| 摘要 |
PURPOSE: A structure of a triode part in an electron gun for cathode ray tube is provided to enhance resolution on a screen by improving a structure of the triode part having a cold cathode in order to control a path of an electron beam radiated from the cold cathode. CONSTITUTION: A triode part of an electron gun is formed with cold cathode(100), the first electrode(110), and the second electrode(120). Each position of the cold cathode(100), the first electrode(110), and the second electrode(120) and sizes of electron beam through-holes(110a,120a) of the first and the second electrodes(110,120) are improved in order to modify an electron beam(5a) of a con shape radiated from the cold cathode to the electron beam of a laminar flow shape. The high voltage is applied to the second electrode(120) in order to form a strong electric field.
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