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. 14, 2006
Filed:
Nov. 27, 2002
Benjamin Edward Russ, San Diego, CA (US);
Jack Barger, San Diego, CA (US);
Benjamin Edward Russ, San Diego, CA (US);
Jack Barger, San Diego, CA (US);
Sony Corporation, Tokyo, JP;
Sony Electronics Inc., Park Ridge, NJ (US);
Abstract
Field emission displays (FEDs) having improved structure are provided. In one implementation, a field emission display comprises a faceplate, a backplate, a volume formed therebetween and maintained as a vacuum, a cathode and an anode. A thickness of the faceplate and the backplate are sufficient to prevent deformation of the faceplate and the backplate across their dimensions due to the vacuum such that spacers are not needed to maintain a uniform separation between the anode and the cathode. In an alternative implementation, the volume includes a first portion between the cathode and the anode and a second portion between the cathode and the backplate, the second portion continuous with the first portion. The second portion provides an improved volume to surface area ratio, which improves vacuum quality and which allows for improved gettering, which again allows for improved vacuum quality and longer display lifetime.