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. 08, 2011
Filed:
Jun. 16, 2005
Takuma Yanagisawa, Tsurugashima, JP;
Takuma Yanagisawa, Tsurugashima, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
In an information display apparatus such as a head-up display, while safety is being secured, visibility from a user is improved. Image data having an object such as an arrow showing an advancing direction or a road sign drawn on it are generated as information to be given to the user by a display information generating sectionand is output to a projector. When a light beam Rcorresponding to the image data is emitted from the projectorto a combiner, reflected light of the light beam Rand transmitted light of external light Rare combined in the combiner, so as to be viewed by the user. At this time, the display information generating sectionoutputs coordinate values showing a display position of the object to a transmittance control sectionand the transmittance control sectionspecifies a display region of the object based on the coordinate values, and reduces the transmittance in the specified region of the light control panelso as to reduce a transmitting amount of the external light R