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Title:
DISCHARGE ELECTRODE, DISCHARGE LAMP, AND METHOD AND APPARATUS FOR MANUFACTURING DISCHARGE ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2005/069349
Kind Code:
A1
Abstract:
The strength of bonding between a connection (lead) wire and a cup member of an electrode of a cold-cathode fluorescent tube to serve as a backlight of a liquid crystal panel is increased, and an excellent characteristic is imparted to the electrode of the cold-cathode fluorescent lamp. A discharge electrode of a cold-cathode fluorescent tube is made of one or more of high-melting point metals such as Mo, W, Ta, and Nb, or one or more of high-melting point metals to which added is a small amount of alloy material such as Ni or Cu having a function of improving the warm workability of the high-melting point metal and a function of regulating the growth of crystal grains, or a single crystal metal of these. The discharge electrode is integrally produced by warm or hot working such as warm or hot press, extrusion, or ironing of the cup section or of the lead wire section (rod) and the cup sections.

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Inventors:
MINAMOTO KOKI (JP)
FUJII KOJI (JP)
SAKAGUCHI SHIGEYA (JP)
NAKANO OSAMU (JP)
SATO KEN (JP)
Application Number:
PCT/JP2005/000398
Publication Date:
July 28, 2005
Filing Date:
January 14, 2005
Export Citation:
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Assignee:
NIPPON TUNGSTEN (JP)
MINAMOTO KOKI (JP)
FUJII KOJI (JP)
SAKAGUCHI SHIGEYA (JP)
NAKANO OSAMU (JP)
SATO KEN (JP)
International Classes:
H01J9/02; H01J61/067; (IPC1-7): H01J61/067; H01J9/02
Foreign References:
JPH09259762A1997-10-03
JPH0613032A1994-01-21
JP2002289136A2002-10-04
JPH065250A1994-01-14
JPH0137338C
JPH07153422A1995-06-16
JP2004146036A2004-05-20
JP2000343173A2000-12-12
JPS4841833B11973-12-08
JPS3929100B1
JPH0261867B21990-12-21
JP2003277872A2003-10-02
JPH09259818A1997-10-03
JPH065253A1994-01-14
JP2003059445A2003-02-28
Attorney, Agent or Firm:
Kohori, Susumu (1-1 Hakataekimae 1-chom, Hakata-ku Fukuoka-shi Fukuoka 11, JP)
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