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:
May. 12, 2009
Filed:
Nov. 25, 2004
Cécile Joubert, Orsay, FR;
Daniel Stoenescu, Orsay, FR;
Alexandre Carton, Calais, FR;
Patrice Davi, Sevres, FR;
Cécile Joubert, Orsay, FR;
Daniel Stoenescu, Orsay, FR;
Alexandre Carton, Calais, FR;
Patrice Davi, Sevres, FR;
Nemoptic, Magny les Hameaux, FR;
Abstract
The invention relates to a nematic liquid crystal display having two stable states, without an electric field, obtained by anchoring break, characterized in that it comprises two polarizers (), one () of which is placed on the observer side, the other () being placed on the opposite side of the liquid crystal cell whereby the latter is at least partially reflecting in order to define a reflective mode or transflective mode. The orientation of the two polarizers () is offset by a value which is equal to the rotatory power of the cell at approximately +/−30°.