JPS57103240A - Color picture tube - Google Patents

Color picture tube

Info

Publication number
JPS57103240A
JPS57103240A JP17869780A JP17869780A JPS57103240A JP S57103240 A JPS57103240 A JP S57103240A JP 17869780 A JP17869780 A JP 17869780A JP 17869780 A JP17869780 A JP 17869780A JP S57103240 A JPS57103240 A JP S57103240A
Authority
JP
Japan
Prior art keywords
phosphor
activated
zinc sulfide
self
silver
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.)
Pending
Application number
JP17869780A
Other languages
Japanese (ja)
Inventor
Nobuyuki Tsuda
Masaaki Tamaya
Takuji Kushiro
Hideo Mori
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP17869780A priority Critical patent/JPS57103240A/en
Publication of JPS57103240A publication Critical patent/JPS57103240A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/187—Luminescent screens screens with more than one luminescent material (as mixtures for the treatment of the screens)

Landscapes

  • Luminescent Compositions (AREA)

Abstract

PURPOSE:To obtain a picture tube with high luminous output which is pure blue luminous, by combining a specific amount of calcium fluoride phosphor which is formed by activating a blue fluorescent phosphor with Mn and a specific amount of zinc sulfide phosphor which is self-activated or activated with silver. CONSTITUTION:A prescribed amount of at least one of self-activated zinc sulfide phosphor and silver activated zinc sulfide phosphor is combined with Mn activated calcium fluoride phosphor which exhibits high luminous intensity under the irradiation of an electron beam scanning with high speed in order to elongate the phosphor decay of the obtained phosphor and enable to be pure blue luminous. 25-100pts.wt. of Mn activated calcium fluoride is combined with 75- 0pts.wt. of self-activated or silver activated zinc sulfide phosphor.
JP17869780A 1980-12-19 1980-12-19 Color picture tube Pending JPS57103240A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17869780A JPS57103240A (en) 1980-12-19 1980-12-19 Color picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17869780A JPS57103240A (en) 1980-12-19 1980-12-19 Color picture tube

Publications (1)

Publication Number Publication Date
JPS57103240A true JPS57103240A (en) 1982-06-26

Family

ID=16052965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17869780A Pending JPS57103240A (en) 1980-12-19 1980-12-19 Color picture tube

Country Status (1)

Country Link
JP (1) JPS57103240A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60195181A (en) * 1984-03-16 1985-10-03 Nichia Kagaku Kogyo Kk Fluorescent material for display having long afterglow
JPS6166784A (en) * 1984-09-08 1986-04-05 Nichia Kagaku Kogyo Kk Fluorescent screen of color crt

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60195181A (en) * 1984-03-16 1985-10-03 Nichia Kagaku Kogyo Kk Fluorescent material for display having long afterglow
JPS6166784A (en) * 1984-09-08 1986-04-05 Nichia Kagaku Kogyo Kk Fluorescent screen of color crt
JPH0412753B2 (en) * 1984-09-08 1992-03-05 Nichia Kagaku Kogyo Kk

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