Electrode for cold cathode discharge tube and electrode assembly for cold cathode discharge tube

A cold cathode and combination technology, which is applied to the main electrode of the discharge tube, the discharge tube, the cold cathode of the discharge tube, etc., can solve the problems of inability to achieve good welding and low metal oxidation temperature, and achieve good processing performance and good resistance to sputtering. Performance, long service life effect

Inactive Publication Date: 2007-06-20
SANKEN ELECTRIC CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In addition, due to the high melting point of niobium and its metal oxidation temperature is very low relative to the melting point, when the lead wire is welded to the electrode by means of laser welding, there is a disadvantage that oxidation occurs before reaching the melting point, and good welding cannot be achieved.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electrode for cold cathode discharge tube and electrode assembly for cold cathode discharge tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Embodiments of an electrode for a cold cathode discharge tube and an electrode assembly for a cold cathode discharge tube according to the present invention will be described in detail below with reference to FIGS. 1 and 2 .

[0016] An electrode assembly 14 for a cold cathode discharge tube according to an embodiment of the present invention shown in FIG. 1 includes a cup-shaped electrode 10 made of a nickel-niobium alloy and a lead wire 12 made of tungsten or the like combined with the electrode 10 by an assembly part 13 . The electrode 10 has a shape that closes an opening at one end of a cylindrical body, and a rod-shaped lead wire 12 is welded to the bottom surface of the electrode 10 by laser welding or the like.

[0017] Nickel-niobium alloy test pieces were cut from the forged material with various additions of niobium shown in Table 1 added to nickel, made into a shape of 5×10×10 mm, and each test piece was subjected to a sputtering test. Next, a grinding amoun...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
angle of incidenceaaaaaaaaaa
Vickers hardnessaaaaaaaaaa
Login to view more

Abstract

Provided is an electrode for a cold-cathode discharge tube and an electrode assembly for a cold-cathode discharge tube each having high resistance to sputtering, capable of extending the electrode service life, using an inexpensive material and is thereby capable of reducing the electrode cost, and having proper workability. This electrode for a cold-cathode discharge tube is formed of a Ni-Nb alloy, containing 6-32 wt.% of Nb and having a composition of unavoidable impurities and Ni in the remaining part. This electrode assembly for a cold-cathode discharge tube is composed of a cup-shaped electrode, formed of a Ni-Nb alloy containing 6-32 wt.% of Nb and having a composition of unavoidable impurities and Ni in the remaining part, and a lead fixed to the bottom surface of the electrode.

Description

technical field [0001] The present invention relates to an electrode for a cold cathode discharge tube, in particular to an electrode for a cold cathode discharge tube having sputtering resistance and a long service life, and an electrode assembly for a cold cathode discharge tube equipped with the electrode for a cold cathode discharge tube. Background technique [0002] Cold-cathode discharge tubes have been widely used as light sources for the backlight of liquid crystal displays for many years. The cold-cathode discharge tubes are equipped with thin glass tubes that seal rare gases including mercury vapor inside, and phosphors coated on the inner walls of the glass tubes. A membrane and a pair of electrodes fixed to both ends of the glass tube in a state facing each other in the tube axis direction of the glass tube. When the light is turned on, by applying a voltage between the electrodes of the cold-cathode discharge tube, electrons are released from the electrode (cat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H01J61/067H01J1/30H01J61/36H01J61/04
CPCH01J61/0675H01J61/0677H01J61/0737H01J2237/082H01J2893/0066
Inventor 坂口一哉岩佐繁鲸井正义
Owner SANKEN ELECTRIC CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap