JPS5490961A - Cathode ray tube - Google Patents
Cathode ray tubeInfo
- Publication number
- JPS5490961A JPS5490961A JP14363178A JP14363178A JPS5490961A JP S5490961 A JPS5490961 A JP S5490961A JP 14363178 A JP14363178 A JP 14363178A JP 14363178 A JP14363178 A JP 14363178A JP S5490961 A JPS5490961 A JP S5490961A
- Authority
- JP
- Japan
- Prior art keywords
- pigment
- fluorescent
- substance
- coating
- face plate
- 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
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
PURPOSE: To avoid the reflection of external light and to increase the contrast, by coating the fluoredcent substance mixed with pigment at the back of the face plate in which the surface is coarse.
CONSTITUTION: The surface of the face plate 3 of the glass bulb is frost-processed and the fluorescent film consisting of the fluorescent substance particles 5 and the pigment coating them is uniformly coated on the internal surface. For example, if mono-color fluorescent substance with green illumination as fluorescent substance particles is used, when green substance such as chromium trioxide is used as the pigment, the illumination from the fluorescent particles transmits the pigment and light other than green color among external light is absorbed, then establishing good contrast. Thus, the coating of the fluorescent substance 5 mixed with the pigment 6 at the back of the face plate 3 prevents the reflection of external light and sufficiently increases the contrast.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14363178A JPS5490961A (en) | 1978-11-20 | 1978-11-20 | Cathode ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14363178A JPS5490961A (en) | 1978-11-20 | 1978-11-20 | Cathode ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5490961A true JPS5490961A (en) | 1979-07-19 |
Family
ID=15343239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14363178A Pending JPS5490961A (en) | 1978-11-20 | 1978-11-20 | Cathode ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5490961A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5897244A (en) * | 1981-12-04 | 1983-06-09 | Matsushita Electronics Corp | Color picture tube |
JPS62150636A (en) * | 1985-12-24 | 1987-07-04 | Mitsubishi Electric Corp | Matrix type cathode-ray tube |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5211754A (en) * | 1975-07-17 | 1977-01-28 | Nippon Electric Glass Co Ltd | Panel for television tube |
JPS52107768A (en) * | 1976-03-08 | 1977-09-09 | Toshiba Corp | Color picture tube |
-
1978
- 1978-11-20 JP JP14363178A patent/JPS5490961A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5211754A (en) * | 1975-07-17 | 1977-01-28 | Nippon Electric Glass Co Ltd | Panel for television tube |
JPS52107768A (en) * | 1976-03-08 | 1977-09-09 | Toshiba Corp | Color picture tube |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5897244A (en) * | 1981-12-04 | 1983-06-09 | Matsushita Electronics Corp | Color picture tube |
JPS62150636A (en) * | 1985-12-24 | 1987-07-04 | Mitsubishi Electric Corp | Matrix type cathode-ray tube |
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