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US 2009/0167143 A1Published application
Cathode ray tube including electron gun
AssigneeLG. Philips Displays Korea Co., Ltd.
InventorSungho Jo
Life of this patent
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Abstract
A cathode ray tube including an electron gun is disclosed. The cathode ray tube includes a panel, a funnel fused to a rear end of the panel, an electron gun which is inserted into the funnel and includes a focus electrode for focusing electron beams emitted from a cathode, and a field controller positioned inside or on a surface of the focus electrode. The field controller surrounds a portion or the entire of an outside electron beam among the aligned electron beams.
Claims11
A cathode ray tube comprising:
- a panel;
- a funnel fused to a rear end of the panel;
- an electron gun inserted into the funnel, the electron gun including a focus electrode for focusing electron beams emitted from a cathode;
- and
- a field controller positioned inside or on a surface of the focus electrode, the field controller surrounding a portion or the entire of an outside electron beam among the aligned electron beams.
2 more elements
An electron gun comprising:
- a control electrode that controls electron beams emitted from a cathode;
- an acceleration electrode that accelerates the electron beams;
- and
- a focus electrode that focuses the electron beams, a field controller that surrounds a portion or the entire of an outside electron beam among the aligned electron beams being positioned inside or on a surface of the focus electrode.
1 more element
Dependencies are inferred from the claim text.