US 7,551,242 B2
Sintered electrode for cold cathode tube, cold cathode tube comprising this sintered electrode for cold cathode tube, and liquid crystal display device
Hitoshi Aoyama, Yokohama (Japan)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan)
Appl. No. 10/570,495
PCT Filed May 02, 2005, PCT No. PCT/JP2005/008306
§ 371(c)(1), (2), (4) Date Mar. 03, 2006,
PCT Pub. No. WO2005/109469, PCT Pub. Date Nov. 17, 2005.
Claims priority of application No. 2004-139559 (JP), filed on May 10, 2004.
Prior Publication US 2008/0192176 A1, Aug. 14, 2008
Int. Cl. H05B 37/02 (2006.01); G02F 1/13357 (2006.01)
U.S. Cl. 349—65  [428/586] 15 Claims
OG exemplary drawing
 
1. A sintered electrode for a cold cathode tube, comprising a cylindrical side wall part, a bottom part provided at one end of the side wall part, and an opening provided at another end of the side wall part, characterized in that the surface roughness (Sm) of the inner surface of the electrode is not more than 100 μm.