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:
Nov. 10, 2015
Filed:
Feb. 09, 2011
Applicants:
Shinro Inui, Hachioji, JP;
Nobuki Matsui, Saitama, JP;
Inventors:
Shinro Inui, Hachioji, JP;
Nobuki Matsui, Saitama, JP;
Assignee:
HITACHI MAXELL, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/16 (2006.01); H04N 9/31 (2006.01); G02F 1/1333 (2006.01); G03B 21/14 (2006.01); G03B 33/12 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
H04N 9/3144 (2013.01); G02F 1/133385 (2013.01); G03B 21/145 (2013.01); G03B 21/16 (2013.01); G02F 1/133528 (2013.01); G03B 33/12 (2013.01);
Abstract
A liquid crystal projector which prevents deterioration of the aluminum grid inorganic polarizing plate due to dust in the cooling air for cooling the liquid crystal panel module. A shade member along the surface of the inorganic polarizing plate prevents the surface from being directly hit by the cooling wind and thus prevents dust from attaching to the surface of the plate.