JPS5746439A - Manufacture of fluorescent screen for picture tube - Google Patents

Manufacture of fluorescent screen for picture tube

Info

Publication number
JPS5746439A
JPS5746439A JP12240380A JP12240380A JPS5746439A JP S5746439 A JPS5746439 A JP S5746439A JP 12240380 A JP12240380 A JP 12240380A JP 12240380 A JP12240380 A JP 12240380A JP S5746439 A JPS5746439 A JP S5746439A
Authority
JP
Japan
Prior art keywords
pigment
phosphor
particles
precipitate
suspension
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
JP12240380A
Other languages
Japanese (ja)
Inventor
Yoshihiko Miyata
Koichi Nakajima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12240380A priority Critical patent/JPS5746439A/en
Publication of JPS5746439A publication Critical patent/JPS5746439A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22—Applying luminescent coatings
    • H01J9/221—Applying luminescent coatings in continuous layers
    • H01J9/224—Applying luminescent coatings in continuous layers by precipitation

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

PURPOSE:To improve contrast by feeding suspension mixed with a pigment having higher precipitation speed than phosphor material into a phosphor material suspension and applying the pigment on the interface of the face plate by difference in the precipitation speed. CONSTITUTION:After injecting a mixture solution prepared by dissolving pure water and barium acetate into a glass bulb 1, suspension 2 obtained by suspending phosphor particles and pigment particles in a potassium silicate solution is added thereto. Pigment having higher precipitation speed than phosphor particles is preferably employed. When it is allowed to stand still to precipitate, pigment particles first precipitate on the upper surface of the face plate 1a and then phosphor particles precipitate on it. Afterward, phosphor surface is completed through baking. A fluorescent screen having uniform and high contrast without peeling can be obtained.
JP12240380A 1980-09-05 1980-09-05 Manufacture of fluorescent screen for picture tube Pending JPS5746439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12240380A JPS5746439A (en) 1980-09-05 1980-09-05 Manufacture of fluorescent screen for picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12240380A JPS5746439A (en) 1980-09-05 1980-09-05 Manufacture of fluorescent screen for picture tube

Publications (1)

Publication Number Publication Date
JPS5746439A true JPS5746439A (en) 1982-03-16

Family

ID=14834924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12240380A Pending JPS5746439A (en) 1980-09-05 1980-09-05 Manufacture of fluorescent screen for picture tube

Country Status (1)

Country Link
JP (1) JPS5746439A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH052186U (en) * 1991-06-19 1993-01-14 小野産業株式会社 Magnetic display device
EP0994455A2 (en) 1998-10-16 2000-04-19 TDK Corporation Magnetophoresis type display device and process of production of same
US7015892B1 (en) 1999-09-10 2006-03-21 Takara Co., Ltd. Magnetophoretic display panel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH052186U (en) * 1991-06-19 1993-01-14 小野産業株式会社 Magnetic display device
EP0994455A2 (en) 1998-10-16 2000-04-19 TDK Corporation Magnetophoresis type display device and process of production of same
US7015892B1 (en) 1999-09-10 2006-03-21 Takara Co., Ltd. Magnetophoretic display panel

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