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:
Feb. 25, 2003
Filed:
Jun. 01, 1999
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/50 ; H01J 6/306 ; H01J 2/946 ;
U.S. Cl.
CPC ...
H01J 1/50 ; H01J 6/306 ; H01J 2/946 ;
Abstract
A flat panel display device comprises a cathode on a first substrate for emitting electrons, a magnetic plate including first region focusing electrons emitted from the cathode to display an image and second region for applying the uniform magnetic field into the holes in the first region, and a fluorescent layer on the second substrate, on which the electrons outputted from the holes are impacted. In the second region, there are holes having the same shape and pitch as the first region.