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. 22, 2009
Filed:
Sep. 30, 2004
Toshifumi Yokoyama, Osaka, JP;
Ken'ichi Kasazumi, Osaka, JP;
Kazuhisa Yamamoto, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A display device of the present invention is provided with a light source () for emitting coherent light and displaying an image, and an image receiving part () comprising not less than two screens, onto which the coherent light is projected, wherein at least one of the screens constituting the image receiving part () is vibrated by an airflow applied to a front or rear surface of the image receiving part (). Further, the image receiving part () has a function of a speaker. Thereby, when coherent light is used as a light source for display, it is possible to suppress spots of light intensity which are called speckle noise and occur due to interference of laser beams reflected at the image receiving part.