JPS57212286A - Production of fluorescent substance - Google Patents
Production of fluorescent substanceInfo
- Publication number
- JPS57212286A JPS57212286A JP9668981A JP9668981A JPS57212286A JP S57212286 A JPS57212286 A JP S57212286A JP 9668981 A JP9668981 A JP 9668981A JP 9668981 A JP9668981 A JP 9668981A JP S57212286 A JPS57212286 A JP S57212286A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent substance
- ion
- solution containing
- production
- filtered
- 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
Landscapes
- Luminescent Compositions (AREA)
Abstract
PURPOSE: Three solutions containing Y, Eu and W ions each are mixed and the precipitate formed is filtered to give a red fine-particle fluorescent substance of high luminescence.
CONSTITUTION: (A) A solution containing Y ion and/or yttrium hydroxide suspension, (B) a solution containing Eu ion and/or europium hydroxide suspension and (C) a solution containing W ion are mixed and the precipitate formed is filtered to give the objective fluorescent substance of the formula (X is 0.03≤X≤0.2). The precipitate is calcined in air, for example, at 1,000°C for 2hr to increase its luminescence.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9668981A JPS57212286A (en) | 1981-06-24 | 1981-06-24 | Production of fluorescent substance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9668981A JPS57212286A (en) | 1981-06-24 | 1981-06-24 | Production of fluorescent substance |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57212286A true JPS57212286A (en) | 1982-12-27 |
Family
ID=14171754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9668981A Pending JPS57212286A (en) | 1981-06-24 | 1981-06-24 | Production of fluorescent substance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57212286A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100428612B1 (en) * | 1996-12-13 | 2004-12-29 | 삼성에스디아이 주식회사 | Red phosphor for an active luminous-type liquid crystal display, especially concerned with increasing brightness compared to a deep red phosphor |
US7537714B2 (en) | 2004-12-24 | 2009-05-26 | Samsung Sdi Co., Ltd. | Yttrium based phosphors comprising conducting material, process for preparing the yttrium based phosphors and display device using the yttrium based phosphors |
CN102585819A (en) * | 2012-01-19 | 2012-07-18 | 苏州大学 | Lanthanum boron tungstate red fluorescent powder and preparation method thereof |
-
1981
- 1981-06-24 JP JP9668981A patent/JPS57212286A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100428612B1 (en) * | 1996-12-13 | 2004-12-29 | 삼성에스디아이 주식회사 | Red phosphor for an active luminous-type liquid crystal display, especially concerned with increasing brightness compared to a deep red phosphor |
US7537714B2 (en) | 2004-12-24 | 2009-05-26 | Samsung Sdi Co., Ltd. | Yttrium based phosphors comprising conducting material, process for preparing the yttrium based phosphors and display device using the yttrium based phosphors |
CN102585819A (en) * | 2012-01-19 | 2012-07-18 | 苏州大学 | Lanthanum boron tungstate red fluorescent powder and preparation method thereof |
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