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.

Date of Patent:
Dec. 30, 2014

Filed:

Dec. 01, 2011
Applicants:

Chih-hong Hwang, New Taipei, TW;

Chun-lin Chang, Jhubei, TW;

Nai-han Cheng, Hsinchu County, TW;

Chi-ming Yang, Hsinchu, TW;

Chin-hsiang Lin, Hsin-Chu, TW;

Inventors:

Chih-Hong Hwang, New Taipei, TW;

Chun-Lin Chang, Jhubei, TW;

Nai-Han Cheng, Hsinchu County, TW;

Chi-Ming Yang, Hsinchu, TW;

Chin-Hsiang Lin, Hsin-Chu, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 7/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present disclosure provides for various advantageous methods and apparatus of controlling electron emission. One of the broader forms of the present disclosure involves an electron emission element, comprising an electron emitter including an electron emission region disposed between a gate electrode and a cathode electrode. An anode is disposed above the electron emission region, and a voltage set is disposed above the anode. A first voltage applied between the gate electrode and the cathode electrode controls a quantity of electrons generated from the electron emission region. A second voltage applied to the anode extracts generated electrons. A third voltage applied to the voltage set controls a direction of electrons extracted through the anode.


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