The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 14, 2004
Filed:
Nov. 12, 2002
Ivan N. Dozov, Gir Sur Yvette, FR;
Philippe R. Martinot-Lagarde, Marcousis, FR;
Daniel N. Stoenescu, Orsay, FR;
NEMOPTIC, Magny-Les-Hameaux, FR;
Abstract
The present invention relates to a reflective liquid crystal display device comprising a liquid crystal material ( ) contained between two parallel substrates ( ) provided with aligning means on the electrodes to orient the liquid crystal and enable at least two alternative distinct textures that are stable or metastable in the absence of a field to be obtained, means for applying electrical signals to the liquid crystal to perform switching by enabling anchoring on at least one of the two substrates to be broken, a polarizer ( ) associated with the front face of the device and oriented at an angle lying in the range 15° to 75° relative to the director of the liquid crystal on the front face of the device, and a specular or diffusing reflective element ( ) placed at the rear face of the liquid crystal.