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. 02, 1999
Filed:
Mar. 28, 1997
Yong-ki Kim, Suwon, KR;
Samsung Electronics Co., Ltd., Kyungki-Do, KR;
Abstract
A holographic screen of a rear projection type for use in a projector for transmitting projection light received from a rear end of the projector onto a viewing surface. The holographic screen includes a holographic sheet having an incident surface for receiving projection light, a viewing surface for forming the projection light received by the incident surface into a viewable image, a plurality of protrusions disposed in parallel with each other for scattering the received projection light; and a plurality of light absorbers which are formed between the plurality of the protrusions on the viewing surface, for absorbing ambient light incident to the viewing surface. Thus, an image whose contrast is improved is displayed on a viewing surface.