GB1310643A – Electron tubes for character display
– Google Patents
GB1310643A – Electron tubes for character display
– Google Patents
Electron tubes for character display
Info
Publication number
GB1310643A
GB1310643A
GB2201971A
GB2201971A
GB1310643A
GB 1310643 A
GB1310643 A
GB 1310643A
GB 2201971 A
GB2201971 A
GB 2201971A
GB 2201971 A
GB2201971 A
GB 2201971A
GB 1310643 A
GB1310643 A
GB 1310643A
Authority
GB
United Kingdom
Prior art keywords
electrodes
barrier
indicating units
segmented electrodes
electrode
Prior art date
1970-02-19
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
GB2201971A
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.)
Sony Corp
Original Assignee
Sony 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.)
1970-02-19
Filing date
1971-04-19
Publication date
1973-03-21
1971-04-19
Application filed by Sony Corp
filed
Critical
Sony Corp
1973-03-21
Publication of GB1310643A
publication
Critical
patent/GB1310643A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
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
G—PHYSICS
G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
G09F13/00—Illuminated signs; Luminous advertising
G09F13/26—Signs formed by electric discharge tubes
Abstract
1310643 Character display tubes SONY CORP 19 April 1971 [19 Feb 1970] 22019/71 Heading H1D An electron tube for character display comprises a substrate, a plurality of indicating units A 1 , A 2 formed thereon, each unit having a plurality of first segmented electrodes E 1 to E 8 arranged in substantially identical patterns, a plurality of second electrodes P 1 , P 2 , P 3 formed on the substrate, at least one barrier electrode C between each pair of adjacent indicating units and a transparent envelope enclosing all the electrodes. The tube may be of the glow discharge type or the segmented electrodes may be coated with luminescent material and irradiated by electrons from a cathode H. Corresponding segmented electrodes of the indicating units may be interconnected within the envelope and the indicating units may be operated sequentially in a time divisional manner. Instead of one barrier electrode which surrounds all the indicating units a separate electrode may be provided between each adjacent pair of units in which case a further second electrode may be provided surrounding each set of segmented electrodes, Figs. 3 and 7 (not shown). In the case of a glow discharge device the barrier electrodes are kept at a potential such that interference between adjacent indicating units does not arise and that the barrier electrodes themselves do not give rise to a discharge. In the luminescent type tubes the barrier electrodes are held at substantially the same positive potential as those segmented electrodes which are to be displayed. In a preferred construction the segmented electrodes and the second electrodes are printed on the substrate together with their interconnecting conductors 3, 4, a layer of dielectric, e.g. glass frit, is deposited thereon and the barrier electrodes then provided on the insulating layer.
GB2201971A
1970-02-19
1971-04-19
Electron tubes for character display
Expired
GB1310643A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP1657570
1970-02-19
Publications (1)
Publication Number
Publication Date
GB1310643A
true
GB1310643A
(en)
1973-03-21
Family
ID=11920072
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2201971A
Expired
GB1310643A
(en)
1970-02-19
1971-04-19
Electron tubes for character display
Country Status (4)
Country
Link
DE
(1)
DE2107604B2
(en)
FR
(1)
FR2078854A5
(en)
GB
(1)
GB1310643A
(en)
NL
(1)
NL154618B
(en)
Families Citing this family (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4047072A
(en)
*
1975-03-28
1977-09-06
Futaba Denshi Kogyo Kabushiki Kaisha
Multi-digit fluorescent display tube
JPS5271168A
(en)
*
1975-12-11
1977-06-14
Futaba Denshi Kogyo Kk
Multiidigit fluorescent display tube
US4156239A
(en)
*
1976-07-16
1979-05-22
Canon Kabushiki Kaisha
Display device
JPS5416173A
(en)
*
1977-07-07
1979-02-06
Futaba Denshi Kogyo Kk
Fluorescent display tube
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
NL6508596A
(en)
*
1965-07-03
1967-01-04
NL6716506A
(en)
*
1967-12-05
1969-06-09
1971
1971-02-17
DE
DE19712107604
patent/DE2107604B2/en
not_active
Ceased
1971-02-18
NL
NL7102189A
patent/NL154618B/en
not_active
IP Right Cessation
1971-02-19
FR
FR7105798A
patent/FR2078854A5/fr
not_active
Expired
1971-04-19
GB
GB2201971A
patent/GB1310643A/en
not_active
Expired
Also Published As
Publication number
Publication date
NL154618B
(en)
1977-09-15
DE2107604A1
(en)
1971-08-26
FR2078854A5
(en)
1971-11-05
NL7102189A
(en)
1971-08-23
DE2107604B2
(en)
1978-11-02
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Legal Events
Date
Code
Title
Description
1973-08-01
PS
Patent sealed
1991-05-22
PE20
Patent expired after termination of 20 years
