JPS54148473A - Cathode-ray tube - Google Patents
Cathode-ray tubeInfo
- Publication number
- JPS54148473A JPS54148473A JP5780678A JP5780678A JPS54148473A JP S54148473 A JPS54148473 A JP S54148473A JP 5780678 A JP5780678 A JP 5780678A JP 5780678 A JP5780678 A JP 5780678A JP S54148473 A JPS54148473 A JP S54148473A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- fluorescent substance
- fluorescent
- cathode
- ray tube
- 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 increase the contrast by providing the filters which transmits the light emitted from some fluorescent substances but absorb the light emitted from other fluorescent substances onto the inner surface of the face plate of the cathode-ray tube into the dot or stripe formation and then coating each fluorescent substance over the filters.
CONSTITUTION: Red filter layer 11R which transmits only the light emitted from the red fluorescent substance, green filter layer 11G transmitting only the light from the green fluorescent substance and blue filter layer 11B transmitting only the light from the blue fluorescent substance are provided close to each other and with no mutual overlap onto the inner circumference surface of face plate glass 1 of the cathode-ray tube. Then red fluorescent layer 12R, green fluorescent substance layer 12G and blue fluorescent layer 12B are coated over layer 11R, 11G and 11B respectively, and Fl reflector film 5 is formed on these layers. In such constitution, the contrast can be increased by 3/T-times with no reduction of the brightness when the glass transmittance is set to T.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5780678A JPS54148473A (en) | 1978-05-15 | 1978-05-15 | Cathode-ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5780678A JPS54148473A (en) | 1978-05-15 | 1978-05-15 | Cathode-ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54148473A true JPS54148473A (en) | 1979-11-20 |
Family
ID=13066154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5780678A Pending JPS54148473A (en) | 1978-05-15 | 1978-05-15 | Cathode-ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54148473A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4990824A (en) * | 1987-04-03 | 1991-02-05 | U.S. Philips Corporation | Color cathode ray tube having interference filter with different pass bands |
US5121030A (en) * | 1989-05-03 | 1992-06-09 | Honeywell Inc. | Absorption filters for chlor display devices |
-
1978
- 1978-05-15 JP JP5780678A patent/JPS54148473A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4990824A (en) * | 1987-04-03 | 1991-02-05 | U.S. Philips Corporation | Color cathode ray tube having interference filter with different pass bands |
US5121030A (en) * | 1989-05-03 | 1992-06-09 | Honeywell Inc. | Absorption filters for chlor display devices |
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