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:
Aug. 11, 2009
Filed:
Mar. 25, 2005
Peng Liu, Beijing, CN;
Yang Wei, Beijing, CN;
Lei-mei Sheng, Beijing, CN;
Liang Liu, Beijing, CN;
Shou-shan Fan, Beijing, CN;
Zhao-fu HU, Beijing, CN;
Peng Liu, Beijing, CN;
Yang Wei, Beijing, CN;
Lei-Mei Sheng, Beijing, CN;
Liang Liu, Beijing, CN;
Shou-Shan Fan, Beijing, CN;
Zhao-Fu Hu, Beijing, CN;
Tsinghua University, Beijing, CN;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A preferred method for making a carbon nanotube-based field emission cathode device in accordance with the invention includes the following steps: preparing a solution having a solvent and a predetermined quantity of carbon nanotubes dispersed therein; providing a base with an electrode () formed thereon; forming a layer of conductive grease () on the base; distributing the solution on the layer of conductive grease, and forming a carbon nanotube layer () at least attached on the surface of the conductive grease after the solvent evaporates; and scratching the layer of conductive grease, in order to raise first ends of at least some of the carbon nanotubes from the conductive grease and thereby attain an effective carbon nanotube field emission cathode.