Source: http://www.google.com/patents/US7737450?dq=552685
Timestamp: 2017-02-28 03:46:50
Document Index: 93015055

Matched Legal Cases: ['§119', '§120', '§119', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60']

Patent US7737450 - Light emitting diode systems - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsLight emitting diode systems are disclosed. An optical display system that includes a light emitting diode (LED) and a cooling system is disclosed. The cooling system is configured so that, during use, the cooling system regulates a temperature of the light emitting diode....http://www.google.com/patents/US7737450?utm_source=gb-gplus-sharePatent US7737450 - Light emitting diode systemsAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS7737450 B2Publication typeGrantApplication numberUS 11/350,393Publication dateJun 15, 2010Filing dateFeb 8, 2006Priority dateApr 15, 2003Fee statusPaidAlso published asUS7274043, US20050040424, US20060220055, US20100314630, WO2005059959A2, WO2005059959A3Publication number11350393, 350393, US 7737450 B2, US 7737450B2, US-B2-7737450, US7737450 B2, US7737450B2InventorsAlexei A. Erchak, Elefterios Lidorikis, John W. GraffOriginal AssigneeLuminus Devices, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (124), Non-Patent Citations (25), Referenced by (3), Classifications (26), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetLight emitting diode systems
This application is a divisional of U.S. application Ser. No. 10/872,336, by Erchak et al., entitled “Light Emitting Diode Systems”, filed Jun. 18, 2004, which claims priority under 35 U.S.C. §119 to U.S. Provisional Patent Application Ser. No. 60/553,894, filed Mar. 16, 2004, and entitled “Optical Display Systems and Methods”, and is a continuation-in-part of, and claims priority under 35 U.S.C. §120 to U.S. patent application Ser. No. 10/735,498, filed Dec. 12, 2003, and entitled “Light Emitting Systems”; U.S. patent application Ser. No. 10/794,244, filed Mar. 5, 2004, and entitled “Light Emitting Device Methods”; and U.S. patent application Ser. No. 10/794,452, filed Mar. 5, 2004, and entitled “Light Emitting Device Methods”, which claim priority under 35 U.S.C. §119 to U.S. Provisional Patent Application No. 60/462,889, filed Apr. 15, 2003; U.S. Provisional Patent Application No. 60/474,199, filed May 29, 2003; U.S. Provisional Patent Application No. 60/475,682, filed Jun. 4, 2003; U.S. Provisional Patent Application No. 60/503,653, filed Sep. 17, 2003; U.S. Provisional Patent Application No. 60/503,654, filed Sep. 17, 2003; U.S. Provisional Patent Application No. 60/503,661, filed Sep. 17, 2003; U.S. Provisional Patent Application No. 60/503,671, filed Sep. 17, 2003; U.S. Provisional Patent Application No. 60/503,672, filed Sep. 17, 2003; U.S. Provisional Patent Application No. 60/513,807, filed Oct. 23, 2003; and U.S. Provisional Patent Application No. 60/514,764, filed Oct. 27, 2003, the entire contents of each of which is hereby incorporated by reference.
With this arrangement, system 1100 can use the light emitted by LED 1110 to relatively efficiently illuminate the surface of microdisplay 1130 with the shape of the surface of LED 1110 that emits light being about the same as the shape of the surface of 1130 that is illuminated by the light emitted by LED 1110. For example, in some embodiments, the ratio the aspect ratio of LED 1110 to the aspect ratio of microdisplay, 1130 can be from about 0.5 to about 2 (e.g., from about 9/16 to about 16/9, from about 3/4 to about 4/3, about 1). The aspect ratio of microdisplay 1130 can be, for example, 1920×1080, 640×480, 800×600, 1024×700, 1024×768, 1024×720, 1280×720, 1280×768, 1280×960 or 1280×1064.
FIG. 3 shows an optical display system 1200 including LED 1110, lens 1120, and microdisplay 1130. The light emitting surface of LED 1110 has contact regions to which electrical leads 1115 are attached (see discussion below). LED 1110 is spaced a distance L3 from lens 1120, and microdisplay 1130 is spaced a distance L4 from lens 1120. Leads 1115 block light from being emitted from the contact regions of LED 1110. If the plane of the surface of microdisplay 1130 on which the light emitted by LED 1110 impinges coincides with the image plane of lens 1120, a set of dark spots 1202 corresponding to the contact region of the light emitting surface of LED 1110 can appear on this surface of microdisplay 1130. To reduce the area of this surface of microdisplay 1130 that is covered by the dark spots, distances L3 and L4 are selected so that, for light emitted by LED 1110 that impinges on lens 1120, the image plane of lens 1120 does not coincide with the plane of the surface of microdisplay 1130 on which the light emitted by LED 1110 impinges (i.e., there exists a distance, ΔL, between the image plane of lens 1120 and the plane of the surface of microdisplay 1130 on which the light emitted by LED 1110 impinges). With this arrangement, the light from LED 1110 is defocused in the plane of the surface of microdisplay 1130 on which the light emitted by LED 1100 impinges, and the resulting intensity of light is more uniform on this surface of microdisplay 1130 than in the image plane of lens 1120. The total distance between the LED and the microdisplay 1130 can be represented as the distance between the LED 1110 and the image plane 1120 (L5) plus the distance, ΔL. In general, as ΔL is increased by increasing the distance between the LED 1110 and the microdisplay 1130, the intensity of dark spots decreases but the intensity of light emitted by LED 1110 that impinges on the surface of microdisplay 1130 decreases. Alternately, when the microdisplay is translated such that the distance between the LED 1110 and the microdisplay 1130 is decreased, the intensity is greater than the intensity at the image plane, but the microdisplay may be only partially illuminated. In some embodiments, the absolute value of ΔL/L5 is from about 0.00001 to about 1 (e.g., from about 0.00001 to about 0.1, from about 0.00001 to about 0.01, from about 0.00001 to about 0.001), or from about 0.00001 to about 0.0001) In some embodiments, multiple LEDs may be used to illuminate a single microdisplay (e.g., a 3×3 matrix of LEDs). Such a system can be desirable because, when-multiple LEDs are arranged to illuminate a single microdisplay, if one LEDs fails, the system would still be useable (however a dark spot may occur due to the absence of light from the particular LED). If multiple LEDs are used to illuminate a single microdisplay, the optical system can be configures so that dark spots do not appear on the surface of the microdisplay. For example, the microdisplay can be translated outside of the image plane such that the area between the LEDs does not result in a dark spot.
In some embodiments, the intensity of dark spots on the surface of microdisplay 1130 can be reduced by appropriately configuring the contact region of the surface of LED 1110. For example, FIG. 4A shows a top view of an LED 1110 with a contact region disposed around the perimeter of LED 1110. With this arrangement, with or without the presence of a lens (with or without defocusing), the optical display system can be configured (e.g., by properly sizing the area of the surface of microdisplay 1130) so that the intensity of the dark spots created by the contact region of the surface of LED 1110 on surface 1130 is relatively small. This approach may be used with systems that include multiple LEDs (e.g., a 3×3matrix of LEDs).
As another example, FIG. 4B shows an optical display system 300 that includes LED 1110 and microdisplay 1130. LED 1110 includes a contact region formed by leads 1115 that is selected so that dark spots 1202 appear at a region not imaged on the surface of microdisplay 1130. In this example, the surface of microdisplay 1130 can be located at the image plane of lens 1120 because the dark spots fall outside of the area imaged on the microdisplay at the image plane of lens 1120. If the shape of LED 1110 is matched to the shape of microdisplay 1130, leads 1115 can be disposed, for example, on the surface of LED 1110 around its perimeter. In this example, the area inside the contact region of surface 1110 matches (e.g., the aspect ratio is similar) to the surface of microdisplay 1130. This approach may be used with systems that include multiple LEDs (e.g., a 3×3matrix of LEDs).
FIG. 27 shows a multi-layer stack 550 including layers 502, 504, 506, 508, 510 and 512, as well as layers 520, 522, 524 and 526, which are generally formed of materials capable of being pressure and/or heat bonded as described below. For example, layer 520 can be a nickel layer (e.g., electron-beam evaporated), layer 522 can be a silver layer (e.g., electron-beam evaporated), layer 524 can be a nickel layer (e.g., electron-beam evaporated); and layer 526 can be a gold layer (e.g., electron-beam evaporated). In some embodiments, layer 520 can be a relatively thin layer, and layer 524 can be a relatively thick layer. Layer 524 can act, for example, as diffusion barrier to reduce the diffusion of contaminants (e.g., gold) into layers 520, 522 and/or 524 itself. After deposition of layers 520, 522, 524 and 526, multi-layer stack 550 can be treated to achieve an ohmic contact. For example, stack 550 can be annealed (e.g., at a temperature of from about 400° C. to about 600° C.) for a period of time (e.g., from about 30 seconds to about 300 seconds) in an appropriate gas environment (e.g., nitrogen, oxygen, air, forming gas).
For example, the uniformity increase factor ‘S’ has a minimum value S=1 for the square case (e.g., a=b). For a 16×9 rectangle, assuming the following values: ρm=2.2·10−6Ωcm (gold), ρp−c=1.0·10−3Ωcm2, ρp=5.0Ωcm, ρn−c=1.0·10−4Ωcm2, ρn=5.0·10−3Ωcm, n-contact surface coverage 10%, and thicknesses for p-, n-, and metal 0.3 μm, 3.0 μm and 2 μm (at a 10% coverage). Then Ls, equals 1.4 mm. If the die has a surface area of A=25 mm2. In the square case U=0.325, while in the 16×9 case U′=0.5, or a uniformity increase factor S=1.54, i.e. a 54% increase of current uniformity.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS3293513Aug 8, 1962Dec 20, 1966Texas Instruments IncSemiconductor radiant diodeUS3739217Jun 23, 1969Jun 12, 1973Bell Telephone Labor IncSurface roughening of electroluminescent diodesUS3922706Nov 3, 1969Nov 25, 1975Telefunken PatentTransistor having emitter with high circumference-surface area ratioUS4864370Nov 16, 1987Sep 5, 1989Motorola, Inc.Electrical contact for an LEDUS5073041Nov 13, 1990Dec 17, 1991Bell Communications Research, Inc.Integrated assembly comprising vertical cavity surface-emitting laser array with Fresnel microlensesUS5126231Feb 26, 1990Jun 30, 1992Applied Materials, Inc.Process for multi-layer photoresist etching with minimal feature undercut and unchanging photoresist load during etchUS5132751Apr 9, 1991Jul 21, 1992Eastman Kodak CompanyLight-emitting diode array with projectionsUS5162878Dec 12, 1991Nov 10, 1992Eastman Kodak CompanyLight-emitting diode array with projectionsUS5359345Aug 5, 1992Oct 25, 1994Cree Research, Inc.Shuttered and cycled light emitting diode display and method of producing the sameUS5363009Aug 10, 1992Nov 8, 1994Mark MontoIncandescent light with parallel grooves encompassing a bulbous portionUS5376580Mar 19, 1993Dec 27, 1994Hewlett-Packard CompanyWafer bonding of light emitting diode layersUS5426657May 27, 1994Jun 20, 1995At&T Corp.Article comprising a focusing semiconductor laserUS5491350Jun 30, 1994Feb 13, 1996Hitachi Cable Ltd.Light emitting diode and process for fabricating the sameUS5528057May 27, 1994Jun 18, 1996Omron CorporationSemiconductor luminous element with light reflection and focusing configurationUS5600483Apr 20, 1995Feb 4, 1997Massachusetts Institute Of TechnologyThree-dimensional periodic dielectric structures having photonic bandgapsUS5617445 *Jun 7, 1995Apr 1, 1997Picolight IncorporatedQuantum cavity light emitting elementUS5631190Oct 7, 1994May 20, 1997Cree Research, Inc.Method for producing high efficiency light-emitting diodes and resulting diode structuresUS5633527Feb 6, 1995May 27, 1997Sandia CorporationUnitary lens semiconductor deviceUS5724062Sep 21, 1994Mar 3, 1998Cree Research, Inc.High resolution, high brightness light emitting diode display and method and producing the sameUS5779924Mar 22, 1996Jul 14, 1998Hewlett-Packard CompanyOrdered interface texturing for a light emitting deviceUS5793062Oct 24, 1997Aug 11, 1998Hewlett-Packard CompanyTransparent substrate light emitting diodes with directed light outputUS5814839Feb 14, 1996Sep 29, 1998Sharp Kabushiki KaishaSemiconductor light-emitting device having a current adjusting layer and a uneven shape light emitting region, and method for producing sameUS5834331Oct 17, 1996Nov 10, 1998Northwestern UniversityMethod for making III-Nitride laser and detection deviceUS5955749Dec 2, 1996Sep 21, 1999Massachusetts Institute Of TechnologyLight emitting device utilizing a periodic dielectric structureUS6071795Jan 23, 1998Jun 6, 2000The Regents Of The University Of CaliforniaSeparation of thin films from transparent substrates by selective optical processingUS6072628Jan 29, 1998Jun 6, 2000Thomson Multimedia S.A.Optical polarisation deviceUS6091085Feb 19, 1998Jul 18, 2000Agilent Technologies, Inc.GaN LEDs with improved output coupling efficiencyUS6122103Jun 22, 1999Sep 19, 2000MoxtechBroadband wire grid polarizer for the visible spectrumUS6169294Sep 8, 1998Jan 2, 2001Epistar Co.Inverted light emitting diodeUS6222207May 24, 1999Apr 24, 2001Lumileds Lighting, U.S. LlcDiffusion barrier for increased mirror reflectivity in reflective solderable contacts on high power LED chipUS6265820 *Jan 27, 1999Jul 24, 2001Emagin CorporationHeat removal system for use in organic light emitting diode displays having high brightnessUS6287882Oct 4, 1999Sep 11, 2001Visual Photonics Epitaxy Co., Ltd.Light emitting diode with a metal-coated reflective permanent substrate and the method for manufacturing the sameUS6288840Jan 11, 2000Sep 11, 2001MoxtekImbedded wire grid polarizer for the visible spectrumUS6303405Sep 24, 1999Oct 16, 2001Kabushiki Kaisha ToshibaSemiconductor light emitting element, and its manufacturing methodUS6307218Nov 20, 1998Oct 23, 2001Lumileds Lighting, U.S., LlcElectrode structures for light emitting devicesUS6335548Oct 22, 1999Jan 1, 2002Gentex CorporationSemiconductor radiation emitter packageUS6340824Aug 31, 1998Jan 22, 2002Kabushiki Kaisha ToshibaSemiconductor light emitting device including a fluorescent materialUS6388264Aug 7, 2000May 14, 2002Benedict G PaceOptocoupler package being hermetically sealedUS6410348Aug 1, 2000Jun 25, 2002United Epitaxxy Company, Ltd.Interface texturing for light-emitting deviceUS6410942Nov 14, 2000Jun 25, 2002Cree Lighting CompanyEnhanced light extraction through the use of micro-LED arraysUS6420242Jan 6, 2000Jul 16, 2002The Regents Of The University Of CaliforniaSeparation of thin films from transparent substrates by selective optical processingUS6426515Mar 30, 2001Jul 30, 2002Fujitsu LimitedSemiconductor light-emitting deviceUS6465808Jan 11, 2001Oct 15, 2002Highlink Technology CorporationMethod and structure for forming an electrode on a light emitting deviceUS6468824Mar 22, 2001Oct 22, 2002Uni Light Technology Inc.Method for forming a semiconductor device having a metallic substrateUS6469324May 24, 2000Oct 22, 2002Tien Yang WangSemiconductor light-emitting device and method for manufacturing the sameUS6487463 *Jun 8, 1998Nov 26, 2002Gateway, Inc.Active cooling system for an electronic deviceUS6504180Jul 26, 1999Jan 7, 2003Imec Vzw And Vrije UniversiteitMethod of manufacturing surface textured high-efficiency radiating devices and devices obtained therefromUS6522063Mar 28, 2001Feb 18, 2003Epitech CorporationLight emitting diodeUS6534798Sep 6, 2000Mar 18, 2003California Institute Of TechnologySurface plasmon enhanced light emitting diode and method of operation for the sameUS6559075Apr 1, 1999May 6, 2003Siemens AktiengesellschaftMethod of separating two layers of material from one another and electronic components produced using this processUS6573537Mar 29, 2001Jun 3, 2003Lumileds Lighting, U.S., LlcHighly reflective ohmic contacts to III-nitride flip-chip LEDsUS6574383Apr 30, 2001Jun 3, 2003Massachusetts Institute Of TechnologyInput light coupler using a pattern of dielectric contrast distributed in at least two dimensionsUS6593160Feb 6, 2001Jul 15, 2003Lumileds Lighting, U.S., LlcDiffusion barrier for increased mirror reflectivity in reflective solderable contacts on high power led chipUS6614056Nov 21, 2000Sep 2, 2003Cree Lighting CompanyScalable led with improved current spreading structuresUS6627521Oct 28, 2002Sep 30, 2003Kabushiki Kaisha ToshibaSemiconductor light emitting element and manufacturing method thereofUS6642618Jun 11, 2001Nov 4, 2003Lumileds Lighting U.S., LlcLight-emitting device and production thereofUS6649437Aug 20, 2002Nov 18, 2003United Epitaxy Company, Ltd.Method of manufacturing high-power light emitting diodesUS6653765 *Apr 17, 2000Nov 25, 2003General Electric CompanyUniform angular light distribution from LEDsUS6657236Nov 28, 2000Dec 2, 2003Cree Lighting CompanyEnhanced light extraction in LEDs through the use of internal and external optical elementsUS6661028May 14, 2002Dec 9, 2003United Epitaxy Company, Ltd.Interface texturing for light-emitting deviceUS6690268Feb 26, 2001Feb 10, 2004Donnelly CorporationVideo mirror systems incorporating an accessory moduleUS6740906Jul 22, 2002May 25, 2004Cree, Inc.Light emitting diodes including modifications for submount bondingUS6742907May 8, 2003Jun 1, 2004Seiko Epson CorporationIllumination device and display device using itUS6762069Nov 19, 2002Jul 13, 2004United Epitaxy Company, Ltd.Method for manufacturing light-emitting element on non-transparent substrateUS6777871Dec 22, 2000Aug 17, 2004General Electric CompanyOrganic electroluminescent devices with enhanced light extractionUS6778746Mar 11, 2003Aug 17, 2004Btg International LimitedOptical devices and methods of fabrication thereofUS6784027Dec 2, 2002Aug 31, 2004Osram Opto Semiconductors GmbhLight-emitting semiconductor componentUS6784463Mar 11, 2002Aug 31, 2004Lumileds Lighting U.S., LlcIII-Phospide and III-Arsenide flip chip light-emitting devicesUS6791117Jan 14, 2003Sep 14, 2004Kabushiki Kaisha ToshibaSemiconductor light emission device and manufacturing method thereofUS6791119Jan 25, 2002Sep 14, 2004Cree, Inc.Light emitting diodes including modifications for light extractionUS6791259Aug 22, 2000Sep 14, 2004General Electric CompanySolid state illumination system containing a light emitting diode, a light scattering material and a luminescent materialUS6794684Feb 14, 2003Sep 21, 2004Cree, Inc.Reflective ohmic contacts for silicon carbide including a layer consisting essentially of nickel, methods of fabricating same, and light emitting devices including the sameUS6800500Jul 29, 2003Oct 5, 2004Lumileds Lighting U.S., LlcIII-nitride light emitting devices fabricated by substrate removalUS6803603Jun 22, 2000Oct 12, 2004Kabushiki Kaisha ToshibaSemiconductor light-emitting elementUS6812503Nov 27, 2002Nov 2, 2004Highlink Technology CorporationLight-emitting device with improved reliabilityUS6818531Jul 3, 2003Nov 16, 2004Samsung Electro-Mechanics Co., Ltd.Method for manufacturing vertical GaN light emitting diodesUS6825502Apr 17, 2003Nov 30, 2004Kabushiki Kaisha ToshibaLight emitting element, method of manufacturing the same, and semiconductor device having light emitting elementUS6828597Sep 9, 2002Dec 7, 2004Osram Opto Semiconductors GmbhRadiation-emitting semiconductor componentUS6828724May 8, 2001Dec 7, 2004Cambridge Display Technology LimitedLight-emitting devicesUS6831302Nov 26, 2003Dec 14, 2004Luminus Devices, Inc.Light emitting devices with improved extraction efficiencyUS6847057Aug 1, 2003Jan 25, 2005Lumileds Lighting U.S., LlcSemiconductor light emitting devicesUS6849558Sep 17, 2002Feb 1, 2005The Board Of Trustees Of The Leland Stanford Junior UniversityReplication and transfer of microstructures and nanostructuresUS6878969May 29, 2003Apr 12, 2005Matsushita Electric Works, Ltd.Light emitting deviceUS6891203Jan 4, 2002May 10, 2005Toyoda Gosei Co., Ltd.Light emitting deviceUS6900587Jun 26, 2002May 31, 2005Toyoda Gosei Co., Ltd.Light-emitting diodeUS6924136May 23, 2001Aug 2, 2005Nihon Shokuhin Kako Co. Ltd.Cyclodextrin glucanotransferase and its method of manufactureUS6943379Mar 24, 2003Sep 13, 2005Toyoda Gosei Co., Ltd.Light emitting diodeUS6949683Nov 20, 2002Sep 27, 2005Umicore Ag & Co. KgProcess for catalytic autothermal steam reforming of alcoholsUS6958494Aug 14, 2003Oct 25, 2005Dicon Fiberoptics, Inc.Light emitting diodes with current spreading layerUS20020110172Dec 21, 2001Aug 15, 2002Ghulam HasnainEfficiency GaN-based light emitting devicesUS20030141507Jan 28, 2002Jul 31, 2003Krames Michael R.LED efficiency using photonic crystal structureUS20030141563Jan 28, 2002Jul 31, 2003Bily WangLight emitting diode package with fluorescent coverUS20030143772Jan 30, 2002Jul 31, 2003United Epitaxy Co., Ltd.High efficiency light emitting diode and method of making the sameUS20030168664 *May 28, 2001Sep 11, 2003Berthold HahnLight-emitting-diode chip comprising a sequence of gan-based epitaxial layer which emit radiation, and a method for producing the sameUS20030209714Mar 31, 2003Nov 13, 2003General Electric CompanySolid state lighting device with reduced form factor including led with directional emission and package with microopticsUS20030222263Jun 4, 2002Dec 4, 2003Kopin CorporationHigh-efficiency light-emitting diodesUS20040027062Jan 16, 2001Feb 12, 2004General Electric CompanyOrganic electroluminescent device with a ceramic output coupler and method of making the sameUS20040043524May 22, 2003Mar 4, 2004Arima Optoelectronics Corp.Method for fabricating light emitting diode with transparent substrateUS20040110856Dec 4, 2002Jun 10, 2004Young Jung GunPolymer solution for nanoimprint lithography to reduce imprint temperature and pressureUS20040130263Jan 2, 2003Jul 8, 2004Ray-Hua HorngHigh brightness led and method for producing the sameUS20040144985Jan 20, 2004Jul 29, 2004Zhibo ZhangOptoelectronic devices having arrays of quantum-dot compound semiconductor superlattices thereinUS20040182914Mar 19, 2003Sep 23, 2004Emcore CorporationFlip-chip light emitting diode with a thermally stable multiple layer reflective p-type contactUS20040206962Nov 26, 2003Oct 21, 2004Erchak Alexei A.Light emitting devicesUS20040206971Nov 26, 2003Oct 21, 2004Erchak Alexei A.Light emitting devicesUS20040206972Nov 26, 2003Oct 21, 2004Erchak Alexei A.Light emitting deviceUS20040207310Nov 26, 2003Oct 21, 2004Erchak Alexei A.Light emitting devicesUS20040207319Nov 26, 2003Oct 21, 2004Erchak Alexei A.Light emitting devicesUS20040207320Nov 26, 2003Oct 21, 2004Erchak Alexei A.Light emitting devicesUS20040207323Nov 26, 2003Oct 21, 2004Erchak Alexei A.Light emitting devicesUS20040259279Mar 5, 2004Dec 23, 2004Erchak Alexei A.Light emitting device methodsUS20040259285Mar 5, 2004Dec 23, 2004Erchak Alexei A.Light emitting device methodsUS20050019971Apr 15, 2004Jan 27, 2005Slater David B.Methods of fabricating light emitting devices using mesa regions and passivation layersUS20050040424Jun 18, 2004Feb 24, 2005Erchak Alexei A.Light emitting diode systemsUS20050051785Jun 18, 2004Mar 10, 2005Erchak Alexei A.Electronic device contact structuresUS20050051787Sep 27, 2004Mar 10, 2005Luminus Devices, Inc., A Delaware CorporationLight emitting devicesUS20050059178Jul 22, 2004Mar 17, 2005Erchak Alexei A.Light emitting device processesUS20050059179Jul 22, 2004Mar 17, 2005Erchak Alexei A.Light emitting device processesUS20050082545Oct 21, 2003Apr 21, 2005Wierer Jonathan J.Jr.Photonic crystal light emitting deviceUS20050087754Dec 12, 2003Apr 28, 2005Erchak Alexei A.Light emitting systemsUS20050087757Nov 19, 2004Apr 28, 2005Luminus Devices, Inc., A Delaware CorporationLight emitting devicesUS20050112886Nov 1, 2004May 26, 2005Kabushiki Kaisha ToshibaLight-emitting device and method for manufacturing the sameUS20050127375Jun 18, 2004Jun 16, 2005Erchak Alexei A.Optical display systems and methodsUS20050205883Mar 19, 2004Sep 22, 2005Wierer Jonathan J JrPhotonic crystal light emitting deviceWO2002071450A2Mar 5, 2002Sep 12, 2002Emcore CorporationLed lead for improved light extraction* Cited by examinerNon-Patent CitationsReference1Boroditsky, M., et al., "Light extraction from optically pumped light-emitting diode by thin-slab photonic crystals", Appl. Phys. Lett. 75(8) (1999) 1036-1038.2Bulu, I., et al., "Highly directive radiation from sources embedded inside photonic crystals", Appl. Phys. Lett. 83(16) (2003) 3263-3265.3Chen, L., et al., "Fabrication of 50-100 nm Patterned InGaN Blue Light Emitting Heterostructures", Phys. Stat. Sol. (a), 188(1) (2001) 135-138.4Erchak, A., et al., "Enhanced coupling to vertical radiation using a two-dimensional photonic crystal in a semiconductor light-emitting diode", Appl. Phys. Lett. 78 (5) (2001) 563-565.5Gourley, P., et al., "Optical properties of two-dimensional photonic lattices fabricated as honeycomb nanostructures in compound semiconductors", Appl. Phys. Lett. 64(6) (1994) 687-689.6Gourley, P.L., et al., "Optical Bloch waves in a semiconductor photonic lattice", Appl. Phys. Lett. 60(22) (1992) 2714-2716.7International Search Report, from PCT/US2004/41253, mailed Dec. 5, 2005.8Kelly, M.K., et al., "Optical patterning of GaN films", Appl. Phys. Lett. 68(12) (1996) 1749-1751.9Kelly, M.K., et al., "Optical process for liftoff of Group III-nitride films", Physica Status Solidi; Rapid Research Note (1996) 2 pages.10Koch, T.L., et al., "1.55-mu InGaAsP distributed feedback vapor phase transported buried heterostructure lasers", Appl. Phys. Lett. 47(1) (1985) 12-14.11Koch, T.L., et al., "1.55-μ InGaAsP distributed feedback vapor phase transported buried heterostructure lasers", Appl. Phys. Lett. 47(1) (1985) 12-14.12Köck, A., et al., "Novel surface emitting GaAs/AIGaAs laser diodes based on surface mode emission", Appl. Phys. Lett. 63(9) (1993) 1164-1166.13Köck, A., et al., "Stronglly directional emission from AIGaAs/GaAs light-emitting diodes", Appl. Phys. Lett. 57(22) (1990) 2327-2329.14Krames, M., et al., "Introduction to the Issue on High-Efficiency Light-Emitting Diodes", IEEE Journal on selected topic in quantum electronics, vol. 8, No. 2 (2002) 185-188.15Lee, Y.J., et al., "A high-extraction-efficiency nanopatterned organic light-emitting diode", Appl. Phys. Lett. 82(21) (2003) 3779-3781.16Oder, T.N., et al., "III-nitride photonic crystals", Appl. Phys. Lett. 83(6) (2003) 1231-1233.17Okai, M., et al., "Novel method to fabricate corrugation for a lambda/4-shifted distributed feedback laser using a granting photomask", Appl. Phys. Lett. 55(5) (1989) 415-417.18Okai, M., et al., "Novel method to fabricate corrugation for a λ/4-shifted distributed feedback laser using a granting photomask", Appl. Phys. Lett. 55(5) (1989) 415-417.19Rattier, M., et al., "Omnidirectional and compact guided light extraction from Archimedean photonic lattices", Appl. Phys. Lett. 83(7) (2003) 1283-1285.20Schnitzer, I., et al., "30% external quantum efficiency from surface textured, thin-film light-emitting diodes", Appl. Phys. Lett., 63(18) (1993) 2174-2176.21Streubel, K., et al., "High Brightness AlGaInP Light-Emitting Diodes", IEEE Journal on selected topic in quantum electronics, vol. 8, No. 2 (2002) 321-332.22Tsang, W.T., et al., "Semiconductor distributed feedback lasers with quantum well or superlattice grating for index or gain-coupled optical feedback", Appl. Phys. Lett. 60(21) (1992) 258-2582.23Wendt, J.R., et al., "Nanofabrication of photonic lattice structures in GaA/AIGaAa", J. Vac. Sci. Technol. B 11(6) (1993) 2637-2640.24Wong, W.S., et al., "Damage-free separation of GaN thin films from sapphire substrates", Appl. Phys. Lett. 72 (5) (1998) 599-601.25Zelsmann, M., et al., "Seventy-fold enhancement of light extraction from a defectless photonic crystal made on silicon-on-insulator", Appl. Phys. Lett. 83(13) (2003) 2542-2544.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS20100314630 *May 13, 2010Dec 16, 2010Luminus Devices, Inc.Light emitting diode systemsUS20130049011 *Oct 17, 2012Feb 28, 2013Cree, Inc.Optoelectronic device with upconverting luminophoric mediumUS20150301282 *Apr 22, 2013Oct 22, 2015Nec CorporationOptical element, illumination device, image display device, method of operating optical element* Cited by examinerClassifications U.S. Classification257/79, 257/84, 257/675, 257/712, 257/E33.075, 257/98International ClassificationH01L33/20, H01L, G02B6/122, H01L29/04, H01L27/15Cooperative ClassificationH01L2224/48091, H01L33/20, G02B6/1225, G03B21/204, B82Y20/00, H01L2933/0083, H04N9/315, H04N9/3144European ClassificationG02B6/122P, H01L33/20, B82Y20/00, G03B21/20B8B, H04N9/31R5, H04N9/31R1, H04N9/31VLegal EventsDateCodeEventDescriptionAug 2, 2006ASAssignmentOwner name: LUMINUS DEVICES, INC., MASSACHUSETTSFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ERCHAK, ALEXEI A.;GRAFF, JOHN W.;LIDORIKIS, ELEFTERIOS;REEL/FRAME:018042/0685;SIGNING DATES FROM 20060502 TO 20060517Owner name: LUMINUS DEVICES, INC.,MASSACHUSETTSFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ERCHAK, ALEXEI A.;GRAFF, JOHN W.;LIDORIKIS, ELEFTERIOS;SIGNING DATES FROM 20060502 TO 20060517;REEL/FRAME:018042/0685Jan 24, 2014REMIMaintenance fee reminder mailedJun 4, 2014FPAYFee paymentYear of fee payment: 4Jun 4, 2014SULPSurcharge for late paymentOct 15, 2015ASAssignmentOwner name: EAST WEST BANK, CALIFORNIAFree format text: SECURITY INTEREST;ASSIGNOR:LUMINUS DEVICES, INC.;REEL/FRAME:036869/0355Effective date: 20151008RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services