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:
Oct. 28, 2014
Filed:
Jul. 11, 2011
Kimitaka Nomura, Osaka, JP;
Tomoo Takatani, Osaka, JP;
Hiroshi Fukushima, Osaka, JP;
Ryoh Kikuchi, Osaka, JP;
Kimitaka Nomura, Osaka, JP;
Tomoo Takatani, Osaka, JP;
Hiroshi Fukushima, Osaka, JP;
Ryoh Kikuchi, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Abstract
An arrangement with a shared polarizer disposed between two panels capable of displaying a 3D image using parallax barrier techniques is provided, where the quality of a displayed 3D image is prevented from decreasing due to the left-right imbalance in contrast ratio. The arrangement includes: a main panel; a switch panel for displaying a slit image serving as a parallax barrier; a polarizer located closer to the viewed side of the main panel; a polarizer located between the main panel and the switch panel; and a polarizer located closer to the side of the switch panel opposite the side closer to the main panel. The direction of rubbing for one of the alignment films of the switch panel is at an angle relative to the absorption axis of one of the polarizers such that a contrast ratio within a view range of the left and right eyes is equal to or higher than a reference value, the contrast ratio being measured on a visual line corresponding to the transmission axis of one of the polarizers.