JPS5557234A - Method for manufacturing fluorescent screen of picture tube - Google Patents

Method for manufacturing fluorescent screen of picture tube

Info

Publication number
JPS5557234A
JPS5557234A JP13055678A JP13055678A JPS5557234A JP S5557234 A JPS5557234 A JP S5557234A JP 13055678 A JP13055678 A JP 13055678A JP 13055678 A JP13055678 A JP 13055678A JP S5557234 A JPS5557234 A JP S5557234A
Authority
JP
Japan
Prior art keywords
fluorescent screen
picture tube
reduced
pinholes
panel
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
JP13055678A
Other languages
Japanese (ja)
Inventor
Hisamitsu 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.)
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 JP13055678A priority Critical patent/JPS5557234A/en
Publication of JPS5557234A publication Critical patent/JPS5557234A/en
Pending legal-status Critical Current

Links

Landscapes

  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

PURPOSE: To provide a high brightness picture screen, by applying the slurry containing a greatly reduced amount of polyvinyl alcohol so that a high density fluorescent screen with reduced pinholes is formed.
CONSTITUTION: The amount of polyvinyl alcohol contained in the phosphor suspension is adjusted to be less than 1.8wt% when it is injected onto the panel, and the temperature is kept lower than 30°C at the injecting time of the suspension, and all over the inner surface of the panel, it is coated with the slurry with said inner surface being kept up ward. Thus, pinholes are geatly reduced and the coloring due to baking is eliminated, and the brightness can be improved.
COPYRIGHT: (C)1980,JPO&Japio
JP13055678A 1978-10-25 1978-10-25 Method for manufacturing fluorescent screen of picture tube Pending JPS5557234A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13055678A JPS5557234A (en) 1978-10-25 1978-10-25 Method for manufacturing fluorescent screen of picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13055678A JPS5557234A (en) 1978-10-25 1978-10-25 Method for manufacturing fluorescent screen of picture tube

Publications (1)

Publication Number Publication Date
JPS5557234A true JPS5557234A (en) 1980-04-26

Family

ID=15037085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13055678A Pending JPS5557234A (en) 1978-10-25 1978-10-25 Method for manufacturing fluorescent screen of picture tube

Country Status (1)

Country Link
JP (1) JPS5557234A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980023549A (en) * 1996-09-30 1998-07-06 엄길용 Phosphor Composition for Color CRT

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4935013A (en) * 1972-07-31 1974-04-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4935013A (en) * 1972-07-31 1974-04-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980023549A (en) * 1996-09-30 1998-07-06 엄길용 Phosphor Composition for Color CRT

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