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.

Date of Patent:
Aug. 07, 2012

Filed:

Aug. 20, 2007
Applicants:

Sung Ho Hwang, Suwon-si, KR;

Jee Hoon Sung, Suwon-si, KR;

Pil Yong OH, Suwon-si, KR;

Jun Seok Park, Suwon-si, KR;

Inventors:

Sung Ho Hwang, Suwon-si, KR;

Jee Hoon Sung, Suwon-si, KR;

Pil Yong Oh, Suwon-si, KR;

Jun Seok Park, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 9/12 (2006.01); H04N 9/31 (2006.01);
U.S. Cl.
CPC ...
Abstract

A projection type display apparatus is capable of significantly reducing operational noise of a color wheel. The projection type display apparatus includes a color wheel, a color wheel assembly in which the color wheel is installed, and a noise damping section which changes air flow caused by a rotation of the color wheel so as to reduce the noise.


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