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:
Mar. 24, 2009
Filed:
Jun. 19, 2006
Jun-hee Choi, Suwon-si, KR;
Andrei Zoulkarneev, Suwon-si, KR;
Jun-Hee Choi, Suwon-si, KR;
Andrei Zoulkarneev, Suwon-si, KR;
Samsung SDI Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A field emission device comprises a glass substrate, an emitter electrode formed on the glass substrate, a carbon nanotube (CNT) emitter formed on the emitter electrode, and a gate stack formed around the CNT emitter for extracting electron beams from the CNT emitter and focusing the extracted electron beams onto a given position. The gate stack includes a mask layer covering the emitter electrode and provided around the CNT emitter, a gate insulating layer formed on the mask layer to a predetermined height, a mirror electrode formed on an inclined plane of the gate insulating layer, a gate electrode formed on the gate insulating layer and spaced apart from the mirror electrode, and a focus gate insulating layer and a focus gate electrode sequentially formed on the gate electrode. The field emission device is manufactured and employed in a display device in accordance with the present invention.