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. 09, 2004
Filed:
Jul. 05, 2000
Jonathan Harrold, Oxford, GB;
David Ezra, Oxfordshire, GB;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A stereoscopic display comprises a spatial light modulator such as a liquid cryatal device. The modulator comprises an array of pixels such as RGB pixels. A retarder array is disposed on the front of the spatial light modulator. The array comprises first stripes and second stripes which extend vertically and alternate which each other horizontally. The first and second stripes supply light from the modulator to an observer with different, preferably orthogonal, polarizations. Each of the stripes has a width which is greater than the horizontal pitch of the pixels. In a preferred embodiment, a lenticular screen is disposed in front of the retarder array. The lenticules extend vertically and are spaced horizontally with a pitch which is substantially equal to the pitch of the pixels.