Patents by Inventor Bruno Mourey

Bruno Mourey 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).

  • Process for controlling a matrix access display device
    Patent number: 4673256
    Abstract: The invention relates to controlling a matrix access display device comprising a layer of material reacting to a combined thermal and electric effect. According to the invention, the DC video control voltage is transformed into an AC voltage by switching the potentials of the electrodes applying the electric control field.
    Type: Grant
    Filed: November 26, 1984
    Date of Patent: June 16, 1987
    Assignee: Thomson-CSF
    Inventors: Robert Hehlen, Michel Hareng, Serge Le Berre, Bruno Mourey
  • Memory ferroelectric display addressed with AC and DC voltages
    Patent number: 4668051
    Abstract: A memory display device using a chiral C or H smectic liquid crystal, comprising a liquid crystal cell in which optically discernible textures are induced by means of DC electric fields of appropriate signs, these textures being maintained under the effect of AC electric fields.
    Type: Grant
    Filed: December 31, 1984
    Date of Patent: May 26, 1987
    Assignee: Thomson CSF
    Inventors: Bruno Mourey, Michel Hareng, Jean Pierre Le Pesant, Jean Noel Perbet
  • Screen of a display device using a mixed thermal and electrical effect
    Patent number: 4598978
    Abstract: A screen of a visual display device combining a thermal effect and an electrical effect for controlling an electrooptical material is obtained by replacing the glass plate of the screen facing the heating strips contributing to the thermal effect by a plate with better thermal insulation characteristics than glass, in order to reduce the control power.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: July 8, 1986
    Assignee: Thomson CSF
    Inventors: Bruno Mourey, Michel Hareng, Lydie Thirant
  • Smectic liquid crystal color display screen
    Patent number: 4593978
    Abstract: Smectic liquid crystal display screens for displaying a color image. The object of the invention is to obtain a color image from filtering layers deposited on the electrodes of a matrix display screen, the configuration of the electrodes supporting these layers being such that it avoids phenomena of interlineation of the colors.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: June 10, 1986
    Assignee: Thomson-CSF
    Inventors: Bruno Mourey, Michel Hareng
  • Electrodes for a device operating by electrically controlled fluid displacement
    Patent number: 4569575
    Abstract: The invention relates to devices by means of which it is possible to cause fluid globules to circulate within a capillary space by means of pairs of electrodes establishing capture sites. The invention provides a device in which the electrodes of two successive pairs have in common at least one indentation comprising a convex part and a concave part. The invention is applicable, in particular, to the visual display and storage of electrical data by means of movable indices in the form of globules.
    Type: Grant
    Filed: June 19, 1984
    Date of Patent: February 11, 1986
    Assignee: Thomson-CSF
    Inventors: Jean P. Le Pesant, Michel Hareng, Bruno Mourey, Jean N. Perbet