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:
Nov. 28, 2000
Filed:
Dec. 14, 1998
Applicant:
Inventor:
Jules D Levine, Dallas, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313309 ; 313336 ; 313351 ; 313495 ;
Abstract
A field emission display device includes groupings of microtip emitters 14 which are energized by applying a negative potential to cathode 16 relative to the signal electrode 22, thereby inducing an electric field which draws streams of electrons 38 from the apexes of microtips 14. Electrons 38 emitted from microtips 14 impinge upon extraction plate 36 causing emission of a secondary stream of electrons 40 which are accelerated toward anode 40. Apparatus and methods for controlling these primary and secondary electron streams are described.