Electron gun in colour cathode-ray tube


Application Number: 00109149
Application Date: 2000.06.12
Publication Number: 1277455
Publication Date: 2000.12.20
Priority Information: 1999/6/11 KR 21821/99
International: H01J29/50
Applicant(s) Name: LG Electronics Inc.
Address:
Inventor(s) Name: Kim Duigyu;Kim Hyunchul
Patent Agency Code: 11219
Patent Agent: yu mang
Abstract An electron gun for a color CRT includes a triode and main lens forming electrodes, also includes first dynamic quadrupole lens forming electrodes for providing a vertical focusing action and a horizontal focusing action to be applied to the R, G, B beams, the two focusing actions are different, and second dynamic quadrupole lens forming electrodes for providing horizontal/vertical focusing actions to be applied to the R, B beams, and horizontal/vertical focusing actions to be applied to the G beam, the two focusing actions are different. The first dynamic quadrupole lens forming electrodes and the second dynamic quadrupole lens forming electrodes being are arranged in order starting from the main lens forming electrodes toward the triode.