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:
Jul. 28, 2015
Filed:
Dec. 15, 2009
Mitsunari Hoshi, Tokyo, JP;
Mitsunari Hoshi, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A retardation element allowing a reduction in ghosts caused by optical anisotropy of a base film, and a display including the retardation element are provided. A retardation element includes: a base film having optical anisotropy; and a retardation layer formed on the base film and having optical anisotropy, in which the retardation layer includes retardation regions of two or more kinds of which slow axes are oriented in different directions from one another, the retardation regions of two or more kinds are arranged regularly adjacent to one another in an in-plane direction of the base film, and each of the retardation regions has a slow axis in a direction intersecting with a slow axis of the base film at an angle larger than 45°.