GB1179544A - Gas-Discharge Display Tube - Google Patents

Gas-Discharge Display Tube

Info

Publication number
GB1179544A
GB1179544A GB0305/69A GB130569A GB1179544A GB 1179544 A GB1179544 A GB 1179544A GB 0305/69 A GB0305/69 A GB 0305/69A GB 130569 A GB130569 A GB 130569A GB 1179544 A GB1179544 A GB 1179544A
Authority
GB
United Kingdom
Prior art keywords
characters
frames
group
display tube
eyelets
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
GB0305/69A
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 Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1179544A publication Critical patent/GB1179544A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0069—Tubes for displaying characters

Landscapes

  • Gas-Filled Discharge Tubes (AREA)
  • Discharge Lamp (AREA)

Abstract

1,179,544. Glow discharge lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 9 Jan., 1969 [12 Jan., 1968], No. 1305/69. Heading H1D. A cold-cathode gas-discharge display tube for simultaneously displaying two independently switchable characters from two arbitrary groups includes a plurality of mutually insulated cathodes each comprising a frame 1 enclosing a character 3 from one group and. a space through which characters from the other group can be seen. The frames 1 are preferably rectangular as shown, but may be circular, with characters from one group mounted in the upper half of a frame and characters from the other group mounted in the lower half. Alternatively, characters from the two groups may be displayed side by side. The frames have eyelets 2 and are stacked together with intermediate insulating frames on support pins 15 and surrounded by an anode 16 having a wire gauze portion 17. In an alternative arrangement (Figs. 6 and 7, not shown) the eyelets 2 are omitted, the frames and insulators being stacked in a U-shaped anode and secured therein by a cover with a gauze-covered aperture.
GB0305/69A 1968-01-12 1969-01-09 Gas-Discharge Display Tube Expired GB1179544A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6800473A NL6800473A (en) 1968-01-12 1968-01-12

Publications (1)

Publication Number Publication Date
GB1179544A true GB1179544A (en) 1970-01-28

Family

ID=19802495

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0305/69A Expired GB1179544A (en) 1968-01-12 1969-01-09 Gas-Discharge Display Tube

Country Status (8)

Country Link
US (1) US3581138A (en)
AT (1) AT284975B (en)
BE (1) BE726770A (en)
CH (1) CH489113A (en)
DE (1) DE1816021A1 (en)
FR (1) FR1599425A (en)
GB (1) GB1179544A (en)
NL (1) NL6800473A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5167091A (en) * 1974-12-09 1976-06-10 Suwa Seikosha Kk

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA779997A (en) * 1968-03-05 P. Stenning George Cold cathode gas discharge tubes
FR1352201A (en) * 1962-12-21 1964-02-14 Csf Multicathode Display Tube Improvements

Also Published As

Publication number Publication date
NL6800473A (en) 1969-07-15
CH489113A (en) 1970-04-15
FR1599425A (en) 1970-07-15
DE1816021A1 (en) 1969-07-31
AT284975B (en) 1970-10-12
BE726770A (en) 1969-07-10
US3581138A (en) 1971-05-25

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