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. 04, 2006
Filed:
Feb. 26, 2004
Tomoki Nakamura, Chiba, JP;
Noriharu Matsudate, Kujukuri, JP;
Tomoki Nakamura, Chiba, JP;
Noriharu Matsudate, Kujukuri, JP;
Hitachi Displays, Ltd., Mobara, JP;
Abstract
In an image display device, assuming the distance between electron sources and control electrodes is Lkg, the distance between the control electrodes and acceleration electrodes is L, the thickness of opening holes formed in the control electrodes is Tgl and the short diameter of the opening holes formed in the control electrodes is FGI, the acceleration electrodes satisfy the relationship (Lkg+Tgl+L/2)/FGI≧0.25; assuming the thickness of the opening holes formed in the acceleration electrodes is Tgand the short diameter of the opening holes formed in the acceleration electrodes is FG, the acceleration electrodes satisfy the relationship Tgmin≦Tg≦Tgmax and the relationship Tgmin=2.98FG−0.04; assuming FG<0.109, the acceleration electrodes satisfy the relationship Tgmax=0.02/(0.115−FG)−0.06; and assuming FG≧0.109, the acceleration electrodes satisfy the relationship Tgmax=0.03/(FG−0.1)+0.045. Due to such a constitution, light emission control can be easily performed and self-alignment of the electron sources and the control electrodes can be realized.