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. 02, 2009
Filed:
Feb. 24, 2005
Applicant:
Sang-hyuck Ahn, Suwon-si, KR;
Inventor:
Sang-Hyuck Ahn, Suwon-si, KR;
Assignee:
Samsung SDI Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electron emission device includes components for inhibiting the diffusion of electron beams, decreasing the light emission of incorrect colors, and preventing the diode type electron emission due to the anode electric field. In particular, the electron emission device includes a substrate with grooves, and electron emission regions filling the grooves. Cathode electrodes are provided at the substrate such that the cathode electrodes are electrically connected to the electron emission regions. Gate electrodes are formed over the cathode electrodes while interposing an insulating layer.