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:
Sep. 27, 2011
Filed:
Apr. 16, 2008
Young-chol Lee, Gunpo-si, KR;
Sang-hyun Sohn, Yongin-si, KR;
Yong-dok Cha, Suwon-si, KR;
Seok-chan Hong, Yongin-si, KR;
Young-chol Lee, Gunpo-si, KR;
Sang-hyun Sohn, Yongin-si, KR;
Yong-dok Cha, Suwon-si, KR;
Seok-chan Hong, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A projection display apparatus includes: an illumination optical unit which emits beams; an image display element which modulates the beams according to image information; a spatial-beam changing unit which changes spatial positions of the beams emitted from the illumination optical unit; and a uniform-beam distribution unit, disposed between the spatial-beam changing unit and the image display element, which uniformly distributes the beams. The spatial-beam changing unit includes a moveable prism, a movement of which changes the spatial positions of the beams emitted therefrom.