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. 20, 2007
Filed:
Jun. 10, 2004
Toshiyuki Hosaka, Matsumoto, JP;
Toshiyuki Hosaka, Matsumoto, JP;
Seiko Epson Corporation, , JP;
Abstract
A project is provided that includes a light source including three light emitting units in which a plurality of LEDs are disposed and which emits red light, green light, and blue light. A liquid crystal light valve is provided that modulates the red light, the green light, and the blue light emitted from the light source. The projector is constructed so as to be capable of projecting and displaying an image on a screen by projecting the light modulated by the liquid crystal light valve onto the screen. The light source is constructed with one out of the light emitting units including a different number of LEDs than the other light emitting units so that a ratio between respective amounts of red light, green light, and blue light incident on the liquid crystal light valve with all of the LEDs lit satisfies a predetermined condition.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile