Patent ID: 7105996
Filing Date: 2006-09-12
Classification: H01J

Abstract:
1. An electron gun for a color CRT, comprising: a triode unit for generating three electron beams and controlling and accelerating the generated electron beams; a main focusing lens unit that focuses the electron beams generated by the triode unit; a first electrostatic screen grid installed in the main focusing lens unit having three electron beam through holes linearly-arranged for passing the three electron beams and two of the holes are external holes, and the first grid having a first oval shaped hole that passes all three electron beams, the first oval shaped hole spaced a distance d a second electrostatic screen grid installed in the main focusing lens unit having three electron beam through holes linearly-arranged for passing the three electron beams and two of the holes are external holes, and the second grid having a second oval shaped hole that passes all three electron beams, the second oval shaped hole spaced a distance d wherein the first grid external holes have an external distance HL wherein HL