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. 29, 2006
Filed:
Mar. 03, 2003
Makoto Onozawa, Kawasaki, JP;
Yasuji Noguchi, Kawasaki, JP;
Ayahito Kojima, Kawasaki, JP;
Hideaki Ohki, Yokohama, JP;
Makoto Onozawa, Kawasaki, JP;
Yasuji Noguchi, Kawasaki, JP;
Ayahito Kojima, Kawasaki, JP;
Hideaki Ohki, Yokohama, JP;
Fujitsu Hitachi Plasma Display Limited, Kawasaki, JP;
Abstract
A display device that can prevent the thermal destruction and screen burn-in caused by display patterns has been disclosed. In this device, the display luminance is determined by the number of light emissions, and there are provided a sustain frequency control section that controls the sustain frequency, a load ratio calculation section that calculates the load ratio for each frame of display data, plural counters, a load ratio counter control section that controls so as to increase the counts of the counters corresponding to the load ratio level calculated by the load ratio calculation section, and a first judgment section that outputs a first control signal when any of the counts exceeds a first reference value, wherein the sustain frequency control section decreases the sustain frequency according to the first control signal.