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:
Sep. 04, 2007

Filed:

Oct. 06, 2004
Applicants:

Bong-wook Jung, Suwon-si, KR;

Deog-ho Kim, Suwon-si, KR;

Kwang-jin Yun, Suwon-si, KR;

Se-ja-chul Hwang, Suwon-si, KR;

Inventors:

Bong-Wook Jung, Suwon-si, KR;

Deog-Ho Kim, Suwon-si, KR;

Kwang-Jin Yun, Suwon-si, KR;

Se-Ja-Chul Hwang, Suwon-si, KR;

Assignee:

Samsung SDI Co., Ltd., Suwon-si, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 29/46 (2006.01); H01J 29/50 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electron gun assembly for a cathode ray tube includes a cathode for emitting an electron beam, and a plurality of electrodes mounted in a row with predetermined gaps therebetween. The electrodes include a focus electrode for receiving a focus voltage, and an anode electrode surrounding part of the focus electrode for receiving an anode voltage. A support is used to fix the electrodes in an aligned configuration, and a first auxiliary support secures the focus electrode to the support. The focus electrode includes an intermediate aperture section, a small aperture section, and a large aperture section, while the anode electrode includes a large aperture section and a small aperture section. Two second auxiliary supports secure the anode electrode to the support.


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