Patents by Inventor Zarng-Arh George Wu

Zarng-Arh George Wu 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).

  • Electrophoretic display and process for its manufacture
    Patent number: 9081250
    Abstract: This invention relates to an electrophoretic display comprising a plurality of cells, each of said cells comprises: a) partition walls; b) an electrophoretic fluid filled therein; c) a polymeric sealing layer to enclose the electrophoretic fluid within the cell; and d) an interface between the electrophoretic fluid and the sealing layer.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: July 14, 2015
    Assignee: E Ink California, LLC
    Inventors: Rong-Chang Liang, Mary Chan-Park, Scott C-J Tseng, Zarng-Arh George Wu, HongMei Zang
  • ELECTROPHORETIC DISPLAY AND PROCESS FOR ITS MANUFACTURE
    Publication number: 20140057056
    Abstract: This invention relates to an electrophoretic display comprising a plurality of cells, each of said cells comprises: a) partition walls; b) an electrophoretic fluid filled therein; c) a polymeric sealing layer to enclose the electrophoretic fluid within the cell; and d) an interface between the electrophoretic fluid and the sealing layer.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 27, 2014
    Applicant: SiPix Imaging, Inc.
    Inventors: Rong-Chang LIANG, Mary CHAN-PARK, Scott C-J TSENG, Zarng-Arh George WU, HongMei ZANG
  • Process for preparing a display panel
    Patent number: 8582197
    Abstract: This application is directed to processes for preparing electrophoretic displays and semi-finished display panels comprising display cells prepared from the microcup and top-sealing technologies. The semi-finished display panel comprises an array of display cells sandwiched between two temporary substrate layers, between a temporary substrate layer and a conductor layer or between a temporary substrate layer and a permanent substrate layer, wherein said display cells are filled with an electrophoretic fluid and top-sealed with a polymeric sealing layer formed from a top-sealing composition which is being hardened while on top of the electrophoretic fluid.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: November 12, 2013
    Assignee: SiPix Imaging, Inc.
    Inventors: Rong-Chang Liang, Mary Chan-Park, Scott C-J Tseng, Zarng-Arh George Wu, HongMei Zang, Xiaojia Wang
  • Methods and compositions for improved electrophoretic display performance
    Patent number: 8547628
    Abstract: The invention is directed to methods and compositions useful for improving the performance of electrophoretic displays. The methods comprise adding a conductive filler in the form of nanoparticles and having a volume resistivity of less than about 104 ohm cm into at least one electrode protecting layer of the display.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: October 1, 2013
    Assignee: SiPix Imaging, Inc.
    Inventors: Zarng-Arh George Wu, Xiaojia Wang, Xin Weng, Yajuan Chen, Rong-Chang Liang, HongMei Zang, Yayong Liu
  • Electrophoretic display and process for its manufacture
    Patent number: 8520292
    Abstract: This invention relates to an electrophoretic display comprising a plurality of cells, each of said cells comprises: a) partition walls; b) an electrophoretic fluid filled therein; c) a polymeric sealing layer to enclose the electrophoretic fluid within the cell; and d) an interface between the electrophoretic fluid and the sealing layer.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: August 27, 2013
    Assignee: SiPix Imaging, Inc.
    Inventors: Rong-Chang Liang, Mary Chan-Park, Scott C-J Tseng, Zarng-Arh George Wu, HongMei Zang
  • Methods and compositions for improved electrophoretic display performance
    Patent number: 8179589
    Abstract: The invention is directed to novel methods and compositions useful for improving the performance of electrophoretic displays. The methods comprise adding a high absorbance dye or pigment, or conductive particles, or a conductive filler in the form of nanoparticles and having a volume resistivity of less than about 104 ohm cm, or a charge transport material into an electrode protecting layer of the display.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: May 15, 2012
    Assignee: SiPix Imaging, Inc.
    Inventors: Zarng-Arh George Wu, Jeanne E. Haubrich, Xiaojia Wang, Rong-Chang Liang
  • METHODS AND COMPOSITIONS FOR IMPROVED ELECTROPHORETIC DISPLAY PERFORMANCE
    Publication number: 20120013971
    Abstract: The invention is directed to methods and compositions useful for improving the performance of electrophoretic displays. The methods comprise adding a conductive filler in the form of nanoparticles and having a volume resistivity of less than about 104 ohm cm into at least one electrode protecting layer of the display.
    Type: Application
    Filed: August 31, 2011
    Publication date: January 19, 2012
    Inventors: Zarng-Arh George Wu, Xiaojia Wang, Xin Weng, Yajuan Chen, Rong-Chang Liang, HongMei Zang, Yayong Liu
  • PROCESS FOR PREPARING A DISPLAY PANEL
    Publication number: 20110217896
    Abstract: This application is directed to processes for preparing electrophoretic displays and semi-finished display panels comprising display cells prepared from the microcup and top-sealing technologies. The semi-finished display panel comprises an array of display cells sandwiched between two temporary substrate layers, between a temporary substrate layer and a conductor layer or between a temporary substrate layer and a permanent substrate layer, wherein said display cells are filled with an electrophoretic fluid and top-sealed with a polymeric sealing layer formed from a top-sealing composition which is being hardened while on top of the electrophoretic fluid.
    Type: Application
    Filed: February 14, 2011
    Publication date: September 8, 2011
    Inventors: Rong-Chang Liang, Mary Chan-Park, Scott C-J Tseng, Zarng-Arh George Wu, HongMei Zang, Xiaojia Wang
  • Process for forming a patterned thin film structure on a substrate
    Patent number: 8002948
    Abstract: A process for forming a patterned thin film structure on a substrate is disclosed. A pattern is printed with a material, such as a masking coating or an ink, on the substrate, the pattern being such that, in one embodiment, the desired thin film structures will be formed in the areas where the printed material is not present, i.e., a negative image of thin film structure to be formed is printed. In another embodiment, the pattern is printed with a material that is difficult to strip from the substrate, and the desired thin film structures will be formed in the areas where the printed material is present, i.e., a positive image of the thin film structure is printed. The thin film material is deposited on the patterned substrate, and the undesired area is stripped, leaving behind the patterned thin film structures.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: August 23, 2011
    Assignees: SiPix Imaging, Inc., Etansi Inc.
    Inventors: Jeanne E. Haubrich, Yi-Shung Chaug, Zarng-Arh George Wu, Rong-Chang Liang, Xiaojia Wang
  • ELECTROPHORETIC DISPLAY AND PROCESS FOR ITS MANUFACTURE
    Publication number: 20110000605
    Abstract: This invention relates to an electrophoretic display comprising a plurality of cells, each of said cells comprises: a) partition walls; b) an electrophoretic fluid filled therein; c) a polymeric sealing layer to enclose the electrophoretic fluid within the cell; and d) an interface between the electrophoretic fluid and the sealing layer.
    Type: Application
    Filed: April 1, 2010
    Publication date: January 6, 2011
    Inventors: Rong-Chang Liang, Mary Chan-Park, Scott C-J Tseng, Zarng-Arh George Wu, HongMei Zang
  • METHODS AND COMPOSITIONS FOR IMPROVED ELECTROPHORETIC DISPLAY PERFORMANCE
    Publication number: 20100301280
    Abstract: The invention is directed to novel methods and compositions useful for improving the performance of electrophoretic displays. The methods comprise adding a high absorbance dye or pigment, or conductive particles, or a conductive filler in the form of nanoparticles and having a volume resistivity of less than about 104 ohm cm, or a charge transport material into an electrode protecting layer of the display.
    Type: Application
    Filed: August 16, 2010
    Publication date: December 2, 2010
    Inventors: Zarng-Arh George Wu, Xiaojia Wang, Xin Weng, Yajuan Chen, Rong-Chang Liang
  • Methods and compositions for improved electrophoretic display performance
    Patent number: 7800813
    Abstract: The invention is directed to novel methods and compositions useful for improving the performance of electrophoretic displays. The methods comprise adding a high absorbance dye or pigment, or conductive particles, or a conductive filler in the form of nanoparticles and having a volume resistivity of less than about 104 ohm cm, or a charge transport material into an electrode protecting layer of the display.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: September 21, 2010
    Assignee: SiPix Imaging, Inc.
    Inventors: Zarng-Arh George Wu, Xiaojia Wang, Xin Weng, Yajuan Chen, Rong-Chang Liang
  • Electrophoretic display
    Patent number: 7715088
    Abstract: This invention relates to an electrophoretic display comprising a plurality of cells, each of said cells comprises: a) partition walls; b) an electrophoretic fluid filled therein; c) a polymeric sealing layer to enclose the electrophoretic fluid within the cell; and d) an interface between the electrophoretic fluid and the sealing layer.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: May 11, 2010
    Assignee: Sipix Imaging, Inc.
    Inventors: Rong-Chang Liang, Mary Chan-Park, Scott C-J Tseng, Zarng-Arh George Wu, HongMei Zang
  • Segment electrophoretic displays and methods for their manufacture
    Patent number: 7715087
    Abstract: The present invention relates to novel patterned embossing and patterned filling methods. Both methods are simple, reliable and cost effective ways for manufacturing the segment of signage electrophoretic displays. The displays prepared by the present invention requires only one patterned electrode layer. The undesired visible line traces are eliminated and the manufacture of the present displays does not involve the costly precision registration step used in the previously known assembly processes dealing with two patterned electrodes. Moreover, the electrophoretic fluid is present only in the patterned and switchable area of the display. This not only significantly reduces the material cost, but also improves the overall display quality by reducing defects and non-uniformity.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: May 11, 2010
    Assignee: Sipix Imaging, Inc.
    Inventors: Jack Hou, Scott C-J Tseng, Zarng-Arh George Wu, Rong-Chang Liang
  • Electrophoretic display and process for its manufacture
    Patent number: 7557981
    Abstract: This invention relates to an electrophoretic display comprising cells which are filled with charged particles dispersed in a solvent and are individually sealed with a polymeric sealing layer.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: July 7, 2009
    Assignee: Sipix Imaging, Inc.
    Inventors: Rong-Chang Liang, Mary Chan-Park, Scott C-J Tseng, Zarng-Arh George Wu, HongMei Zang
  • Electrophoretic display and process for its manufacture
    Patent number: 7522332
    Abstract: This invention relates to an electrophoretic display comprising cells which are filled with charged particles dispersed in a solvent and are individually sealed with a polymeric sealing layer.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: April 21, 2009
    Assignee: Sipix Imaging, Inc.
    Inventors: Rong-Chang Liang, Mary Chan-Park, Scott C-J Tseng, Zarng-Arh George Wu, HongMei Zang
  • Process for imagewise opening and filling color display components and color displays manufactured thereof
    Patent number: 7385751
    Abstract: This invention relates to the field of electrophoretic displays. In particular, it relates to imagewise opening, filling and sealing multicolor display components and the manufacture of multicolor displays.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: June 10, 2008
    Assignee: SiPix Imaging, Inc.
    Inventors: Xianhai Chen, HongMei Zang, Zarng-Arh George Wu, Rong-Chang Liang
  • Core-shell particles for electrophoretic display
    Patent number: 7382514
    Abstract: The invention relates to electrophoretic displays comprising core-shell pigment particles having a core of low specific gravity and low refractive index and a shell of high refractive index.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: June 3, 2008
    Assignee: Sipix Imaging, Inc.
    Inventors: Wan Peter Hsu, Huiyong Paul Chen, Denis Leroux, Zarng-Arh George Wu, Rong-Chang Liang
  • Methods and compositions for improved electrophoretic display performance
    Patent number: 7347957
    Abstract: The invention is directed to novel methods and compositions useful for improving the performance of electrophoretic displays. The methods comprise adding a high absorbance dye or pigment, or conductive particles, or a conductive filler in the form of nanoparticles and having a volume resistivity of less than about 104 ohm cm, or a charge transport material into an electrode protecting layer of the display.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: March 25, 2008
    Assignee: SiPix Imaging, Inc.
    Inventors: Zarng-Arh George Wu, Xiaojia Wang, Xin Weng, Yajuan Chen, Rong-Chang Liang
  • Compositions and processes for format-flexible, roll-to-roll manufacturing of electrophoretic displays
    Patent number: 7307778
    Abstract: The invention is directed to compositions and processes useful for the roll-to-roll manufacturing of electrophoretic displays.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: December 11, 2007
    Assignee: SiPix Imaging, Inc.
    Inventors: Xiaojia Wang, Chia-Pu Chang, Sean Kiluk, Zarng-Arh George Wu, Rong-Chang Liang