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| Number | Title | Issue Date |
| 7442966 | Electromagnetic radiation emitting semiconductor chip and procedure for its production A semiconductor chip which emits electromagnetic radiation is presented. The chip includes an epitaxially produced semiconductor layer stack based on nitride semiconductor material, which includes an n-conducting semiconductor layer, a p-conducting semiconductor lay... | 10/28/2008 |
| 7439552 | Semiconductor light-emitting device and method for fabricating the same A semiconductor light-emitting device includes a light-emitting layer and a light extraction layer formed on the light-emitting layer and made of a resin material containing particles. The maximum size of each of the particles contained in the light extraction layer... | 10/21/2008 |
| 7399995 | Backlight module for liquid crystal display A backlight module includes a base, a plurality of point light sources distributed on the base and a light guide plate. Each of the point light sources includes a transparent cover and a light-emitting unit received in the cover. The transparent cover includes an in... | 07/15/2008 |
| 7388233 | Patchwork patterned devices and related methods Devices, such as light-emitting devices (e.g., LEDs), and methods associated with such devices are provided. A light-emitting device may include an interface including a first region and a second region. The first region having a dielectric function that varies spat... | 06/17/2008 |
| 7388232 | Light emitting element and light emitting device A light emitting element has: a light emitting layer of semiconductor; and a diffusion layer that has a refractive index equal to or greater than that of the light emitting layer and that diffuses light emitted from the light emitting layer to increase the external ... | 06/17/2008 |
| 7385226 | Light-emitting device A light-emitting device includes a substrate, a first nitride semiconductor stack formed on the substrate, a nitride light-emitting layer formed on the first nitride semiconductor stack, a second nitride semiconductor stack formed on the nitride light-emitting layer... | 06/10/2008 |
| 7355210 | High-efficiency light-emitting element A high-efficiency light-emitting element includes a substrate, a first nitride semiconductor layer formed on the substrate, a nitride light-emitting layer formed on the first nitride semiconductor layer, and a second nitride semiconductor layer formed on the nitride... | 04/08/2008 |
| 7348603 | Anisotropic collimation devices and related methods Devices, such as light-emitting devices (e.g., LEDs), and methods associated with such devices are provided. A light-emitting device designed to emit light may include an interface through which emitted light passes therethrough, wherein the interface has a dielectr... | 03/25/2008 |
| 7348195 | Semiconductor light-emitting device and method for fabricating the device An n-type AlAs/n-type Al0.5Ga0.5As DBR layer and a p-type (Al0.2Ga0.8)0.5In0.5P/p-type Al0.5In0.5P DBR layer are formed on an n-type GaAs substrate at specified intervals so that... | 03/25/2008 |
| 7306960 | High radiance LED chip and a method for producing same The invention concerns a light-emitting diode chip comprising a radiation-emitting active region and a window layer. To increase the luminous efficiency, the cross-sectional area of the radiation-emitting active region is smaller than the cross-sectional area of the... | 12/11/2007 |
| 7161188 | Semiconductor light emitting element, semiconductor light emitting device, and method for fabricating semiconductor light emitting element Projections/depressions forming a two-dimensional periodic structure are formed in a surface of a semiconductor multilayer film opposing the principal surface thereof, while a metal electrode with a high reflectivity is formed on the other surface. By using the diff... | 01/09/2007 |
| 7145181 | Semiconductor chip for optoelectronics A semiconductor chip, in particular a light-emitting diode, has a substrate (2), on which a sequence of semiconductor layers (3) with an active zone (5) has been applied. Above the sequence of semiconductor layers (3) there is a stepped w... | 12/05/2006 |
| 6700692 | Electrochromic rearview mirror assembly incorporating a display/signal light According to one embodiment of the present invention, an electrochromic rearview mirror assembly for a vehicle includes an electrochromic mirror having a variable reflectivity, a glare sensor for sensing levels of light directed towards the front element ... | 03/02/2004 |
| 6700139 | GaP-base semiconductor light emitting device The main surface on the side of a p-type layer of a GaP-base semiconductor is defined as a first main surface, and the main surface opposite thereto as a second main surface. The second main surface is lapped and then etched using aqua regia to thereby co... | 03/02/2004 |
| 6680490 | Light-emitting device After a light-emitting element exhibiting an emission peak wavelength in a wavelength range of not longer than 500 nm is mounted into a cup-like portion of a base member, the cup-like portion is filled with epoxy group-containing silicone rubber. An aroma... | 01/20/2004 |
| 6670207 | Radiation emitter device having an integral micro-groove lens The radiation emitter device of the present invention includes at least two radiation emitters emitting radiation of different wavelengths, first and second electrical leads electrically coupled to at least one of the radiation emitters, and an encapsulan... | 12/30/2003 |
| 6657236 | Enhanced light extraction in LEDs through the use of internal and external optical elements This invention describes new LEDs having light extraction structures on or within the LED to increase its efficiency. The new light extraction structures provide surfaces for reflecting, refracting or scattering light into directions that are more favorab... | 12/02/2003 |
| 6657382 | Light emitting device, display apparatus with an array of light emitting devices, and display apparatus method of manufacture A light emitting device and display apparatus using a plurality of light emitting devices can drastically reduce contrast loss due to light from an external source. The light emitting device has (a) light emitting chip(s) and a first layer covering the li... | 12/02/2003 |
| 6653765 | Uniform angular light distribution from LEDs A light source (10) includes a light emitting component (32), such as a UV/blue light emitting diode or laser diode, a layer (46) of a light scattering material (42), and a layer (48) of a phosphor material (44). The phosphor material converts a portion o... | 11/25/2003 |
| 6617615 | Semiconductor light-emitting device Attempted is to provide a semiconductor light-emitting device capable of inexpensively coping with an encoder requiring high resolving power. Provided are a semiconductor light-emitting element, a light-transmissive resin mold part encapsulating the semic... | 09/09/2003 |
| 6614172 | High efficiency white light emitting diode A high efficiency white light emitting diode, having a light emitting diode chip, a transparent substrate, a transparent Ohmic electrode, a reflection layer, a contact diode and covered with submount with a conductive trace. The transparent substrate havi... | 09/02/2003 |
| 6504180 | Method of manufacturing surface textured high-efficiency radiating devices and devices obtained therefrom A device for emitting radiation at a predetermined wavelength is presented. This device has a cavity with an active layer in which said radiation is generated by charge carrier recombination. The edges of the device define the region or space for radiatio... | 01/07/2003 |
| 6441403 | Semiconductor device with roughened surface increasing external quantum efficiency The present invention provides a semiconductor device with a roughened surface that increases external quantum efficiency thereof. Roughening of the semiconductor device surface is done by epitaxial growth techniques that may include hydride vapor phase e... | 08/27/2002 |
| 6429460 | Highly luminous light emitting device The present invention discloses a light emitting device which includes a substrate, a light emitting layer on the substrate, a current restriction layer on the light emitting layer, a current spreading layer on the current restriction layer, a dielectric ... | 08/06/2002 |
| 6395572 | Method of producing semiconductor light-emitting element Semiconductor light-emitting elements are produced by providing a wafer substrate of GaP, epitaxially growing on this substrate a semiconductor layered structure including an n-type layer and a p-type layer of GaP for providing a light-emitting layer, for... | 05/28/2002 |
| 6309953 | Process for producing a semiconductor device with a roughened semiconductor surface A process for producing a semiconductor device includes the following sequential steps: producing a semiconductor body having an Alx Ga1-x As layer with an upper surface, where xࣘ0.40; applying a contact metallization made of a non... | 10/30/2001 |
| 6245259 | Wavelength-converting casting composition and light-emitting semiconductor component The wavelength-converting casting composition is based on a transparent epoxy casting resin with a luminous substance admixed. The composition is used in an electroluminescent component having a body that emits ultraviolet, blue or green light. An inorgan... | 06/12/2001 |
| 6140248 | Process for producing a semiconductor device with a roughened semiconductor surface A process for producing a semiconductor device includes the following sequential steps: producing a semiconductor body having an Alx Ga1-x As layer with an upper surface, where xࣘ0.40; applying a contact metallization made of a non... | 10/31/2000 |
| 5931570 | Light emitting diode lamp An LED lamp according to the present invention emits light approximately in all directions like a small filament lamp. The LED lamp is a light emitting bulb-shaped unit, and comprises an epoxy resin bulb-shaped portion; two leads of which one end is exten... | 08/03/1999 |
| 5898192 | Light emitting diode with improved luminous efficiency having a contact structure disposed on a frosted outer surface A light emitting diode for generating preferably green light with improved luminous efficiency. A number of epitaxial layers suitable for the light emission is arranged on a doped semiconductor substrate wafer of GaP. The surface of the epitaxial layers i... | 04/27/1999 |
| 5779924 | Ordered interface texturing for a light emitting device This method relates to the fabrication of semiconductor light-emitting devices having at least one ordered textured interface. Controlled interface texturing with an ordered pattern is provided on any or all interfaces of such a device to enhance light ex... | 07/14/1998 |
| 5777433 | High refractive index package material and a light emitting device encapsulated with such material A high refractive index package material is described that encapsulates a semiconductor light emitting chip. The high refractive index package material is transparent to the light emitted from the chip and includes a host material and a plurality of nanop... | 07/07/1998 |
| 5744828 | Semiconductor light emitting device with blocking layer A semiconductor light emitting device has a semiconductor substrate (1). On a first principal plane of the substrate, an emission layer is formed. In a predetermined region on the emission layer, a current blocking layer (10) is formed. On the current blo... | 04/28/1998 |
| 5742098 | Semiconductor component with plastic sheath and method for producing the same A semiconductor component includes a semiconductor body. At least one contact metallizing covers at least one portion of a surface of the semiconductor body, defining at least one free portion of the surface not covered by the at least one contact metalli... | 04/21/1998 |
| 5429954 | Radiation-emitting diode with improved radiation output A method for manufacture of radiation-emitting diodes includes manufacturing a layer sequence containing a radiation-generating pn-junction on a substrate wafer manufacturing contact layers for electrical connections on an upper face of the layer sequence... | 07/04/1995 |
| 5214306 | Light emitting diode A light emitting diode composed of a compound semiconductor containing aluminum having a GaAlAs layer and the like and having a structure which is superior in humidity resistance and has a long life. For example, in a double hetero light emitting diode co... | 05/25/1993 |
| 5040044 | Compound semiconductor device and method for surface treatment According to the present invention, roughness are formed on the surface of III-V group compound semiconductor to prevent total reflection, and SiNx film is formed on rough surface. This makes it possible to increase external quantum efficiency by surface ... | 08/13/1991 |
| 4675575 | Light-emitting diode assemblies and systems therefore A light string system is provided having a plurality of mono-color or bi-color light-emitting diodes electrically connected thereto. Each light-emitting diode has a generally elongated, hollow envelope mounted thereover, and the envelope is substantially ... | 06/23/1987 |
| 4447825 | III-V Group compound semiconductor light-emitting element having a doped tantalum barrier layer Disclosed is a III-V Group compound semiconductor light-emitting element having a III-V Group compound semiconductor body with a p-n junction and including a p-type layer involved in forming the p-n junction; and a multi-layer electrode mounted on the p-t... | 05/08/1984 |
| 4168102 | Light-emitting display device including a light diffusing bonding layer A light-emitting display device comprising a printed wiring board impressed with a wiring pattern; a light-emitting element mounted on the printed wiring board and electrically connected to the wiring pattern; a reflector provided with a penetrating hole ... | 09/18/1979 |
