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:
Oct. 15, 2013
Filed:
Nov. 09, 2011
Applicant:
Hiroyuki Hirakawa, Osaka, JP;
Inventor:
Hiroyuki Hirakawa, Osaka, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A driving method of an electron emitting device which includes a first electrode, a particle layer formed on the first electrode and including insulating particles, and a second electrode formed on the particle layer includes: applying a voltage between the first and second electrodes to emit electrons from the first electrode so that the electrons are accelerated through the particle layer and emitted from the second electrode, wherein the applied voltage includes pulses which have a first frequency and are oscillated at a second frequency lower than the first frequency.