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:
Jan. 02, 2007
Filed:
Apr. 26, 2002
Ronald L. Hansen, San Jose, CA (US);
James C. Dunphy, San Jose, CA (US);
Christopher J. Spindt, Menlo Park, CA (US);
James M. Cleeves, Redwood City, CA (US);
Jerome M. Truppa, San Jose, CA (US);
Gregory M. Fink, San Jose, CA (US);
Yukinobu Iguchi, Mizunami, JP;
Ronald L. Hansen, San Jose, CA (US);
James C. Dunphy, San Jose, CA (US);
Christopher J. Spindt, Menlo Park, CA (US);
James M. Cleeves, Redwood City, CA (US);
Jerome M. Truppa, San Jose, CA (US);
Gregory M. Fink, San Jose, CA (US);
Yukinobu Iguchi, Mizunami, JP;
Candescent Technologies Corporation, San Jose, CA (US);
Sony Corporation, Tokyo, JP;
Abstract
A field emission display (FED) having a correction system with a correction coefficient derived from emission current is presented. Within one embodiment in accordance with the present invention, a field emission display has an anode at the faceplate and a focus structure. The anode potential is held at ground while the focus structure potential is held between, but is not limited to, 40 and 50 volts. The current flowing to the focus structure is measured and used as the basis for the correction coefficient for the field emission display.