Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kazuhisa Yamamoto0
Toshifumi Yokoyama0
Ken'ichi Kasazumi0
Date of Patent
September 22, 2009
Patent Application Number
10573990
Date Filed
September 30, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
A display device of the present invention is provided with a light source (4) for emitting coherent light and displaying an image, and an image receiving part (1) 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 (1) is vibrated by an airflow applied to a front or rear surface of the image receiving part (1). Further, the image receiving part (1) 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.
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