JPS57134850A - Cathode-ray tube - Google Patents
Cathode-ray tubeInfo
- Publication number
- JPS57134850A JPS57134850A JP2115181A JP2115181A JPS57134850A JP S57134850 A JPS57134850 A JP S57134850A JP 2115181 A JP2115181 A JP 2115181A JP 2115181 A JP2115181 A JP 2115181A JP S57134850 A JPS57134850 A JP S57134850A
- Authority
- JP
- Japan
- Prior art keywords
- color
- zns
- copper
- zinc sulfide
- phosphor
- 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
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
- H01J29/24—Supports for luminescent material
Landscapes
- Luminescent Compositions (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
PURPOSE:To improve the unstable color of a fluorescent surface, which is caused when neodymium glass is used as a face plate glass, by using zinc sulfide phosphor activated with copper and aluminum (ZnS:Cu, Al) as a green G color emitting phosphor. CONSTITUTION:When neodymium glass is used as the face plate glass of a fluorescent screen, the change of the color of the above fluorescent screen can be almost completely removed by reducing an appropriate amount of light which has wavelengths of 470-480nm and is contained in the reflected external light. In order to attain this purpose, zinc sulfide phosphor activated with copper and aluminum (ZnS:Cu, Al) is used as a green G color emitting phosphor element so as to obtain a fluorescent screen with stable color. The amount of copper (Cu) used as an activator for the ZnS:Cu, Al phosphor is preferred to be above 5X10<-5>g per 1g zinc sulfide base.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2115181A JPS57134850A (en) | 1981-02-13 | 1981-02-13 | Cathode-ray tube |
| KR8200134A KR860001676B1 (en) | 1981-01-29 | 1982-01-14 | A cathode ray tube |
| GB8202537A GB2093268B (en) | 1981-02-13 | 1982-01-29 | Cathode ray tube |
| DE19823204895 DE3204895A1 (en) | 1981-02-13 | 1982-02-12 | CATHODE RAY TUBE |
| US06/607,729 US4728856A (en) | 1981-02-13 | 1984-05-09 | Cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2115181A JPS57134850A (en) | 1981-02-13 | 1981-02-13 | Cathode-ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57134850A true JPS57134850A (en) | 1982-08-20 |
| JPS6359502B2 JPS6359502B2 (en) | 1988-11-18 |
Family
ID=12046903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2115181A Granted JPS57134850A (en) | 1981-01-29 | 1981-02-13 | Cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57134850A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4987338A (en) * | 1988-03-31 | 1991-01-22 | Kabushiki Kaisha Toshiba | Cathode ray tube with film on face-plate |
| US6570317B1 (en) | 1998-06-19 | 2003-05-27 | Kabushiki Kaisha Toshiba | Cathode-ray tube and method for manufacturing the same |
-
1981
- 1981-02-13 JP JP2115181A patent/JPS57134850A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4987338A (en) * | 1988-03-31 | 1991-01-22 | Kabushiki Kaisha Toshiba | Cathode ray tube with film on face-plate |
| US6570317B1 (en) | 1998-06-19 | 2003-05-27 | Kabushiki Kaisha Toshiba | Cathode-ray tube and method for manufacturing the same |
| MY119754A (en) * | 1998-06-19 | 2005-07-29 | Toshiba Kk | Cathode ray tube and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6359502B2 (en) | 1988-11-18 |
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