JPS57103242A - Index type color picture tube - Google Patents

Index type color picture tube

Info

Publication number
JPS57103242A
JPS57103242A JP17887680A JP17887680A JPS57103242A JP S57103242 A JPS57103242 A JP S57103242A JP 17887680 A JP17887680 A JP 17887680A JP 17887680 A JP17887680 A JP 17887680A JP S57103242 A JPS57103242 A JP S57103242A
Authority
JP
Japan
Prior art keywords
metal back
back film
breaks
picture tube
type color
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
JP17887680A
Other languages
Japanese (ja)
Inventor
Hiroyuki Yoshida
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 JP17887680A priority Critical patent/JPS57103242A/en
Publication of JPS57103242A publication Critical patent/JPS57103242A/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
    • H01J29/34—Luminescent screens provided with permanent marks or references

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

PURPOSE:To improve the reliability and production yield by providing a plurality of thin breaks where index stripes are exposed through removing the metal back film in the beam scanning direction on the upper edge and other parts of the service screen of a metal back film provided on the inside surface of a panel. CONSTITUTION:Index stripes 4 are provided on the inside surface of a panel 1 other than color primaries phosphor stripes 2, a metal back film 3 is provided on the inside surface, and a plurality of thin breaks 8 of the metal back film 3 where the metal back film is removed in the beam scanning direction and index stripes are exposed on the upper edge and other parts of the service screen 7, which breaks are formed when the metal back film is evaporated by masking the parts to be breaks. Thus the metal back film is strong, index stripes can be formed easily, and the production yield and reliability can be improved.
JP17887680A 1980-12-19 1980-12-19 Index type color picture tube Pending JPS57103242A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17887680A JPS57103242A (en) 1980-12-19 1980-12-19 Index type color picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17887680A JPS57103242A (en) 1980-12-19 1980-12-19 Index type color picture tube

Publications (1)

Publication Number Publication Date
JPS57103242A true JPS57103242A (en) 1982-06-26

Family

ID=16056231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17887680A Pending JPS57103242A (en) 1980-12-19 1980-12-19 Index type color picture tube

Country Status (1)

Country Link
JP (1) JPS57103242A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5457443A (en) * 1992-03-30 1995-10-10 Yazaki Corporation Multifunctional combination switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5457443A (en) * 1992-03-30 1995-10-10 Yazaki Corporation Multifunctional combination switch

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