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:
Dec. 02, 2008
Filed:
Jan. 25, 2005
Masanori Takeuchi, Kawasaki, JP;
Yasuji Noguchi, Kawasaki, JP;
Yutaka Chiaki, Kawasaki, JP;
Shunji Oota, Kawasaki, JP;
Masanori Takeuchi, Kawasaki, JP;
Yasuji Noguchi, Kawasaki, JP;
Yutaka Chiaki, Kawasaki, JP;
Shunji Oota, Kawasaki, JP;
Fujitsu Hitachi Plasma Display Limited, Kawasaki, JP;
Abstract
A plasma display apparatus, in which the display quality of a dark image is improved and which uses a subfield method, has been disclosed. The plasma display apparatus comprises a plasma display panel, a sustain pulse cycle changing means for detecting the display load ratio of each subfield and changing the sustain pulse cycle of each subfield according to the display load ratio, and an adaptive subfield number changing means for calculating a vacant time in a display frame generated by changing the sustain pulse cycle, judging whether a subfield can be added according to the vacant time, and determining the number of subfields in the display frame.