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:
Mar. 17, 2009
Filed:
Jul. 09, 2003
Graham Roger Jones, Oxfordshire, GB;
Adrian Marc Simon Jacobs, Oxford, GB;
Grant Bourhill, Stow-on-the-Wold, GB;
David James Montgomery, Oxfordshire, GB;
Bronje Mary Musgrave, Abingdon, GB;
Graham Roger Jones, Oxfordshire, GB;
Adrian Marc Simon Jacobs, Oxford, GB;
Grant Bourhill, Stow-on-the-Wold, GB;
David James Montgomery, Oxfordshire, GB;
Bronje Mary Musgrave, Abingdon, GB;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An autostereoscopic display comprises a pixellated transflective spatial light modulator which is arranged to provide a visual indication to an observer of the amount of crosstalk caused by reflection of ambient illumination. The display comprises a rear parallax barrier between a backlight and the modulator. Part of the barrier is formed as a screen blocking transmitted light from a first region of the modulator so that the pixels in this region are visible only by reflection of ambient illumination. In a second region, the pixels are illuminated with both transmitted and reflected light. A controller sets the pixels of the first region to maximum intensity and the pixels of the second region to a fraction of the maximum intensity. The fraction corresponds, for example, to a maximum amount of crosstalk which is permissible for autostereoscopic viewing. When the brightness of the first region is darker than or the same as the brightness of the second region, crosstalk is sufficiently low to permit autostereoscopic viewing.