JPS54149570A - Fluorescent screen of cathode-ray tube - Google Patents
Fluorescent screen of cathode-ray tubeInfo
- Publication number
- JPS54149570A JPS54149570A JP5855278A JP5855278A JPS54149570A JP S54149570 A JPS54149570 A JP S54149570A JP 5855278 A JP5855278 A JP 5855278A JP 5855278 A JP5855278 A JP 5855278A JP S54149570 A JPS54149570 A JP S54149570A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent material
- rare earth
- fluorescent
- earth activation
- cathode
- 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
Abstract
PURPOSE: To improve quality, brightness and resolution by using a rare earth activation fluorescent material as the red fluorescent material of the fluorescent screen of a cathode-ray tube, and a fluorescent material, obtained by mixing a sulfide fluorescent material with a rare earth activation fluorescent material in the weight ratio of 1:2, as the green or blue fluorescent material.
CONSTITUTION: The fluorescent screen of a cathode-ray tube on which fluorescent materials emitting red, green and blue color beams through the impact of electron beams are applied in fixed patterns uses as the red fluorescent material a rare earth activation fluorescent material from which high brightness can be obtained. As green or blue fluorescent materials, mixture fluorescent materials are used which can be obtained by mixing a sulfide fluorescent material with a rare earth activation fluorescent material which hardly causes brightness saturation in a high-current range. The mixing amount of the rare earth activation fluorescent material in this mixture fluorscent material should be more than 50 weight%; for example, the ratio of the sulfide fluorescent material to the rare earth activation fluorescent material is set to 1:2 (weight ratio). As a result, high brightness and high resolution can be obtained without losing the evenness of a white screen in the high-current range.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5855278A JPS54149570A (en) | 1978-05-17 | 1978-05-17 | Fluorescent screen of cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5855278A JPS54149570A (en) | 1978-05-17 | 1978-05-17 | Fluorescent screen of cathode-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54149570A true JPS54149570A (en) | 1979-11-22 |
Family
ID=13087613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5855278A Pending JPS54149570A (en) | 1978-05-17 | 1978-05-17 | Fluorescent screen of cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54149570A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641649A (en) * | 1979-09-14 | 1981-04-18 | Toshiba Corp | Cathode ray tube for color television set |
| US7667382B2 (en) | 2006-06-20 | 2010-02-23 | Canon Kabushiki Kaisha | Substrate having fluorescent member, image display apparatus and image receiving and displaying apparatus |
| US10706975B2 (en) | 2015-05-15 | 2020-07-07 | Kabushiki Kaisha Toshiba | Operating floor confinement and nuclear plant |
-
1978
- 1978-05-17 JP JP5855278A patent/JPS54149570A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5641649A (en) * | 1979-09-14 | 1981-04-18 | Toshiba Corp | Cathode ray tube for color television set |
| JPH0115556B2 (en) * | 1979-09-14 | 1989-03-17 | Tokyo Shibaura Electric Co | |
| US7667382B2 (en) | 2006-06-20 | 2010-02-23 | Canon Kabushiki Kaisha | Substrate having fluorescent member, image display apparatus and image receiving and displaying apparatus |
| US10706975B2 (en) | 2015-05-15 | 2020-07-07 | Kabushiki Kaisha Toshiba | Operating floor confinement and nuclear plant |
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