Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 13, 2010
Patent Application Number
11719779
Date Filed
November 7, 2005
Patent Primary Examiner
Patent abstract
The present invention relates to a display device with a birefringent lens system having cylindrical lenses, extending in a main direction. The polarization of light modulated by a LC layer is twisted by a rotator layer (25′) in order to be perpendicular or parallel with this main direction. A birefringent compensation layer (26) is used to remove any ellipticity introduced by the rotator layer (25′). This provides improved contrast when the display device is used e.g. in a switchable 2D/3D display.
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