GB1466534A - Cold cathode diplay device and method of making such devices - Google Patents

Cold cathode diplay device and method of making such devices

Info

Publication number
GB1466534A
GB1466534A GB553075A GB553075A GB1466534A GB 1466534 A GB1466534 A GB 1466534A GB 553075 A GB553075 A GB 553075A GB 553075 A GB553075 A GB 553075A GB 1466534 A GB1466534 A GB 1466534A
Authority
GB
United Kingdom
Prior art keywords
cold cathode
firing
minutes
display device
heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB553075A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unisys Corp
Original Assignee
Burroughs Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Burroughs Corp filed Critical Burroughs Corp
Publication of GB1466534A publication Critical patent/GB1466534A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/30—Cold cathodes, e.g. field-emissive cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
    • H01J17/491—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with electrodes arranged side by side and substantially in the same plane, e.g. for displaying alphanumeric characters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/022—Manufacture of electrodes or electrode systems of cold cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Abstract

1466534 Cathode display device BURROUGHS CORP 10 Feb 1975 [8 March 1974] 5530/75 Heading C1M A cold cathode display device is made by screening on to a prepared base-plate (e.g. of glass or ceramic) a mixture, in a vaporizable vehicle, of a metal powder (e.g. Ni, Mo or stainless steel) and a resistive glaze material (defined as an electrically conductive oxide dispersed in a glass frit with optional additions of metallic modifiers), heating to drive off the organic solvents and firing to bond the material to the baseplate. The oxide in the glaze material may be of Nu, Sn, Cd or Tl and the vehicle may be ethyl cellulose in butyl carbitol acetate. The firing is preferably for 5-15 minutes at 500‹-600‹ C. in nitrogen and it is possible to enhance the glow spreading ability of the cathode by post-heating it for 10-60 minutes at 400‹-600‹ C. in air. The metal powder may be 2-30Á in size.
GB553075A 1974-03-08 1975-02-10 Cold cathode diplay device and method of making such devices Expired GB1466534A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44923074A 1974-03-08 1974-03-08

Publications (1)

Publication Number Publication Date
GB1466534A true GB1466534A (en) 1977-03-09

Family

ID=23783407

Family Applications (1)

Application Number Title Priority Date Filing Date
GB553075A Expired GB1466534A (en) 1974-03-08 1975-02-10 Cold cathode diplay device and method of making such devices

Country Status (3)

Country Link
JP (1) JPS50141269A (en)
GB (1) GB1466534A (en)
NL (1) NL7502140A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0681312A1 (en) * 1993-11-24 1995-11-08 TDK Corporation Cold-cathode electron source element and method for producing the same
US6097139A (en) * 1995-08-04 2000-08-01 Printable Field Emitters Limited Field electron emission materials and devices

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0681312A1 (en) * 1993-11-24 1995-11-08 TDK Corporation Cold-cathode electron source element and method for producing the same
EP0681312A4 (en) * 1993-11-24 1996-11-06 Tdk Corp Cold-cathode electron source element and method for producing the same.
US5760536A (en) * 1993-11-24 1998-06-02 Tdk Corporation Cold cathode electron source element with conductive particles embedded in a base
US5860844A (en) * 1993-11-24 1999-01-19 Tdk Corporation Cold cathode electron source element and method for making
US6097139A (en) * 1995-08-04 2000-08-01 Printable Field Emitters Limited Field electron emission materials and devices

Also Published As

Publication number Publication date
NL7502140A (en) 1975-09-10
JPS50141269A (en) 1975-11-13

Similar Documents

Publication Publication Date Title
GB1511601A (en) Electrical resistor composition for and method of making same
ES446970A1 (en) Volatilizable frit composition forming oxidation-inhibiting vapors
GB1234157A (en)
SE7512454L (en) COMPOSITION FOR MANUFACTURE OF LEADERSHIP SAMPLES
AU3938972A (en) Thermomagnetic soldering tip assembly and method
GB1466534A (en) Cold cathode diplay device and method of making such devices
GB1262420A (en) Improvements in or relating to voltage overload protectors
GB1345549A (en) Resistors
GB1282023A (en) Electrical resistor material
GB397107A (en) Improvements in and relating to electric discharge devices
GB900583A (en) Luminescent screens and methods of making same
GB923890A (en) Improvements in electric low-pressure mercury vapour discharge lamps with high loading, more particularly fluorescent lamps
GB1240068A (en) Method of making gas discharge display devices
JPS5658308A (en) Manufacture for sticking type oscillator
JPH03171525A (en) Manufacture of phosphor display tube
GB1289616A (en)
JPS5417660A (en) Manufacture of electron emission hot-cathode
JPS5436594A (en) Presarvation of voltage non-linear resistance element consisted of zinc oxide
JPS5231400A (en) Thermistor composition
JPS5272493A (en) Electrode material as resistor having non-linear voltage characteristi c
GB830225A (en) Method of manufacturing electro-luminescent lamps
JPS52154096A (en) Preparing paste for glazed resistor
GB998029A (en) Improvements in or relating to piezo-electric devices
JPS5226493A (en) Electrode material made of zinc oxide and others for non-linear resist or
JPS52109861A (en) Manufacture for fluorescent display tube

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee