Title:
FLUORESCENT LIGHT EMITTING TUBE
Document Type and Number:
Japanese Patent JP3655281
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fluorescent display tube of which both ends of wire members like a filament or a wire shaped grid are fixed to a metal layer like Al thin film in a state of holding the wire members at a prescribed height, fixing and keeping the height of the wire members by one metal spacer to reduce a dead space.
SOLUTION: Both ends of the filament 23 and the Al wires 221, 222 are fixed to the Al film 211, 212 of a pair of cathode electrodes formed on a glass substrate 111 by ultrasonic bonding. The filament 23 is supported at a prescribed height by the Al wires 221, 222. The Al wires have two functions of a fixing member and a height holding member (spacer) for the filament 23. Since the spacer needs not be installed separately from the fixing member, the installation space for the spacer becomes unnecessary.
Inventors:
Sadahisa Yonezawa
Yukio Ogawa
Yasuhiro Nohara
Yukio Ogawa
Yasuhiro Nohara
Application Number:
JP2002368991A
Publication Date:
June 02, 2005
Filing Date:
December 19, 2002
Export Citation:
Assignee:
Futaba Electronics Co., Ltd.
International Classes:
H01J1/18; H01J1/62; H01J1/88; H01J9/14; H01J29/02; H01J29/04; H01J29/46; H01J31/15; H01J63/04; H01J63/06; (IPC1-7): H01J31/15; H01J29/04
Domestic Patent References:
| JP57145250A | ||||
| JP2002216678A | ||||
| JP2002260521A |
Attorney, Agent or Firm:
Masamitsu Ariga