Patents by Inventor Adrian Kitai
Adrian Kitai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9829744Abstract: A display illumination module for the illumination of a rear-projection screen is provided in which a first array of light sources is positioned adjacent to a first face of an optical modulating array layer for modulating the transmission of light emitted by the first array light sources. The first array light sources emit light within a defined angular range, and the optical modulating array layer is positioned relative to the first array of light sources so that light from adjacent light sources does not overlap at the optical modulating array layer. A second array of light sources is positioned adjacent to a second side of the optical modulation array layer and is arranged such that light from the second array of light sources does not pass through said optical modulation array layer and said second array of light sources does not substantially block light from the first array of light sources passing through the optical modulating array layer.Type: GrantFiled: April 7, 2015Date of Patent: November 28, 2017Assignee: McMaster UniversityInventor: Adrian Kitai
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Patent number: 9824892Abstract: A method for growing semiconductor wafers by lateral diffusion liquid phase epitaxy is described. Also provided are a refractory device for practicing the disclosed method and semiconductor wafers prepared by the disclosed method and device. The disclosed method and device allow for significant cost and material waste savings over current semiconductor production technologies.Type: GrantFiled: May 17, 2012Date of Patent: November 21, 2017Assignee: McMaster UniversityInventors: Adrian Kitai, Haoling Yu, Bo Li
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Publication number: 20170031209Abstract: A display illumination module for the illumination of a rear-projection screen is provided in which a first array of light sources is positioned adjacent to a first face of an optical modulating array layer for modulating the transmission of light emitted by the first array light sources. The first array light sources emit light within a defined angular range, and the optical modulating array layer is positioned relative to the first array of light sources so that light from adjacent light sources does not overlap at the optical modulating array layer. A second array of light sources is positioned adjacent to a second side of the optical modulation array layer and is arranged such that light from the second array of light sources does not pass through said optical modulation array layer and said second array of light sources does not substantially block light from the first array of light sources passing through the optical modulating array layer.Type: ApplicationFiled: April 7, 2015Publication date: February 2, 2017Inventor: Adrian KITAI
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Patent number: 9257601Abstract: A thin layer substrate has a plurality of micron sized electrically conductive whisker components which are arranged in parallel and extending from one surface of the substrate to another surface to provide electrically conductive paths through the substrate. Such a substrate may be usable for micron sized LEDs.Type: GrantFiled: May 17, 2012Date of Patent: February 9, 2016Assignee: McMaster UniversityInventors: Adrian Kitai, Huaxiang Shen
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Patent number: 8723779Abstract: The present invention provides a tiled optical fiber display device structure which includes a light emitting diode (LED) backlit liquid crystal display (LCD). Light from the LCD enters an array of optical fibers that directs the light to a viewing screen. The optical fibers eliminate the use of energy absorbing color filters in conventional LCD's, and also enable the seamless tiling of multiple display modules.Type: GrantFiled: January 18, 2005Date of Patent: May 13, 2014Assignee: McMaster UniversityInventor: Adrian Kitai
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Publication number: 20130126917Abstract: A thin layer substrate has a plurality of micron sized electrically conductive whisker components which are arranged in parallel and extending from one surface of the substrate to another surface to provide electrically conductive paths though the substrate. Such a substrate may be usable for micron sized LEDs.Type: ApplicationFiled: May 17, 2012Publication date: May 23, 2013Applicant: MCMASTER UNIVERSITYInventors: Adrian Kitai, Huaxiang Shen
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Publication number: 20130119518Abstract: A method for growing semiconductor wafers by lateral diffusion liquid phase epitaxy is described. Also provided are a refractory device for practicing the disclosed method and semiconductor wafers prepared by the disclosed method and device. The disclosed method and device allow for significant cost and material waste savings over current semiconductor production technologies.Type: ApplicationFiled: May 17, 2012Publication date: May 16, 2013Applicant: MCMASTER UNIVERSITYInventors: Adrian Kitai, Haoling Yu, Bo Li
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Publication number: 20120236217Abstract: A display illumination module for the illumination of a rear-projection screen is provided in which an array of light sources are positioned adjacent to an optical modulating array layer for modulating the transmission of light emitted by the light sources. The light sources emit light within a defined angular range, and the optical modulating array layer is positioned relative to the array of light sources so that light from adjacent light sources does not overlap with the optical modulating array layer. One or more display modules may be incorporated into a display system that further comprises a rear projection screen that is preferably spatially offset from the optical modulating array layer so that light from adjacent light sources of a common colour overlaps on the screen. A composite display with seamless edge blending may be obtained by tiling multiple display illumination modules behind a common rear-projection screen.Type: ApplicationFiled: September 8, 2010Publication date: September 20, 2012Applicant: MCMASTER UNIVERSITYInventor: Adrian Kitai
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Publication number: 20120067402Abstract: A solar window apparatus for collecting solar energy and regulating light transmission is provided in which the solar window comprises a plurality of transparent optical elements adhered to an internal surface of a transparent pane. The optical elements each comprise an externally facing surface and an internally facing light collecting surface with a light collecting element adhered thereto, where the externally facing surface preferably has an area that is larger than that of the light collecting surface. Each optical element further comprises two or more light directing surfaces that internally reflect and concentrate light onto the light collecting elements when light is incident over a first range of angles, and transmit light when light is incident over a second range of angles.Type: ApplicationFiled: March 5, 2010Publication date: March 22, 2012Applicant: McMaster UniversityInventors: Adrian Kitai, Wei Zhang
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Publication number: 20080218073Abstract: Systems and methods are provided for electroluminescent display elements. These electroluminescent display elements can include a dielectric layer having an upper surface and a lower surface and a top conductive layer having an upper surface and a lower surface, where the top conductive layer and the dielectric layer are positioned opposite one another so that the lower surface of the top conductive layer faces the upper surface of the dielectric layer. The electroluminescent display elements can further include a phosphor layer, where the phosphor layer is arranged between the dielectric layer and the top conductive layer, and a bottom conductive layer having an upper surface and a lower surface, where the bottom conductive layer and the dielectric layer are positioned opposite one another so that the upper surface of the bottom conductive layer faces the lower surface of the dielectric layer, and where the bottom conductive layer forms a first bottom electrode and a second bottom electrode.Type: ApplicationFiled: March 8, 2007Publication date: September 11, 2008Inventors: Adrian Kitai, Deven J. Anthony
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Publication number: 20080211652Abstract: A dynamic and customizable vehicle display system may include a flexible and addressable display panel that is conformable and attachable to a non-planar vehicle surface. A display module may receive data signals from a vehicle and send control signal to generate desired images on the addressable display. The display may operate in a plurality of modes and may switch modes upon the occurrence of a particular event. A user input device may be provided to customize the characteristics of the displayed images and the display module may be programmed to dynamically change image characteristics in response to the occurrence of particular events.Type: ApplicationFiled: March 2, 2007Publication date: September 4, 2008Applicant: NANOLUMENS ACQUISITION, INC.Inventors: Richard C. Cope, John W. Wilson, Adrian Kitai
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Publication number: 20080113183Abstract: A two layer AR coating system for improving the contrast ratio of SSTFEL and Nixel devices. It is composed of an ITO layer and ultra-thin gold layer deposited on the surface of the EL devices. Thus the antireflection layer for a flexible emissive electroluminescent (EL) device comprises a layer of indium tin oxide (ITO) covering the surface of a flexible emissive electroluminescent device, and a layer of metal on top of the layer of indium tin oxide covering the surface of a flexible emissive electroluminescent device. The thicknesses of the layers may be adjusted to give destructive interference.Type: ApplicationFiled: April 26, 2007Publication date: May 15, 2008Inventors: Adrian Kitai, Yunxi Shi, Yingwei Xiang
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Publication number: 20080074049Abstract: A individually formed EL module device, named herein as a nixel, adapted to be integrated into a modular electroluminescent display (ELD), is presented. The nixel of the present invention can be in the form of a subpixel, a pixel, or a plurality thereof. The nixel can be made in a variety of shapes, and can be individually tested and sorted according to its mechanical and/or electrical attributes prior to being integrated into an ELD. A customized ELD can be made by selecting nixels of particular characteristics in accordance with ELD application and/or user specifications. Nixels can easily be arranged to form a variety of color patterns on an ELD. A nixel can include a lower electrode layer, a ceramic base layer, a first charge injection layer, a phosphor layer, a second charge injection layer and an upper electrode layer. Nixels can be positioned on a flexible display structure to produce a flexible and scalable ELD.Type: ApplicationFiled: September 26, 2006Publication date: March 27, 2008Inventors: Adrian Kitai, Aris Silzars, Joe K. Cochran, Richard C. Cope
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Publication number: 20070279367Abstract: The present invention provides a tiled optical fiber display device structure which includes a light emitting diode (LED) backlit liquid crystal display (LCD). Light from the LCD enters an array of optical fibers that directs the light to a viewing screen. The optical fibers eliminate the use of energy absorbing colour filters in conventional LCD's, and also enable the seamless tiling of multiple display modules.Type: ApplicationFiled: January 8, 2005Publication date: December 6, 2007Inventor: Adrian Kitai
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Publication number: 20070159090Abstract: New oxide phosphors based on gallium-indium oxide for electroluminescent materials. Bright red emission has been obtained using Ga2-x-yInxEuyO3 wherein x spans the range 0.1 to 0.4 and y spans the range in which it is soluble in the phosphor.Type: ApplicationFiled: April 7, 2004Publication date: July 12, 2007Inventors: Adrian Kitai, Zhimei Jiang, Ken Cook
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Publication number: 20070069642Abstract: The present invention provides an electroluminescent display device using dielectric spheres embedded in a flexible electrically conducting substrate. Each of the spherical dielectric particles has a first portion protruding through a top surface of the substrate and a second portion protruding through the bottom surface of the substrate. An electroluminescent phosphor layer is deposited on the first portion of each spherical dielectric particles and a continuous electrically conductive, substantially transparent electrode layer is located on the top surfaces of the electroluminescent phosphor layer and areas of the flexible electrically insulating substrate located between the top surfaces of the electroluminescent phosphor layer. A continuous electrically conductive electrode layer coated on the second portion of the spherical dielectric particles and areas of the flexible, electrically insulated substrate located between the second portions of the spherical dielectric particles.Type: ApplicationFiled: September 3, 2004Publication date: March 29, 2007Inventors: Adrian Kitai, Ying-wei Xiang, Brian Cox
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Publication number: 20070071882Abstract: A method of incorporating EL particles includes preparing target areas to receive EL particles and providing EL particles to the target areas. The method may include spot-heating target areas of a flexible substrate to form molten receiving areas adapted to receive an EL particle. EL particles may be provided to the target areas by a carrier tray or by a random process so that the EL particles adhere to the substrate at the target areas and form an EL apparatus. Pressure may be applied to embed the EL particles to a desired depth and top and bottom electrodes may be provided to the EL apparatus to form an EL display. A system for incorporating EL particles into a substrate may include a heat source adapted to spot-heat target areas and a carrier for providing EL particles to the target areas.Type: ApplicationFiled: September 26, 2006Publication date: March 29, 2007Inventors: Gary Thomas, Adrian Kitai
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Publication number: 20030039813Abstract: The present invention provides thin film dielectrics, and methods of producing them, with high-K performance, and high breakdown field strength and with self-healing breakdown properties. In one aspect there is provided a multilayer dielectric film having an interrupted grain structure, comprising a first sub layer comprising a first dielectric material having a columnar grain structure having a first orientation, a second sub layer comprising a second dielectric material on top of said first layer having an equiaxed grain structure that is different from the first sub layer and a third sub layer comprising third dielectric material on top of said second layer having a microstructure that is different from the second sub layer to provide an interrupted grain structure through said multilayer dielectric film.Type: ApplicationFiled: August 22, 2002Publication date: February 27, 2003Inventors: Adrian Kitai, Kenneth Cook, Xiaohua Deng, Doris Stevanovic
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Patent number: 6403204Abstract: Electroluminescent laminates having a thin film electroluminescent oxide phosphor layer on insulating substrates. Thin film EL laminates are produced using high dielectric constant layers, such as SrTiO3 and BaTiO3 next to the oxide phosphor layer on one or both sides of the oxide layer, primarily as stable charge injection, and trapping interface layers, and to increase the electric field in the phosphor. Electric breakdown protection through self-healing has been provided by traditional low K dielectrics in combination with an appropriate choice of adjacent electrode. The high dielectric constant materials employed also provide for a high capacitance layer, thereby increasing the electric field in the phosphor and increasing the charge transfer into the phosphor during emission. These thin film EL laminates demonstrate steep brightness-voltage behavior and have been prepared using green and red electroluminescent oxide phosphors.Type: GrantFiled: February 23, 2000Date of Patent: June 11, 2002Assignee: Guard, Inc.Inventors: Adrian Kitai, Kenneth Cook