CN102707369A - Colored light guide plate and LED (Light Emitting Diode) plane light source provided with colored light guide plate - Google Patents
Colored light guide plate and LED (Light Emitting Diode) plane light source provided with colored light guide plate Download PDFInfo
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- CN102707369A CN102707369A CN2012101852334A CN201210185233A CN102707369A CN 102707369 A CN102707369 A CN 102707369A CN 2012101852334 A CN2012101852334 A CN 2012101852334A CN 201210185233 A CN201210185233 A CN 201210185233A CN 102707369 A CN102707369 A CN 102707369A
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Abstract
The invention discloses a colored light guide plate and an LED (Light Emitting Diode) plane light source provided with the colored light guide plate. The colored light guide plate consists of a colored transparent layer and a light guide layer and is formed by co-extruding the colored transparent layer and the light guide plate at one step through a double layer co-extrusion process. The LED plane light source provided by the invention comprises a reflective plate, an LED light source and the colored guide plate provided by the invention. The LED plane light source which emits colored light as required is customized according to demand of using occasions for the colored guide plate provided by the invention. When the colored transparent layer contains diffusing particles, the colored transparent layer further has the light diffusing function of a conventional diffusing plate, and due to simple structure, and simple material moulding process and assembly step, the cost is further reduced.
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
The be square parts of plane and the inside of the LED plane lamp of prior art also all are plane; Mainly be reflecting plate, LGP and the diffuser plate of mounting plane shape successively in a rectangular base; And in base and in the side edge of LGP, LED lamp bar is installed; Light reaches the purpose that improves uniformity coefficient 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; Reflected light 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.And the LED plane lamp of prior art sent wide mostly be white, color is relatively more dull, the scope of application is wideless.
Summary of the invention
In order to overcome above-mentioned defective; The invention provides a kind of coloured LGP and have the LED planar light source of this coloured LGP; Coloured LGP of the present invention has been realized customizing the LED planar light source that can send required color light according to the use occasion demand; And because simple in structure, forming materials technology and assembling procedure are simple, and then reach the purpose that reduces cost.
The present invention for the technical scheme that solves its technical matters and adopt is:
A kind of coloured LGP is made up of optical waveguide layer and coloured photic zone, and it is said coloured LGP that said optical waveguide layer and said coloured photic zone go out the technology one-shot forming through double-layer coextrusion.
Said coloured photic zone can be the plastic layer by the coloured printing opacity that resin constituted that is dispersed with colorant.
Said coloured photic zone also can be the plastic layer by the coloured printing opacity with light diffusion function that resin constituted that is dispersed with colorant and diffusion particle.
The one side that said coloured LGP has optical waveguide layer is the back side and has coloured euphotic one side for positive that some leaded light points can be arranged at the back up of said coloured LGP.
The one side that said coloured LGP has an optical waveguide layer is the back side and has coloured euphotic one side for positive, and also can 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 coloured LGP.
A kind of LED planar light source with coloured LGP; Comprise reflecting plate, coloured LGP and LED light emitting source; Said coloured LGP is made up of optical waveguide layer and coloured photic zone; It is said coloured LGP that said optical waveguide layer and coloured photic zone 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 coloured LGP is superimposed to have a side of reflecting surface in said reflecting plate, and the one side that said coloured LGP is relative with said reflecting plate is the back side; Have some leaded light points on the back side of said coloured LGP or the reflecting surface of said reflecting plate, said LED light emitting source is positioned at the side edge of said optical waveguide layer.
Said coloured photic zone can be the plastic layer by the coloured printing opacity that resin constituted that is dispersed with colorant.
Said coloured photic zone also can be the plastic layer by the coloured printing opacity with light diffusion function that resin constituted that is dispersed with colorant and diffusion particle.
Said some leaded light points can be printed in the back side of said coloured LGP.
Also 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 coloured LGP.
Said some leaded light points can also be printed in the reflecting surface of said reflecting plate.
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 coloured LGP.
When the intensity of said reflecting plate is suitable, said base plate can be set.
The invention has the beneficial effects as follows: the present invention goes out technology with optical waveguide layer and the coloured LGP of coloured photic zone coextrusion simultaneously one-shot forming for being made up of coloured photic zone and optical waveguide layer one through double-layer coextrusion, and coloured LGP of the present invention has been realized customizing the LED planar light source that can send required color light according to the use occasion demand; When this coloured photic zone contained diffusion particle, this coloured photic zone also had the light diffusion function of conventional diffusion plate; And because simple in structure, forming materials technology and assembling procedure are simple, and then reach the purpose that reduces cost.
Description of drawings
Fig. 1 is coloured light conducting plate structure synoptic diagram of the embodiment of the invention 1;
Fig. 2 is coloured light conducting plate structure synoptic diagram of the embodiment of the invention 2;
Fig. 3 is the LED flat light source structure synoptic diagram with coloured LGP of the embodiment of the invention 3;
Fig. 4 is the LED flat light source structure synoptic diagram with coloured LGP of the embodiment of the invention 4;
Fig. 5 is the LED flat light source structure synoptic diagram with coloured LGP of the embodiment of the invention 5.
Embodiment
Embodiment 1: a kind of coloured LGP 100; Constitute by optical waveguide layer 11 and coloured photic zone 12; It is said coloured LGP that said optical waveguide layer and coloured photic zone go out the technology one-shot forming through double-layer coextrusion, specifically can produce through equipment such as double-layer coextrusion plastics extruders.
The present invention reaches the purpose that makes light changed into required color by white through this coloured photic zone.
Said optical waveguide layer is a clarity plastic layer, and said coloured photic zone is clarity plastic layer or opaque plastics layer.
Said coloured photic zone can be the plastic layer by the coloured printing opacity that resin constituted that is dispersed with colorant.This colorant can be printing ink, pigment or toner etc.
Said coloured photic zone also can be the plastic layer by the coloured printing opacity with light diffusion function that resin constituted that is dispersed with colorant and diffusion particle.
The one side that said coloured LGP has optical waveguide layer is the back side and has coloured euphotic one side for positive that the back up of said coloured LGP has some leaded light points 13.
Embodiment 2: a kind of coloured LGP 200, constitute by optical waveguide layer 21 and coloured photic zone 22, and it is said coloured LGP that said optical waveguide layer and coloured photic zone go out the technology one-shot forming through double-layer coextrusion.
The present invention reaches the purpose that makes light changed into required color by white through this coloured photic zone.
Said optical waveguide layer is a clarity plastic layer, and said coloured photic zone is clarity plastic layer or opaque plastics layer.
Said coloured photic zone can be the plastic layer by the coloured printing opacity that resin constituted that is dispersed with colorant.This colorant can be printing ink, pigment or toner etc.
Said coloured photic zone also can be the plastic layer by the coloured printing opacity with light diffusion function that resin constituted that is dispersed with colorant and diffusion particle.
The one side that said coloured LGP has an optical waveguide layer is the back side and has coloured euphotic one side for positive, and be provided with hyaline membrane 23, said hyaline membrane is printed with some leaded light points 231, and said hyaline membrane is attached at the back side of said coloured LGP.
Embodiment 3: a kind of LED planar light source 300 with coloured LGP; Comprise reflecting plate 31, coloured LGP 32 and LED light emitting source 33; Said coloured LGP is made up of optical waveguide layer 321 and coloured photic zone 322; It is said coloured LGP that said optical waveguide layer and coloured photic zone 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 coloured LGP is superimposed to have a side of reflecting surface in said reflecting plate, and the one side that said coloured LGP is relative with said reflecting plate is the back side; The back up of said coloured LGP 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 coloured photic zone is clarity plastic layer or opaque plastics layer.
Said coloured photic zone can be the plastic layer by the coloured printing opacity that resin constituted that is dispersed with colorant.
Said coloured photic zone also can be the plastic layer by the coloured printing opacity with light diffusion function that resin constituted that is dispersed with colorant and diffusion particle.
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 coloured LGP.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 coloured LGP; Comprise reflecting plate 41, coloured LGP 42 and LED light emitting source 43; Said coloured LGP is made up of optical waveguide layer 421 and coloured photic zone 422, and it is said coloured LGP that said optical waveguide layer and coloured photic zone 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 coloured LGP; Said LED light emitting source is positioned at the side edge of said optical waveguide layer, and the one side that said coloured LGP 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 coloured LGP.
Said optical waveguide layer is a clarity plastic layer, and said coloured photic zone is clarity plastic layer or opaque plastics layer.
Said coloured photic zone can be the plastic layer by the coloured printing opacity that resin constituted that is dispersed with colorant.
Said coloured photic zone also can be the plastic layer by the coloured printing opacity with light diffusion function that resin constituted that is dispersed with colorant and diffusion particle.
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 coloured LGP.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 coloured LGP; Comprise reflecting plate 51, coloured LGP 52 and LED light emitting source 53; Said coloured LGP is made up of optical waveguide layer 521 and coloured photic zone 522; It is said coloured LGP that said optical waveguide layer and coloured photic zone 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 coloured LGP; 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 coloured photic zone is clarity plastic layer or opaque plastics layer.
Said coloured photic zone can be the plastic layer by the coloured printing opacity that resin constituted that is dispersed with colorant.
Said coloured photic zone also can be the plastic layer by the coloured printing opacity with light diffusion function that resin constituted that is dispersed with colorant and diffusion particle.
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 coloured LGP.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 (12)
1. coloured LGP, it is characterized in that: be made up of optical waveguide layer and coloured photic zone, it is said coloured LGP that said optical waveguide layer and said coloured photic zone go out the technology one-shot forming through double-layer coextrusion.
2. coloured LGP as claimed in claim 1 is characterized in that: said coloured photic zone is the plastic layer by the coloured printing opacity that resin constituted that is dispersed with colorant.
3. coloured LGP as claimed in claim 1 is characterized in that: said coloured photic zone is the plastic layer by the coloured printing opacity with light diffusion function that resin constituted that is dispersed with colorant and diffusion particle.
4. like claim 2 or 3 described coloured LGPs, it is characterized in that: the one side that said coloured LGP has optical waveguide layer is the back side and has coloured euphotic one side for positive that the back up of said coloured LGP has some leaded light points.
5. like claim 2 or 3 described coloured LGPs; It is characterized in that: the one side that said coloured LGP has optical waveguide layer is the back side and has coloured euphotic one side for positive; 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 coloured LGP.
6. LED planar light source with coloured LGP as claimed in claim 1; It is characterized in that: comprise reflecting plate, coloured LGP and LED light emitting source; Said coloured LGP is made up of optical waveguide layer and coloured photic zone; It is said coloured LGP that said optical waveguide layer and coloured photic zone 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 coloured LGP is superimposed to have a side of reflecting surface in said reflecting plate, and the one side that said coloured LGP is relative with said reflecting plate is the back side; Have some leaded light points on the back side of said coloured LGP or the reflecting surface of said reflecting plate, said LED light emitting source is positioned at the side edge of said optical waveguide layer.
7. the LED planar light source with coloured LGP as claimed in claim 6 is characterized in that: said coloured photic zone is the plastic layer by the coloured printing opacity that resin constituted that is dispersed with colorant.
8. the LED planar light source with coloured LGP as claimed in claim 6 is characterized in that: said coloured photic zone is the plastic layer by the coloured printing opacity with light diffusion function that resin constituted that is dispersed with colorant and diffusion particle.
9. like claim 7 or 8 described LED planar light sources with coloured LGP, it is characterized in that: said some leaded light points are printed in the back side of coloured LGP.
10. like claim 7 or 8 described LED planar light sources with coloured LGP, it 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 coloured LGP.
11. like claim 7 or 8 described LED planar light sources with coloured LGP, it is characterized in that: said some leaded light points are printed in the reflecting surface of reflecting plate.
12. the LED planar light source with coloured LGP as claimed in claim 6; 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 coloured LGP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101852334A CN102707369A (en) | 2012-06-07 | 2012-06-07 | Colored light guide plate and LED (Light Emitting Diode) plane light source provided with colored light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101852334A CN102707369A (en) | 2012-06-07 | 2012-06-07 | Colored light guide plate and LED (Light Emitting Diode) plane light source provided with colored light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102707369A true CN102707369A (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101852334A Pending CN102707369A (en) | 2012-06-07 | 2012-06-07 | Colored light guide plate and LED (Light Emitting Diode) plane light source provided with colored light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102707369A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239837A (en) * | 2018-11-09 | 2019-01-18 | 深圳Tcl新技术有限公司 | Light guide plate side reflector plate attachment process and light guide plate |
| CN110430703A (en) * | 2019-07-31 | 2019-11-08 | Oppo广东移动通信有限公司 | Shell, electronic equipment and its control method |
| US10900657B2 (en) | 2017-08-01 | 2021-01-26 | Technical Consumer Products, Inc. | Edge-lit light fixture having capabilities for a secondary service |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04173139A (en) * | 1990-11-05 | 1992-06-19 | Asahi Chem Ind Co Ltd | Light pervious colored co-extrusion sheet |
| CN1512198A (en) * | 2002-12-27 | 2004-07-14 | 鸿富锦精密工业（深圳）有限公司 | Reflective plate and area source device |
| 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 |
| CN202649505U (en) * | 2012-06-07 | 2013-01-02 | 昆山市诚泰电气股份有限公司 | A colored light guide plate and a LED planar light source containing the same |
-
2012
- 2012-06-07 CN CN2012101852334A patent/CN102707369A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04173139A (en) * | 1990-11-05 | 1992-06-19 | Asahi Chem Ind Co Ltd | Light pervious colored co-extrusion sheet |
| CN1512198A (en) * | 2002-12-27 | 2004-07-14 | 鸿富锦精密工业（深圳）有限公司 | Reflective plate and area source device |
| 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 |
| CN202649505U (en) * | 2012-06-07 | 2013-01-02 | 昆山市诚泰电气股份有限公司 | A colored light guide plate and a LED planar light source containing the same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10900657B2 (en) | 2017-08-01 | 2021-01-26 | Technical Consumer Products, Inc. | Edge-lit light fixture having capabilities for a secondary service |
| CN109239837A (en) * | 2018-11-09 | 2019-01-18 | 深圳Tcl新技术有限公司 | Light guide plate side reflector plate attachment process and light guide plate |
| CN109239837B (en) * | 2018-11-09 | 2020-11-03 | 深圳Tcl新技术有限公司 | Light guide plate side reflector plate attaching process and light guide plate |
| CN110430703A (en) * | 2019-07-31 | 2019-11-08 | Oppo广东移动通信有限公司 | Shell, electronic equipment and its control method |
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Application publication date: 20121003 |