JPS57196471A - Polychromatic display cathode-ray tube device - Google Patents

Polychromatic display cathode-ray tube device

Info

Publication number
JPS57196471A
JPS57196471A JP8056481A JP8056481A JPS57196471A JP S57196471 A JPS57196471 A JP S57196471A JP 8056481 A JP8056481 A JP 8056481A JP 8056481 A JP8056481 A JP 8056481A JP S57196471 A JPS57196471 A JP S57196471A
Authority
JP
Japan
Prior art keywords
ray tube
cathode
green
luminescent
color
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
JP8056481A
Other languages
Japanese (ja)
Other versions
JPS6311675B2 (en
Inventor
Hiroo Kobayashi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8056481A priority Critical patent/JPS57196471A/en
Publication of JPS57196471A publication Critical patent/JPS57196471A/en
Publication of JPS6311675B2 publication Critical patent/JPS6311675B2/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
    • H01J31/20—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To improve the picture quality of a polychromatic display panel of a huge size and halve the optimum visible distance of captioned device, by dividing the luminescent surface of a cathode-ray tube into two parts, said surface being a picture element of the cathode-ray tube for a luminous source, and using a method of emitting two kinds of elementary colors by means of only one cathode-ray tube. CONSTITUTION:The captioned device is composed of each cathode-ray tube 31 and 32 respectively for indicating green and red/green and blue. Even if the mounting pitch of respective cathode-ray tube is left as it is, a visible distance can be halved, and red color and green color can be constructed closely to each other, accordingly a clear picture can be obtained even for a yellow color. In such a cathode-ray tube as shown in the figure, the internal luminescent surface of a face part at the end of a vacuum enclosure 1 is divided into two parts in order to install the luminescent surfaces 2a and 2b of two different kinds of luminous colors so that the cathode-ray tube may be so constructed as capable of radiating an electron beam over the nearly whole surface of respective surfaces 2a and 2b and said tube radiates non-focusing electron beams 10a and 10b from the position facing said surfaces 2a and 2b.
JP8056481A 1981-05-27 1981-05-27 Polychromatic display cathode-ray tube device Granted JPS57196471A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8056481A JPS57196471A (en) 1981-05-27 1981-05-27 Polychromatic display cathode-ray tube device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8056481A JPS57196471A (en) 1981-05-27 1981-05-27 Polychromatic display cathode-ray tube device

Publications (2)

Publication Number Publication Date
JPS57196471A true JPS57196471A (en) 1982-12-02
JPS6311675B2 JPS6311675B2 (en) 1988-03-15

Family

ID=13721827

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8056481A Granted JPS57196471A (en) 1981-05-27 1981-05-27 Polychromatic display cathode-ray tube device

Country Status (1)

Country Link
JP (1) JPS57196471A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57212764A (en) * 1981-06-22 1982-12-27 Mitsubishi Electric Corp Display device
JPS59103252A (en) * 1982-12-06 1984-06-14 Hitachi Ltd Cathode-ray tube for comprising color display device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018135A (en) * 1973-06-20 1975-02-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018135A (en) * 1973-06-20 1975-02-26

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57212764A (en) * 1981-06-22 1982-12-27 Mitsubishi Electric Corp Display device
JPS59103252A (en) * 1982-12-06 1984-06-14 Hitachi Ltd Cathode-ray tube for comprising color display device

Also Published As

Publication number Publication date
JPS6311675B2 (en) 1988-03-15

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