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:
Mar. 09, 2010
Filed:
Jul. 25, 2007
Yasunobu Hashimoto, Kawasaki, JP;
Yasushi Yoneda, Kawasaki, JP;
Kenji Awamoto, Kawasaki, JP;
Seiichi Iwasa, Kawasaki, JP;
Yasunobu Hashimoto, Kawasaki, JP;
Yasushi Yoneda, Kawasaki, JP;
Kenji Awamoto, Kawasaki, JP;
Seiichi Iwasa, Kawasaki, JP;
Hitachi Plasma Patent Licensing Co., Ltd., Tokyo, JP;
Abstract
A method for driving an AC type surface-discharge display device which has cells arranged in a matrix. Each of the cells has at least three electrodes including a pair of main electrodes on every line of the matrix and an address electrode on every column of the matrix. The method includes providing an address preparation period applying a charge producing pulse and applying a charge adjusting pulse. The charge adjusting pulse has a waveform monotonously falling from a reference potential and a negative polarity and is applied to the second main electrode used as a scan electrode and generates feeble electric discharges between the first and second main electrodes. The feeble electric discharges are accompanied by a decrease of the wall voltage formed by the charge producing pulse.