JPS57145174A - El fluorescent substance and preparation of same - Google Patents
El fluorescent substance and preparation of sameInfo
- Publication number
- JPS57145174A JPS57145174A JP56029930A JP2993081A JPS57145174A JP S57145174 A JPS57145174 A JP S57145174A JP 56029930 A JP56029930 A JP 56029930A JP 2993081 A JP2993081 A JP 2993081A JP S57145174 A JPS57145174 A JP S57145174A
- Authority
- JP
- Japan
- Prior art keywords
- zinc sulfide
- fluorescent substance
- copper
- ammonium bromide
- sulfide
- 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.)
- Granted
Links
Landscapes
- Luminescent Compositions (AREA)
Abstract
PURPOSE: To obtain an EL fluorescent substance with high luminance and prolonged life, by calcining zinc sulfide mixed with specified amounts of copper acetate and ammonium bromide in an atmosphere contg. hydrogen sufdide.
CONSTITUTION: An EL fluorescent substance consisting of zinc sulfide, 0.1W 0.5mol% copper and 0.05W0.5mol% bromine, each based on zinc sulfide is prepd. by calcining a mixt. consisting of zinc sulfide, 0.15W1.5mol% copper acetate and 0.15W24mol% ammonium bromide, each based on zinc sulfide, in an atmosphere contg. hydrogen sulfide. An excess amt. of copper acetate is used because it partially enters a crystal and the rest sticks on the surface of the crystal and is then washed off. A relatively large amt. of ammonium bromide is used as a flux because fromine easily sublimes and more difficultly enters the fluorescent substance than copper. Calcination is carried out in an atmosphere contg. hydrogen sulfide to prevent deterioration of the crystallizability.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56029930A JPS57145174A (en) | 1981-03-04 | 1981-03-04 | El fluorescent substance and preparation of same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56029930A JPS57145174A (en) | 1981-03-04 | 1981-03-04 | El fluorescent substance and preparation of same |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57145174A true JPS57145174A (en) | 1982-09-08 |
JPS6144912B2 JPS6144912B2 (en) | 1986-10-04 |
Family
ID=12289701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56029930A Granted JPS57145174A (en) | 1981-03-04 | 1981-03-04 | El fluorescent substance and preparation of same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57145174A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6248261B1 (en) * | 1998-08-26 | 2001-06-19 | Kabushiki Kaisha Toshiba | Electroluminescent phosphor and electroluminescent element using the same |
JP2004506864A (en) * | 2000-08-11 | 2004-03-04 | ポール ミュラー カンパニー | Bimetal tube of heat exchanger of ice machine |
JP2008214461A (en) * | 2007-03-02 | 2008-09-18 | Canon Inc | Phosphor film and phosphor film production method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH039511U (en) * | 1989-06-12 | 1991-01-29 |
-
1981
- 1981-03-04 JP JP56029930A patent/JPS57145174A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6248261B1 (en) * | 1998-08-26 | 2001-06-19 | Kabushiki Kaisha Toshiba | Electroluminescent phosphor and electroluminescent element using the same |
JP2004506864A (en) * | 2000-08-11 | 2004-03-04 | ポール ミュラー カンパニー | Bimetal tube of heat exchanger of ice machine |
JP2008214461A (en) * | 2007-03-02 | 2008-09-18 | Canon Inc | Phosphor film and phosphor film production method |
Also Published As
Publication number | Publication date |
---|---|
JPS6144912B2 (en) | 1986-10-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5358491A (en) | Fluorescent substance | |
JPS57145174A (en) | El fluorescent substance and preparation of same | |
JPS53119287A (en) | Fluorescent substance | |
JPS538382A (en) | Blue luminous fluorescent substance having filter effect | |
JPS56112050A (en) | Cathode ray tube | |
JPS51151282A (en) | Yellow fluorescent substance and method of making thereof | |
JPS5335686A (en) | Fluorescent body with pigment | |
JPS5218482A (en) | Blue luminescent composition | |
JPS57141480A (en) | Green luminescent phosphor | |
JPS5244557A (en) | Manufacturing process of cathode-ray tube fluorescent surface | |
JPS5335687A (en) | Fluorescent body with pigment | |
JPS5334689A (en) | Pigment-attached fluorescent substance | |
JPS5490879A (en) | Fluorescent lamp | |
JPS53141185A (en) | Method of fabricating green color luminous fluorescent body | |
JPS57174380A (en) | Green light-emitting fluorescent film for cathode-ray tube | |
JPS51151283A (en) | Yellow fluorescent substance and method of making thereof | |
JPS5583132A (en) | Blue luminous fluorescent member and color televison braun tube | |
JPS55165984A (en) | Purification of green light-emitting phosphor | |
JPS541287A (en) | Fluorescent substance | |
JPS5659890A (en) | Green light-emitting phosphor | |
JPS52116788A (en) | Green fluorescent substance and color braun tube | |
JPS52124485A (en) | Production of polysulfide fluorescent substance | |
JPS52104483A (en) | Production of green fluorescent substance | |
JPS57128779A (en) | Fluorescent substance | |
JPS5399085A (en) | Fluorescent substance |