JPS5713651A - Green luminous phosphor for color picture tube - Google Patents

Green luminous phosphor for color picture tube

Info

Publication number
JPS5713651A
JPS5713651A JP8895180A JP8895180A JPS5713651A JP S5713651 A JPS5713651 A JP S5713651A JP 8895180 A JP8895180 A JP 8895180A JP 8895180 A JP8895180 A JP 8895180A JP S5713651 A JPS5713651 A JP S5713651A
Authority
JP
Japan
Prior art keywords
picture tube
color picture
phosphor
luminous
luminous phosphor
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
JP8895180A
Other languages
Japanese (ja)
Inventor
Tadashi Wakatsuki
Takeshi Takahara
Kiyoshi Inoue
Minoru Watanabe
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 JP8895180A priority Critical patent/JPS5713651A/en
Publication of JPS5713651A publication Critical patent/JPS5713651A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/7767—Chalcogenides
    • C09K11/7769—Oxides
    • C09K11/7771—Oxysulfides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)

Abstract

PURPOSE:To increase the luminous brightness and the color purity of a green luminous phosphor for a color picture tube by preparing the phosphor from a mixture consisting of at least one element of Y, Gd, La and Lu, and a rare earth element oxide which has a given composition and is made by coactivating Tb and Db in a given proportion. CONSTITUTION:At least one element of Y, Gd, La and Lu, and either a rare earth element oxide which contains both Tb and Dy, or a dompound such as a carbonate, an oxalate or a nitrate which contains both Tb and Dy and can change into an oxide by heating and sintering are homogeneously mixed and sintered. The composition of these compounds are represented by the general formula; x and y are restricted to 0.0001<=x<=0.1 and 0.0001<=y<=0.05. In addition, the Dy concentration is made over 5.20mol% of the Tb concentraion. By the means mentioned above, the luminous brightness and the color purity of a luminous phosphor for a color picture tube can be increased.
JP8895180A 1980-06-30 1980-06-30 Green luminous phosphor for color picture tube Pending JPS5713651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8895180A JPS5713651A (en) 1980-06-30 1980-06-30 Green luminous phosphor for color picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8895180A JPS5713651A (en) 1980-06-30 1980-06-30 Green luminous phosphor for color picture tube

Publications (1)

Publication Number Publication Date
JPS5713651A true JPS5713651A (en) 1982-01-23

Family

ID=13957168

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8895180A Pending JPS5713651A (en) 1980-06-30 1980-06-30 Green luminous phosphor for color picture tube

Country Status (1)

Country Link
JP (1) JPS5713651A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694217A (en) * 1984-10-26 1987-09-15 Hitachi, Ltd. Cathode ray tube including white luminous phosphor screen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694217A (en) * 1984-10-26 1987-09-15 Hitachi, Ltd. Cathode ray tube including white luminous phosphor screen

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