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:
Sep. 27, 2005
Filed:
Nov. 22, 2002
Applicants:
Myeong Soo Chang, Uiwang, KR;
Byung Gil Ryu, Seoul, KR;
Inventors:
Myeong Soo Chang, Uiwang, KR;
Byung Gil Ryu, Seoul, KR;
Assignee:
LG Electronics Inc., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J017/49 ; H01J005/16 ;
U.S. Cl.
CPC ...
Abstract
A plasma display panel includes a filter for controlling a light transmittance by selectively diffracting a light emitted from a discharge cell of a plasma display panel on the basis of an electric signal. A luminance efficacy can be enhanced by using the low-priced filter and the contrast of a plasma display panel can be improved.