Patents by Inventor Youngsoo Park

Youngsoo Park 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).

  • Publication number: 20090321738
    Abstract: Provided may be a display apparatus that uses oxide diodes having a nano rod structure, for example, nano-rod diodes formed of a ZnO group material. The display apparatus may include a substrate, a thin film transistor layer on the substrate, and a light emitting layer on the thin film transistor layer, wherein the light emitting layer may include a plug metal layer on the thin film transistor layer, a plurality of nano-rod diodes vertically formed on the plug metal layer, and a transparent electrode on the nano-rod diodes.
    Type: Application
    Filed: October 6, 2008
    Publication date: December 31, 2009
    Inventors: Kyoungkook Kim, Youngsoo Park, Jaechul Park
  • Publication number: 20090321776
    Abstract: Provided is a multi-chip package light emitting diode (LED) device including a plurality of LED chips within a single package. The LED device may include a base substrate, a multi-chip package for a LED on the base substrate, and a light radiator surrounding the multi-chip package and radiating light emitted by the multi-chip package for a LED, wherein the multi-chip package for a LED may include a plurality of LED chips on a single wafer substrate.
    Type: Application
    Filed: December 16, 2008
    Publication date: December 31, 2009
    Inventors: Kyoungkook Kim, Youngsoo Park
  • Publication number: 20090315590
    Abstract: An inverter device includes at least a first transistor connected between a power source node and ground. The first transistor includes a first gate and a first terminal that are internally capacitive-coupled to control a boost voltage at a boost node. The first terminal is one of a first source and a first drain of the first transistor.
    Type: Application
    Filed: January 7, 2009
    Publication date: December 24, 2009
    Inventors: Huaxiang Yin, Youngsoo Park, Jaechul Park, Sunil Kim
  • Publication number: 20090309843
    Abstract: Provided is a touch panel using a zinc oxide (ZnO) nano wire. The touch panel may include a first transparent substrate, a first transparent electrode layer on the first transparent substrate, a light transmissive nano wire layer including a plurality of piezoelectric nano wires that may be arranged on the first transparent electrode layer so as to be perpendicular to the first transparent electrode layer, a second transparent electrode layer on the nano wire layer, and a second transparent substrate on the second transparent electrode layer.
    Type: Application
    Filed: November 7, 2008
    Publication date: December 17, 2009
    Inventors: Sangwook Kim, Youngsoo Park, Changjung Kim
  • Publication number: 20090305468
    Abstract: Provided is a method of manufacturing an oxide semiconductor thin film transistor using a transparent oxide semiconductor as a material for a channel. The method of manufacturing the oxide semiconductor thin film transistor includes forming a passivation layer on a channel layer and performing an annealing process for one hour or more at a temperature of about 100° C. or above.
    Type: Application
    Filed: January 30, 2009
    Publication date: December 10, 2009
    Inventors: Jisim Jung, Youngsoo Park, Sangyoon Lee, Changjung Kim, Taesang Kim, Jangyeon Kwon, Kyungseok Son
  • Publication number: 20090302315
    Abstract: A resistive random access memory (RRAM) includes a switch region formed of a material having bi-polar properties; and a memory resistor formed of a material having uni-polar properties. The RRAM further includes a lower electrode formed below the switch region; an upper electrode formed on the memory resistor; and an intermediate electrode formed between the switch region and the memory resistor.
    Type: Application
    Filed: February 27, 2009
    Publication date: December 10, 2009
    Inventors: Changbum Lee, Youngsoo Park, Myoungjae Lee, Bosoo Kang, Seungeon Ahn, Kihwan Kim
  • Publication number: 20090262563
    Abstract: Provided are a memory device where data may be recorded one time and/or reproduced repeatedly, and a method and display apparatus for operating the memory device. The memory device may include a program area having a plurality of memory cells and a spare area having a plurality of memory cells. The memory device may include a memory cell layer having the program area and the spare area. The memory cell layer may include a plurality of vertically stacked memory cell layers. Each of the plurality of memory cell layers may include the program area and the spare area. The program area and the spare area may be either vertical or horizontal to one another.
    Type: Application
    Filed: March 6, 2009
    Publication date: October 22, 2009
    Inventor: Youngsoo Park
  • Publication number: 20090122228
    Abstract: In a directly-illuminated liquid crystal display (LCD), for example an LCD monitor or an LCD-TV, a number of light management films, including a diffuser layer, lie between the light source and the LCD panel to provide bright, uniform illumination. The diffuser layer is attached to a substrate which is separate from the light source and the LCD panel, or may be attached to either the LCD panel or, when using a two dimensional light source, to the light source. The other light management layers may also be attached to the separate substrate or to the LCD panel or two-dimensional light source. High levels of illumination uniformity at the LCD may be achieved with a uniform (non-patterned) diffuser, even with relatively low levels of diffusion, when the diffuser is used with a brightness enhancing layer.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 14, 2009
    Inventors: Byungsoo Ko, Mark D. Gehlsen, Chingwen Chen, Robert M. Emmons, James W. Laumer, Ji-Hyung Kim, Ji-Hwa Lee, Kang-il Seo, Ryan T. Fabick, Linda M. Rivard, Kenneth A. Epstein, Chideuk Kim, Youngsoo Park
  • Publication number: 20090086525
    Abstract: A multi-layered memory device is provided. The multi-layered memory device includes two or more memory units and an active circuit unit arranged between each of the two or more memory units. The active circuit includes a decoder. Each memory unit includes one or more memory layers. Each memory layer includes a memory array.
    Type: Application
    Filed: September 11, 2008
    Publication date: April 2, 2009
    Inventors: Jaechul Park, Keewon Kwon, Youngsoo Park, Seunghoon Lee, Seungeon Ahn
  • Patent number: 7446827
    Abstract: In a directly-illuminated liquid crystal display (LCD), for example an LCD monitor or an LCD-TV, a number of light management films, including a diffuser layer, lie between the light source and the LCD panel to provide bright, uniform illumination. The diffuser layer is attached to a substrate which is separate from the light source and the LCD panel, or may be attached to either the LCD panel or, when using a two dimensional light source, to the light source. The other light management layers may also be attached to the separate substrate or to the LCD panel or two-dimensional light source. High levels of illumination uniformity at the LCD may be achieved with a uniform (non-patterned) diffuser, even with relatively low levels of diffusion, when the diffuser is used with a brightness enhancing layer.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: November 4, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Byungsoo Ko, Mark D. Gehlsen, Chingwen Chen, Robert M. Emmons, James W. Laumer, Ji-Hyung Kim, Ji-Hwa Lee, Kang-il Seo, Ryan T. Fabick, Linda M. Rivard, Kenneth A. Epstein, Chideuk Kim, Youngsoo Park
  • Patent number: 7436469
    Abstract: In a directly-illuminated liquid crystal display (LCD), for example an LCD monitor or an LCD-TV, a number of light management layers lie between the light source and the LCD panel to provide bright, uniform illumination. The light management layers, including, for example, a diffuser, a reflective polarizer and a brightness enhancing layer, are contained in a light management unit that is formed from two subassemblies. The two subassemblies each contain a substrate and are attached together so as to leave a gap between the two subassemblies. The diffuser is located in one of the subassemblies, and the other light management layers may be in either of the subassemblies, or may be disposed in the gap between the subassemblies.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: October 14, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Mark D. Gehlsen, Chingwen Chen, Byungsoo Ko, Robert M. Emmons, James W. Laumer, Ryan T. Fabick, Linda M. Rivard, Kenneth A. Epstein, Youngsoo Park, Chideuk Kim, James A. Stevenson
  • Publication number: 20060082700
    Abstract: In a directly-illuminated liquid crystal display (LCD), for example an LCD monitor or an LCD-TV, a number of light management layers lie between the light source and the LCD panel to provide bright, uniform illumination. The light management layers, including, for example, a diffuser, a reflective polarizer and a brightness enhancing layer, are contained in a light management unit that is formed from two subassemblies. The two subassemblies each contain a substrate and are attached together so as to leave a gap between the two subassemblies. The diffuser is located in one of the subassemblies, and the other light management layers may be in either of the subassemblies, or may be disposed in the gap between the subassemblies.
    Type: Application
    Filed: October 15, 2004
    Publication date: April 20, 2006
    Inventors: Mark Gehlsen, Chingwen Chen, Byungsoo Ko, Robert Emmons, James Laumer, Ryan Fabick, Linda Rivard, Kenneth Epstein, Youngsoo Park, Chideuk Kim, James Stevenson
  • Publication number: 20060082698
    Abstract: In a directly-illuminated liquid crystal display (LCD), for example an LCD monitor or an LCD-TV, a number of light management films, including a diffuser layer, lie between the light source and the LCD panel to provide bright, uniform illumination. The diffuser layer is attached to a substrate which is separate from the light source and the LCD panel, or may be attached to either the LCD panel or, when using a two dimensional light source, to the light source. The other light management layers may also be attached to the separate substrate or to the LCD panel or two-dimensional light source. High levels of illumination uniformity at the LCD may be achieved with a uniform (non-patterned) diffuser, even with relatively low levels of diffusion, when the diffuser is used with a brightness enhancing layer.
    Type: Application
    Filed: October 15, 2004
    Publication date: April 20, 2006
    Inventors: Byungsoo Ko, Mark Gehlsen, Chingwen Chen, Robert Emmons, James Laumer, Ji-Hyung Kim, Ji-Hwa Lee, Kang-il Seo, Ryan Fabick, Linda Rivard, Kenneth Epstein, Chideuk Kim, Youngsoo Park
  • Patent number: 6890974
    Abstract: The present invention relates to a powder coating composition containing a low temperature curable epoxy resin, and more particularly to a powder coating composition containing a low temperature curable epoxy resin, which can be readily cured at a low temperature, thereby capable of being applied to coating objects that are noneconomic al in terms of workability at an elevated temperature, or are thermally sensitive. The present invention provides a powder coating composition comprising 100 parts by weight of a low temperature curable epoxy resin; 30 to 500 parts by weight of curing.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: May 10, 2005
    Assignee: Kukdo Chemical Co., Ltd.
    Inventors: Chongsoo Park, Youngsoo Park, Jinwoo Kim
  • Patent number: 6593401
    Abstract: The present invention relates to a powder coating composition containing a low temperature curable epoxy resin, and more particularly to a powder coating composition containing a low temperature curable epoxy resin, which can be readily cured at a low temperature, thereby capable of being applied to coating objects that are noneconomical in terms of workability at an elevated temperature, or are thermally sensitive. The present invention provides a powder coating composition comprising 100 parts by weight of a low temperature curable epoxy resin; 30 to 500 parts by weight of a bisphenol-A curing agent or a polyester curing agent; 0.1 to 20 parts by weight of a defoaming agent; and 0.1 to 20 parts by weight of a leveling agent.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: July 15, 2003
    Assignee: Kukdo Chemical Co., Ltd.
    Inventors: Chongsoo Park, Jinseon Yu, Youngsoo Park, Jinwoo Kim
  • Publication number: 20030130441
    Abstract: The present invention relates to a powder coating composition containing a low temperature curable epoxy resin, and more particularly to a powder coating composition containing a low temperature curable epoxy resin, which can be readily cured at a low temperature, thereby capable of being applied to coating objects that are noneconomical in terms of workability at an elevated temperature, or are thermally sensitive. The present invention provides a powder coating composition comprising 100 parts by weight of a low temperature curable epoxy resin; 30 to 500 parts by weight of curing.
    Type: Application
    Filed: December 18, 2002
    Publication date: July 10, 2003
    Applicant: KUKDO CHEMICAL CO., LTD.
    Inventors: Chongsoo Park, Youngsoo Park, Jinwoo Kim