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:
Jan. 06, 2009
Filed:
Aug. 16, 2004
Yukihisa Takeuchi, Nishikamo-Gun, JP;
Tsutomu Nanataki, Toyoake, JP;
Iwao Ohwada, Nagoya, JP;
Takayoshi Akao, Kasugai, JP;
Yukihisa Takeuchi, Nishikamo-Gun, JP;
Tsutomu Nanataki, Toyoake, JP;
Iwao Ohwada, Nagoya, JP;
Takayoshi Akao, Kasugai, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A light source has a light emission section comprising a two-dimensional array of electron emitters and a drive circuit for applying a drive voltage to each of the electron emitters of the light emission section. The drive circuit applies the drive voltage between upper and lower electrodes of each of the electron emitters based on a control signal representative of turn-on/turn-off from an external source (a turn-on/turn-off switch or the like), for thereby controlling each of the electron emitters. Each of the electron emitters has a plate-like emitter, an upper electrode disposed on a face side of the emitter, and a lower electrode disposed on a reverse side of the emitter.