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:
Aug. 13, 2013
Filed:
Jan. 07, 2009
Jean-louis DE Bougrenet DE LA Tocnaye, Guilers, FR;
Laurent Dupont, Plouzane, FR;
Emmanuel Daniel, Le Relecq Kerhuon, FR;
Jean-Louis De Bougrenet De La Tocnaye, Guilers, FR;
Laurent Dupont, Plouzane, FR;
Emmanuel Daniel, Le Relecq Kerhuon, FR;
Institut Telecom/Telecom Bretagne, Brest Cedex, FR;
Abstract
Liquid crystal spectacles are provided for three-dimensional viewing of digital video content from a projector. The viewing spectacles include a first rectilinear polariser and a second rectilinear polariser respectively having polarisation axes Pand P, the polarisation axes Pand Pbeing parallel or perpendicular relative to each other. Furthermore, the liquid crystal has an adapted intrinsic tilt angle and is used in a half-wave blade configuration. The liquid crystal further includes first and second separate areas, each respectively located opposite a vision axis. The first area includes a first director and the second area includes a second director. The first and second directors are oriented so as to define an adapted angle between them. This enables a 'non-one-eyed' vision while waiting for the projection of the film to start, and to obtain the best possible contrast between the two eyes of the user when viewing the digital video content.