JPS5462185A - Filter-covered fluorescent substance - Google Patents
Filter-covered fluorescent substanceInfo
- Publication number
- JPS5462185A JPS5462185A JP12756577A JP12756577A JPS5462185A JP S5462185 A JPS5462185 A JP S5462185A JP 12756577 A JP12756577 A JP 12756577A JP 12756577 A JP12756577 A JP 12756577A JP S5462185 A JPS5462185 A JP S5462185A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- resin
- fluorescent substance
- covered
- fluorescent
- 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
Links
Abstract
PURPOSE: To prevent separation of a filter material from a filter-covered fluorescent substance used for the fluorescent screen of a color picture tube and to enhance the luminous efficiency of the substance by coating the outside of the filter with a polyvinyl acetal type resin.
CONSTITUTION: The surface of a fluorescent substance, e.g. silver-activated zinc sulfide one is covered with a filter material of silicate, pref. calcium silicate and the outside of the filter is further coated with a polyvinyl acetal type resin, e.g. polyvinyl formal resin or polyvinyl butyral resin to give a filter-covered fluorescent substance forming a color television fluorescent screen. The amt. of the resin coated is pref. 0.05W3% to the fluorescent substance. The resin is insol. in water, suitable for use as a coating material, and also suitable for use as a binder for a fluorescent substance dispersion. After forming a fluorescent screen, the resin can be removed easily by baking at 400W500°C and hence it does not deteriorate the screen.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12756577A JPS5462185A (en) | 1977-10-26 | 1977-10-26 | Filter-covered fluorescent substance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12756577A JPS5462185A (en) | 1977-10-26 | 1977-10-26 | Filter-covered fluorescent substance |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5462185A true JPS5462185A (en) | 1979-05-18 |
Family
ID=14963171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12756577A Pending JPS5462185A (en) | 1977-10-26 | 1977-10-26 | Filter-covered fluorescent substance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5462185A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10475010B2 (en) | 2008-01-10 | 2019-11-12 | Microsoft Technology Licensing, Llc | Federated entertainment access service |
-
1977
- 1977-10-26 JP JP12756577A patent/JPS5462185A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10475010B2 (en) | 2008-01-10 | 2019-11-12 | Microsoft Technology Licensing, Llc | Federated entertainment access service |
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