GB1244307A - Glow-discharge display device - Google Patents

Glow-discharge display device

Info

Publication number
GB1244307A
GB1244307A GB63248/69A GB6324869A GB1244307A GB 1244307 A GB1244307 A GB 1244307A GB 63248/69 A GB63248/69 A GB 63248/69A GB 6324869 A GB6324869 A GB 6324869A GB 1244307 A GB1244307 A GB 1244307A
Authority
GB
United Kingdom
Prior art keywords
block
cathodes
glow
face
moulded
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
GB63248/69A
Inventor
Raymond Frederick Hall
Douglas Raymond Mainard
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.)
Philips Components Ltd
Original Assignee
Mullard Ltd
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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB63248/69A priority Critical patent/GB1244307A/en
Priority to DE19702063296 priority patent/DE2063296A1/de
Priority to CA101480A priority patent/CA928760A/en
Priority to NL7018830A priority patent/NL7018830A/xx
Priority to JP45119198A priority patent/JPS4828470B1/ja
Priority to US101548A priority patent/US3699377A/en
Priority to FR7047015A priority patent/FR2074401A5/fr
Publication of GB1244307A publication Critical patent/GB1244307A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Gas-Filled Discharge Tubes (AREA)

Abstract

1,244,307. Glow discharge lamps. MULLARD Ltd. 30 Dec., 1969, No. 63248/69. Heading H1D A recess 9 completely surrounding the open end of each cavity 7 and extending to the open end of each other cavity 7 is provided in the face of a block 6 of electrically insulating material forming part of a glow-discharge display device described in Specification 1,244,306 to prevent material sputtered from the cathodes 1 forming short circuits between the cavities. Cathodes 1 and leads 2 formed by photo-etching a sheet of Ni-Fe, Cr-Fe or Ni-Co-Fe are moulded into the block 6 in a mould which includes posts and grooves to form the cavities 7 and surrounding ridges 8 and recess 9. The posts and grooves may be formed by a rotary cutter (Fig. 1, not shown). An anode (not shown), made by photo-etching or expanding a metal plate to form a mesh, is welded to a frame 4 moulded in the block 6 which has a peripheral face 16 to which a window is sealed. After the moulding a peripheral strip 3 connecting and supporting the leads 2 is removed and the device is evacuated and filled with Ne or a Ne-A mixture at a pressure of 50-200 torr. through a tubulation communicating with an opening in the face of the block 6. In an alternative embodiment the cathodes in a row or column are connected together and anodes formed by conductive strips of tin oxide are deposited on the inner surface of the window to provide a cross-bar addressing system.
GB63248/69A 1969-12-30 1969-12-30 Glow-discharge display device Expired GB1244307A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB63248/69A GB1244307A (en) 1969-12-30 1969-12-30 Glow-discharge display device
DE19702063296 DE2063296A1 (en) 1969-12-30 1970-12-22
CA101480A CA928760A (en) 1969-12-30 1970-12-24 Glow-discharge display device
NL7018830A NL7018830A (en) 1969-12-30 1970-12-25
JP45119198A JPS4828470B1 (en) 1969-12-30 1970-12-26
US101548A US3699377A (en) 1969-12-30 1970-12-28 Glow discharge display device including an insulating envelope block with an array of cavities therein
FR7047015A FR2074401A5 (en) 1969-12-30 1970-12-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB63248/69A GB1244307A (en) 1969-12-30 1969-12-30 Glow-discharge display device

Publications (1)

Publication Number Publication Date
GB1244307A true GB1244307A (en) 1971-08-25

Family

ID=10488892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB63248/69A Expired GB1244307A (en) 1969-12-30 1969-12-30 Glow-discharge display device

Country Status (7)

Country Link
US (1) US3699377A (en)
JP (1) JPS4828470B1 (en)
CA (1) CA928760A (en)
DE (1) DE2063296A1 (en)
FR (1) FR2074401A5 (en)
GB (1) GB1244307A (en)
NL (1) NL7018830A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3896327A (en) * 1972-03-29 1975-07-22 Owens Illinois Inc Monolithic gas discharge display device
US4266224A (en) * 1979-02-26 1981-05-05 Beckman Instruments, Inc. High performance information display panel
JPS5883288A (en) * 1981-11-13 1983-05-19 Citizen Watch Co Ltd Calendar corrector for timepiece
US6642914B1 (en) * 2000-04-13 2003-11-04 Hewlett-Packard Development Company, L.P. Liquid crystal display (LCD) having improved isocontrast performance and method for producing same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858480A (en) * 1955-05-02 1958-10-28 Shadowitz Albert Self-luminous screen, television receiving system and display system
NL278331A (en) * 1961-06-06
US3334269A (en) * 1964-07-28 1967-08-01 Itt Character display panel having a plurality of glow discharge cavities including resistive ballast means exposed to the glow discharge therein
GB1139355A (en) * 1966-10-07 1969-01-08 Mullard Ltd Improvements in or relating to glow discharge cathodes
GB1153673A (en) * 1967-01-18 1969-05-29 Mullard Ltd Improvements in or relating to Electrical Discharge Display Devices
US3582979A (en) * 1969-07-07 1971-06-01 Burroughs Corp Gaseous discharge display device with interconnecting structure for the electrodes

Also Published As

Publication number Publication date
JPS4828470B1 (en) 1973-09-01
FR2074401A5 (en) 1971-10-01
CA928760A (en) 1973-06-19
NL7018830A (en) 1971-07-02
DE2063296A1 (en) 1972-06-15
US3699377A (en) 1972-10-17

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