CN102943970B - Light-emitting diode (LED) emitting device - Google Patents
Light-emitting diode (LED) emitting device Download PDFInfo
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- CN102943970B CN102943970B CN201210482159.2A CN201210482159A CN102943970B CN 102943970 B CN102943970 B CN 102943970B CN 201210482159 A CN201210482159 A CN 201210482159A CN 102943970 B CN102943970 B CN 102943970B
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- Illuminated Signs And Luminous Advertising (AREA)
Abstract
Disclosed is an LED emitting device coated with dyes. The device comprises at least one light source and a plate made of transparent materials. The plate comprises a light outlet surface and a light inlet surface, the at least one light source is opposite to the light inlet surface, and a plurality of micro structures are distributed on the light outlet surface. The micro structures are provided with salient points with a plurality of faces, and dyes with different colors are coated on the plurality of the faces of the micro structures. The LED emitting device enables observers to observe different light colors at different positions.
Description
Technical field
the present invention relates to a kind of LED light-emitting device that scribbles dyestuff, belong to LED flat pannel display and lighting technical field.
Background technology
light-emitting device is widely used in the fields such as advertisement and identifier board, traffic direction sign, and can be used as the illumination demonstration of instrument panel.CN101469825B and US8002455B2 disclose a kind of LED luminescent panel, comprise multiple microstructures, by scribble the dyestuff of same color in the same microstructure that shows group, in the different microstructures that show group, scribble the dyestuff of different colours, make can demonstrate coloury information on this luminescent panel, and can be by the glow color of toggle lights, in same panel in not showing in the same time different information.This patent is the improvement for this patent, and this full patent texts is quoted and is incorporated into this.
Summary of the invention
one aspect of the present invention, a kind of LED light-emitting device that scribbles dyestuff is provided, it has CN101469825B and the described function of US8002455 B2 invention, and the color of the light that this LED light-emitting device sends can change along with the variation of observer position.
for the realization of above-mentioned functions, the invention provides a kind of LED light-emitting device that scribbles dyestuff, comprise at least one light source and the body being formed by transparent material, this plate body comprises exiting surface and incidence surface, light source and incidence surface are oppositely arranged, several microstructures distribute on this exiting surface, described microstructure scribbles dyestuff, for absorbing the light different from this dye colour, it is characterized in that: described microstructure is to have the salient point of multiple, described light source is for switchably providing the monochromatic light of at least two kinds of different colours, described dyestuff is the dyestuff that is coated in the different colours of each of multiple of described microstructure, the monochromatic color of at least two kinds of different colours described in the color of described dyestuff is selected from.Pass through technique scheme, in the time that light source irradiates the monochromatic light of multiple different colours, each of microstructure owing to scribbling the dyestuff of different colours, coplanar can not send to different angles the light of different colours, thus the light color difference that observer is observed at diverse location.
a upper scheme needs light source to irradiate the monochromatic light of at least two kinds of colors simultaneously, as the improvement project to a upper scheme, according to another aspect of the present invention, a kind of LED light-emitting device that scribbles dyestuff is provided, only need light source to irradiate a kind of monochromatic light of color, the color that can realize the light that LED light-emitting device sends can change along with the variation of observer position.
for the realization of above-mentioned functions, the invention provides a kind of LED light-emitting device that scribbles dyestuff, comprise at least one light source and the body being formed by transparent material, this plate body comprises exiting surface and incidence surface, light source and incidence surface are oppositely arranged, several microstructures distribute on this exiting surface, described microstructure scribbles dyestuff, for absorbing the light different from this dye colour, it is characterized in that: described microstructure is to have the salient point of multiple, described light source is for switchably providing the monochromatic light of at least one color, on each of multiple of described microstructure, scribble different fluorescent materials, this fluorescent material is converted into the monochromatic light of another kind of wavelength for the monochromatic light that this light source is sent, described dyestuff is to be coated in dyestuff outside this fluorescent material and monochromatic light same color this another kind wavelength.Pass through technique scheme, monochromatic light is converted into the monochromatic light of another wavelength by fluorescent material, simultaneously, be set to the color the same with the monochromatic light being inspired by the color of dyestuff, make to only have this light that is excited can appear light-emitting device, only use a kind of monochromatic light of color can realize the light that LED light-emitting device sends can to change along with the variation of observer position thereby realize.
according to a further aspect in the invention, in such scheme, luminescent panel is rectangular structure, and described incidence surface is positioned at a bottom surface of rectangular parallelepiped, and described exiting surface is to be positioned at another bottom surface with respect to this incidence surface on rectangular parallelepiped.
according to a further aspect in the invention, in such scheme, luminescent panel is rectangular structure, and described incidence surface is positioned at a side of rectangular parallelepiped, and described exiting surface is positioned at a bottom surface of rectangular parallelepiped.
according to a further aspect in the invention, in such scheme, described luminescent panel is rectangular structure, described incidence surface is positioned at a side of rectangular parallelepiped, described exiting surface is a bottom surface of rectangular parallelepiped, on another bottom surface relative with described exiting surface, microstructure is set, makes this another bottom surface become another exiting surface.By such setting, make this luminescent panel can realize double-side, make observer can see the content of this luminescent panel at pro and con, and distribute by different microstructures is set at pros and cons, can make the pro and con of this reflective panel can show different contents.
according to a further aspect in the invention, a kind of luminescent panel is provided, comprise at least one light source and the plate body of being made by transparent material, this plate body comprises exiting surface and incidence surface, light source and incidence surface are oppositely arranged, several microstructures distribute on this exiting surface, it is characterized in that, this light source is in order to switchably to provide the monochromatic light of at least one different colours, the multiple demonstration of this some microstructures formation group, in at least one demonstration group, be coated with the fluorescent material that is useful on Wavelength-converting, at the dyestuff of the demonstration group coating that the scribbles fluorescent material color the same with the monochromatic light being inspired, do not scribbling the demonstration group coating dyestuff the same with light source colour of fluorescent material.By such setting, in the time that light source only provides a kind of monochromatic light of color, different groups can show different colors.
according to a further aspect in the invention, in such scheme, the material of described plate body is the one in polymethylmethacrylate, polycarbonate, resin material, glass, organosilicon, epoxy resin.
according to a further aspect in the invention, in such scheme, described light source comprises at least one monochromatic light solid-state light emitting element.
according to a further aspect in the invention, in such scheme, described monochromatic light solid-state light emitting element is one of ruddiness, orange light, gold-tinted, green glow, indigo light, blue light, purple LED.
according to a further aspect in the invention, in such scheme, described dyestuff is transmission dyes.
according to a further aspect in the invention, in such scheme, do not have the position of microstructure to plate the material that one deck reflectivity is high at panel surface, form reflection horizon.
Brief description of the drawings
fig. 1 is the diagrammatic cross-section of the light-emitting device of one embodiment of the invention.
fig. 2 is the diagrammatic cross-section of the microstructure of an embodiment in the present invention.
fig. 3 is the diagrammatic cross-section of the microstructure of another embodiment in the present invention.
fig. 4 is the diagrammatic cross-section of the light-emitting device of another embodiment in the present invention.
Embodiment
with reference to the accompanying drawings, further illustrate this LED light-emitting device.And, should be appreciated that the not mutual exclusion of feature of various embodiment described here, and can in various combinations and transformation process, exist.
as shown in Figure 1, the LED light-emitting device that scribbles dyestuff comprises the plate body 2 that light source 1, transparent material are made.This plate body 2 comprises exiting surface 3, the bottom surface 4 relative with exiting surface 3, side 5 between exiting surface 3 and bottom surface 4 and is positioned at some microstructures of exiting surface 3, and this microstructure is salient point 6.Plate body material can be the polymkeric substance such as polymethylmethacrylate (PMMA), polycarbonate (PC), resin material (resin), glass (glass), organosilicon (silicone), epoxy resin (epoxy), light transmittance at least reaches 70%, and refractive index can be 1.4-1.7.This LED light-emitting device adopts side light source form, and taking side 5 as incidence surface, incidence surface is adjacent with exiting surface 3, and light source 1 is oppositely arranged with side 5.Light source 1 comprises the monochromatic light solid-state light emitting element of multiple different colours, and can switch the monochromatic light that at least two kinds of different colours are provided, for example ruddiness, orange light, gold-tinted, green glow, indigo light, blue light or purple LED, its installation form can be SMD (SMD) etc.The light that light source 1 sends incides in plate body 2 via the side 5 of plate body 2, and propagates in plate body 2.Based on total reflection principle, light can be in the interior to-and-fro movement of plate body 2.The exiting surface 3 of LED light-emitting device is distributed with some salient points 6, salient point 6 is for having the shape of multiple, can be for example triangle cone, quadrangular pyramid body, positive tetrahedron, cube etc., this salient point 6 has destroyed original smooth flat, and can there is not total reflection, so in the time that light touches salient point 6, just can penetrate out LED light-emitting device.
fig. 2 shows a kind of structure of embodiment bumps 6, on the not coplanar of salient point 6, be coated with the dyestuff 61,62 of different colours, the color of the dyestuff of this different colours is selected from the monochromatic color of the different colours that light source provides, in the time that light passes through the dyestuff of solid color, the light different from this dye colour can be absorbed by dyestuff, and the light identical with this dye colour can leach this dyestuff.For example, on salient point 6 left sides, 61 is orchil, on salient point 6, the right side 62 is weld, in the time that light source 1 comprises red-light LED and yellow light LED, when the ruddiness that this red-light LED sends passes through this salient point 6, ruddiness can leach the left side of this salient point 6, and its shooting angle is α 1, and the gold-tinted that yellow light LED sends cannot see through the left side of this salient point 6; When the gold-tinted that this yellow light LED sends passes through this salient point 6, gold-tinted can leach the right side of this salient point 6, and its shooting angle is α 2, and the ruddiness light that red-light LED sends cannot see through the right side of this salient point 6.Like this, the red-light LED of light source and gold-tinted diode are opened simultaneously, only had the region A of ruddiness, what observer saw only has red light; At the Mixed Zone of ruddiness and gold-tinted B, what observer saw is the orange-colored light of ruddiness and yellow light mix; And only having the region C of gold-tinted, what observer saw is sodium yellow.
fig. 3 shows the structure of another embodiment bumps 6, different from Fig. 2, before dyestuff 61 and 62, is coated with fluorescent material 611 and 621.Fluorescent material 611 and 621 is converted into the monochromatic light of another kind of wavelength for the monochromatic light that light source is sent, the color of dyestuff 61 and 62 is respectively the monochromatic color that fluorescent material 611 and 621 inspires.For example, light source 1 comprises blue-ray LED, and fluorescent material 611 is for being converted to blue light the material of ruddiness, and 61 is orchil; Fluorescent material 621 is for being converted to blue light the material of gold-tinted, and 62 is weld.Like this, only have a kind of monochromatic blue-ray LED as long as open, just can realize, only having the region A of ruddiness, what observer saw only has red light; At the Mixed Zone of ruddiness and gold-tinted B, what observer saw is the orange-colored light of ruddiness and yellow light mix; And only having the region C of gold-tinted, what observer saw is sodium yellow.
fig. 4 shows an alternative embodiment of the invention, as shown in Figure 4, the LED light-emitting device that scribbles dyestuff comprises the plate body 2 that light source 1, transparent material are made, plate body 2 is rectangular structure, and this plate body 2 comprises in the exiting surface 31 of plate body side, another exiting surface 32 relative with exiting surface 3, side 5 between exiting surface 31 and exiting surface 32 and is positioned at some microstructures 6 of exiting surface 31 and 32.Preferably, this microstructure 6 can be the combination of concave point, salient point or concave point and salient point, and the shape of concave point or salient point can be cone, triangle cone, quadrangular pyramid body, positive tetrahedron, cube, half sphere shape etc.By such setting, make this light-emitting device can realize double-side, make observer can see the content of this light-emitting device at pro and con, and distribute by different microstructures is set at pros and cons, can make the pro and con of this light-emitting device can show different contents.
in order to make light appear from microstructure as far as possible, and do not spill from other places, can not have the position of microstructure to plate the material that one deck reflectivity is high at panel surface, as mercury, Al, Ag, Au, Cu etc., form reflection horizon.
salient point in above-described embodiment can be made by lithographic plate printing method, according to needed word or pattern form, carries out net-pont design, make egative film, then egative film is printed onto on the surface of exiting surface, finally baking or ultraviolet ray are irradiated, thereby form salient point.Salient point in above-described embodiment also can form by mould molding.
concave point in above-described embodiment can carry out semiconductor processing method realization by effects on surface, such as etching, laser engraving, impression etc.So-called engraving method comprises the steps: first to cover layer protecting film at exiting surface; Secondly, make a plate, develop by exposure, diaphragm removal that will etching area; Finally, add chemical solution in the region of removing diaphragm, to reach the effect of dissolved corrosion, thereby form concave point.
in addition, those skilled in the art also can do other and change in spirit of the present invention, as long as it does not depart from technique effect of the present invention and all can.The variation that these do according to spirit of the present invention, within all should being included in the present invention's scope required for protection.
Claims (7)
1. one kind scribbles the LED light-emitting device of dyestuff, comprise at least one light source, the plate body being formed by transparent material, this plate body comprises exiting surface and incidence surface, light source and incidence surface are oppositely arranged, several microstructures distribute on this exiting surface, described microstructure scribbles dyestuff, for absorbing the light different from this dye colour, it is characterized in that: described microstructure is to have the salient point of multiple, described light source is for switchably providing the monochromatic light of at least two kinds of different colours, described dyestuff is the dyestuff that is coated in the different colours of each of multiple of described microstructure, the monochromatic color of at least two kinds of different colours described in the color of described dyestuff is selected from, the light color difference that observer is observed at diverse location.
2. according to a kind of LED light-emitting device that scribbles dyestuff claimed in claim 1, it is characterized in that: described plate body is rectangular structure, described incidence surface is positioned at a bottom surface of rectangular parallelepiped, and described exiting surface is positioned at another bottom surface with respect to this incidence surface on rectangular parallelepiped.
3. according to a kind of LED light-emitting device that scribbles dyestuff claimed in claim 1, it is characterized in that: described plate body is rectangular structure, and described incidence surface is positioned at the side of rectangular parallelepiped, described exiting surface is positioned at a bottom surface of rectangular parallelepiped.
4. according to a kind of LED light-emitting device that scribbles dyestuff described in claim 1 or 2, it is characterized in that: the material of described plate body is the one in polymethylmethacrylate, polycarbonate, resin material, glass, organosilicon, epoxy resin.
5. according to a kind of LED light-emitting device that scribbles dyestuff claimed in claim 4, it is characterized in that: described light source comprises at least one monochromatic light solid-state light emitting element.
6. according to a kind of LED light-emitting device that scribbles dyestuff claimed in claim 5, it is characterized in that: described monochromatic light solid-state light emitting element is one of ruddiness, orange light, gold-tinted, green glow, indigo light, blue light, purple LED.
7. according to a kind of LED light-emitting device that scribbles dyestuff claimed in claim 6, it is characterized in that: described dyestuff is transmission dyes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210482159.2A CN102943970B (en) | 2012-11-25 | 2012-11-25 | Light-emitting diode (LED) emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210482159.2A CN102943970B (en) | 2012-11-25 | 2012-11-25 | Light-emitting diode (LED) emitting device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410202700.9A Division CN103939833B (en) | 2012-11-25 | 2012-11-25 | LED light emitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102943970A CN102943970A (en) | 2013-02-27 |
| CN102943970B true CN102943970B (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210482159.2A Active CN102943970B (en) | 2012-11-25 | 2012-11-25 | Light-emitting diode (LED) emitting device |
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| Country | Link |
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| CN (1) | CN102943970B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062665C (en) * | 1994-01-27 | 2001-02-28 | 匡敖生 | Photoconductive indicator |
| CN1252668C (en) * | 2000-01-06 | 2006-04-19 | 皇家菲利浦电子有限公司 | Luminaire and light-emitting panel |
| RU2001125705A (en) * | 2001-02-23 | 2004-01-10 | Валерий Николаевич Бурцев (UA) | Device for displaying information |
| WO2003091973A1 (en) * | 2002-04-25 | 2003-11-06 | Zhongyi Yang | Image display device with microlight sources and soft light panel |
| CN101471006A (en) * | 2007-12-26 | 2009-07-01 | 富士迈半导体精密工业（上海）有限公司 | Luminous panel |
| CN101469825B (en) * | 2007-12-26 | 2011-08-24 | 富士迈半导体精密工业（上海）有限公司 | Luminating panel |
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- 2012-11-25 CN CN201210482159.2A patent/CN102943970B/en active Active
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Owner name: HANGZHOU WUSHI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HAN SHAOQING Effective date: 20140729 Owner name: STATE GRID CORPORATION OF CHINA BAICHENG POWER SUP Effective date: 20140729 |
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Inventor after: Ai Lisheng Inventor after: Geng Yunxiu Inventor after: Kang Ke Inventor after: Qin Fan Inventor after: Wu Hao Inventor after: Zhao Guoqing Inventor before: Han Shaoqing |
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Free format text: CORRECT: INVENTOR; FROM: HAN SHAOQING TO: AI LISHENG GENG YUNXIU KANG KE QIN FAN WU HAO ZHAO GUOQING Free format text: CORRECT: ADDRESS; FROM: 315000 NINGBO, ZHEJIANG PROVINCE TO: 311100 HANGZHOU, ZHEJIANG PROVINCE |
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