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:
Oct. 04, 2011
Filed:
Apr. 30, 2010
Hai-yan Hao, Beijing, CN;
Peng Liu, Beijing, CN;
Jie Tang, Beijing, CN;
Yang Wei, Beijing, CN;
Liang Liu, Beijing, CN;
Kai-li Jiang, Beijing, CN;
Shou-shan Fan, Beijing, CN;
Hai-Yan Hao, Beijing, CN;
Peng Liu, Beijing, CN;
Jie Tang, Beijing, CN;
Yang Wei, Beijing, CN;
Liang Liu, Beijing, CN;
Kai-Li Jiang, Beijing, CN;
Shou-Shan Fan, Beijing, CN;
Tsinghua University, Beijing, CN;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, New Taipei, TW;
Abstract
A field emission cathode device includes an insulative substrate, a plurality of cathode electrodes, and a plurality of electron emission units. The insulative substrate has a top surface and a bottom surface. The insulative substrate defines a plurality of openings. The cathode electrodes are located on the bottom surface. Each of the electron emission units has a first portion secured between the insulative substrate and one corresponding cathode electrode and a second portion received in one corresponding opening.