Directly heated cathode for cathode ray tube
AssigneeSamsung Display Devices Co., Ltd.
InventorsChang-seob Kim, Seok-bong Son, Bong-uk Jeong, Sang-kyun Kim, Sang-uk Shin
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Abstract
A directly heated cathode structure includes a porous pellet impregnated with a cathode material, filaments connected to the porous pellet, a support supporting the filament, and an insulation block supporting the support, wherein the filaments are supported on the porous pellet by at least one auxiliary member. The supporting structure is very strong and the quality and productivity can be greatly improved by improvement of the filament welding process using the auxiliary members.
Claims24
A directly heated cathode structure comprising:
- a porous pellet impregnated with a cathode material;
- a filament supporting said porous pellet;
- and
- an auxiliary member fixing said filament to said porous pellet, said filament being disposed between said auxiliary member and said porous pellet.
A directly heated cathode structure comprising:
- a porous pellet impregnated with a cathode material;
- a filament connected to said porous pellet;
- a support supporting said filament;
- an insulation block supporting said support;
- and
- an auxiliary member fixing said filament to said porous pellet and supporting said filament wherein said filament is disposed between said porous pellet and said auxiliary member.
Dependencies are inferred from the claim text.