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:
Nov. 14, 2006
Filed:
Feb. 04, 2003
Yoshihiro Kumagai, Niigata, JP;
Ichiro Matsuzaki, Tokyo, JP;
Yoshihiro Kumagai, Niigata, JP;
Ichiro Matsuzaki, Tokyo, JP;
Kuraray Co., Ltd., Kurashiki, JP;
Abstract
An object of the invention is to provide a rear projection screen that has a high contrast and produces high-quality images. The object is achieved by a rear projection screen and rear projection display apparatus having the same. This rear projection screen contains a vertical lenticular lens sheet on the viewer side, and the vertical lenticular lens sheet includes a lenticular lens capable of vertically refracting the incident light on its incident surface, black stripes in the vicinity of the focus of the lenticular lens in portions where the incident light does not pass through, and a flat surface on its viewer side.