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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Kopin Corporation Patents
Assignee:
Kopin Corporation
Address:
Taunton, MA
No. of patents:
165
Patents:


1 2 3 4


Patent Number Title Of Patent Date Issued
D559250 Viewing device January 8, 2008
D479545 Digital camera September 9, 2003
D464971 Liquid crystal display holder October 29, 2002
D454848 Wireless phone with microdisplay March 26, 2002
D446783 Wireless phone with microdisplay August 21, 2001
D427587 Portable communication display device July 4, 2000
D420671 Portable communication display device February 15, 2000
D412919 Monocular viewer August 17, 1999
D394649 Head mounted display device May 26, 1998
D388426 Head-mounted display device December 30, 1997
D381346 Head-mountable matrix display July 22, 1997
D371549 Head-mounted display device July 9, 1996
D368730 Compact light valve projector April 9, 1996
D355649 Base mounted rear projection monitor February 21, 1995
D355648 Rear projection monitor February 21, 1995
D355206 Liquid crystal display housing unit adapted for use with a slide projector February 7, 1995
D353390 Liquid crystal display housing unit for a slide projector December 13, 1994
D352304 Liquid crystal display housing unit adapted for use with a slide projector November 8, 1994
D349896 Rear projection monitor August 23, 1994
D347840 Rear projection monitor June 14, 1994
7372447 Microdisplay for portable communication systems May 13, 2008
The invention relates to a microdisplay system that utilizes a small high resolution active matrix liquid crystal display with an illumination system and a magnifying optical system to provide a hand held communication display device. The system can employ an LED illumination system
7365811 Display housing with a display alignment device April 29, 2008
Alignment of an imaging area of a display with a user's eye provides optimum image quality for the user. Typically, a display is formed of a display panel encased within a carrier. The carrier is used to mechanically align the display panel within a device housing. However, the displ
7345327 Bipolar transistor March 18, 2008
A semiconductor material which has a high carbon dopant concentration includes gallium, indium, arsenic and nitrogen. The disclosed semiconductor materials have a low sheet resistivity because of the high carbon dopant concentrations obtained. The material can be the base layer of ga
7321354 Microdisplay for portable communication systems January 22, 2008
The invention relates to a microdisplay system that utilizes a small high resolution active matrix liquid crystal display with an illumination system and a magnifying optical system to provide a hand held communication display device. The system can employ an LED illumination system
7310072 Portable communication display device December 18, 2007
A head-mounted display system displays information via a matrix display element mounted within a housing that is positioned relative to at least eye of a user. The display is connected to a video or information source such that the user can view information or images shown on the display
7310071 Instrument panel with active display December 18, 2007
An instrument panel including at least one instrument indicator positioned in the panel. At least one active display is positioned in the panel and is capable of displaying images from data provided to the display.
7253852 Polarizer removal in a microdisplay system August 7, 2007
A display module includes a display, a first polarizer and a second polarizer. The polarizers can be located at a distance from the image plane of the display to remove the visibility of optical defects located within the polarizer or between the polarizer and display. The display mo
7242383 Portable microdisplay system July 10, 2007
An active matrix color crystal display has an active matrix circuit, a counterelectrode panel and an interposed layer of liquid crystal. The active matrix display is located in a portable microdisplay system that has a display computer that generates images to be displayed on the liq
7186624 Bipolar transistor with lattice matched base layer March 6, 2007
A semiconductor material which has a high carbon dopant concentration and is composed of gallium, indium, arsenic and nitrogen is disclosed. The material is useful in forming the base layer of gallium arsenide based heterojunction bipolar transistors because it can be lattice matched to
7138993 LCD with integrated switches for DC restore November 21, 2006
An AC-coupled display driver circuit includes one or more DC-restore switches that are integrated within a liquid crystal display. A liquid crystal display system includes a coupling capacitor coupled at one end to a system input video signal, the coupling capacitor providing a displ
7122841 Bonding pad for gallium nitride-based light-emitting devices October 17, 2006
A semiconductor device includes a substrate having a first major surface; a semiconductor device structure over the first surface of the substrate, the device structure comprising an n-type semiconductor layer, and a p-type semiconductor layer over the n-type semiconductor layer; a p-sid
7115466 Bipolar transistor with graded base layer October 3, 2006
A semiconductor material which has a high carbon dopant concentration includes gallium, indium, arsenic and nitrogen. The disclosed semiconductor materials have a low sheet resistivity because of the high carbon dopant concentrations obtained. The material can be the base layer of ga
7075501 Head mounted display system July 11, 2006
A head mounted display system including a high resolution active matrix display which reduces center of gravity offset in a compact design. The active matrix display can be either a liquid crystal display or a light emitting display.
7057668 Color/mono switched display June 6, 2006
A color sequential display operative in one of two alternate modes. The first mode is a color sequential mode in which primary color images are displayed in successive frames while respective background light sources are simultaneously flashed on the display. The second mode is a mon
7002180 Bonding pad for gallium nitride-based light-emitting device February 21, 2006
A bonding pad for an electrode is in contact with p-type gallium nitride-based semiconductor material that includes aluminum. The bonding pad may also includes one or more metals selected from the group consisting of palladium, platinum, nickel and gold. The bonding pad can be used t
6999057 Timing of fields of video February 14, 2006
An apparatus and method to delay a field of video by one row in a two field frame to reduce DC build-up or stick caused by textual image.
6967697 Display housing with a display alignment device November 22, 2005
Alignment of an imaging area of a display with a user's eye provides optimum image quality for the user. Typically, a display is formed of a display panel encased within a carrier. The carrier is used to mechanically align the display panel within a device housing. However, the displ
6955985 Domain epitaxy for thin film growth October 18, 2005
A method of forming an epitaxial film on a substrate includes growing an initial layer of a film on a substrate at a temperature T.sub.growth, said initial layer having a thickness h and annealing the initial layer of the film at a temperature T.sub.anneal, thereby relaxing the initial l
6919935 Method of forming an active matrix display July 19, 2005
The invention relates to the formation of arrays of thin film transistors (TFT's) on silicon substrates and the dicing and tiling of such substrates for transfer to a common module body. TFT's activate display electrodes formed adjacent the transistors after the tiles have been transferr
6911079 Method for reducing the resistivity of p-type II-VI and III-V semiconductors June 28, 2005
The resistivity of a p-doped III-V or a p-doped II-VI semiconductor material is reduced. The reduction of resistivity of the p-type III-V or a II-VI semiconductor material is achieved by applying an electric field to the semiconductor material. III-V nitride-based light emitting diodes a
6909419 Portable microdisplay system June 21, 2005
An active matrix color crystal display has an active matrix circuit, a counterelectrode panel and an interposed layer of liquid crystal. The active matrix display is located in a portable microdisplay system that has a display computer that generates images to be displayed on the liquid
6881983 Efficient light emitting diodes and lasers April 19, 2005
An optoelectronic device such as an LED or laser which produces spontaneous emission by recombination of carriers (electrons and holes) trapped in Quantum Confinement Regions formed by transverse thickness variations in Quantum Well layers of group III nitrides.
6847060 Bipolar transistor with graded base layer January 25, 2005
A semiconductor material which has a high carbon dopant concentration includes gallium, indium, arsenic and nitrogen. The disclosed semiconductor materials have a low sheet resistivity because of the high carbon dopant concentrations obtained. The material can be the base layer of ga
6847052 Light-emitting diode device geometry January 25, 2005
A semiconductor device includes: a substrate; an n-type semiconductor layer over the substrate, the n-type semiconductor layer having a planar top surface; a p-type semiconductor layer extending over a major portion of the n-type semiconductor layer and not extending over an exposed regi
6800879 Method of preparing indium phosphide heterojunction bipolar transistors October 5, 2004
InP heterojunction bipolar transistors having a base layer of InGaAs which are compositionally graded to engineer the bandgap of the base layer to be larger at the emitter/base junction than at the collector/base junction. The graded bandgap can increase DC current gain and speed of the
6750480 Bipolar transistor with lattice matched base layer June 15, 2004
A semiconductor material which has a high carbon dopant concentration and is composed of gallium, indium, arsenic and nitrogen is disclosed. The material is useful in forming the base layer of gallium arsenide based heterojunction bipolar transistors because it can be lattice matched to
6734091 Electrode for p-type gallium nitride-based semiconductors May 11, 2004
An improved electrode for a p-type gallium nitride based semiconductor material is disclosed that includes a layer of an oxidized metal and a first and a second layer of a metallic material. The electrode is formed by depositing three or more metallic layers over the p-type semiconductor
6683584 Camera display system January 27, 2004
A camera display system displays information via a matrix display element mounted within a housing that is positioned relative to at least eye of a user. The display is connected to a video or image sensor such that the user can view information or images shown on the display. The displa
6677936 Color display system for a camera January 13, 2004
The invention relates to a microdisplay system that utilizes a small high resolution active matrix liquid crystal display with an illumination system and a magnifying optical system to provide a viewfinder in a electronic image record system such as a digital camera or video camera.
6636185 Head-mounted display system October 21, 2003
A head mounted display system including a high resolution active matrix display which reduces center of gravity offset in a compact design. The active matrix display can be either a liquid crystal display or a light emitting display.
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