JPS579039A - Multipole electron tube for display - Google Patents

Multipole electron tube for display

Info

Publication number
JPS579039A
JPS579039A JP8187480A JP8187480A JPS579039A JP S579039 A JPS579039 A JP S579039A JP 8187480 A JP8187480 A JP 8187480A JP 8187480 A JP8187480 A JP 8187480A JP S579039 A JPS579039 A JP S579039A
Authority
JP
Japan
Prior art keywords
display
anode
long time
fluorescent material
time display
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.)
Granted
Application number
JP8187480A
Other languages
Japanese (ja)
Other versions
JPS5760744B2 (en
Inventor
Ikuo Taishiyaku
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.)
Narumi China Corp
Original Assignee
Narumi China 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 Narumi China Corp filed Critical Narumi China Corp
Priority to JP8187480A priority Critical patent/JPS579039A/en
Publication of JPS579039A publication Critical patent/JPS579039A/en
Publication of JPS5760744B2 publication Critical patent/JPS5760744B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/15—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen with ray or beam selectively directed to luminescent anode segments

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

PURPOSE:To suppress the deterioration of the brightness of a fluorescent material due to long time display, by providing an electrode for long time display on which the potential lower than that of the display anode is applied then adhering the fluorescent material to it. CONSTITUTION:The grid 6 except the electrodes 6a, 6b for long time display is controlled between -10V and +2V, for example, while +50V is applied on the display anode 5 during the lighting. The display anode to be lighted is specified by said grid 6 then the electron from the cathode 7 is radiated to it to emit the light from said fluorescent member thus to display the desired number or figure. While the potential lower than the lighting potential of the display anode 5 or same potential with that of the grid 6, for example, is applied on the long time display electrodes 6a, 6b and simultaneously or separately from the display anode 5, it is continuously displayed as the line for partitioning the area displayed by said anode 5. Consequently the deterioration of the brightness of the fluorescent material due to the long time display can be suppressed thereby the service life of the fluorescent material can be made approximately same with that of the display anode.
JP8187480A 1980-06-17 1980-06-17 Multipole electron tube for display Granted JPS579039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8187480A JPS579039A (en) 1980-06-17 1980-06-17 Multipole electron tube for display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8187480A JPS579039A (en) 1980-06-17 1980-06-17 Multipole electron tube for display

Publications (2)

Publication Number Publication Date
JPS579039A true JPS579039A (en) 1982-01-18
JPS5760744B2 JPS5760744B2 (en) 1982-12-21

Family

ID=13758599

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8187480A Granted JPS579039A (en) 1980-06-17 1980-06-17 Multipole electron tube for display

Country Status (1)

Country Link
JP (1) JPS579039A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5767269A (en) * 1980-10-14 1982-04-23 Nec Corp Fluoresceny displat tube

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052508A (en) * 1983-09-02 1985-03-25 Toshiba Ceramics Co Ltd Composite type porous brick
JPH0343221Y2 (en) * 1986-11-14 1991-09-10
JPH0391169U (en) * 1989-12-26 1991-09-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5767269A (en) * 1980-10-14 1982-04-23 Nec Corp Fluoresceny displat tube

Also Published As

Publication number Publication date
JPS5760744B2 (en) 1982-12-21

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