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:
Sep. 11, 2007
Filed:
Aug. 24, 2005
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;
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;
Samsung SDI Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
An electron gun assembly for a cathode ray tube where the distortion of the electron beam that ordinarily occurs at the periphery of the screen is reduced. The electron gun assembly includes a cathode for emitting electrons, and a plurality of grid electrodes having a control electrode facing the cathode. The grid electrodes sequentially follow the cathode to focus and accelerate the electrons emitted from the cathode. The control electrode has a beam passage hole with a horizontal length H, and a vertical length V being larger than the horizontal length H. The ratio of the vertical to horizontal lengths satisfies the following condition: 1.03≦V/H≦1.63.