WO2011004795A1 - Dispositif électroluminescent - Google Patents

Dispositif électroluminescent Download PDF

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Publication number
WO2011004795A1
WO2011004795A1 PCT/JP2010/061423 JP2010061423W WO2011004795A1 WO 2011004795 A1 WO2011004795 A1 WO 2011004795A1 JP 2010061423 W JP2010061423 W JP 2010061423W WO 2011004795 A1 WO2011004795 A1 WO 2011004795A1
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WO
WIPO (PCT)
Prior art keywords
light
wavelength
transmission filter
short
emitting device
Prior art date
Application number
PCT/JP2010/061423
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English (en)
Japanese (ja)
Inventor
猛 宮下
弘一 鈴木
Original Assignee
シーシーエス株式会社
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Filing date
Publication date
Application filed by シーシーエス株式会社 filed Critical シーシーエス株式会社
Priority to JP2010537184A priority Critical patent/JPWO2011004795A1/ja
Publication of WO2011004795A1 publication Critical patent/WO2011004795A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50—Wavelength conversion elements
    • H01L33/507—Wavelength conversion elements the elements being in intimate contact with parts other than the semiconductor body or integrated with parts other than the semiconductor body
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/44—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating

Definitions

  • the present invention efficiently converts ultraviolet light and short-wavelength visible light into long-wavelength visible light, and can efficiently extract the converted visible light, and also has moisture resistance and heat dissipation.
  • the present invention relates to an excellent light emitting device.
  • a light-emitting device that emits light of a color different from the emission color of LED elements including white has been developed by combining LED elements that emit ultraviolet rays and short-wavelength visible light and various phosphors ( Patent Document 1).
  • Such a light emitting device using an LED element has advantages such as small size, power saving and long life, and is widely used as a light source for display and a light source for illumination.
  • Examples of such a light emitting device include a device in which an LED element is mounted in the recess of the substrate on which the recess is formed, and a sealing layer that covers the LED element and a phosphor layer are laminated in this order. .
  • this light emitting device most of the ultraviolet rays and short wavelength visible light emitted from the LED elements excite the phosphor and are converted into longer wavelength visible light, but some are not absorbed by the phosphor (visible). In some cases, the phosphor layer is transmitted as it is without being converted into light.
  • the conversion efficiency of ultraviolet rays or short-wavelength visible light emitted from the LED element into longer-wavelength visible light is lowered, the light-emitting efficiency of the light-emitting device is lowered.
  • the human body may be adversely affected.
  • the LED element since the LED element has an extremely long life as compared with the conventional light source, the reflector formed on the base and its inner surface is exposed to visible light for a long time. As described above, the substrate exposed to visible light for a long time deteriorates and changes color. This also affects the emission color of the light emitting device.
  • Patent Document 2 discloses that a high refractive index layer is provided under the phosphor layer to improve the efficiency of extracting visible light.
  • a high refractive index layer is provided under the phosphor layer to improve the efficiency of extracting visible light.
  • a first optical filter whose reflectance with respect to excitation light emitted from the LED element is lower than reflectance with respect to fluorescence emitted from the phosphor is disposed between the LED element and the phosphor, It is disclosed that an opening is provided between the reflecting surface formed in the reflector recess and the first optical filter.
  • part of the fluorescence emitted by the phosphor proceeds to the bottom surface of the recess through the opening, and most of the fluorescence that has traveled to the bottom surface of the recess is The first optical filter becomes a barrier and cannot be taken out of the light emitting device. For this reason, the luminous efficiency of the light emitting device is reduced.
  • the present invention has been made in view of such problems, and efficiently converts ultraviolet rays and short-wavelength visible rays into longer-wavelength visible rays, and efficiently converts the converted visible rays outside the apparatus.
  • Providing a light-emitting device that can be taken out is a main intended problem.
  • a light-emitting device includes a base having a recess opened at an upper end surface, an LED element that is mounted on the bottom surface of the recess and emits ultraviolet rays or short-wavelength visible light, and a light emission surface side of the LED element Arranged in this order from a short wavelength transmission filter that transmits ultraviolet light and short wavelength visible light and reflects longer wavelength visible light, a wavelength conversion member containing a phosphor, and longer wavelength visible light
  • a long-wavelength transmission filter that transmits ultraviolet light and short-wavelength visible light, and is in close contact with the base so that the short-wavelength transmission filter hermetically seals the LED element in the recess. It is characterized by that. Examples of short-wavelength visible light include violet light, blue light, and green light, and ultraviolet light includes near ultraviolet light.
  • the wavelength conversion member containing the phosphor is sandwiched between the short-wavelength transmission filter and the long-wavelength transmission filter, so that ultraviolet rays or short-wavelength visible light transmitted through the wavelength conversion member. Is reflected by the long wavelength transmission filter and travels through the wavelength converting member again. For this reason, the probability that ultraviolet rays or short-wavelength visible light excites the phosphor and is converted into longer-wavelength visible light can be improved, and the amount of light emission can be increased.
  • the light traveling toward the substrate on which the LED element is mounted is the short-wavelength transmission filter.
  • ultraviolet rays and short-wavelength visible light can be efficiently converted into long-wavelength visible light, and the converted visible light can be efficiently taken out of the apparatus.
  • the wavelength conversion member can be manufactured in a separate process as a separate body from the substrate on which the LED elements are mounted by potting application to the filter, printing by die coating or ink jet method. For this reason, management of the thickness of the wavelength conversion member is facilitated. Further, using a reference light source having a predetermined wavelength and light intensity, the emission color, illuminance, and the like of the wavelength conversion member are measured, and the wavelength conversion member is classified and managed according to the result, and a desired emission color or A light emitting device having the desired performance can be produced by selecting a device having illuminance and the like and combining it with a suitable LED element, so that variations in the luminescent color, illuminance, etc. of the final light emitting device are suppressed as much as possible. Can do.
  • the visible light traveling toward the substrate on which the LED element is mounted is reflected by the short wavelength transmission filter, the visible light reaching the substrate is reduced, the deterioration of the substrate over time is suppressed, The light emission color change of the light emitting device is also suppressed.
  • the short wavelength transmission filter since the short wavelength transmission filter is in intimate contact with the base, the short wavelength transmission filter transmits heat of the wavelength conversion member and the like to the base and exhibits a heat radiation (cooling) action. Further, it is possible to satisfactorily suppress the change in the emission color of the light emitting device due to the thermal deterioration of the phosphor in the wavelength conversion member.
  • the short wavelength transmission filter hermetically seals the inside of the recess, so that gas can be prevented from entering the recess and a reflector made of a metal thin film is formed on the inner surface of the recess. Even when the metal thin film is formed, corrosion due to oxidation, sulfurization, chlorination, or the like of the metal thin film can be prevented.
  • the short wavelength transmission filter may exhibit a waterproof function.
  • the light emitting device described in Patent Document 3 since there is a gap (opening) between the concave reflecting surface of the reflector and the first optical filter, the heat of the phosphor is the first. Even if it is transmitted to the optical filter, it cannot be conducted to the reflector. For this reason, the light emitting device described in Patent Document 3 is inferior in heat dissipation performance, and it is considered that the emission color changes due to the thermal deterioration of the phosphor. Further, in the light emitting device described in Patent Document 3, since gas or moisture enters the recess from the gap (opening), the metal thin film may be corroded when the reflecting surface is made of a metal thin film.
  • those having a radiation peak at 490 nm or less are preferably used, and more preferably those having a radiation peak in the near ultraviolet region of 360 to 430 nm.
  • the short-wavelength transmission filter and the long-wavelength transmission filter have a boundary where the level of the reflectance and transmittance of the electromagnetic wave is reversed 10 nm or more larger than the emission peak wavelength of the LED element and 500 nm.
  • a dielectric multilayer film having the following wavelength region is preferable, and a dielectric multilayer film having a boundary in the wavelength region of 440 nm or less is more preferable.
  • a dielectric multilayer film is formed by selecting and laminating two or more films having different refractive indexes from a thin film made of a highly transparent substance such as a metal oxide. It is also excellent.
  • the phosphors are phosphors emitting red light (hereinafter referred to as red phosphors), phosphors emitting green light (hereinafter referred to as green phosphors). And a phosphor that emits blue light (hereinafter referred to as a blue phosphor).
  • ultraviolet rays and short-wavelength visible light can be efficiently converted into long-wavelength visible light, and the converted visible light can be efficiently taken out of the apparatus.
  • the moisture resistance and heat dissipation of a light-emitting device can also be improved.
  • the light emitting device 1 includes a base body 2 having a recess 22 that opens on an upper end surface 21, an LED element 3 mounted on a bottom surface 221 of the recess 22, and an LED element 3.
  • a transparent member 4 to be sealed, and a short wavelength transmission filter 5, a wavelength conversion member 6, and a long wavelength transmission filter 7 laminated on the transparent member 4 in this order are provided.
  • the base 2 has a recess 22 that opens to the upper end surface 21.
  • a base 2 is formed by molding an insulating material having high thermal conductivity such as alumina or aluminum nitride.
  • the base body 2 mounts an LED element 3 to be described later on the bottom surface 221 of the recess 22, and a wiring conductor (not shown) for electrically connecting the LED element 3 to the bottom surface 221. Is formed.
  • This wiring conductor is led to the outer surface of the light emitting device 1 through a wiring layer (not shown) formed inside the base 2 and connected to the external electric circuit board, whereby the LED element 3 and the external electric circuit board are connected. Are electrically connected.
  • a step portion 23 is formed on the side surface 222 of the concave portion 22 of the base 2, and a short wavelength transmission filter 5 described later is disposed on the upper end surface of the step portion 23 so that the peripheral edge portion is placed.
  • the short wavelength transmission filter 5 is configured to be positioned with respect to the base 2 both in the axial direction and in the axis orthogonal direction.
  • a metal thin film having a high reflectivity is formed on the inner surface including the side surface 222 and the bottom surface 221 of the recess 22 of the base 2 by applying metal plating such as silver, aluminum, gold, etc., and functions as a reflector. is doing.
  • the ultraviolet or visible light reflected downward by a long wavelength transmission filter 7 described later and transmitted through the wavelength conversion member 6 and the short wavelength transmission filter 5 is reflected again toward the wavelength conversion member 6 by the metal thin film. be able to.
  • the LED element 3 emits ultraviolet rays or short-wavelength visible light, and has a radiation peak at 360 to 430 nm, for example.
  • the LED element 3 is formed by laminating a gallium nitride-based compound semiconductor in the order of an n-type layer, a light-emitting layer, and a p-type layer on a sapphire substrate or a gallium nitride substrate.
  • the LED element 3 is flip-chip mounted on the bottom surface 221 of the concave portion 22 using solder bumps, gold bumps (not shown) with the gallium nitride compound semiconductor facing down (the bottom surface 221 side of the concave portion 22).
  • the translucent member 4 is filled in the concave portion 22 and seals the LED element 3.
  • the translucent member 4 is made of a silicone resin having excellent translucency and heat resistance and having a small difference in refractive index from the LED element 3. It is. When such a translucent member 4 is provided, the light extraction efficiency from the LED element 3 can be improved, and thermal deterioration of the phosphor 61 can be prevented.
  • the short-wavelength transmission filter 5 is a low-pass filter that reflects visible light and selectively transmits only electromagnetic waves from the ultraviolet region to the near-ultraviolet region, and is provided on the translucent member 4. Is in close contact with the side surface 222 of the recess 22 and hermetically seals the interior of the recess 22.
  • the short wavelength transmission filter 5 is a dielectric multilayer film in which the transmittance and reflectance of electromagnetic waves are reversed with the vicinity of 430 nm as a boundary. Such a dielectric multilayer film is formed, for example, by attaching a film material to a glass substrate or the like.
  • the wavelength conversion member 6 contains a phosphor 61 inside and is provided on the short wavelength transmission filter 5.
  • Examples of such a wavelength conversion member 6 include those in which the phosphor 61 is dispersed in a silicone resin that is excellent in translucency and heat resistance and has a small refractive index difference from the translucent member 4.
  • the concave portion 22 may be filled with an uncured silicone resin in which the phosphor 61 is dispersed, or a sheet processed into a predetermined size may be used. .
  • the phosphor 61 contained in the wavelength conversion member 6 is not particularly limited, and examples thereof include a red phosphor, a green phosphor, a blue phosphor, and a yellow phosphor. Among these, when the red phosphor, the green phosphor, and the blue phosphor are used in combination, the light emitting device 1 that emits white light can be configured.
  • a white light emitting device configured such that blue light is mixed with yellow light emitted from a yellow phosphor using an LED element that emits blue light
  • the phosphor 61 that uses a red phosphor, a green phosphor, and a blue phosphor in combination, ultraviolet rays emitted from the LED element 3 or visible light having a short wavelength.
  • the red light, the green light, and the blue light emitted from each phosphor 61 excited by the light beam are mixed to emit white light.
  • ultraviolet light and short wavelength visible light emitted from the LED element 3 are emitted from the light emitting device 1. Therefore, the above-described uneven color tone is unlikely to occur.
  • the mixed light emitted from the light emitting device 1 using the LED element 3 that emits ultraviolet rays and visible light having a short wavelength and using the red phosphor, the green phosphor, and the blue phosphor as the phosphor 61 is on the Planck locus.
  • the natural white color is very close to sunlight.
  • the long-wavelength transmission filter 7 is a high-pass filter that reflects electromagnetic waves in the ultraviolet region to the near-ultraviolet region and selectively transmits only visible light, and is provided on the wavelength conversion member 6, and the periphery thereof is a recess 22. The opening part of the recessed part 22 is covered so that the side surface 222 may be contacted.
  • the long wavelength transmission filter 7 is a dielectric multilayer film in which the reflectance and transmittance of electromagnetic waves are reversed with a vicinity of 430 nm as a boundary. Such a dielectric multilayer film is formed, for example, by attaching a film material to a glass substrate or the like.
  • the wavelength conversion member 6 containing the phosphor 61 is sandwiched between the short wavelength transmission filter 5 and the long wavelength transmission filter 7.
  • the ultraviolet rays and the short wavelength visible light U transmitted through the wavelength conversion member 6 are reflected by the long wavelength transmission filter 7 and travel through the wavelength conversion member 6 again.
  • the light traveling toward the substrate 2 is reflected by the short wavelength transmission filter 5. Then, the traveling direction is changed, the light travels toward the long wavelength transmission filter 7, passes through the filter 7, and is emitted outside the apparatus 1. Therefore, according to the light emitting device 1, the ultraviolet light or the short wavelength visible light U is efficiently converted into the long wavelength visible light V, and the converted visible light V is efficiently extracted outside the device 1. Can do.
  • the wavelength conversion member 6 can be manufactured in a separate process as a separate body from the substrate 2 on which the LED element 3 is mounted, by potting application to the filters 5 and 7, printing by die coating or inkjet method. is there. For this reason, management of the thickness of the wavelength conversion member 6 becomes easy.
  • the emission color, illuminance, and the like of the wavelength conversion member 6 are measured, and the wavelength conversion member 6 is classified and managed according to the result, and a desired emission color or Since the light emitting device 1 having the desired performance can be manufactured by selecting the one having the illuminance and the like and combining with the suitable LED element 3, the variation in the light emission color and the illuminance of the light emitting device 1 which is the final product can be reduced. It can be suppressed as much as possible.
  • the visible light V traveling toward the substrate 2 is reflected by the short wavelength transmission filter 5, the visible light V reaching the substrate 2 is reduced, and the deterioration of the substrate 2 with time is suppressed. A change in emission color of the light emitting device 1 is also suppressed.
  • the peripheral edges of the short wavelength transmission filter 5 and the long wavelength transmission filter 7 are in contact with the side surface 222 of the recess 22, the heat generated by the filters 5 and 7 from the wavelength conversion member 6 and the LED element 3. Is transmitted to the substrate 2 to exhibit a heat dissipation effect, and the change in the emission color of the light-emitting device 1 due to the thermal deterioration of the phosphor in the wavelength conversion member 6 can be satisfactorily suppressed.
  • the heat generated from the LED element 3 and the phosphor 61 can be efficiently used as a substrate. Therefore, it is possible to more effectively prevent thermal deterioration of the phosphor 61 and reduction in luminous efficiency and luminance.
  • the silicone resin which comprises the translucent member 4 and the wavelength conversion member 6 has high gas transmittance
  • the short wavelength transmission filter 5 and the long wavelength transmission filter 7 are gas and water
  • the present invention is not limited to the above embodiment.
  • the light emitting device 1 is not limited to the one shown in FIG. 1 and is mounted on the upper end surface 21 of the base 2 so that the long wavelength transmission filter 7 covers the opening of the recess 22 as shown in FIG.
  • the short wavelength transmission filter 5 may be placed on the upper end surface 21 of the base 2 so as to cover the opening of the recess 22.
  • the long wavelength transmission filter 7 is placed on the upper end surface 21 of the base 2 so as to cover the opening of the concave portion 22, and the step portion 23 has a plurality of steps.
  • the periphery of the short wavelength transmission filter 5 may be placed on the upper end surface, and the upper end surface of the upper stage may be in contact with the lower surface periphery of the wavelength conversion member 6.
  • the long wavelength transmission filter 7 is not limited to the one having the optical characteristics as shown in FIG. 3 as long as the reflectance and transmittance of the electromagnetic wave are reversed around 430 nm as a boundary. It may have optical characteristics as shown and transmit some ultraviolet rays or visible light having a short wavelength. If it is such, when it is necessary to exhibit color rendering properties by violet light, or when it is necessary to improve the heat dissipation characteristics, ultraviolet rays or short wavelengths of light reflected by the long wavelength transmission filter 7 and absorbed by the base 2 are used. This is effective when it is necessary to reduce visible light and suppress deterioration of the substrate 2.
  • the wavelength conversion member 6 does not have to be uniformly dispersed of the phosphors 61 that emit light of different colors, and is provided with fluorescent regions that emit light of different colors. Also good. That is, for example, as shown in FIG. 9, a red fluorescent region R containing a red phosphor, a green fluorescent region G containing a green phosphor, and a blue fluorescent region B containing a blue phosphor are arranged side by side in the horizontal direction. If so, the blue light emitted from the blue phosphor and the green light emitted from the green phosphor are not absorbed by the other phosphors 61, so that the energy conversion efficiency and the light extraction efficiency can be improved. . As shown in FIG. 10, in the wavelength conversion member 6, the red fluorescent region R, the green fluorescent region G, and the blue fluorescent region B may be laminated in this order from the LED element 3 side.
  • the LED element 3 may be connected to a wiring conductor provided on the base 2 using wire bonding.
  • the translucent member 4, the short wavelength transmission filter 5, the wavelength conversion member 6, and the long wavelength transmission filter 7 do not have to be in contact with each other, and a translucent heat dissipation member or the like is interposed therebetween. It may be.
  • the said translucent heat radiating member what consists of material with high heat conductivity, such as quartz, sapphire, and diamond, was excellent in translucency.
  • the translucent heat radiating member may be provided on the long wavelength transmission filter 7 to cover the opening of the recess 22.
  • the present invention is not limited to the above-described embodiments, and may be configured by appropriately combining some or all of the various configurations described above without departing from the spirit of the present invention.
  • ultraviolet rays and short-wavelength visible light are efficiently converted into longer-wavelength visible light to increase the amount of light emission, and the converted visible light is efficiently converted into a device. Can be taken out.
  • the moisture resistance and heat dissipation of a light-emitting device can also be improved.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Led Device Packages (AREA)

Abstract

La présente invention a trait à un dispositif électroluminescent au moyen duquel un rayonnement ultraviolet et un rayonnement visible de courte longueur d’onde peuvent être efficacement convertis en rayonnement visible ayant des longueurs d’onde plus grandes et pouvant être efficacement sorti vers l’extérieur du dispositif. Le dispositif électroluminescent est équipé : d’un corps de base doté d’une partie en retrait de la surface d’extrémité supérieure du corps de base ; d’un élément de diode électroluminescente qui est monté sur la surface inférieure de l’évidement et qui émet le rayonnement ultraviolet ou le rayonnement visible de courte longueur d’onde ; et d’un filtre de transmission de courte longueur d’onde, qui traverse le rayonnement ultraviolet et le rayonnement visible de courte longueur d’onde et qui réfléchit le rayonnement visible ayant les longueurs d’onde les plus grandes, d’un élément de conversion de longueur d’onde qui contient une substance fluorescente et d’un filtre de transmission de grande longueur d’onde, qui traverse le rayonnement visible ayant les longueurs d’onde les plus grandes et qui réfléchit le rayonnement ultraviolet et le rayonnement visible de courte longueur d’onde, ledit filtre de transmission de courte longueur d’onde, ledit élément de conversion de longueur d’onde et ledit filtre de transmission de grande longueur d’onde étant disposés dans cet ordre depuis le côté de la surface électroluminescente de l’élément de diode électroluminescente. Le filtre de transmission de courte longueur d’onde est collé sur le corps de base de manière à ce qu’il scelle hermétiquement l’élément de diode électroluminescente dans l’évidement.
PCT/JP2010/061423 2009-07-07 2010-07-05 Dispositif électroluminescent WO2011004795A1 (fr)

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JP2010537184A JPWO2011004795A1 (ja) 2009-07-07 2010-07-05 発光装置

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JP2009-161131 2009-07-07
JP2009161131 2009-07-07

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WO2011004795A1 true WO2011004795A1 (fr) 2011-01-13

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012053386A1 (fr) * 2010-10-21 2012-04-26 シーシーエス株式会社 Dispositif électroluminescent et son procédé de production
JP2013004814A (ja) * 2011-06-17 2013-01-07 Panasonic Corp Ｌｅｄユニット
WO2013113571A1 (fr) * 2012-01-31 2013-08-08 Osram Opto Semiconductors Gmbh Composant semi-conducteur optoélectronique doté d'un élément convertisseur
JP2013207049A (ja) * 2012-03-28 2013-10-07 Nec Corp 波長変換体を用いた発光装置
JP2013235192A (ja) * 2012-05-10 2013-11-21 Nitto Kogaku Kk 色温度変更フィルタ及び色温度変更フィルタを備えた光学モジュール
JP2014157990A (ja) * 2013-02-18 2014-08-28 Toshiba Corp 半導体発光装置
JP2019029386A (ja) * 2017-07-25 2019-02-21 日亜化学工業株式会社 発光装置及び発光装置の製造方法
JP2019079873A (ja) * 2017-10-23 2019-05-23 日亜化学工業株式会社 発光モジュールおよび集積型発光モジュール
US10374137B2 (en) * 2014-03-11 2019-08-06 Osram Gmbh Light converter assemblies with enhanced heat dissipation
US10608150B2 (en) 2017-05-31 2020-03-31 Nichia Corporation Light-emitting device and method of manufacturing same
JP2020127038A (ja) * 2012-05-14 2020-08-20 ルミレッズ ホールディング ベーフェー ナノ構造蛍光体を有する発光装置

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001501380A (ja) * 1997-05-27 2001-01-30 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 紫外／青色光を可視光に効率良く変換する紫外／青色ｌｅｄ―蛍光体デバイス
JP2004071357A (ja) * 2002-08-06 2004-03-04 Shigeo Fujita 照明装置
JP2004083653A (ja) * 2002-08-23 2004-03-18 Sharp Corp 発光装置ならびに蛍光体およびその製造方法
JP2007088261A (ja) * 2005-09-22 2007-04-05 Sanyo Electric Co Ltd 発光装置
JP2008010518A (ja) * 2006-06-27 2008-01-17 Citizen Holdings Co Ltd 蛍光発光装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001501380A (ja) * 1997-05-27 2001-01-30 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 紫外／青色光を可視光に効率良く変換する紫外／青色ｌｅｄ―蛍光体デバイス
JP2004071357A (ja) * 2002-08-06 2004-03-04 Shigeo Fujita 照明装置
JP2004083653A (ja) * 2002-08-23 2004-03-18 Sharp Corp 発光装置ならびに蛍光体およびその製造方法
JP2007088261A (ja) * 2005-09-22 2007-04-05 Sanyo Electric Co Ltd 発光装置
JP2008010518A (ja) * 2006-06-27 2008-01-17 Citizen Holdings Co Ltd 蛍光発光装置

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012053386A1 (fr) * 2010-10-21 2012-04-26 シーシーエス株式会社 Dispositif électroluminescent et son procédé de production
JP2013004814A (ja) * 2011-06-17 2013-01-07 Panasonic Corp Ｌｅｄユニット
WO2013113571A1 (fr) * 2012-01-31 2013-08-08 Osram Opto Semiconductors Gmbh Composant semi-conducteur optoélectronique doté d'un élément convertisseur
JP2013207049A (ja) * 2012-03-28 2013-10-07 Nec Corp 波長変換体を用いた発光装置
JP2013235192A (ja) * 2012-05-10 2013-11-21 Nitto Kogaku Kk 色温度変更フィルタ及び色温度変更フィルタを備えた光学モジュール
JP2020127038A (ja) * 2012-05-14 2020-08-20 ルミレッズ ホールディング ベーフェー ナノ構造蛍光体を有する発光装置
US11031530B2 (en) 2012-05-14 2021-06-08 Lumileds Llc Light emitting device with nanostructured phosphor
JP2014157990A (ja) * 2013-02-18 2014-08-28 Toshiba Corp 半導体発光装置
US10374137B2 (en) * 2014-03-11 2019-08-06 Osram Gmbh Light converter assemblies with enhanced heat dissipation
US10608150B2 (en) 2017-05-31 2020-03-31 Nichia Corporation Light-emitting device and method of manufacturing same
US11011685B2 (en) 2017-05-31 2021-05-18 Nichia Corporation Method of manufacturing light-emitting device
US11637226B2 (en) 2017-05-31 2023-04-25 Nichia Corporation Light-emitting device
JP2019029386A (ja) * 2017-07-25 2019-02-21 日亜化学工業株式会社 発光装置及び発光装置の製造方法
US10546981B2 (en) 2017-07-25 2020-01-28 Nichia Corporation Light emitting device and method of manufacturing light emitting device
US10727381B2 (en) 2017-07-25 2020-07-28 Nichia Corporation Light emitting device
JP7048873B2 (ja) 2017-07-25 2022-04-06 日亜化学工業株式会社 発光装置及び発光装置の製造方法
JP2019079873A (ja) * 2017-10-23 2019-05-23 日亜化学工業株式会社 発光モジュールおよび集積型発光モジュール
JP7174216B2 (ja) 2017-10-23 2022-11-17 日亜化学工業株式会社 発光モジュールおよび集積型発光モジュール

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