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:
Mar. 04, 2003
Filed:
Sep. 12, 2000
David C. Chang, San Jose, CA (US);
Arthur J. Learn, Cupertino, CA (US);
Bob L. Mackey, San Jose, CA (US);
Paul M. Drumm, San Jose, CA (US);
David L. Morris, San Jose, CA (US);
Candescent Intellectual Property Services, Inc., San Jose, CA (US);
Abstract
A conductive focus waffle structure for focusing electrons emitted from a cathode portion of a flat panel display device. In one embodiment, the conductive focus waffle structure comprises a grid of material comprised of substantially orthogonally oriented rows and columns. The substantially orthogonally oriented rows and columns define openings therebetween having sufficient size to allow electrons emitted from a cathode portion of a flat panel display device to pass therethrough. The focus waffle grid further comprises a lower dielectric portion adapted to be coupled to the cathode portion of the flat panel display device and an upper conductive portion coupled to the lower dielectric portion, the upper conductive portion adapted to focus the electrons passing through the openings.