traditional light guide plate once by adopting a dual-layer co-extruding process. The LED plane light source provided by the invention comprises a reflection plate, an LED light-emitting source and the light guide diffusion plate. Because the light guide diffusion plate is integrally formed once by the diffusion layer and the light guide layer through the dual-layer co-extruding process, the material forming process is simplified, the subsequence assembling process is simplified, the production time is shortened, the production efficiency is improved, and thus the cost is lowered.
Description
Technical field
The invention belongs to photoelectric field, be specifically related to a kind of can be used for throwing light on or the improvement structure of the LGP of display backlight module and use this improvement after the LED planar light source that line source is converted into area source of LGP.
Background technology
By extensive popularization, the application of LED lamp aspect normal lighting and display in recent years more and more widely with advantages such as its power saving, brightness height, long service life, anti-seismic performance are good for LED (Light Emitting Diode, light emitting diode) technology.Commonplace utilization like the LED lamp panel; Promptly in a lampshade, be array-like a plurality of LED lamp holders of arranging; And the corresponding driving circuit is set in lampshade, though this structure is simple and practical, the LED lamp panel adopts straight-down negative led light source form; More dazzling, the light uniformity of sending not good (uniformity is less than 70%).So; There is the dealer to develop one type of LED plane lamp; The be square parts of plane and the inside of such LED plane lamp also all are plane, mainly are reflecting plate, LGP and the diffuser plates of mounting plane shape successively in a rectangular base, and in base and in the side edge of LGP, LED lamp bar are installed; Light reaches the purpose that improves the uniformity through repeatedly reflecting under the acting in conjunction of reflecting plate and LGP, and effectively prevents dazzle through diffuser plate.Can know by said structure and principle; The core of this type LED plane lamp is that the effect through LGP is converted into area source with line source, and prevents dazzle through diffuser plate, and the LGP of prior art is acrylic (PMMA) sheet material that utilizes optical grade; Then with having the high reflectivity and the printing ink of extinction not; Leaded light point in the printing of the acrylic sheet material bottom surface of optical grade, the light that utilizes optical grade acrylic sheet material to draw to send from lamp is in the stop on optical grade acrylic sheet material surface, when light is mapped to each leaded light point; Reverberation can destroy conditioned reflex and penetrate by LGP is positive toward all angles diffusion then.Through various densitys, leaded light point not of uniform size, can make the LGP uniformly light-emitting.The LGP of prior art and diffuser plate are two blocks of separate sheet materials processing separately separately, are respectively through the injection machine extrusion molding.By on can know that the material layer that is adopted in the structure of the LED plane lamp of prior art is more, processing is loaded down with trivial details, therefore make the cost of whole LED plane lamp higher.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of light guide diffusion board and have the LED planar light source of this light guide diffusion board, simplify the moulding and assembling processing procedure of material layer, and then reached the purpose that reduces cost.
The present invention for the technical scheme that solves its technical problem and adopt is:
A kind of light guide diffusion board is made up of optical waveguide layer and diffusion layer, and it is said light guide diffusion board that said optical waveguide layer and diffusion layer go out the technology one-shot forming through double-layer coextrusion.
Said optical waveguide layer is a clarity plastic layer, and said diffusion layer is clarity plastic layer or opaque plastics layer.
The one side that said light guide diffusion board has optical waveguide layer is that the back side and the one side with diffusion layer are positive, can be that the back up of said light guide diffusion board has some leaded light points.
The one side that said light guide diffusion board has optical waveguide layer is that the back side and the one side with diffusion layer are positive, can be provided with hyaline membrane, and said hyaline membrane is printed with some leaded light points, and said hyaline membrane is attached at the back side of said light guide diffusion board.
A kind of LED planar light source with light guide diffusion board; Comprise reflecting plate, light guide diffusion board and LED light emitting source; Said light guide diffusion board is made up of optical waveguide layer and diffusion layer, and it is said light guide diffusion board that said optical waveguide layer and diffusion layer go out the technology one-shot forming through double-layer coextrusion, and said reflector plate has two relative surfaces and is respectively reflecting surface and the back side; The superimposed side that has reflecting surface in said reflecting plate of said light guide diffusion board; The one side that said light guide diffusion board is relative with said reflecting plate is the back side, has some leaded light points on the back side of said light guide diffusion board or the reflecting surface of said reflecting plate, and said LED light emitting source is positioned at the side edge of said optical waveguide layer.
Said optical waveguide layer is a clarity plastic layer, and said diffusion layer is clarity plastic layer or opaque plastics layer.
Said some leaded light points can be printed in the back side of said light guide diffusion board.
Can be provided with hyaline membrane, said some leaded light points are printed in said hyaline membrane, and said hyaline membrane is attached at the back side of said light guide diffusion board.
Said some leaded light points can also be printed in the reflecting surface of said reflecting plate.
Can also be provided with base plate and frame, said base plate is superimposed in the back side of said reflecting plate, and all in side edge was fixed in said frame, said LED light emitting source was arranged in the said frame for said base plate, reflecting plate and light guide diffusion board.
The invention has the beneficial effects as follows: the present invention goes out technology with traditional diffuser plate and the light guide diffusion board of LGP coextrusion simultaneously one-shot forming for being made up of diffusion layer and optical waveguide layer one through double-layer coextrusion; Not only simplified forming materials technology; And simplified follow-up assembling procedure; Shorten the production time, improved production efficiency, thereby reduced cost.
Description of drawings
Fig. 1 is the light guide diffusion board structural representation of the embodiment of the invention 1;
Fig. 2 is the light guide diffusion board structural representation of the embodiment of the invention 2;
Fig. 3 is the LED flat light source structure sketch map with light guide diffusion board of the embodiment of the invention 3;
Fig. 4 is the LED flat light source structure sketch map with light guide diffusion board of the embodiment of the invention 4;
Fig. 5 is the LED flat light source structure sketch map with light guide diffusion board of the embodiment of the invention 5.
The specific embodiment
Below through specific instantiation the specific embodiment of the present invention is described, those skilled in the art can understand advantage of the present invention and effect easily by the content that this specification disclosed.The present invention also can other different mode implement, and, not being contrary under disclosed category, can give different modifications and change that is.
Embodiment 1: a kind of light guide diffusion board 100, constitute by optical waveguide layer 11 and diffusion layer 12, and it is said light guide diffusion board that said optical waveguide layer and diffusion layer go out the technology one-shot forming through double-layer coextrusion, specifically can produce through equipment such as double-layer coextrusion plastics extruders.
Said optical waveguide layer is a clarity plastic layer, and said diffusion layer is clarity plastic layer or opaque plastics layer.
The one side that said light guide diffusion board has optical waveguide layer is that the back side and the one side with diffusion layer are the front, and the back up of said light guide diffusion board has some leaded light points 13.
Embodiment 2: a kind of light guide diffusion board 200, constitute by optical waveguide layer 21 and diffusion layer 22, and it is said light guide diffusion board that said optical waveguide layer and diffusion layer go out the technology one-shot forming through double-layer coextrusion.
Said optical waveguide layer is a clarity plastic layer, and said diffusion layer is clarity plastic layer or opaque plastics layer.
The one side that said light guide diffusion board has optical waveguide layer is that the back side and the one side with diffusion layer are positive, is provided with hyaline membrane 23, and said hyaline membrane is printed with some leaded light points 231, and said hyaline membrane is attached at the back side of said light guide diffusion board.
Embodiment 3: a kind of LED planar light source 300 with light guide diffusion board; Comprise reflecting plate 31, light guide diffusion board 32 and LED light emitting source 33; Said light guide diffusion board is made up of optical waveguide layer 321 and diffusion layer 322; It is said light guide diffusion board that said optical waveguide layer and diffusion layer go out the technology one-shot forming through double-layer coextrusion; Said reflector plate has two relative surfaces and is respectively reflecting surface and the back side, and said light guide diffusion board is superimposed to have a side of reflecting surface in said reflecting plate, and the one side that said light guide diffusion board is relative with said reflecting plate is the back side; The back up of said light guide diffusion board has some leaded light points 323, and said LED light emitting source is positioned at the side edge of said optical waveguide layer.
Said optical waveguide layer is a clarity plastic layer, and said diffusion layer is clarity plastic layer or opaque plastics layer.
Also be provided with base plate 34 and frame 35, said base plate is superimposed in the back side of said reflecting plate, and all in side edge was fixed in said frame, said LED light emitting source was arranged in the said frame for said base plate, reflecting plate and light guide diffusion board.Certainly, also said base plate can be set, the intensity of visual reflex plate and deciding can be omitted said base plate when the intensity of reflecting plate is suitable.
Preferably, except the medial surface that is provided with the LED light emitting source, all the other inboards all are provided with reflector plate in the inboard of said frame, and reflector plate is used to increase the service efficiency of light, prevent that light from being absorbed by frame.
Embodiment 4: a kind of LED planar light source 400 with light guide diffusion board; Comprise reflecting plate 41, light guide diffusion board 42 and LED light emitting source 43; Said light guide diffusion board is made up of optical waveguide layer 421 and diffusion layer 422, and it is said light guide diffusion board that said optical waveguide layer and diffusion layer go out the technology one-shot forming through double-layer coextrusion, and said reflector plate has two relative surfaces and is respectively reflecting surface and the back side; The superimposed side that has reflecting surface in said reflecting plate of said light guide diffusion board; Said LED light emitting source is positioned at the side edge of said optical waveguide layer, and the one side that said light guide diffusion board is relative with said reflecting plate is the back side, is provided with hyaline membrane 423; Said hyaline membrane is printed with some leaded light points 4231, and said hyaline membrane is attached at the back side of said light guide diffusion board.
Said optical waveguide layer is a clarity plastic layer, and said diffusion layer is clarity plastic layer or opaque plastics layer.
Also be provided with frame 45, all in side edge was fixed in said frame, said LED light emitting source was arranged in the said frame for said reflecting plate and light guide diffusion board.When the intensity of reflecting plate was suitable, present embodiment was not provided with base plate.
Preferably, except the medial surface that is provided with the LED light emitting source, all the other inboards all are provided with reflector plate in the inboard of said frame, and reflector plate is used to increase the service efficiency of light, prevent that light from being absorbed by frame.
Embodiment 5: a kind of LED planar light source 500 with light guide diffusion board; Comprise reflecting plate 51, light guide diffusion board 52 and LED light emitting source 53; Said light guide diffusion board is made up of optical waveguide layer 521 and diffusion layer 522; It is said light guide diffusion board that said optical waveguide layer and diffusion layer go out the technology one-shot forming through double-layer coextrusion, and said reflector plate has two relative surfaces and is respectively reflecting surface and the back side, the superimposed side that has reflecting surface in said reflecting plate of said light guide diffusion board; Said LED light emitting source is positioned at the side edge of said optical waveguide layer, is printed with some leaded light points 511 on the reflecting surface of said reflecting plate 51.
Said optical waveguide layer is a clarity plastic layer, and said diffusion layer is clarity plastic layer or opaque plastics layer.
Also be provided with base plate 54 and frame 55, said base plate is superimposed in the back side of said reflecting plate, and all in side edge was fixed in said frame, said LED light emitting source was arranged in the said frame for said base plate, reflecting plate and light guide diffusion board.Certainly, also said base plate can be set, the intensity of visual reflex plate and deciding can be omitted said base plate when the intensity of reflecting plate is suitable.
Preferably, except the medial surface that is provided with the LED light emitting source, all the other inboards all are provided with reflector plate in the inboard of said frame, and reflector plate is used to increase the service efficiency of light, prevent that light from being absorbed by frame.
The foregoing description is merely the illustrative principle of the invention and effect thereof, but not is used to limit the present invention.Rights protection scope of the present invention should be listed like claims.
Claims (10)
1. light guide diffusion board, it is characterized in that: be made up of optical waveguide layer and diffusion layer, it is said light guide diffusion board that said optical waveguide layer and diffusion layer go out the technology one-shot forming through double-layer coextrusion.
2. light guide diffusion board as claimed in claim 1 is characterized in that: said optical waveguide layer is a clarity plastic layer, and said diffusion layer is clarity plastic layer or opaque plastics layer.
3. light guide diffusion board as claimed in claim 1 is characterized in that: the one side that said light guide diffusion board has optical waveguide layer is that the back side and the one side with diffusion layer are the front, and the back up of said light guide diffusion board has some leaded light points.
4. light guide diffusion board as claimed in claim 1; It is characterized in that: the one side that said light guide diffusion board has optical waveguide layer is that the back side and the one side with diffusion layer are the front; Be provided with hyaline membrane, said hyaline membrane is printed with some leaded light points, and said hyaline membrane is attached at the back side of said light guide diffusion board.
5. LED planar light source with light guide diffusion board as claimed in claim 1; It is characterized in that: comprise reflecting plate, light guide diffusion board and LED light emitting source; Said light guide diffusion board is made up of optical waveguide layer and diffusion layer; It is said light guide diffusion board that said optical waveguide layer and diffusion layer go out the technology one-shot forming through double-layer coextrusion; Said reflector plate has two relative surfaces and is respectively reflecting surface and the back side, and said light guide diffusion board is superimposed to have a side of reflecting surface in said reflecting plate, and the one side that said light guide diffusion board is relative with said reflecting plate is the back side; Have some leaded light points on the back side of said light guide diffusion board or the reflecting surface of said reflecting plate, said LED light emitting source is positioned at the side edge of said optical waveguide layer.
6. the LED planar light source with light guide diffusion board as claimed in claim 5, it is characterized in that: said optical waveguide layer is a clarity plastic layer, said diffusion layer is clarity plastic layer or opaque plastics layer.
7. the LED planar light source with light guide diffusion board as claimed in claim 5 is characterized in that: said some leaded light points are printed in the back side of said light guide diffusion board.
8. the LED planar light source with light guide diffusion board as claimed in claim 5 is characterized in that: be provided with hyaline membrane, said some leaded light points are printed in said hyaline membrane, and said hyaline membrane is attached at the back side of said light guide diffusion board.
9. the LED planar light source with light guide diffusion board as claimed in claim 5 is characterized in that: said some leaded light points are printed in the reflecting surface of said reflecting plate.
10. the LED planar light source with light guide diffusion board as claimed in claim 5; It is characterized in that: also be provided with base plate and frame; Said base plate is superimposed in the back side of said reflecting plate; All in side edge was fixed in said frame, said LED light emitting source was arranged in the said frame for said base plate, reflecting plate and light guide diffusion board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101542446A CN102679271A (en) | 2012-05-17 | 2012-05-17 | Light guide diffusion plate and LED (light-emitting diode) plane light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101542446A CN102679271A (en) | 2012-05-17 | 2012-05-17 | Light guide diffusion plate and LED (light-emitting diode) plane light source |
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| Publication Number | Publication Date |
|---|---|
| CN102679271A true CN102679271A (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101542446A Pending CN102679271A (en) | 2012-05-17 | 2012-05-17 | Light guide diffusion plate and LED (light-emitting diode) plane light source |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641887A (en) * | 2017-01-06 | 2017-05-10 | 中山市领航光电科技有限公司 | Panel light of cambered surface reflection and light guide structure |
| CN108897091A (en) * | 2018-05-29 | 2018-11-27 | 深圳创维－Rgb电子有限公司 | A kind of compound down straight aphototropism mode set |
| CN109031509A (en) * | 2018-08-21 | 2018-12-18 | 安徽欧通机电科技股份有限公司 | A kind of composite co-extruding plate and preparation method thereof with leaded light and diffusion function |
| CN110412678A (en) * | 2019-06-22 | 2019-11-05 | 江苏恒隆通新材料科技有限公司 | A kind of light guide diffusion board and shock-dampening method with shock-absorbing function |
| US10900657B2 (en) | 2017-08-01 | 2021-01-26 | Technical Consumer Products, Inc. | Edge-lit light fixture having capabilities for a secondary service |
| WO2021036822A1 (en) * | 2019-09-01 | 2021-03-04 | 王定锋 | Embedded long strip-shaped flexible panel lamp and manufacturing method therefor |
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| CN2630889Y (en) * | 2003-02-09 | 2004-08-04 | 三和企业股份有限公司 | Optical module with light guide diffusion board integrating structure |
| CN1752809A (en) * | 2004-09-21 | 2006-03-29 | 庄新烈 | Light guide plate module and its making method |
| CN201302115Y (en) * | 2008-11-28 | 2009-09-02 | 常州丰盛光电科技股份有限公司 | LED fluorescent lamp |
| CN102069651A (en) * | 2009-11-20 | 2011-05-25 | 京东方科技集团股份有限公司 | Light guide plate as well as printing method and backlight module thereof |
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2012
- 2012-05-17 CN CN2012101542446A patent/CN102679271A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2630889Y (en) * | 2003-02-09 | 2004-08-04 | 三和企业股份有限公司 | Optical module with light guide diffusion board integrating structure |
| CN1752809A (en) * | 2004-09-21 | 2006-03-29 | 庄新烈 | Light guide plate module and its making method |
| CN201302115Y (en) * | 2008-11-28 | 2009-09-02 | 常州丰盛光电科技股份有限公司 | LED fluorescent lamp |
| CN102069651A (en) * | 2009-11-20 | 2011-05-25 | 京东方科技集团股份有限公司 | Light guide plate as well as printing method and backlight module thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641887A (en) * | 2017-01-06 | 2017-05-10 | 中山市领航光电科技有限公司 | Panel light of cambered surface reflection and light guide structure |
| US10900657B2 (en) | 2017-08-01 | 2021-01-26 | Technical Consumer Products, Inc. | Edge-lit light fixture having capabilities for a secondary service |
| CN108897091A (en) * | 2018-05-29 | 2018-11-27 | 深圳创维－Rgb电子有限公司 | A kind of compound down straight aphototropism mode set |
| CN109031509A (en) * | 2018-08-21 | 2018-12-18 | 安徽欧通机电科技股份有限公司 | A kind of composite co-extruding plate and preparation method thereof with leaded light and diffusion function |
| CN110412678A (en) * | 2019-06-22 | 2019-11-05 | 江苏恒隆通新材料科技有限公司 | A kind of light guide diffusion board and shock-dampening method with shock-absorbing function |
| WO2021036822A1 (en) * | 2019-09-01 | 2021-03-04 | 王定锋 | Embedded long strip-shaped flexible panel lamp and manufacturing method therefor |
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Application publication date: 20120919 |