Nemoptic

Assistance Publique-Hopitaux De Paris

Sorbonne Université

Universite Paris Cité

Inserm

Pulsesight Therapeutics

Jean-Denis Laffitte

Francine Behar-Cohen

Philippe Martinot-Lagarde

Jacques Angele

Christophe Moureaux

Stéphane Joly

Christophe Body

François Leblanc

François Cabaud

Travis Michael Craft

Benjamin Lee Ko

Jacob William Schubert

Jerome Joseph Schafer

Michael D Auld

A method for addressing a bistable nematic matrix LCD having two stable textures without any applied electric field. Pixel addressing is of the passive multiplex type. The method includes selecting the value of the electrical voltage applied between the substrates so that an average value of the voltage, preferably the average quadratic value, since the initial command for image display up to the time immediately preceding switching, has a predetermined value independent of the information to be displayed, which is the same for all the pixels of the image.

Addressing method for a bistable nematic liquid crystal matrix screen with regulated average quadratic voltage

The invention relates to a bistable nematic liquid crystal matricial display device wherein the shift to one of the at least two bistable states is carried out by displacing the liquid crystal parallel to the surfaces of the device, characterized by the fact that it comprises a system for addressing various elements of the display device, characterized in that it comprises a system for addressing the various elements of the display device such that it does not simultaneously shift two adjacent elements located in the direction in which the material flows. The invention also relates to a display method. The invention makes it possible to control the grey level by controlling the scan rings of the hydrodynamic flow in order to define the border between two different textures.

Advanced method and device with a bistable nematic liquid crystal display

Growing community of inventors

Leuville sur Orge, France

Jean-Denis Laffitte