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:
Apr. 20, 1999
Filed:
Apr. 19, 1996
Kazuyuki Yano, Mobara, JP;
Mitsuru Tanaka, Mobara, JP;
Futaba Denshi kogyo, K.K., Mobara, JP;
Abstract
A unit for driving an image display device capable of preventing occurrence of luminescent spots on a display plane due to a leakage voltage of the unit. The drive unit includes gate electrodes and cathode electrodes arranged so as to define a matrix by cooperation with each other. At least two reset pulses are applied to each of the gate electrodes during a period of time for which it is kept nonselected to cause a voltage increased due to the leakage voltage to be reduced to a level of a reference potential and the gate electrode is kept at an increased impedance during a period of time for which the gate electrode is kept from being fed with the reset pulses.