CN102878531A - Light guiding and color changing diffusion layer - Google Patents
Light guiding and color changing diffusion layer Download PDFInfo
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- CN102878531A CN102878531A CN2012103397663A CN201210339766A CN102878531A CN 102878531 A CN102878531 A CN 102878531A CN 2012103397663 A CN2012103397663 A CN 2012103397663A CN 201210339766 A CN201210339766 A CN 201210339766A CN 102878531 A CN102878531 A CN 102878531A
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Abstract
The invention discloses a light guiding and color changing diffusion layer, which consists of a sequential light guide layer, a colored transparent layer and a diffusion layer. The light guide layer converts an LED beam light source into a face light source, the colored transparent layer can change the color of light, and the diffusion layer prevents dazzle so that the beam is more flexible. According to the light guiding and color changing diffusion layer, an LED planar light source which can emit light in needed color is formulated as required by using occasions, a high color temperature LED light source which is lower in cost is used, and the light guiding and color changing diffusion layer converts the high color temperature light to low color temperature LED light. The LED light source corresponding to the low color temperature LED light is relatively higher so that the cost is further lowered.
Description
Technical field
The invention belongs to photoelectric field, be specifically related to a kind ofly can be used for throwing light on or the improvement structure of the LGP of display backlight module.
Background technology
The be square parts of plane and the inside of the LED flat lamp of prior art also all are plane, mainly be successively reflecting plate, LGP and the diffuser plate of mounting plane shape in a rectangular base, and in base and at the side edge mounted LED lamp bar of LGP, light reaches the purpose that improves the uniformity through Multi reflection under the acting in conjunction of reflecting plate and LGP, and effectively prevents dazzle by diffuser plate.By said structure and principle as can be known, the core of this class LED flat lamp is that the effect by LGP is converted into area source with line source, and prevent dazzle by diffuser plate, the LGP of prior art is acrylic (PMMA) sheet material that utilizes optical grade, then with having high reflectivity and the printing ink of extinction not, light guiding points in the printing of the acryl plates bottom surface of optical grade, the light that utilizes the optical grade acryl plates to draw to send from lamp is in the stop on optical grade acryl plates surface, when light is mapped to each light guiding points, reverberation can toward all angles diffusion, then destroy conditioned reflex and penetrate by LGP is positive.By various densitys, light guiding points 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 by the injection machine extrusion molding.As from the foregoing, the material layer that adopts in the structure of the LED flat lamp of prior art is more, processing is loaded down with trivial details, therefore makes the cost of whole LED flat lamp higher.And the LED flat lamp of prior art send wide mostly be white, color is relatively more dull, the scope of application is wideless.
Colour temperature is to represent with absolute temperature K, be about to standard black matrix heating, color began by dark red-pale red-orange-Bai-indigo plant when temperature was elevated to a certain degree, changed gradually, when the color of certain light source and black matrix was identical, we were called black matrix absolute temperature at that time the colour temperature of this light source.The inclined to one side reddish yellow of light (warm tones) that low colour temperature LED sends, its cost and price are higher; The light that high color temperature LED sends is partially bluish-green (cool tone) then, and its cost and price are lower.In the prior art, when the light of what color of needs, just use the LED of corresponding colour temperature.
Summary of the invention
In order to overcome defects, the invention provides a kind of leaded light variable color diffusion structure, leaded light variable color diffusion structure of the present invention has realized line source is converted into the purpose of area source, transformation light color, diffusion, anti-dazzle, can can send according to the customization of use occasion demand the function of required color light, and thereby the led light source that can adopt lower price is converted into the light of required color by light color, and then reach the purpose that reduces cost, again and simple in structure, easy to implement.
The present invention for the technical scheme that solves its technical problem and adopt is:
A kind of leaded light variable color diffusion structure is made of optical waveguide layer, diffusion layer and coloured photic zone; Described optical waveguide layer has two relative surfaces, is respectively light guiding surface and exiting surface; Described coloured photic zone is positioned at the side that optical waveguide layer has exiting surface; Described coloured photic zone is positioned at described diffusion layer and described optical waveguide layer between the two.
The present invention for the further technical scheme that solves its technical problem and adopt is:
Light guiding surface printing or the laser of described optical waveguide layer have some light guiding points.Certainly, also can post hyaline membrane at the light guiding surface of described optical waveguide layer, be printed with some light guiding points on the described hyaline membrane.
Described leaded light variable color diffusion structure can to go out technique one-body molded by three-layer co-extruded by described optical waveguide layer, coloured photic zone and diffusion layer.
Described leaded light variable color diffusion structure also can be to be made of separate tabular of three layers of described optical waveguide layer, coloured photic zone and diffusion layers.
Described leaded light variable color diffusion structure can also be following structure: described optical waveguide layer and diffusion layer are separate tabular, and described coloured photic zone is coated in exiting surface and described diffusion layer at least one face in the face of described optical waveguide layer of described optical waveguide layer.
Described coloured photic zone can be coated in the exiting surface of described optical waveguide layer.
Described coloured photic zone also can be coated in described diffusion layer towards the face of described optical waveguide layer.
Described coloured photic zone can be the plastic layer of coloured printing opacity of consisting of of the resin by the toner that is scattered here and there.
Described coloured photic zone is that the resin-coating that contains colouring agent forms.
The invention has the beneficial effects as follows: leaded light variable color diffusion structure of the present invention is by optical waveguide layer, diffusion layer and coloured photic zone consist of, light changes color through entering coloured photic zone after the optical waveguide layer leaded light, after the diffusion layer diffusion, irradiate again, therefore this leaded light variable color diffusion structure has been realized line source is converted into area source, change light color, the purpose of diffusion softening light, can can send according to the customization of use occasion demand the function of required color light, thereby and can adopt the led light source of lower price to be converted into the light of required color by light color, and then reach the purpose that reduces cost.
Description of drawings
Fig. 1 is the cross-sectional view of the leaded light variable color diffusion structure of the embodiment of the invention 1;
Fig. 2 is the cross-sectional view of the leaded light variable color diffusion structure of the embodiment of the invention 2;
Fig. 3 is the cross-sectional view of the leaded light variable color diffusion structure of the embodiment of the invention 3;
Fig. 4 is the cross-sectional view of the leaded light variable color diffusion structure of the embodiment of the invention 4.
The coloured photic zone of 1---optical waveguide layer 2---
3---diffusion layer 11---exiting surface
12---light guiding surface
The specific embodiment
Embodiment 1: a kind of leaded light variable color diffusion structure, sequentially consisted of by optical waveguide layer 1, coloured photic zone 2 and diffusion layer 3, go out by three-layer co-extruded that technique is one-body molded to be described leaded light variable color diffusion structure, specifically can produce by equipment such as coextruded plastic extruders.
The light guiding surface 12 of described LGP can be to be formed with some light guiding points by printing or the mode of laser dotting, and the line source that led light source is sent is converted into area source.
The light guiding surface 12 of described LGP can also be to post hyaline membrane, and described hyaline membrane is printed with some light guiding points, and the line source that led light source is sent is converted into area source.
Described optical waveguide layer 1 is clarity plastic layer.
Described diffusion layer 3 is so that light is softer, anti-dazzle.
Described coloured photic zone 2 is clarity plastic layer or opaque plastics layer, but must be printing opacity.
Described coloured photic zone 2 also can be the plastic layer of the printing opacity of the change light color function that is made of the resin that is dispersed with colouring agent.
Embodiment 2: a kind of leaded light variable color diffusion structure, sequentially consisted of by optical waveguide layer 1, coloured photic zone 2 and diffusion layer 3, and these three layers is separate platy structure.
The light guiding surface 12 of described LGP can be to be formed with some light guiding points by printing or the mode of laser dotting, and the line source that led light source is sent is converted into area source.
The light guiding surface 12 of described LGP can also be to post hyaline membrane, and described hyaline membrane is printed with some light guiding points, and the line source that led light source is sent is converted into area source.
Described optical waveguide layer 1 is clarity plastic layer.
Described diffusion layer 3 is so that light is softer, anti-dazzle.Described coloured photic zone 2 is clarity plastic layer or opaque plastics layer, but must be printing opacity.
Described coloured photic zone 2 also can be the plastic layer with the printing opacity that changes the light color function that is made of the resin that is dispersed with colouring agent.
Embodiment 3: a kind of leaded light variable color diffusion structure, sequentially consisted of by optical waveguide layer 1, coloured photic zone 2 and diffusion layer 3, and described coloured photic zone 2 is coated in the exiting surface 11 of described optical waveguide layer.
The light guiding surface 12 of described LGP can be to be formed with some light guiding points by printing or the mode of laser dotting, and the line source that led light source is sent is converted into area source.
The light guiding surface 12 of described LGP can also be to post hyaline membrane, and described hyaline membrane is printed with some light guiding points, and the line source that led light source is sent is converted into area source.
Described optical waveguide layer 1 is clarity plastic layer.
Described diffusion layer 3 is so that light is softer, anti-dazzle.
Described coloured photic zone 2 can be to be formed by the resin-coating that contains colouring agent, has the light color of change function.
Embodiment 4: a kind of leaded light variable color diffusion structure, sequentially consisted of by optical waveguide layer 1, coloured photic zone 2 and diffusion layer 3, and described coloured photic zone 2 is coated in described diffusion layer 3 towards the one side of described optical waveguide layer.
The light guiding surface 12 of described LGP can be to be formed with some light guiding points by printing or the mode of laser dotting, and the line source that led light source is sent is converted into area source.
The light guiding surface 12 of described LGP can also be to post hyaline membrane, and described hyaline membrane is printed with some light guiding points, and the line source that led light source is sent is converted into area source.
Described optical waveguide layer 1 is clarity plastic layer.
Described diffusion layer 3 is so that light is softer, anti-dazzle.
Described coloured photic zone 2 can be to be formed by the resin-coating that contains colouring agent, has the light color of change function.
The example that changes the LED light that projects by coloured euphotic color is as follows: adopt the green LED light source of relative low price to cooperate red coloured photic zone, can produce sodium yellow, and prior art adopts led light source price corresponding to sodium yellow relatively high; Adopt the blue led light source of relative low price to cooperate red coloured photic zone, can produce pink, and prior art adopts led light source price corresponding to pink relatively high; Deng.
Claims (10)
1. a leaded light variable color diffusion structure is characterized in that: be made of optical waveguide layer, diffusion layer and coloured photic zone; Described optical waveguide layer has two relative surfaces, is respectively light guiding surface and exiting surface; Described coloured photic zone is positioned at the side that optical waveguide layer has exiting surface; Described coloured photic zone is positioned at described diffusion layer and described optical waveguide layer between the two.
2. a kind of leaded light variable color diffusion structure as claimed in claim 1, it is characterized in that: light guiding surface printing or the laser of described optical waveguide layer have some light guiding points.
3. a kind of leaded light variable color diffusion structure as claimed in claim 1, it is characterized in that: the light guiding surface of described optical waveguide layer posts hyaline membrane, is printed with some light guiding points on the described hyaline membrane.
4. a kind of leaded light variable color diffusion structure as claimed in claim 1 is characterized in that: to go out technique one-body molded by three-layer co-extruded by described optical waveguide layer, coloured photic zone and diffusion layer.
5. a kind of leaded light variable color diffusion structure as claimed in claim 1 is characterized in that: three layers of described optical waveguide layer, coloured photic zone and diffusion layers are separate tabular.
6. a kind of leaded light variable color diffusion structure as claimed in claim 1, it is characterized in that: described optical waveguide layer and diffusion layer are separate tabular, and described coloured photic zone is coated in exiting surface and described diffusion layer at least one face in the face of described optical waveguide layer of described optical waveguide layer.
7. a kind of leaded light variable color diffusion structure as claimed in claim 6, it is characterized in that: described coloured photic zone is coated in the exiting surface of described optical waveguide layer.
8. a kind of leaded light variable color diffusion structure as claimed in claim 6, it is characterized in that: described coloured photic zone is coated in described diffusion layer towards the face of described optical waveguide layer.
9. such as claim 4 or 5 described a kind of leaded light variable color diffusion structures, it is characterized in that: described coloured photic zone is the plastic layer of coloured printing opacity of consisting of of the resin by the toner that is scattered here and there.
10. a kind of leaded light variable color diffusion structure as claimed in claim 6, it is characterized in that: described coloured photic zone is that the resin-coating that contains colouring agent forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103397663A CN102878531A (en) | 2012-09-13 | 2012-09-13 | Light guiding and color changing diffusion layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103397663A CN102878531A (en) | 2012-09-13 | 2012-09-13 | Light guiding and color changing diffusion layer |
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| CN102878531A true CN102878531A (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012103397663A Pending CN102878531A (en) | 2012-09-13 | 2012-09-13 | Light guiding and color changing diffusion layer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108749046A (en) * | 2018-04-24 | 2018-11-06 | 惠州市笨鸟光学材料有限公司 | A kind of processing method of board |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201508444U (en) * | 2009-06-02 | 2010-06-16 | 深圳市帝显电子有限公司 | Liquid crystal back light structure capable of being made to present various back light colors |
| CN101806414A (en) * | 2009-02-17 | 2010-08-18 | Lg伊诺特有限公司 | Light source and display device having the same |
| CN202203776U (en) * | 2011-08-15 | 2012-04-25 | 昆山顺景光电有限公司 | High-brightness yellow green LED (Light-Emitting Diode) backlight source |
| CN202791815U (en) * | 2012-09-13 | 2013-03-13 | 昆山市诚泰电气股份有限公司 | Light-guide and color-change diffusion structure |
-
2012
- 2012-09-13 CN CN2012103397663A patent/CN102878531A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806414A (en) * | 2009-02-17 | 2010-08-18 | Lg伊诺特有限公司 | Light source and display device having the same |
| CN201508444U (en) * | 2009-06-02 | 2010-06-16 | 深圳市帝显电子有限公司 | Liquid crystal back light structure capable of being made to present various back light colors |
| CN202203776U (en) * | 2011-08-15 | 2012-04-25 | 昆山顺景光电有限公司 | High-brightness yellow green LED (Light-Emitting Diode) backlight source |
| CN202791815U (en) * | 2012-09-13 | 2013-03-13 | 昆山市诚泰电气股份有限公司 | Light-guide and color-change diffusion structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108749046A (en) * | 2018-04-24 | 2018-11-06 | 惠州市笨鸟光学材料有限公司 | A kind of processing method of board |
| 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 |
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Application publication date: 20130116 |