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:
Feb. 25, 2020
Filed:
Sep. 17, 2018
Coretronic Corporation, Hsin-Chu, TW;
Haw-Woei Pan, Hsin-Chu, TW;
Chih-Hsien Tsai, Hsin-Shu, TW;
Yi-Hsuang Weng, Hsin-Chu, TW;
Chi-Tang Hsieh, Hsin-Chu, TW;
Jo-Han Hsu, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
A projection device for forming an image frame on a projection screen includes a first illumination system for emitting an illumination beam, a second illumination system for emitting an ultraviolet beam, a first light valve located on a transmission path of the illumination beam and for converting the illumination beam into a visible image beam, a lens located on a transmission path of the visible image beam and the ultraviolet beam and for projecting the visible image beam onto the projection screen to form an image frame area and projecting the ultraviolet beam onto the projection screen to form an opaque area, and a processor electrically connected to the first illumination system and the second illumination system and for controlling the first illumination system to emit the illumination beam and controlling the second illumination system to emit the ultraviolet beam. The image frame area partially overlaps the opaque area.