Patents Assigned to Visitret Displays Ou
  • Patent number: 8947762
    Abstract: High display duty ratio and fast optical response electrophoretic display technology is presented by using an anti-ferroelectric coupling torque. The invention also consequently enables fine pixel pitch resolution by introducing photo lithography based switching element preparation method. Newly introduced casting film method for optical switching element preparation enables extremely fine size of switching element based on current well-established flat panel display volume manufacturing process.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: February 3, 2015
    Assignee: Visitret Displays OU
    Inventors: Akihiro Mochizuki, Madis-Marius Vahtre, Laura Pait
  • Publication number: 20140153080
    Abstract: This invention generally relates to the use of dipole charged balls having differently coloured hemispheres (bichromal balls) in twisting ball displays comprising a pair of planar addressing electrodes and the space between these electrodes that is filled with a thixotropic liquid into which has been dispersed a plurality of electrically charged and optically anisotropic rotatable elements.
    Type: Application
    Filed: June 6, 2010
    Publication date: June 5, 2014
    Applicant: VISITRET DISPLAYS OÜ
    Inventors: Madis-Marius Vahtre, Nicholas K. Sheridon, Juri LIIV
  • Patent number: 8681417
    Abstract: New type electrophoretic display mode is disclosed in this invention. Theoretical analysis of dielectric materials as optical switching media leads to much stronger driving torque in an electrophoresis environment. Introduction of ferroelectric coupling torque in an electrophoresis phenomenon, extremely fast electro-optical response is realized. This extremely fast optical response enables full motion video image and full-color reproduction on an electrophoretic display. These two advanced functions makes an electrophoretic display as an extremely power saving full functional display.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: March 25, 2014
    Assignee: Visitret Displays OU
    Inventors: Akihiro Mochizuki, Laura Päit, Madis Marius Vahtre
  • Publication number: 20130182311
    Abstract: New type of electrophoretic display mode is disclosed in this Invention. Introducing transparent medium in an electrophoresis technology, diversity application type of full motion video, full-color image capable electrophoretic display system is realized. New concept of optical switching element based on ferroelectric coupling torque enables both crisp full motion video image and non-power based still image. This display configuration is also effective to apply large billboard displays with significant power saving.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 18, 2013
    Applicant: Visitret Displays OU
    Inventors: Akihiro Mochizuki, Laura Päit, Madis Marius Vahtre
  • Publication number: 20130163066
    Abstract: New type electrophoretic display mode is disclosed in this invention. Theoretical analysis of dielectric materials as optical switching media leads to much stronger driving torque in an electrophoresis environment. Introduction of ferroelectric coupling torque in an electrophoresis phenomenon, extremely fast electro-optical response is realized. This extremely fast optical response enables full motion video image and full-color reproduction on an electrophoretic display. These two advanced functions makes an electrophoretic display as an extremely power saving full functional display.
    Type: Application
    Filed: December 27, 2011
    Publication date: June 27, 2013
    Applicant: Visitret Displays OU
    Inventors: Akihiro MOCHIZUKI, Laura PÄIT, Madis Marius VAHTRE
  • Patent number: 8383010
    Abstract: An active element that is based on an electret emulsion and that comprises particles of pre-polarized electret material as emulsion in neutral liquid and both poles of the particles are colored with different colors. For producing a neutral carrier liquid for the active element liquid fluorine carbon is used. For producing electret material for the active element solid polymerised fluorine carbon or electret wax is used. The active element is used for producing visual matrix displays, indicators, surfaces and surface coatings that change color by the application of a control voltage.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: February 26, 2013
    Assignee: Visitret Displays Ou
    Inventor: Jüri Liiv
  • Publication number: 20100038600
    Abstract: An active element that is based on an electret emulsion and that comprises particles of pre-polarized electret material as emulsion in neutral liquid and both poles of the particles are coloured with different colours. For producing a neutral carrier liquid for the active element liquid fluorine carbon is used. For producing electret material for the active element solid polymerised fluorine carbon or electret wax is used. The active element is used for producing visual matrix displays, indicators, surfaces and surface coatings that change colour by the application of a control voltage.
    Type: Application
    Filed: September 7, 2007
    Publication date: February 18, 2010
    Applicant: Visitret Displays OÜ
    Inventor: Jüri Liiv