CN102261581A - Planar light emitting device - Google Patents
Planar light emitting device Download PDFInfo
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- CN102261581A CN102261581A CN2010101933883A CN201010193388A CN102261581A CN 102261581 A CN102261581 A CN 102261581A CN 2010101933883 A CN2010101933883 A CN 2010101933883A CN 201010193388 A CN201010193388 A CN 201010193388A CN 102261581 A CN102261581 A CN 102261581A
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- emission apparatus
- planar emission
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Abstract
The invention discloses a planar light emitting device which comprises a light guide assembly, a plurality of micro structures, a reflection layer and a photo conversion material, wherein the light guide assembly is provided with a first surface and a second surface; the micro structures are formed on the first surface; the reflection layer is coated on the first surface; and the photo conversion material is arranged in the micro structures.
Description
Technical field
The invention relates to a kind of planar emission apparatus, particularly relevant for a kind of planar emission apparatus that utilizes leaded light component to adjust the light dispersion angle.
Background technology
See also Fig. 1, be to utilize a plurality of blue illumination light source 10 in the known planar emission apparatus as luminescence component, blue illumination light source 10 is that reflector bowl 12 is set in optical lens 11, and blue light-emitting diode (blue-ray LED) 13 is arranged in the reflector bowl 12, fill light-converting material 14 more thereon, to produce high efficiency white light source, but, therefore cause the Huang circle/blue vignette-out around light class existing owing to be easy to generate the error that the position cooperates between blue-ray LED 13, light-converting material 14 and the optical lens 11.
See also Fig. 2, known planar emission apparatus also uses another kind of blue illumination light source 10 ' as luminescence component, blue illumination light source 10 ' is that reflector bowl 12 ' is set in optical lens 11 ', and blue light-emitting diode (blue-ray LED) 13 ' is arranged in the reflector bowl 12 ', on blue-ray LED 13 ', directly stick light conversion layer 14 ' again, yet, the high-temperature stability of light conversion layer 14 ' is not good, with situation that blue-ray LED 13 ' directly contacts under, can quicken to lower the material lifetime of light conversion layer 14 ', make the color of blue illumination light source 10 ' become blue gradually along with the time.
Summary of the invention
The object of the present invention is to provide a kind of planar emission apparatus,, can not cause the dizzy phenomenon of hot spot Huang circle/indigo plant on every side simultaneously to increase the life-span of light-converting material.
For achieving the above object, planar emission apparatus provided by the invention comprises:
One leaded light component has a first surface and a second surface;
A plurality of micro-structurals are formed on this first surface;
This first surface is coated in one reflecting layer; And
Light-converting material is arranged in those micro-structurals.
Described planar emission apparatus, wherein each micro-structural has a pyramid shape, a parabola, an ellipsoidal surface or a curved surface, and this light-converting material concentrates on the center part of each micro-structural.
Described planar emission apparatus, wherein each micro-structural has a parabolic or ellipsoidal surface, and this light-converting material is distributed near this parabola or the focus of this ellipsoidal surface.
Described planar emission apparatus, wherein this light-converting material comprises organic phosphorescent material, inorganic phosphor material, quantum dot, optical semiconductor conversion layer or electroluminescence material.
Described planar emission apparatus, wherein this optical semiconductor conversion layer is a plural layer.
Described planar emission apparatus, wherein this leaded light component is soft or hard transparent material is made.
Described planar emission apparatus, wherein each micro-structural has a tangent plane, and this planar emission apparatus comprises a reflection subassembly, is covered in this tangent plane, and this light-converting material is arranged on this reflection subassembly.
Described planar emission apparatus comprising an optical texture, is arranged at a side of this second surface of this leaded light component.
Described planar emission apparatus, wherein each micro-structural has a tangent plane, and this planar emission apparatus comprises an optical texture, is arranged at the tangent plane of this micro-structural, and this light-converting material is arranged on this optical texture.
Described planar emission apparatus comprising a reflection subassembly, is arranged at this second surface.
Described planar emission apparatus comprising a luminescence component, is arranged at a side of this leaded light component.
In planar emission apparatus of the present invention, luminescence component is away from light-converting material, and it not only can increase the life-span of light-converting material, also can not cause the dizzy phenomenon of hot spot Huang circle/indigo plant on every side, cooperate setting and the arrangement mode of micro-structural in addition again, can improve the utilization ratio of light source in conjunction with the reflecting layer.
Description of drawings
Fig. 1 and Fig. 2 show known planar emission apparatus;
Fig. 3 A shows the schematic diagram of one first embodiment of planar emission apparatus of the present invention;
Fig. 3 B shows A enlarged drawing partly among Fig. 3 A;
Fig. 4 A shows the schematic diagram of one second embodiment of planar emission apparatus of the present invention;
Fig. 4 B shows that one of Fig. 4 A midplane light-emitting device changes the schematic diagram of example;
Fig. 5 shows the schematic diagram of one the 3rd embodiment of planar emission apparatus of the present invention; And
Fig. 6 to Fig. 8 shows that planar emission apparatus of the present invention changes the schematic diagram of example.
Primary clustering symbol description in the accompanying drawing:
10,10 ' blue illumination light source; 11 optical lenses; 12 reflector bowls; 13,13 ' blue-ray LED; 14,14 ' light-converting material; 100 planar emission apparatus; 101 planar emission apparatus; 101 ' planar emission apparatus; 102 planar emission apparatus; 110,110 " leaded light component; The 110E luminescence component; 111,111 " first surface; 112,112 " second surface; 120,120 ', 120 " micro-structural; 120C, 120C " tangent plane; 130,130 " reflecting layer; 140,140 " light-converting material; The 140a light-converting material; The 140b light-converting material; 141 light conversion layers; 142 light conversion layers; 143 light conversion layers; 150,150 " optical texture; 160,160 ' reflection subassembly.
The specific embodiment
Planar emission apparatus of the present invention comprises a leaded light component, a plurality of micro-structural, a reflecting layer and a light-converting material.Leaded light component has a first surface and a second surface.Micro-structural is formed on the first surface, and first surface is coated in the reflecting layer, and light-converting material is arranged in those micro-structurals.
For the present invention can be become apparent, cited below particularlyly go out preferred embodiment, and conjunction with figs. elaborates.
First embodiment
Fig. 3 A shows the schematic diagram of one first embodiment of planar emission apparatus of the present invention, Fig. 3 B shows A enlarged drawing partly among Fig. 3 A, referring to Fig. 3 A, Fig. 3 B, planar emission apparatus 100 of the present invention comprises a leaded light component 110, a plurality of micro-structural 120, a reflecting layer 130, light-converting material 140, an optical texture 150 and luminescence component 100E.
As shown in Figure 3A, luminescence component 100E can be a ultraviolet light-emitting diodes (LED) or a CCFL (CCFL), be arranged at the both sides of leaded light component 110, shown in Fig. 3 B, leaded light component 110 has a first surface 111 and a second surface 112 relative with first surface 111, should be noted that among this embodiment that second surface 112 is exiting surface, and leaded light component 110 can be optionally and made by hard material or soft material.A plurality of micro-structurals 120 are arranged on the first surface 111, wherein each micro-structural 120 has a parabola, it is to extend outstanding to the outside by first surface 111, first surface 111 is coated in reflecting layer 130, promptly coat on the parabola of micro-structural 120, and light-converting material 140 is arranged in the micro-structural 120, and be distributed near the paraboloidal focus, wherein light-converting material 140 can comprise passive type luminescent materials such as organic phosphorescent material, inorganic phosphor material, quantum dot, optical semiconductor conversion layer or electroluminescence material.
It should be noted, in present embodiment, each micro-structural 120 has a parabola, but is not limited thereto, and micro-structural 120 can also have a pyramid surface, a parabola, an ellipsoidal surface or a curved surface, and when micro-structural is above-mentioned shape, light-converting material 140 is the center parts that concentrate on each micro-structural, and in addition, micro-structural 120 can also be an ellipsoidal surface, when micro-structural was ellipsoidal surface, light-converting material 140 also was distributed near the focus of ellipsoidal surface.
Second embodiment
Fig. 4 A shows the schematic diagram of one second embodiment of planar emission apparatus of the present invention, shown in Fig. 4 A, different with first embodiment is, in planar emission apparatus 101, each micro-structural 120 ' has a tangent plane 120C, and planar emission apparatus 101 also comprises a reflection subassembly 160, and reflection subassembly 160 covers tangent plane 120C, and light-converting material 140 is arranged on this reflection subassembly 160.In addition, Fig. 4 B shows that one of Fig. 4 A midplane light-emitting device changes the schematic diagram of example, and in planar emission apparatus 101 ', reflection subassembly 160 ' also can be formed with the mode of reflecting layer 130 by plated film.
In this embodiment, light-converting material 140 can be in reflection subassembly 160,160 ' generation one mirror image, this mirror image results from the paraboloidal focus of micro-structural 120 ', therefore make and reflex to reflecting layer 130 and reflection subassembly 160,160 ' light by light-converting material 140, via the reflection in reflecting layer 130, can also reach the low-angle effect (shown in arrow among Fig. 4 A, Fig. 4 B) that penetrates leaded light component 110 by second surface 112 again.
The 3rd embodiment
Fig. 5 shows the schematic diagram of one the 3rd embodiment of planar emission apparatus of the present invention, different with above-mentioned second embodiment is, in this planar emission apparatus 102, each micro-structural 120 " be to be depressed in leaded light component 110 " first surface 111 "; should be noted that first surface 111 among this embodiment " for exiting surface, and each micro-structural 120 " have a tangent plane 120C equally ", reflecting layer 130 " coat first surface 111 equally ", just micro-structural 120 " parabola on; optical texture 150 " be arranged at micro-structural 120 respectively " tangent plane 120C " on, light-converting material 140 " then be arranged at optical texture 150 " on, and reflection subassembly 160 " then be arranged at second surface 112 ".
In this embodiment, light can be by reflection subassembly 160 " reflection penetrates optical texture 150 ", and exciting light transition material 140 ", again by micro-structural 120 " in reflecting layer 130 " with the low-angle leaded light component 110 that reflects of light " (shown in arrow among Fig. 5).
In addition, Fig. 6 to Fig. 8 shows that planar emission apparatus of the present invention changes the schematic diagram of example, referring to Fig. 6, change in the example in one, can utilize the micro-structural 120 of inhomogeneous arrangement to cooperate different demands can reach the effect of even bright dipping, referring to Fig. 7, change in the example at another, light-converting material 140a can comprise a plurality of optical semiconductor conversion layers 141 that reflect different wave length, 142,143, with the lifting optical conversion efficiencies, or, referring to Fig. 8, light-converting material 140b (the light conversion layer 141 of different aspects can be set respectively in each micro-structural 120,142,143), its arrangement that mixes or coating method all can be reached uniform colour mixture effect.
The above only is preferred embodiment of the present invention, when not limiting scope of the invention process with this, promptly the simple equivalent of being done according to the interest field and the invention description content of the present patent application generally changes and modifies, and all still belongs in the scope that claim of the present invention contains.The interest field of arbitrary embodiment of the present invention in addition or application must not reached disclosed characteristics.In addition, summary part and title only are to be used for auxiliary patent document search usefulness, are not to be used for limiting claim scope of the present invention.
Claims (11)
1. planar emission apparatus comprises:
One leaded light component has a first surface and a second surface;
A plurality of micro-structurals are formed on this first surface;
This first surface is coated in one reflecting layer; And
Light-converting material is arranged in those micro-structurals.
2. planar emission apparatus as claimed in claim 1, wherein, each micro-structural has a pyramid shape, a parabola, an ellipsoidal surface or a curved surface, and this light-converting material concentrates on the center part of each micro-structural.
3. planar emission apparatus as claimed in claim 1, wherein, each micro-structural has a parabolic or ellipsoidal surface, and this light-converting material is distributed near this parabola or the focus of this ellipsoidal surface.
4. planar emission apparatus as claimed in claim 1, wherein, this light-converting material comprises organic phosphorescent material, inorganic phosphor material, quantum dot, optical semiconductor conversion layer or electroluminescence material.
5. planar emission apparatus as claimed in claim 4, wherein, this optical semiconductor conversion layer is a plural layer.
6. planar emission apparatus as claimed in claim 1, wherein, this leaded light component is soft or hard transparent material is made.
7. planar emission apparatus as claimed in claim 1, wherein, each micro-structural has a tangent plane, and this planar emission apparatus comprises a reflection subassembly, is covered in this tangent plane, and this light-converting material is arranged on this reflection subassembly.
8. planar emission apparatus as claimed in claim 1 wherein, comprises an optical texture, is arranged at a side of this second surface of this leaded light component.
9. planar emission apparatus as claimed in claim 1, wherein, each micro-structural has a tangent plane, and this planar emission apparatus comprises an optical texture, is arranged at the tangent plane of this micro-structural, and this light-converting material is arranged on this optical texture.
10. planar emission apparatus as claimed in claim 9 wherein, comprises a reflection subassembly, is arranged at this second surface.
11. planar emission apparatus as claimed in claim 1 wherein, comprises a luminescence component, is arranged at a side of this leaded light component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101933883A CN102261581A (en) | 2010-05-27 | 2010-05-27 | Planar light emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101933883A CN102261581A (en) | 2010-05-27 | 2010-05-27 | Planar light emitting device |
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| Publication Number | Publication Date |
|---|---|
| CN102261581A true CN102261581A (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101933883A Pending CN102261581A (en) | 2010-05-27 | 2010-05-27 | Planar light emitting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137839A (en) * | 2013-02-19 | 2013-06-05 | 东南大学 | Slice-type white light light-emitting diode (LED) packaging structure |
| CN104160206A (en) * | 2012-01-04 | 2014-11-19 | 标致·雪铁龙汽车公司 | Light guide and vehicle with such a light guide |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5961198A (en) * | 1996-02-02 | 1999-10-05 | Hitachi, Ltd. | Liquid crystal display device and method of manufacturing backlighting light guide panel therefor |
| US20060001036A1 (en) * | 2004-07-02 | 2006-01-05 | Gelcore, Llc | LED-based edge lit illumination system |
| US20060103589A1 (en) * | 2004-11-18 | 2006-05-18 | Chua Janet Bee Y | Device and method for providing illuminating light using quantum dots |
| CN101440935A (en) * | 2007-11-20 | 2009-05-27 | 财团法人工业技术研究院 | Light guide board and illuminating device thereof |
-
2010
- 2010-05-27 CN CN2010101933883A patent/CN102261581A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5961198A (en) * | 1996-02-02 | 1999-10-05 | Hitachi, Ltd. | Liquid crystal display device and method of manufacturing backlighting light guide panel therefor |
| US20060001036A1 (en) * | 2004-07-02 | 2006-01-05 | Gelcore, Llc | LED-based edge lit illumination system |
| US20060103589A1 (en) * | 2004-11-18 | 2006-05-18 | Chua Janet Bee Y | Device and method for providing illuminating light using quantum dots |
| CN101440935A (en) * | 2007-11-20 | 2009-05-27 | 财团法人工业技术研究院 | Light guide board and illuminating device thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104160206A (en) * | 2012-01-04 | 2014-11-19 | 标致·雪铁龙汽车公司 | Light guide and vehicle with such a light guide |
| CN103137839A (en) * | 2013-02-19 | 2013-06-05 | 东南大学 | Slice-type white light light-emitting diode (LED) packaging structure |
| CN103137839B (en) * | 2013-02-19 | 2015-12-02 | 东南大学 | A kind of sheet type White-light LED package structure |
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Application publication date: 20111130 |