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:
Jun. 21, 2011
Filed:
Apr. 24, 2007
Applicant:
Kwang-seok Jeong, Suwon-si, KR;
Inventor:
Kwang-Seok Jeong, Suwon-si, KR;
Assignee:
Samsung SDI Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electron emission device includes a substrate, a first electrode on the substrate, a second electrode electrically insulated from the first electrode, a first insulating layer between the first electrode and the second electrode, an electron emission source hole in the first insulating layer and the second electrode to expose the first electrode, and an electron emission source having a first electron emission material layer on the first electrode in the electron emission source hole and a second electron emission material layer on the first electron emission material layer.