Patents Assigned to PolyDisplay ASA
  • Patent number: 7678292
    Abstract: An ionic dopant comprising a sulfur or a phosphorus containing anion with a randon cation, for use in a smectic A liquid crystal composition. The cation preferably comprises a quaternary ammonium cation.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: March 16, 2010
    Assignee: Polydisplay ASA
    Inventors: Kjetil A. Netland, Maxim V. Mitrokhine, Lorenzo Williams, Kjetil H. Holm, Fiona J. Farrand
  • Patent number: 7397530
    Abstract: This invention relates to a method for encapsulation of liquid crystals to form spherical particles with a narrow size distribution. More specific, this invention relates to a method for encapsulation of liquid crystals that are suitable to be employed in liquid crystal displays, including displays intended to be used in large boards outdoors.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: July 8, 2008
    Assignee: Polydisplay ASA
    Inventors: Anne Dalager Dyrli, Ruth Baumberger Schmid, Cecilie Kristiansen, Jan K. Nielsen, Maxim Miltrokhin, Lorenzo Williams
  • Patent number: 6923701
    Abstract: The present invention relates to a thin display (15), and a method of manufacturing the same. The display (15) comprises an isolated substrate 80), with cavities (60) also called micro pockets in a pattern, or created with a separate sheet (55) with holes (60) mounted on the substrate (80). These micro pockets (60) will make the picture elements of the display (15). The display (15) further comprises perforated holes (70) in the centre of the micro pockets (60) and a conductive material (40, 50) covering the surfaces inside the micro pockets (60) and the perforated holes. An electro-optical material (30) fill the cavities (60), and a uniform layer of transparent conductive material (20) cover all the filled micro pockets (60). A top layer of a transparent substrate (10) cover the conductive layer (20).
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: August 2, 2005
    Assignee: PolyDisplay ASA
    Inventor: Børre Holter
  • Publication number: 20050067941
    Abstract: The present invention relates to a thin display, and a method of manufacturing the same. The display comprises an isolated substrate, with cavities also called micro pockets in a pattern, or created with a separate sheet with holes mounted on the substrate. These micro pockets will make the picture elements of the display. The display further comprises perforated holes in the centre of the micro pockets and a conductive material covering the surfaces inside the micro pockets and the perforated holes. An electro-optical material fill the cavities, and a uniform layer of transparent conductive material cover all the filled micro pockets. A top layer of a transparent substrate cover the conductive layer.
    Type: Application
    Filed: November 17, 2004
    Publication date: March 31, 2005
    Applicant: PolyDisplay ASA
    Inventor: Borre Holter
  • Publication number: 20030124931
    Abstract: The present invention relates to a thin display (15), and a method of manufacturing the same. The display (15) comprises an isolated substrate 80), with cavities (60) also called micro pockets in a pattern, or created with a separate sheet (55) with holes (60) mounted on the substrate (80). These micro pockets (60) will make the picture elements of the display (15). The display (15) further comprises perforated holes (70) in the centre of the micro pockets (60) and a conductive material (40, 50) covering the surfaces inside the micro pockets (60) and the perforated holes. An electro-optical material (30) fill the cavities (60), and a uniform layer of transparent conductive material (20) cover all the filled micro pockets (60). A top layer of a transparent substrate (10) cover the conductive layer (20).
    Type: Application
    Filed: November 14, 2002
    Publication date: July 3, 2003
    Applicant: PolyDisplay ASA
    Inventor: Borre Holter
  • Publication number: 20030112204
    Abstract: The invention concerns a display board, a method of driving and a method for building low frame rate scalable display boards from special liquid crystal display devices.
    Type: Application
    Filed: November 14, 2002
    Publication date: June 19, 2003
    Applicant: PolyDisplay ASA
    Inventor: Gunnar B. Pettersen