JPS54100663A - Fluorescent screen for cathode-ray tube - Google Patents
Fluorescent screen for cathode-ray tubeInfo
- Publication number
- JPS54100663A JPS54100663A JP768578A JP768578A JPS54100663A JP S54100663 A JPS54100663 A JP S54100663A JP 768578 A JP768578 A JP 768578A JP 768578 A JP768578 A JP 768578A JP S54100663 A JPS54100663 A JP S54100663A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent substance
- layer
- layer fluorescent
- rate
- luminesce
- 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
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
PURPOSE: To expand the recognition range of an echo with a rate between luminous intensity and afterglow intensity made small by using (Zn,Cd)S:Cu and Cl for the 1st-layer fluorescent substance and Y2SiO5:Ce for the 2nd-layer fluorescent substance.
CONSTITUTION: The back surface of face plate 1 is coated with (Zn,Cd)S:Cu and Cl as the 1st-layer fluorescent substance 2 and Y2SiO5:Ce of 2 to 3μm in particle diameter as the 2nd-layer fluorescent substance. From the back of face plate 1, electron beam 5 strikes this fluorescent screen through aluminum foil layer 4 to make the 2nd-layer fluorescent substance 3 luminesce, and by this light, the 1st- layer fluorescent substance 2 is excited to luminesce. In this case, the peak wavelength of the luminescence of the 2nd-layer fluorescent substance 3 is between 390 and 420nm, which is within the effective excitation wavelength range 350 to 450 of the 1st-layer fluorescent substance and the grain diameter of the 2nd fluorescent substance 3 is extremely small, so that the contact area to the 1st fluorescent substance 2 will be widened. As a result, the 1st fluorescent substance is excited efficiently, afterglow intensity increases, and the rate between luminous intensity and afterglow intensity decrease. Further, the rate of use of beam increases.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP768578A JPS54100663A (en) | 1978-01-25 | 1978-01-25 | Fluorescent screen for cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP768578A JPS54100663A (en) | 1978-01-25 | 1978-01-25 | Fluorescent screen for cathode-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54100663A true JPS54100663A (en) | 1979-08-08 |
Family
ID=11672634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP768578A Pending JPS54100663A (en) | 1978-01-25 | 1978-01-25 | Fluorescent screen for cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54100663A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0680244A2 (en) * | 1994-03-24 | 1995-11-02 | Fuji Electric Co. Ltd. | Thin film light emitting element |
| US6312860B1 (en) * | 1997-10-15 | 2001-11-06 | Dai Nippon Printing Co., Ltd. | Phosphor composition, phosphor paste, and photosensitive dry film |
-
1978
- 1978-01-25 JP JP768578A patent/JPS54100663A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0680244A2 (en) * | 1994-03-24 | 1995-11-02 | Fuji Electric Co. Ltd. | Thin film light emitting element |
| EP0680244A3 (en) * | 1994-03-24 | 1995-11-29 | Fuji Electric Co Ltd | |
| US6312860B1 (en) * | 1997-10-15 | 2001-11-06 | Dai Nippon Printing Co., Ltd. | Phosphor composition, phosphor paste, and photosensitive dry film |
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