JPS5589380A - Treatment of fluorescent substance emitting light in electric field - Google Patents
Treatment of fluorescent substance emitting light in electric fieldInfo
- Publication number
- JPS5589380A JPS5589380A JP16260878A JP16260878A JPS5589380A JP S5589380 A JPS5589380 A JP S5589380A JP 16260878 A JP16260878 A JP 16260878A JP 16260878 A JP16260878 A JP 16260878A JP S5589380 A JPS5589380 A JP S5589380A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent substance
- emitting light
- substance
- sulfide
- copper
- 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 remove the copper sulfide deposited on the surface of the title copper- activated sulfide-type fluorescent substance completely, and to obtain the emission of high brightness, by washing the substance with a non-toxic aqueoue solution containing ammonium hydroxide and an oxidizing agent.
CONSTITUTION: A sulfide-type fluorescent substance comprising calcined active copper as an activator, emitting light in an electric fiedl, is washed with an aqueous solution containing ammonium hydroxide and an oxidizing agent, preferably hydrogen peroxide, once to three times. Preferably, the substance is further washed with an aqueous solution of an alkali metal polysulfide to exhibit the emission of higher brightness.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53162608A JPS6039108B2 (en) | 1978-12-27 | 1978-12-27 | Method of processing electroluminescent phosphors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53162608A JPS6039108B2 (en) | 1978-12-27 | 1978-12-27 | Method of processing electroluminescent phosphors |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5589380A true JPS5589380A (en) | 1980-07-05 |
JPS6039108B2 JPS6039108B2 (en) | 1985-09-04 |
Family
ID=15757821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53162608A Expired JPS6039108B2 (en) | 1978-12-27 | 1978-12-27 | Method of processing electroluminescent phosphors |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6039108B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS646395A (en) * | 1987-06-26 | 1989-01-10 | Matsushita Electric Ind Co Ltd | Manufacture of thin film el panel |
JPH03217483A (en) * | 1990-01-22 | 1991-09-25 | Kasei Optonix Co Ltd | Treatment of fluorescent substance |
JPH0423886A (en) * | 1990-05-17 | 1992-01-28 | Kasei Optonix Co Ltd | Treatment of electro-luminescent fluorescent material |
WO2003020848A1 (en) * | 2001-08-30 | 2003-03-13 | Nemoto & Co., Ltd. | Phosphor and method for preparation thereof |
JP2006188692A (en) * | 2004-12-28 | 2006-07-20 | Osram Sylvania Inc | Electroluminescent phosphor |
WO2008024060A1 (en) * | 2006-08-25 | 2008-02-28 | Abb Research Ltd | A method of treating copper sulphide deposits in an electrical apparatus by the use of oxidising agents |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04176477A (en) * | 1990-11-13 | 1992-06-24 | High Tec Kk | Spherical object collecting vehicle, and steering and stopping controller for self-propelling golf cart |
-
1978
- 1978-12-27 JP JP53162608A patent/JPS6039108B2/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS646395A (en) * | 1987-06-26 | 1989-01-10 | Matsushita Electric Ind Co Ltd | Manufacture of thin film el panel |
JP2605720B2 (en) * | 1987-06-26 | 1997-04-30 | 松下電器産業株式会社 | Method for manufacturing thin-film EL panel |
JPH03217483A (en) * | 1990-01-22 | 1991-09-25 | Kasei Optonix Co Ltd | Treatment of fluorescent substance |
JPH0423886A (en) * | 1990-05-17 | 1992-01-28 | Kasei Optonix Co Ltd | Treatment of electro-luminescent fluorescent material |
WO2003020848A1 (en) * | 2001-08-30 | 2003-03-13 | Nemoto & Co., Ltd. | Phosphor and method for preparation thereof |
JP2006188692A (en) * | 2004-12-28 | 2006-07-20 | Osram Sylvania Inc | Electroluminescent phosphor |
WO2008024060A1 (en) * | 2006-08-25 | 2008-02-28 | Abb Research Ltd | A method of treating copper sulphide deposits in an electrical apparatus by the use of oxidising agents |
Also Published As
Publication number | Publication date |
---|---|
JPS6039108B2 (en) | 1985-09-04 |
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