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US 7,071,605 B2Granted
Cathode structure for color cathode ray tube
AssigneeLG.Philips Displays Korea Co., Ltd.
InventorJae Sun Lee
Life of this patent
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Abstract
The present invention relates to a cathode ray structure for a cathode ray tube, and more particularly, to a cathode structure for a cathode ray tube capable of maximizing thermal efficiency and minimizing power consumption.
Claims22
A cathode structure for a cathode ray tube comprising:
- a sleeve with a built-in heater;
- a base metal covered with an electron-emissive material, the base metal being fixed to an upper end portion of the sleeve;
- and
- a holder for encompassing the sleeve, wherein H denotes a height of the cathode structure, C denotes a height of the base metal, D denotes a length of the holder, and H, C, and D satisfy the condition of −0.6 mm≦(H−(C+D))≦0.4 mm.
1 more element
A cathode structure for a cathode ray tube comprising:
- a sleeve with a built-in heater;
- a base metal covered with an electron-emissive material, the base metal being fixed to an upper end portion of the sleeve;
- and
- a holder for encompassing the sleeve, wherein a length from a lower end of the base metal to an upper end of the holder is in the range of −0.6 mm to 0.4 mm.
1 more element
A cathode structure for a cathode ray tube comprising:
- a sleeve with a built-in heater;
- a base metal covered with an electron-emissive material, the base metal being fixed to an upper end portion of the sleeve;
- a holder for encompassing the sleeve, wherein a height of the cathode structure, H, a height of the base metal, C, and a length of the holder, D, satisfy a relation of H≦C+D;
- and
- a strap for fixing the sleeve inside the holder.
2 more elements
Dependencies are inferred from the claim text.