Patents by Inventor Gary Yih-Ming Kang

Gary Yih-Ming Kang 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).

  • Patent number: 9346987
    Abstract: The invention is directed to compositions and methods for improving the physicomechanical and electro-optical properties of an electrophoretic or liquid crystal display and also to semi-finished or finished display panels with improved physicomechanical properties. The invention is further directed to a display device comprising display cells filled with a display fluid and top-sealed with a top-sealing layer, wherein the top-sealing layer has a thickness of less than 10 microns measured at the center area.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: May 24, 2016
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Xiaojia Wang, Cheri Pereira, Jack Hou, Gary Yih-Ming Kang
  • Patent number: 9279906
    Abstract: The present invention is directed to a microstructure film comprising an area of microstructures and two edge areas, wherein the height of the highest part in the edge areas exceeds the height of the highest point in the microstructures, preferably by about 1 ?m to about 1 mm. The application also describes how such a film may be manufactured.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: March 8, 2016
    Assignee: E INK CALIFORNIA, LLC
    Inventor: Gary Yih-Ming Kang
  • Publication number: 20140065369
    Abstract: The present invention is directed to a microstructure film comprising an area of microstructures and two edge areas, wherein the height of the highest part in the edge areas exceeds the height of the highest point in the microstructures, preferably by about 1 ?m to about 1 mm. The application also describes how such a film may be manufactured.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Inventors: Craig LIN, Gary Yih-Ming Kang, Bryan Hans Chan, HongMei Zang
  • Publication number: 20140050814
    Abstract: The invention is directed to an embossing assembly and methods for its preparation. The assembly comprises a drum, a non-expandable insert and an embossing sleeve and it is particularly useful for the preparation of microcups used in a display device. The assembly may also comprise only a drum and an embossing sleeve.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 20, 2014
    Inventors: Gary Yih-Ming KANG, Hanan Liu, Du Quy Le
  • Patent number: 8625188
    Abstract: This invention relates to a process for the manufacture of a multi-color electrophoretic display involving adding colorant solutions or dispersions of different colors and charged pigment particles in separate steps. The process comprises a first step of pattern-wise filling colorant solutions or dispersions into microcups in predetermined areas, followed by a step of pattern-wise or non-pattern-wise adding an electrophoretic fluid comprising charged pigment particles dispersed in a dielectric solvent or solvent mixture into the microcups which are pre-filled with the colorants.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: January 7, 2014
    Assignee: SiPix Imaging, Inc.
    Inventors: Xiaojia Wang, Rong-Chang Liang, Gary Yih-Ming Kang
  • Patent number: 8154790
    Abstract: This invention relates to a display device comprising a plurality of display cells, wherein said display cells are separated by slanted partition walls. This invention also relates to a display device comprising a plurality of display cells, wherein said display cells are separated by indented partition walls having indented areas. The electrophoretic structures of the present invention may be manufactured by a continuous or semi-continuous roll-to-roll manufacturing process. The structures in which display cells are separated by slanted partition walls or partition walls having indented areas are capable of providing enhanced color states.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: April 10, 2012
    Assignee: Sipix Imaging, Inc.
    Inventors: Xiaojia Wang, Robert A. Sprague, Gary Yih-Ming Kang
  • Patent number: 8114262
    Abstract: The invention is directed to an assembly for electroplating comprising an electroplating bath and non-conductive plates. The invention is also directed to an assembly for electroplating comprising an electroplating bath, elements with electrically adjustable resistance, and ampere-hour meters. The invention is further directed to methods for monitoring, controlling and adjusting the thickness distribution of an electroplated material on an object. The object can be of any shape as long as it can electrically charged.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: February 14, 2012
    Assignee: SiPix Imaging, Inc.
    Inventors: Gary Yih-Ming Kang, Yi-Shung Chaug
  • Patent number: 7982479
    Abstract: The present invention relates to methods for inspection of defects in an electrophoretic display and related devices. The method may be carried out with one or more testing electrodes. The method comprises applying a voltage difference to two testing electrodes which are in contact with the display panel, or applying a voltage difference to a testing electrode and a electrode layer. The methods may be applied in in-line or off-line inspection of a display panel.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: July 19, 2011
    Assignee: SiPix Imaging, Inc.
    Inventors: Wanheng Wang, Yi-Shung Chaug, Yajuan Chen, Gary Yih-Ming Kang, Jimmy Yen
  • Publication number: 20100288639
    Abstract: This invention relates to a process for the manufacture of a multi-color electrophoretic display involving adding colorant solutions or dispersions of different colors and charged pigment particles in separate steps. The process comprises a first step of pattern-wise filling colorant solutions or dispersions into microcups in predetermined areas, followed by a step of pattern-wise or non-pattern-wise adding an electrophoretic fluid comprising charged pigment particles dispersed in a dielectric solvent or solvent mixture into the microcups which are pre-filled with the colorants.
    Type: Application
    Filed: March 2, 2010
    Publication date: November 18, 2010
    Inventors: Xiaojia Wang, Rong-Chang Liang, Gary Yih-Ming Kang
  • Patent number: 7767126
    Abstract: The invention is directed to an embossing assembly comprising an embossing sleeve having a three-dimensional pattern formed thereon, an expandable insert; and a drum over which said sleeve and said expandable insert are mounted. The present invention is also directed to a method for preparing an embossing drum or an embossing sleeve. The present invention is further directed to a method for controlling the thickness of a plating material over the surface of a drum or sleeve in an electroplating process.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: August 3, 2010
    Assignee: SiPix Imaging, Inc.
    Inventors: Gary Yih-Ming Kang, John Hanan Liu, Yi-Shung Chaug
  • Publication number: 20100103501
    Abstract: This invention relates to a display device comprising a plurality of display cells, wherein said display cells are separated by slanted partition walls. This invention also relates to a display device comprising a plurality of display cells, wherein said display cells are separated by indented partition walls having indented areas. The electrophoretic structures of the present invention may be manufactured by a continuous or semi-continuous roll-to-roll manufacturing process. The structures in which display cells are separated by slanted partition walls or partition walls having indented areas are capable of providing enhanced color states.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 29, 2010
    Inventors: Xiaojia WANG, Robert A. SPRAGUE, Gary Yih-Ming KANG
  • Patent number: 7683606
    Abstract: The present invention provides methods and systems for testing and inspection of a display panel. The methods involve the application of voltages to rollers or testing conductive films. By applying a potential difference to the appropriate rollers or testing conductive films, different optical states of a display panel can be displayed for inspection.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: March 23, 2010
    Assignee: Sipix Imaging, Inc.
    Inventors: Gary Yih-Ming Kang, John Hanan Liu, Wanheng Wang, Yi-Shung Chaug
  • Publication number: 20100033803
    Abstract: The invention is directed to compositions and methods for improving the physicomechanical and electro-optical properties of an electrophoretic or liquid crystal display and also to semi-finished or finished display panels with improved physicomechanical properties. The invention is further directed to a display device comprising display cells filled with a display fluid and top-sealed with a top-sealing layer, wherein the top-sealing layer has a thickness of less than 10 microns measured at the center area.
    Type: Application
    Filed: June 16, 2009
    Publication date: February 11, 2010
    Inventors: Xiaojia Wang, Cheri Pereira, Jack Hou, Rong-Chang Liang, Gary Yih-Ming Kang
  • Publication number: 20080169821
    Abstract: The present invention relates to methods for inspection of defects in an electrophoretic display and related devices. The method may be carried out with one or more testing electrodes. The method comprises applying a voltage difference to two testing electrodes which are in contact with the display panel, or applying a voltage difference to a testing electrode and a electrode layer. The methods may be applied in in-line or off-line inspection of a display panel.
    Type: Application
    Filed: April 4, 2007
    Publication date: July 17, 2008
    Inventors: Wanheng Wang, Yi-Shung Chaug, Yajuan Chen, Gary Yih-Ming Kang, Jimmy Yen