Title:
ELECTRODE FOR COLD CATHODE TUBE, AND COLD CATHODE TUBE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2008/029507
Kind Code:
A1
Abstract:
An electrode (1) for a cold cathode tube comprises a cylindrical side wall part
(2), a bottom part (3) provided at one end of the side wall part, and an opening part
(4) provided at the other end of the side wall part. The side wall part and the bottom
part are formed of tungsten. This tungsten has a fibrous crystal structure extended
substantially perpendicular to the thickness-wise direction of the side wall
part or the bottom part. The electrode (1) satisfies the following relationship:
0.003 ≤ W/T ≤ 0.07 wherein T represents the thickness of the side
wall part or bottom part; and W represents the average width of the fibrous crystal
structure in its thickness-wise direction.
Inventors:
WAJATA TAKAYUKI (JP)
Application Number:
PCT/JP2007/000938
Publication Date:
March 13, 2008
Filing Date:
August 31, 2007
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA MATERIALS CO LTD (JP)
WAJATA TAKAYUKI (JP)
TOSHIBA MATERIALS CO LTD (JP)
WAJATA TAKAYUKI (JP)
International Classes:
H01J61/067; F21V8/00; G02F1/13357; F21Y103/00
Domestic Patent References:
| WO2005069349A1 | 2005-07-28 |
Foreign References:
| JP2005015917A | 2005-01-20 | |||
| JP2003242927A | 2003-08-29 |
Attorney, Agent or Firm:
SUYAMA, Saichi (1 Kandata-cho 2-chome, Chiyoda-k, Tokyo 46, JP)
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