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:
Aug. 30, 2005
Filed:
Aug. 17, 2004
Mikio Shiraishi, Yokohama, JP;
Yasuo Ohtsuka, Chigasaki, JP;
Kenji Fuse, Yokosuka, JP;
Toru Numata, Yokohama, JP;
Mikio Shiraishi, Yokohama, JP;
Yasuo Ohtsuka, Chigasaki, JP;
Kenji Fuse, Yokosuka, JP;
Toru Numata, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A display apparatus includes a light source, plural reflecting type light valves having a light incidence/reflection surface which reflects incident light from the light source, and a partition wall which partitions a space in the display apparatus into a cooling air side and a light incidence/reflection surface side. Plural cooling fans which cause air flow to respective ones of the light valves, and a discharge fan which discharges a cooling air inside of the display apparatus through an outlet port are provided. A respective one of the cooling fans flows air to a side which is opposite to the incidence/reflection surface of a respective one of the light valves and a path of the air flow is formed from at least one of the cooling fans to the outlet port in an order of the opposite side of the light valve, the light source and the discharge fan.