JPS57126045A - Color video tube - Google Patents
Color video tubeInfo
- Publication number
- JPS57126045A JPS57126045A JP1335981A JP1335981A JPS57126045A JP S57126045 A JPS57126045 A JP S57126045A JP 1335981 A JP1335981 A JP 1335981A JP 1335981 A JP1335981 A JP 1335981A JP S57126045 A JPS57126045 A JP S57126045A
- Authority
- JP
- Japan
- Prior art keywords
- blue
- phosphor
- green
- red
- color video
- 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
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910002804 graphite Inorganic materials 0.000 abstract 2
- 239000010439 graphite Substances 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052693 Europium Inorganic materials 0.000 abstract 1
- 239000011358 absorbing material Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000003086 colorant Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- -1 europium activated oxysulphide Chemical class 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- WTFXARWRTYJXII-UHFFFAOYSA-N iron(2+);iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Fe+2].[Fe+3].[Fe+3] WTFXARWRTYJXII-UHFFFAOYSA-N 0.000 abstract 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
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
- H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
- H01J29/32—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television
- H01J29/327—Black matrix materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/22—Applying luminescent coatings
- H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
- H01J9/2278—Application of light absorbing material, e.g. between the luminescent areas
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
PURPOSE:To provide less costly color video tubes offering a sharp contrast by coating only a blue color phosphor with a black color absorbing material. CONSTITUTION:Gold, copper, aluminum activated blende green phosphor,siver activated blende blue phosphor coated with 1.0wt% graphite, and europium activated oxysulphide yttirium red phosphor were covered with green, blue and red luminous elements by means of the known photoprinting method and formed to produce a sharp contrast color video tube according to the present invention. Blue luminous phosphor coated a 2.0wt% black iron oxide in place of graphite was used. As a result, in comparison with the conventional sharp contrast color video tubes, the brightness of the blue luminous element was 80%, while its contrast was equal. The current contributory ratios of green, blue and red colors were respectively 38%, 32% and 30%, which had been considerable improved comparing with 40%, 27%, 33% before. 1, 2, and 3 in the figure represent green, blue and red luminous elements; while 4, 5 and 6 are a black matrix, phosphor and a pigment, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1335981A JPS57126045A (en) | 1981-01-29 | 1981-01-29 | Color video tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1335981A JPS57126045A (en) | 1981-01-29 | 1981-01-29 | Color video tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57126045A true JPS57126045A (en) | 1982-08-05 |
Family
ID=11830896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1335981A Pending JPS57126045A (en) | 1981-01-29 | 1981-01-29 | Color video tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57126045A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0361650A2 (en) * | 1988-09-29 | 1990-04-04 | Samsung Display Devices Co., Ltd. | Green light emitting phosphor |
| DE4135314C2 (en) * | 1990-10-31 | 2002-03-07 | Samsung Electronic Devices | Black matrix material for a color cathode ray tube |
-
1981
- 1981-01-29 JP JP1335981A patent/JPS57126045A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0361650A2 (en) * | 1988-09-29 | 1990-04-04 | Samsung Display Devices Co., Ltd. | Green light emitting phosphor |
| DE4135314C2 (en) * | 1990-10-31 | 2002-03-07 | Samsung Electronic Devices | Black matrix material for a color cathode ray tube |
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