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:
Apr. 30, 2013
Filed:
Dec. 31, 2009
Applicants:
Qi Cai, Beijing, CN;
Tong-feng Gao, Beijing, CN;
Xing Zhang, Beijing, CN;
Liang Liu, Beijing, CN;
Shou-shan Fan, Beijing, CN;
Inventors:
Qi Cai, Beijing, CN;
Tong-Feng Gao, Beijing, CN;
Xing Zhang, Beijing, CN;
Liang Liu, Beijing, CN;
Shou-Shan Fan, Beijing, CN;
Assignees:
Tsinghua University, Beijing, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D 5/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for surface treating a cold cathode includes the following steps. A cold cathode is provided and the cold cathode includes a plurality of field emitters. A liquid glue is placed on a surface of the cold cathode. The liquid glue is cured to form solid glue on the surface of the cold cathode. The solid glue is removed to allow the plurality of field emitters to stand upright.