JPS57191932A - Preparation of metal reflex film of cathode-ray tube - Google Patents

Preparation of metal reflex film of cathode-ray tube

Info

Publication number
JPS57191932A
JPS57191932A JP7689681A JP7689681A JPS57191932A JP S57191932 A JPS57191932 A JP S57191932A JP 7689681 A JP7689681 A JP 7689681A JP 7689681 A JP7689681 A JP 7689681A JP S57191932 A JPS57191932 A JP S57191932A
Authority
JP
Japan
Prior art keywords
film
fluorescent
skirt
aluminum
lowest
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
JP7689681A
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
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki 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, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP7689681A priority Critical patent/JPS57191932A/en
Publication of JPS57191932A publication Critical patent/JPS57191932A/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
    • H01J29/28—Luminescent screens with protective, conductive or reflective layers

Landscapes

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

Abstract

PURPOSE:To improve the luminance of a fluorescent screen by a method wherein, when preparing an organic film, the drying temperature is changed according to the surface to be prepared, and a metal film on only the corner and skirt of a panel is made porous depending on the condition of forming the film. CONSTITUTION:A surface of a fluorescent film is coated with a highly concentrated emulsion, which is then dried at temperatures higher than the lowest one for film-making to prepare a highly smooth film on the fluorescent film; after this, a hard emulsion containing small diameter grains is applied to the surface othr than that of the fluorescent film of the corner and skirt of a front panel provided with a flluorescent screen and dried at temperatures lower than the lowest one for film-making. As a result, if an aluminum film is formed thereon by vacuum evaporation, the aluminum film on the fluorescent film will have a high reflection factor, whereas the other portion, or an aluminum film around what is on the fluorescent film will be made highly porous, so that that peripheral portion may be free from blisters and not peeled off during the baking process later.
JP7689681A 1981-05-20 1981-05-20 Preparation of metal reflex film of cathode-ray tube Pending JPS57191932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7689681A JPS57191932A (en) 1981-05-20 1981-05-20 Preparation of metal reflex film of cathode-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7689681A JPS57191932A (en) 1981-05-20 1981-05-20 Preparation of metal reflex film of cathode-ray tube

Publications (1)

Publication Number Publication Date
JPS57191932A true JPS57191932A (en) 1982-11-25

Family

ID=13618407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7689681A Pending JPS57191932A (en) 1981-05-20 1981-05-20 Preparation of metal reflex film of cathode-ray tube

Country Status (1)

Country Link
JP (1) JPS57191932A (en)

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