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:
May. 11, 2010
Filed:
May. 19, 2006
Bing-chu Du, Beijing, CN;
Jie Tang, Beijing, CN;
Cai-lin Guo, Beijing, CN;
Liang Liu, Beijing, CN;
Zhao-fu HU, Beijing, CN;
Pi-jin Chen, Beijing, CN;
Shou-shan Fan, Beijing, CN;
Bing-chu Du, Beijing, CN;
Jie Tang, Beijing, CN;
Cai-lin Guo, Beijing, CN;
Liang Liu, Beijing, CN;
Zhao-fu Hu, Beijing, CN;
Pi-jin Chen, Beijing, CN;
Shou-shan Fan, Beijing, CN;
Tsinghua University, Beijing, CN;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A field emission device (), in accordance with a preferred embodiment, includes a cathode electrode (), a gate electrode (), a separator (), and a number of emissive units () composed of an emissive material. The separator includes an insulating portion () and a number of conductive portions (). The insulating portion of the separator is configured between the cathode electrode and the gate electrode for insulating the cathode electrode from the gate electrode. The emissive units are configured on the separator at positions proximate to two sides of the gate electrode. The emissive units are in connection with the cathode electrode via the conductive portions respectively. The emissive units are distributed on the separator adjacent to two sides of the gate electrode, which promotes an ability of emitting electrons from the emissive material and the emitted electrons to be guided by the gate electrode toward a smaller spot they bombard.