Patents by Inventor Xiaojia Zhang

Xiaojia Zhang 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: 10386691
    Abstract: A total internal reflection image display comprised of dry electrostatically mobile particles composed of a solid material stably floating as a dispersant in a gas and exhibiting a high fluidity in an aerosol state may be sealed between the transparent sheet capable of total internal reflection such as comprising a plurality of transparent convex or hemi-spherical protrusions and the rear support, partition walls and the dry particles may be moved by application of a voltage bias. A method of manufacture is described comprising of the steps of forming partition walls, filling with dry particles, sealing the particles into cells or compartments.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: August 20, 2019
    Assignee: CLEARink Display, Inc.
    Inventor: Xiaojia Zhang
  • Patent number: 10332435
    Abstract: The present invention provides a solution for a highlight or multicolor display device, in which each display cell can display high quality color states. More specifically, an electrophoretic fluid is provided which comprises three types of pigment particles, having different levels of size, threshold voltage or charge intensity.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: June 25, 2019
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Ming Wang, Yu Li, Hui Du, Xiaojia Zhang, Craig Lin
  • Patent number: 10329328
    Abstract: A fusion protein has a first antigen element, a second antigen element, and optionally a tag sequence and/or a signal peptide sequence. The first antigen element includes a polypeptide derived from the Mycobacterium tuberculosis Psts-1 protein. The second antigen element includes a polypeptide derived from a protein encoded by a HPV gene. The fusion protein can induce humoral immunity and cellular immunity to a high-risk HPV cancer protein and has anti-cancer activity in vivo.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: June 25, 2019
    Assignee: ATTOGEN BIOMEDICAL (SUZHOU) INC. LTD.
    Inventors: Xiaojia Chang, Chenglong Shi, Lijun Shi, Jiecheng Zhang
  • Patent number: 10325703
    Abstract: A varistor component and a method for securing a varistor component are disclosed. In an embodiment, a varistor includes a first external contact, a second external contact, a varistor electrically connected to the first external contact, a path between the varistor and the second external contact and an active releasing device including a shutter and a heat sensitive element, wherein the heat sensitive element releases the shutter under abnormal operation conditions and the shutter closes the path between the varistor and the second external contact.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: June 18, 2019
    Assignee: EPCOS AG
    Inventors: Shaoyu Sun, Xiaojia Tian, Rongguang Zhang
  • Publication number: 20180173074
    Abstract: Total internal reflection image displays are equipped with a bistability enhancement particle interaction layer. The bistability enhancement layer imparts bistability in the display at 0V or power off. The bistability enhancement layer may hold particles near the surface in the evanescent wave region at the front electrode at 0V or power off to retain a dark state image. The particle interaction layer may hold particles near the surface of the rear electrode at 0V or power off to retain a bright state image. Control of particle density improves bistability.
    Type: Application
    Filed: August 31, 2016
    Publication date: June 21, 2018
    Applicant: CLEARink Displays, Inc
    Inventors: Xiaojia Zhang, Thomas Johansson, Bram Sadlik
  • Publication number: 20170357137
    Abstract: The present invention is directed to an electrophoretic fluid which comprises additive particles. The concentration of the additive particles in the electrophoretic fluid does not exceed 25% by weight and the additive particles are not seen at the viewing side during operation of the display. The resulting fluid can improve optical performance of a display device, such as image stability and contrast ratio. The present invention is also directed to an electrophoretic display comprising the electrophoretic fluid.
    Type: Application
    Filed: August 28, 2017
    Publication date: December 14, 2017
    Inventors: Ming WANG, Yu LI, Hui DU, Haiyan GU, Roman IVANOV, Robert A. SPRAGUE, HongMei ZANG, Xiaojia ZHANG
  • Patent number: 9778537
    Abstract: The present invention is directed to an electrophoretic fluid which comprises additive particles. The concentration of the additive particles in the electrophoretic fluid is 2.5% to 25% by weight and the additive particles are not seen at the viewing side during operation of the display. The resulting fluid can improve optical performance of a display device, such as image stability and contrast ratio. The present invention is also directed to an electrophoretic display comprising the electrophoretic fluid.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: October 3, 2017
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Ming Wang, Yu Li, Hui Du, Xiaojia Zhang, Haiyan Gu, Roman Ivanov, Robert A. Sprague, HongMei Zang
  • Patent number: 9740075
    Abstract: New reflective display architecture embodiments are disclosed to create specular or paper-like reflectance comprising a transparent outer sheet with an optional light diffusing layer, a rear backplane electrode, a perforated continuous reflective or non-reflective film with a thin conductive reflective or transparent layer acting as a front electrode facing the transparent outward sheet placed between the transparent outward sheet and rear backplane electrode. Other variations include semi-retroreflective or sintered TiO2 layers atop the front electrode. Light is modulated by reflectance or absorbance of the light rays that pass through the transparent outward sheet by movement of light absorbing electrophoretically mobile particles within an optically transparent liquid or air medium. A voltage bias is applied across the medium by a voltage source to move the electrophoretically mobile particles.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: August 22, 2017
    Assignee: CLEARink Displays, Inc.
    Inventors: Bram M. Sadlik, Lorne A. Whitehead, Xiaojia Zhang
  • Publication number: 20170098417
    Abstract: The present invention is directed to methods of passively driving an electrophoretic display. The electrophoretic fluid comprises three types of particles wherein two types particles are charged pigment particles having opposite charge polarities and contrasting colors. The third type of particle is larger in diameter than the first and second types of particles, and is less charged than the first and second types of particles, i.e., the third particle type is substantially uncharged. The electrophoretic medium is driven with two sets of electrodes, each set comprising a number of addressable electrodes.
    Type: Application
    Filed: December 19, 2016
    Publication date: April 6, 2017
    Inventors: Ming WANG, Craig LIN, Hui DU, HongMei ZANG, Xiaojia ZHANG
  • Patent number: 9557623
    Abstract: The present invention is directed to an electrophoretic display device which is suitable for passive matrix driving. The electrophoretic fluid may comprise two types of charged pigment particles wherein the two types of charged pigment particles carry opposite charge polarities, have contrasting colors and have different levels of charge intensity. Alternatively, there may be a third type of particles added to the fluid.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: January 31, 2017
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Ming Wang, Craig Lin, Hui Du, HongMei Zang, Xiaojia Zhang
  • Patent number: 9541814
    Abstract: The present invention is directed to a color display device in which each pixel can display at least five high-quality color states, and an electrophoretic fluid for such an electrophoretic display. In one aspect, the different types of particles exhibit different levels of attraction force to display different color states. In another aspect, the different types of particles exhibit different levels of mobility in different driving voltage ranges to display different color states.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: January 10, 2017
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Craig Lin, Ming Wang, Hui Du, Xiaojia Zhang, Yu Li, Roman Ivanov, Yajuan Chen
  • Publication number: 20160377950
    Abstract: A total internal reflection image display comprised of dry electrostatically mobile particles composed of a solid material stably floating as a dispersant in a gas and exhibiting a high fluidity in an aerosol state may be sealed between the transparent sheet capable of total internal reflection such as comprising a plurality of transparent convex or hemi-spherical protrusions and the rear support, partition walls and the dry particles may be moved by application of a voltage bias. A method of manufacture is described comprising of the steps of forming partition walls, filling with dry particles, sealing the particles into cells or compartments.
    Type: Application
    Filed: June 23, 2016
    Publication date: December 29, 2016
    Inventor: Xiaojia ZHANG
  • Publication number: 20160266422
    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: May 6, 2016
    Publication date: September 15, 2016
    Inventors: Xiaojia ZHANG, Cheri PEREIRA, Jack HOU, Rong-Chang LIANG
  • Publication number: 20160260372
    Abstract: The present invention provides a solution for a highlight or multicolor display device, in which each display cell can display high quality color states. More specifically, an electrophoretic fluid is provided which comprises three types of pigment particles, having different levels of size, threshold voltage or charge intensity.
    Type: Application
    Filed: May 12, 2016
    Publication date: September 8, 2016
    Inventors: Ming Wang, Yu Li, Hui Du, Xiaojia Zhang, Craig Lin
  • Patent number: 9423666
    Abstract: The present invention is directed to an electrophoretic fluid which comprises uncharged or lightly charged neutral buoyancy particles. The resulting fluid can improve not only image stability but also contrast ratio of a display device, without significantly affecting the switching speed. The present invention is also directed to an electrophoretic display comprising display cells filled with the electrophoretic fluid.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: August 23, 2016
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Ming Wang, Yu Li, Hui Du, Xiaojia Zhang, Haiyan Gu, Roman Ivanov, Robert Sprague
  • Patent number: 9360733
    Abstract: The present invention provides a solution for a highlight or multicolor display device, in which each display cell can display high quality color states. More specifically, an electrophoretic fluid is provided which comprises three types of pigment particles, having different levels of size, threshold voltage or charge intensity.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: June 7, 2016
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Ming Wang, Yu Li, Hui Du, Xiaojia Zhang, Craig Lin
  • Publication number: 20160139483
    Abstract: The present invention is directed to an electrophoretic fluid which comprises additive particles. The concentration of the additive particles in the electrophoretic fluid is 2.5% to 25% by weight and the additive particles are not seen at the viewing side during operation of the display. The resulting fluid can improve optical performance of a display device, such as image stability and contrast ratio. The present invention is also directed to an electrophoretic display comprising the electrophoretic fluid.
    Type: Application
    Filed: January 21, 2016
    Publication date: May 19, 2016
    Inventors: Ming Wang, Yu Li, Hui Du, Xiaojia Zhang, Haiyan Gu, Roman Ivanov, Robert A. Sprague, HongMei Zang
  • Patent number: 9251736
    Abstract: This application is directed to driving methods for electrophoretic displays. The driving methods comprise applying different voltages selected from multiple voltage levels, to pixel electrodes and optionally also to the common electrodes. In one embodiment, the different voltages are selected from a group consisting of 0V, at least two levels of positive voltage and at least two levels of negative voltage. The driving method is also suitable for a color display device.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: February 2, 2016
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Craig Lin, Tin Pham, Bryan Chan, Manasa Peri, Ming Wang, Yu Li, Hui Du, Xiaojia Zhang
  • Publication number: 20160026062
    Abstract: This invention relates to an electrophoretic display fluid comprising non-charged or slightly charged color particles and at least one type of charged pigment particles, all dispersed in a solvent or solvent mixture, and an electrophoretic display device utilizing such a display fluid. The electrophoretic fluid of the present invention provides improved image qualities.
    Type: Application
    Filed: September 28, 2015
    Publication date: January 28, 2016
    Inventor: Xiaojia Zhang
  • Publication number: 20150378236
    Abstract: The present invention is directed to an electrophoretic display device which is suitable for passive matrix driving. The electrophoretic fluid may comprise two types of charged pigment particles wherein the two types of charged pigment particles carry opposite charge polarities, have contrasting colors and have different levels of charge intensity. Alternatively, there may be a third type of particles added to the fluid.
    Type: Application
    Filed: September 9, 2015
    Publication date: December 31, 2015
    Inventors: Ming Wang, Craig Lin, Hui Du, HongMei Zang, Xiaojia Zhang