Patents by Inventor Jialock Wong

Jialock Wong 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: 10535312
    Abstract: A method for driving a display having a plurality of pixels, where each pixel is capable of displaying a first color or a second color and is sandwiched between a first electrode and a pixel electrode, the method including applying a driving sequence which includes: (a) for a first time period, applying a first voltage potential between the first electrode and each of the pixel electrodes of a first group of pixels, and applying no voltage potential between the first electrode and each of the pixel electrodes of a second group of pixels of the second color, thereby causing the display device to display an image of the first color with a background of the second color; and (b) for a second time period, applying no voltage potential between the first electrode and each of the pixel electrodes of the first group of pixels, and applying a second voltage potential to each of the pixel electrodes corresponding to the second group of pixels, to clear the onetime image created in step (a).
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: January 14, 2020
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Robert A. Sprague, Andrew Ho, Yajuan Chen, HongMei Zang, Jialock Wong, Chein Wang
  • Publication number: 20180277045
    Abstract: A method for driving a display having a plurality of pixels, where each pixel is capable of displaying a first color or a second color and is sandwiched between a first electrode and a pixel electrode, the method including applying a driving sequence which includes: (a) for a first time period, applying a first voltage potential between the first electrode and each of the pixel electrodes of a first group of pixels, and applying no voltage potential between the first electrode and each of the pixel electrodes of a second group of pixels of the second color, thereby causing the display device to display an image of the first color with a background of the second color; and (b) for a second time period, applying no voltage potential between the first electrode and each of the pixel electrodes of the first group of pixels, and applying a second voltage potential to each of the pixel electrodes corresponding to the second group of pixels, to clear the onetime image created in step (a).
    Type: Application
    Filed: May 22, 2018
    Publication date: September 27, 2018
    Inventors: Robert A. SPRAGUE, Andrew HO, Yajuan CHEN, HongMei ZANG, Jialock WONG, Chein WANG
  • Patent number: 10002575
    Abstract: The disclosure is directed toward driving methods and a driving circuit which are particularly suitable for bi-stable displays. In certain embodiments, methods provide the fastest and most pleasing appearance to the desired image while maintaining the optimal image quality over the life expectancy of an electrophoretic display device.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: June 19, 2018
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Robert A. Sprague, Andrew Ho, Yajuan Chen, HongMei Zang, Jialock Wong, Chein Wang
  • Publication number: 20160335956
    Abstract: The disclosure is directed toward driving methods and a driving circuit which are particularly suitable for bi-stable displays. In certain embodiments, methods provide the fastest and most pleasing appearance to the desired image while maintaining the optimal image quality over the life expectancy of an electrophoretic display device.
    Type: Application
    Filed: May 6, 2016
    Publication date: November 17, 2016
    Inventors: Robert A. SPRAGUE, Andrew HO, Yajuan CHEN, HongMei ZANG, Jialock WONG, Chein WANG
  • Patent number: 9373289
    Abstract: The disclosure is directed toward driving methods and a driving circuit which are particularly suitable for bi-stable displays. In certain embodiments, methods provide the fastest and most pleasing appearance to the desired image while maintaining the optimal image quality over the life expectancy of an electrophoretic display device.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: June 21, 2016
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Robert Sprague, Andrew Ho, Yajuan Chen, Hongmei Zang, Jialock Wong, Chein Wang
  • Patent number: 9171508
    Abstract: The invention relates to waveforms, circuits and methods for driving bistable displays. The invention is directed to a method, comprising in combination: applying, across a bistable display device, a shaking signal comprising a plurality of positive and negative pulses each driven for a first time to disperse partially packed particles; applying, across the device, one or more first driving signals to first pixels of the device for second times that are sufficient to drive the first pixels to one or more reference states; and concurrently with the first driving signals, applying, across the device, one or more second driving signals to second pixels of the device for third times that are shorter than necessary to drive the second pixels to any of the one or more reference states.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: October 27, 2015
    Assignee: E Ink California, LLC
    Inventors: Robert A. Sprague, Wanheng Wang, Yajuan Chen, Andrew Ho, Bryan Hans Chan, Jialock Wong, HongMei Zang
  • Publication number: 20140300651
    Abstract: The invention relates to waveforms, circuits and methods for driving bistable displays. The invention is directed to a method, comprising in combination: applying, across a bistable display device, a shaking signal comprising a plurality of positive and negative pulses each driven for a first time to disperse partially packed particles; applying, across the device, one or more first driving signals to first pixels of the device for second times that are sufficient to drive the first pixels to one or more reference states; and concurrently with the first driving signals, applying, across the device, one or more second driving signals to second pixels of the device for third times that are shorter than necessary to drive the second pixels to any of the one or more reference states.
    Type: Application
    Filed: April 11, 2014
    Publication date: October 9, 2014
    Applicant: SiPix Imaging, Inc.
    Inventors: Robert A. SPRAGUE, Wanheng Wang, Yajuan Chen, Andrew Ho, Bryan Hans Chan, Jialock Wong, HongMei Zang
  • Patent number: 8730153
    Abstract: The disclosure relates to waveforms, circuits and methods for driving bistable displays.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: May 20, 2014
    Assignee: SiPix Imaging, Inc.
    Inventors: Robert Sprague, Wanheng Wang, Yajuan Chen, Andrew Ho, Bryan Hans Chan, Jialock Wong, Hong-Mei Zang
  • Patent number: 8462102
    Abstract: The disclosure relates to driving methods for bistable displays, in particular, driving methods comprising interleaving driving waveforms.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: June 11, 2013
    Assignee: SiPix Imaging, Inc.
    Inventors: Jialock Wong, Yajuan Chen, Robert Sprague, Hongmei Zang
  • Publication number: 20120320017
    Abstract: The disclosure is directed toward driving methods and a driving circuit which are particularly suitable for bi-stable displays. In certain embodiments, methods provide the fastest and most pleasing appearance to the desired image while maintaining the optimal image quality over the life expectancy of an electrophoretic display device.
    Type: Application
    Filed: August 28, 2012
    Publication date: December 20, 2012
    Inventors: Robert Sprague, Andrew Ho, Yajuan Chen, Hongmei Zang, Jialock Wong, Chein Wang
  • Publication number: 20120274671
    Abstract: The disclosure relates to waveforms, circuits and methods for driving bistable displays.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 1, 2012
    Applicant: SIPIX IMAGING, INC.
    Inventors: Robert Sprague, Wanheng Wang, Yajuan Chen, Andrew Ho, Bryan Hans Chan, Jialock Wong, Hong-Mei Zang
  • Patent number: 8243013
    Abstract: The disclosure relates to waveforms, circuits and methods for driving bistable displays.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: August 14, 2012
    Assignee: Sipix Imaging, Inc.
    Inventors: Robert Sprague, Wanheng Wang, Yajuan Chen, Andrew Ho, Bryan Hans Chan, Jialock Wong, Hong-Mei Zang
  • Publication number: 20090267970
    Abstract: The disclosure relates to driving methods for bistable displays, in particular, driving methods comprising interleaving driving waveforms.
    Type: Application
    Filed: April 21, 2009
    Publication date: October 29, 2009
    Inventors: Jialock Wong, Yajuan Chen, Robert Sprague, Hongmei Zang
  • Publication number: 20080303780
    Abstract: The disclosure is directed toward driving methods and a driving circuit which are particularly suitable for bi-stable displays. In certain embodiments, methods provide the fastest and most pleasing appearance to the desired image while maintaining the optimal image quality over the life expectancy of an electrophoretic display device.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 11, 2008
    Inventors: Robert Sprague, Andrew Ho, Yajuan Chen, Hongmei Zang, Jialock Wong, Chein Wang