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:
Jul. 05, 2011
Filed:
May. 02, 2007
Chan-wook Baik, Yongin-si, KR;
Jeong-hee Lee, Yongin-si, KR;
Jeong-na Heo, Yongin-si, KR;
Deuk-seok Chung, Yongin-si, KR;
Tae-won Jeong, Yongin-si, KR;
Kyoung-won Min, Yongin-si, KR;
Chan-Wook Baik, Yongin-si, KR;
Jeong-Hee Lee, Yongin-si, KR;
Jeong-Na Heo, Yongin-si, KR;
Deuk-Seok Chung, Yongin-si, KR;
Tae-Won Jeong, Yongin-si, KR;
Kyoung-Won Min, Yongin-si, KR;
Abstract
A method for driving a field emission device (FED) applies an alternating (AC) voltage as a driving voltage for emitting electrons in a field emission device comprising cathode electrode including an emitter and an anode electrode facing the cathode electrode. A method for aging an FED uses a constant voltage so that electrons cannot be emitted from the electron emission source, and an AC voltage so that electrons can be periodically emitted from the emitter when the FED is aged.