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:
May. 16, 2006
Filed:
Jul. 07, 2005
Satoshi Ouchi, Kamakura, JP;
Taro Imahase, Fujisawa, JP;
Tomohiro Miyoshi, Fujisawa, JP;
Fukuyasu Abe, Yokohama, JP;
Satoshi Ouchi, Kamakura, JP;
Taro Imahase, Fujisawa, JP;
Tomohiro Miyoshi, Fujisawa, JP;
Fukuyasu Abe, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An image display device has three reflective image display elements for red, green and blue to form an optical image according to a video signal from light output from a light source, and an optical system to supply light onto the display elements and to combine and output the light reflected from the display elements. The image display device includes a first polarity converting unit to convert luminous flux from the light source to S polarized light, a first polarized beam splitter, and second polarized beam splitter. The reflective image display element for green is provided in a vicinity of the first polarized beam splitter, and the light reflected by the first polarized beam splitter and input to the reflective image display element for green is S polarized light. The light output from the reflective image display element for green permeates the first and second polarized beam splitters.