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:
Apr. 30, 1999
Donald R. Schropp, Jr., San Jose, CA (US);
John E. Field, Dorrington, CA (US);
James C. Dunphy, San Jose, CA (US);
Lawrence S. Pan, Los Gatos, CA (US);
David L. Morris, San Jose, CA (US);
Ronald S. Besser, Sunnyvale, CA (US);
Christopher J. Spindt, Menlo Park, CA (US);
Other;
Abstract
The intensity at which electrons emitted by a first plate structure ( ) in a flat-panel display strike a second plate structure ( ) for causing it to emit light is controlled so as to reduce image degradation that could otherwise arise from undesired electron-trajectory changes caused by effects such as the presence of a spacer system ( ) between the plate structures. An electron-emissive region ( ) in the first plate structure typically contains multiple laterally separated electron-emissive portions ( and ) for selectively emitting electrons. An electron-focusing system in the first plate structure has corresponding focus openings ( P and P ) through which electrons emitted by the electron-emissive portions respectively pass. Upon being struck by the so-emitted electrons, a light-emissive region ( ) in the second plate structure emits light to produce at least part of a dot of the display's image.