WO2015055007A1 - 照明装置及其制作方法 - Google Patents
照明装置及其制作方法 Download PDFInfo
- Publication number
- WO2015055007A1 WO2015055007A1 PCT/CN2014/078355 CN2014078355W WO2015055007A1 WO 2015055007 A1 WO2015055007 A1 WO 2015055007A1 CN 2014078355 W CN2014078355 W CN 2014078355W WO 2015055007 A1 WO2015055007 A1 WO 2015055007A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- luminescent coating
- light source
- light
- lighting device
- substrate
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 238000005286 illumination Methods 0.000 title abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 134
- 239000000758 substrate Substances 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims description 130
- 238000005538 encapsulation Methods 0.000 claims description 13
- 150000004645 aluminates Chemical class 0.000 claims description 7
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 6
- 238000004528 spin coating Methods 0.000 claims description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 5
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 5
- 238000007639 printing Methods 0.000 claims description 4
- 238000007650 screen-printing Methods 0.000 claims description 4
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims 2
- -1 rare earth ions Chemical class 0.000 claims 2
- 150000004760 silicates Chemical class 0.000 claims 2
- 239000007921 spray Substances 0.000 claims 2
- 229910001428 transition metal ion Inorganic materials 0.000 claims 2
- 239000010410 layer Substances 0.000 description 16
- 238000002156 mixing Methods 0.000 description 11
- 230000005284 excitation Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- 238000010893 electron trap Methods 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 229910052693 Europium Inorganic materials 0.000 description 2
- 229910052772 Samarium Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000005283 ground state Effects 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 238000002207 thermal evaporation Methods 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/351—Thickness
Definitions
- Embodiments of the present invention relate to a lighting device and a method of fabricating the same. Background technique
- the organic light emitting diode can easily form a planar or curved light source on a planar substrate and a flexible substrate, and has the advantages of low energy consumption, and can replace the point source, the line source, the light guide plate, and the diffusion film to form a surface light source.
- Ways to achieve a white surface light source include mixing red, green, and blue light (RGB) or mixing yellow and blue light (YB) to obtain white light.
- RGB red, green, and blue light
- YB yellow and blue light
- an OLED unit that emits these color lights can be used, and the light emitted by each OLED unit is mixed to generate white light. It is also possible to use an OLED unit that emits short-wavelength light to cause light of a short wavelength to excite the light-emitting layer, so that the light-emitting layer emits light of a long wavelength, and the long-wavelength light is remixed to form white light.
- the blue light emitted by the blue OLED excites the red light emitting coating and the green light emitting coating to respectively generate red light and green light, and the red light and the green light are mixed with the blue light to generate white light; or the blue light emitted by the blue OLED
- the yellow light emitting coating is excited to produce yellow light which is then mixed with the blue light to produce white light.
- High-energy short-wavelength light excites lower-energy, longer-wavelength light, and photons are used to generate photons.
- At least one embodiment of the present invention provides a lighting device and a method of fabricating the same that enable emergency lighting without power.
- At least one embodiment of the present invention provides an illumination device comprising: a substrate, a light source on the substrate, and a luminescent coating.
- the light source emits light having a wavelength less than a wavelength at which the luminescent coating is excited to emit light, and the light emitted by the light source excites the luminescent coating to emit light, and the luminescent coating is a material having a long afterglow characteristic.
- the light source is located above the substrate, and the luminescent coating is located Above the light source, the light exiting surface of the light source faces the luminescent coating.
- the illumination device further includes a transparent encapsulation layer over the luminescent coating.
- the luminescent coating is on the substrate, and the substrate is a transparent substrate, the light source is located on the luminescent coating, and a light emitting surface of the light source faces the Luminous coating.
- the illumination device further includes an encapsulation layer over the luminescent coating.
- At least one embodiment of the present invention also provides a method of fabricating a lighting device, the method comprising forming a light source and a luminescent coating on a substrate.
- the light source emits light having a wavelength less than a wavelength at which the luminescent coating is excited to emit light, and the light emitted by the light source excites the luminescent coating to emit light, and the luminescent coating is a material having a long afterglow characteristic.
- the light source is formed on the substrate such that a light exiting surface of the light source faces away from the substrate; and the light emitting coating is formed on a light exiting surface of the light source.
- a transparent encapsulation layer is formed.
- the method comprises: forming the luminescent coating on the substrate, the substrate being a transparent substrate; forming a light source over the luminescent coating to illuminate the illuminating surface of the light source Facing the luminescent coating.
- the method forms light over the luminescent coating
- An encapsulation layer is formed over the light source.
- FIG. 1 is a schematic structural view of a lighting device according to an embodiment of the present invention.
- FIG. 2 is a schematic structural view of a lighting device according to an embodiment of the present invention.
- FIG. 3 is a schematic structural view of a lighting device according to another embodiment of the present invention.
- FIG. 4 is a schematic structural view of a lighting device according to another embodiment of the present invention. detailed description
- At least one embodiment of the present invention provides a lighting device comprising: a substrate, a light source on the substrate, and a luminescent coating having long afterglow characteristics.
- the wavelength at which the light source emits light is less than the wavelength at which the light-emitting coating is excited to emit light, and the light emitted by the light source excites the luminescent coating to emit light. Since the luminescent coating is a long afterglow material, it can emit light in an emergency without power.
- a white light illumination device that emits light can be used as an example, and a blue light source (which may be a blue OLED with a blue wavelength of less than 450 nm) can be used to excite green light.
- a coating and a red light-emitting coating to emit green light (wavelengths of 530 to 580 nm) and red light (wavelength of 600 to 650 nm), respectively, and the excited green and red light is mixed with the blue light emitted by the blue light source.
- the illumination device includes a substrate 110, and includes a blue light source 120 over the substrate 110 and a luminescent coating over the blue light source 120.
- the luminescent coating is: a green luminescent coating 131 and a red luminescent coating 132.
- the light-emitting surface of the blue light source 120 faces the green light-emitting coating 131 and the red light-emitting coating 132.
- the green light-emitting coating 131 and the red light-emitting coating 132 do not completely cover the light-emitting surface of the blue light source 120.
- the green light-emitting coating 131 and the red light-emitting coating 132 are excited, and the green light-emitting coating 131 and the red light-emitting coating 132 can completely cover the light-emitting surface of the blue light source 120.
- a transparent encapsulation layer 140 over the green light-emitting coating 131 and the red light-emitting coating 132 is also included.
- the transparent encapsulation layer 140 is capable of allowing light to pass through.
- a plurality of structures for uniformly mixing the light may be disposed in the transparent encapsulation layer 140, and the structure for uniformly mixing the light may be a light mixing structure in the light guide plate similar to the backlight of the liquid crystal display device.
- a single light mixing may be separately formed on the side of the transparent encapsulation layer 140 facing the luminescent coating or facing away from the luminescent coating. Floor.
- the luminescent coating may also replace the green luminescent coating 131 and the red luminescent coating 132 with a yellow luminescent coating 133.
- the luminescent coating is a material having a long afterglow characteristic, and may be, for example, a silicic acid including a doped rare earth (e.g., Eu, Sm or Ce, etc.) ions. a salt, an aluminate or a carbonate; or a silicate, aluminate or carbonate doped with a transition metal (Cu or Mn, etc.), or any combination thereof.
- a silicic acid including a doped rare earth (e.g., Eu, Sm or Ce, etc.) ions.
- the luminescent coating is too thin, the red-green light (or yellow light) is excited, the red-green light is too weak, and if the luminescent coating is too thick, the red-green light (or yellow light) penetrates. The path is too long and the light that is ultimately penetrated is also weak.
- the luminescent coating may have a thickness of 0.5 to 100 ⁇ m.
- the luminescence during this period is generated without external photoelectric excitation, which is often said afterglow.
- the long afterglow material has a high trap concentration and a moderate trap depth, so that the electrons trapped by the electron trap after excitation can escape the trap back-excitation light with a certain probability, and the afterglow illumination can be made to last for several hours.
- At least one embodiment of the present invention provides a method of fabricating a lighting device, forming a light source and a corresponding luminescent coating on a substrate, and causing the light source to emit light having a wavelength less than a wavelength at which the luminescent coating is excited to emit light.
- the light emitted by the light source excites the luminescent coating to emit light.
- a light source is formed on the substrate, and since the illumination device of the present embodiment emits light, the light-emitting surface of the light source is directed away from the substrate.
- the light source may be a blue OLED light source, and the blue OLED may be fluorescent light or phosphorescent light emitting, and may be a single light emitting layer structure of a common structure, a multi light emitting layer structure, or a stacked structure in which a plurality of cells are connected in series.
- the organic layer material in the light source may be a small molecule or a polymer; the way of fabricating the OLED structure is, for example, vacuum thermal evaporation, inkjet printing, spin coating or
- the electrode of the OLED structure may be one of metals such as Ag, Mg, and A1, or an alloy thereof, or may be a conductive metal oxide such as indium tin oxide or tin oxide.
- the luminescent coating does not completely cover the light exiting surface of the light source.
- the luminescent coating is formed by spin coating, jet printing or screen printing in a corresponding area of the light exit surface of the light source.
- At least another embodiment of the present invention also provides a structure of an illumination device that emits light, as in the case of white light.
- the illumination device includes a substrate 210, a luminescent coating over the substrate 210, and a blue light source 220 over the luminescent coating.
- the luminescent coating is: a green luminescent coating 231 and a red luminescent coating 232.
- the light-emitting surface of the blue light source 220 faces the green light-emitting coating 231 and the red light-emitting coating 232, and the green light-emitting coating 231 and the red light-emitting coating 232 are incomplete.
- the light emitting surface of the blue light source 220 is covered. If it is not necessary to emit white light, only the green light-emitting coating 231 and the red light-emitting coating 232 are illuminated, and the green light-emitting coating 231 and the red light-emitting coating 232 can completely cover the light-emitting surface of the blue light source 220. Since the luminescent coating is between the substrate and the light source, i.e., the illumination device is bottom-emitting, the substrate 210 is a transparent substrate. The transparent substrate is capable of permeable to light.
- a plurality of structures for uniformly mixing the light may be disposed in the transparent substrate, and the structure for uniformly mixing the light may be similar to the liquid crystal display device.
- a light mixing layer may also be separately formed on the side of the transparent substrate facing the luminescent coating or facing away from the luminescent coating.
- an encapsulation layer 240 may also be provided over the blue light source 220.
- 4 is a schematic structural view of a lighting device according to at least one embodiment of the present invention. As shown in Fig. 4, in order to emit white light, the luminescent coating may also replace the green luminescent coating 231 and the red luminescent coating 232 with a yellow luminescent coating 233.
- the luminescent coating in order to continue to provide a light source after the breakpoint, has a long afterglow property, and may be, for example, a silicate or an alumina which includes ions doped with rare earth (such as Eu, Sm or Ce). a salt or carbonate; or a silicate, aluminate or carbonate doped with a transition metal (Cu or Mn, etc.), or any combination thereof.
- the luminescent coating may have a thickness of 0.5 to 100 ⁇ m.
- the real The principle of illumination of the embodiment is the same as that of the above embodiment of the present invention, and details are not described herein again.
- At least another embodiment of the present invention provides a method of fabricating a lighting device, forming a light source and a corresponding luminescent coating on a substrate, and causing the light source to emit light at a wavelength less than that emitted by the luminescent coating. At a wavelength, the light emitted by the light source excites the luminescent coating to emit light.
- a luminescent coating having a long afterglow characteristic is formed on a transparent substrate, for example, by spin coating, jet printing or screen printing in a corresponding region of the transparent substrate.
- a light source is formed over the luminescent coating such that the light exiting surface of the light source faces the luminescent coating.
- the light source may be a blue OLED light source, and the blue OLED may be a fluorescent light emitting device or a phosphorescent light emitting device, and may be a single light emitting layer structure of a common structure, a multi light emitting layer structure, or a stacked structure in which a plurality of cells are connected in series;
- the organic layer material may be a small molecule or a polymer; the method for fabricating the OLED structure is, for example, vacuum thermal evaporation, inkjet printing, spin coating or mixing in the above manner; the electrodes of the OLED structure may be Ag, Mg, A1, etc.
- One type of metal, or an alloy thereof, may also be a conductive metal oxide such as indium tin oxide or tin oxide.
- High-energy short-wavelength light excites light with a longer energy wavelength, photons are generated by photons, because the wavelength becomes longer, so called down-conversion), and the light source that emits short-wavelength light emits light to emit long-wavelength light.
- the long afterglow luminescent coating emits light, and the luminescent coating that is excited in the absence of a power source can continue to illuminate for a period of time, achieving emergency lighting in the event of a power failure.
- the illumination device provided by some embodiments of the present invention is a white light illumination device, but the invention is not limited to a white light illumination device.
- Other embodiments can be obtained by changing the illuminating coating of the source and the long afterglow characteristics to mix the two to produce different chromatic colors, or to illuminate the luminescent coating by the source to produce different chromatic colors.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/416,348 US20160005796A1 (en) | 2013-10-18 | 2014-05-24 | Illuminating device and manufacturing method thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310492795.8 | 2013-10-18 | ||
CN201310492795.8A CN103545458B (zh) | 2013-10-18 | 2013-10-18 | 照明装置及其制作方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015055007A1 true WO2015055007A1 (zh) | 2015-04-23 |
Family
ID=49968708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2014/078355 WO2015055007A1 (zh) | 2013-10-18 | 2014-05-24 | 照明装置及其制作方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20160005796A1 (zh) |
CN (1) | CN103545458B (zh) |
WO (1) | WO2015055007A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108916664A (zh) * | 2018-06-13 | 2018-11-30 | 西安理工大学 | 椭球状太阳光储光照明装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103545458B (zh) * | 2013-10-18 | 2019-06-11 | 京东方科技集团股份有限公司 | 照明装置及其制作方法 |
CN111244316A (zh) * | 2020-04-03 | 2020-06-05 | 安徽中益新材料科技有限公司 | 一种延时发光的面光源dfled灯具的制备方法 |
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2013
- 2013-10-18 CN CN201310492795.8A patent/CN103545458B/zh active Active
-
2014
- 2014-05-24 US US14/416,348 patent/US20160005796A1/en not_active Abandoned
- 2014-05-24 WO PCT/CN2014/078355 patent/WO2015055007A1/zh active Application Filing
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CN1674309A (zh) * | 2004-03-23 | 2005-09-28 | 杨越培 | 一种长余辉发光二极管及制作方法 |
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CN101241833A (zh) * | 2008-03-05 | 2008-08-13 | 江苏鑫田电子科技有限公司 | 长余辉高频无极灯 |
CN101752483A (zh) * | 2008-12-15 | 2010-06-23 | 富士迈半导体精密工业(上海)有限公司 | 发光二极管 |
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CN202940237U (zh) * | 2012-04-06 | 2013-05-15 | 隆达电子股份有限公司 | 长余辉发光二极管封装结构 |
CN103545458A (zh) * | 2013-10-18 | 2014-01-29 | 京东方科技集团股份有限公司 | 照明装置及其制作方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108916664A (zh) * | 2018-06-13 | 2018-11-30 | 西安理工大学 | 椭球状太阳光储光照明装置 |
CN108916664B (zh) * | 2018-06-13 | 2020-04-21 | 西安理工大学 | 椭球状太阳光储光照明装置 |
Also Published As
Publication number | Publication date |
---|---|
US20160005796A1 (en) | 2016-01-07 |
CN103545458B (zh) | 2019-06-11 |
CN103545458A (zh) | 2014-01-29 |
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