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:
Jul. 02, 2002
Filed:
Mar. 22, 2001
Neil Anthony Fox, Cheltenham, GB;
Wang Nang Wang, Lympley Stoke, GB;
Smiths Group PLC, London, GB;
Abstract
Parallel cathode electrodes extend across the base plate of a display. Each electrode has teeth projecting from both sides, the teeth of adjacent electrodes being closely spaced from one another by a gap that is bridged by a dot of an electron emitter material. A glass screen spaced by a vacuum gap above the base plate carries transparent anode stripes extending transversely of the cathode electrodes and a fluorescent layer of colored phosphors on the anode stripes. A voltage applied between adjacent cathode electrodes and gates conduction via each electron emitter dot. A voltage applied to an anode stripe causes a part of the current from the emitter directly below the stripe to be directed towards the anode, thereby illuminating the phosphor pixel above the emitter.