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:
Sep. 09, 2003
Filed:
Dec. 11, 1998
Roger W. Barton, Tofte, MN (US);
Kollengode S. Narayanan, Cupertino, CA (US);
Bob L. Mackey, San Jose, CA (US);
John M. Macaulay, Mountain View, CA (US);
George B. Hopple, Palo Alto, CA (US);
Donald R. Schropp, Jr., San Jose, CA (US);
Michael J. Nystrom, San Jose, CA (US);
Sudhakar Gopalakrishnan, San Jose, CA (US);
Shiyou Pei, San Jose, CA (US);
Xueping Xu, Stamford, CT (US);
Other;
Abstract
A flat-panel display contains a pair of plate structure ( and ) separated by a spacer ( ) having a rough face ( or ). When electrons strike the spacer, the roughness in the spacer's face causes the number of secondary electrons that escape the spacer to be reduced, thereby alleviating positive charge buildup on the spacer. As a result, the image produced by the display is improved. The spacer facial roughness can be achieved in various ways such as depressions ( , or ) or/and protuberances ( , and ). Various techniques are presented for manufacturing the display, including the rough-faced spacer.