JPS54111277A - Production for fluorescent screen of color picture tube - Google Patents

Production for fluorescent screen of color picture tube

Info

Publication number
JPS54111277A
JPS54111277A JP1890078A JP1890078A JPS54111277A JP S54111277 A JPS54111277 A JP S54111277A JP 1890078 A JP1890078 A JP 1890078A JP 1890078 A JP1890078 A JP 1890078A JP S54111277 A JPS54111277 A JP S54111277A
Authority
JP
Japan
Prior art keywords
film
light absorbing
absorbing film
photo resistor
face plate
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
JP1890078A
Other languages
Japanese (ja)
Inventor
Tatsuo Tanaka
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP1890078A priority Critical patent/JPS54111277A/en
Publication of JPS54111277A publication Critical patent/JPS54111277A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To make it possible to prevent the leakage of the light generated from a fluorescent substance and improve a screen contrast by forming a film, which has a non-transmission property for light, on the light absorbing film on the fluorescent screen of a color picture tube.
CONSTITUTION: Light absorbing film 5 is formed in a prescribed pattern of face plate 1' of panel substrate 1, and photo resistor film 8 is formed on film 5, and ultraviolet rays 2 are irradiated from the side opposite to face plate 1' to photo resistor film 8 through face plate 1'. Light absorbing film 5 functions as a filter, and pseudo-patterns 8r, 8g and 8b of fluorescent substances are formed by the exposed part of photo resistor film 8. Black light absorbing materials such as graphite are applied to patterns above and all the surface of light absorbing film 5 and are dried to form light absorbing film 5', and next, this film in other parts is removed by photo resistor dissolving materials and water spray. Thus, another light absorbing film 5' is formed on light absorbing film 5 by polymerization, so that a large-thickness black matrix can be obtained.
COPYRIGHT: (C)1979,JPO&Japio
JP1890078A 1978-02-20 1978-02-20 Production for fluorescent screen of color picture tube Pending JPS54111277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1890078A JPS54111277A (en) 1978-02-20 1978-02-20 Production for fluorescent screen of color picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1890078A JPS54111277A (en) 1978-02-20 1978-02-20 Production for fluorescent screen of color picture tube

Publications (1)

Publication Number Publication Date
JPS54111277A true JPS54111277A (en) 1979-08-31

Family

ID=11984453

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1890078A Pending JPS54111277A (en) 1978-02-20 1978-02-20 Production for fluorescent screen of color picture tube

Country Status (1)

Country Link
JP (1) JPS54111277A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5433655A (en) * 1977-08-19 1979-03-12 Sanyo Electric Co Ltd Fluorescent screen of black matrix type braun tube and its manufacture

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5433655A (en) * 1977-08-19 1979-03-12 Sanyo Electric Co Ltd Fluorescent screen of black matrix type braun tube and its manufacture

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