GB1175040A - Improvements in or relating to surface coated phosphor particles - Google Patents
Improvements in or relating to surface coated phosphor particlesInfo
- Publication number
- GB1175040A GB1175040A GB2787769A GB2787769A GB1175040A GB 1175040 A GB1175040 A GB 1175040A GB 2787769 A GB2787769 A GB 2787769A GB 2787769 A GB2787769 A GB 2787769A GB 1175040 A GB1175040 A GB 1175040A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxide
- phosphor
- particles
- coated
- heating
- 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.)
- Expired
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title abstract 6
- 239000002245 particle Substances 0.000 title abstract 6
- 238000010438 heat treatment Methods 0.000 abstract 3
- 239000000725 suspension Substances 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 2
- 239000002002 slurry Substances 0.000 abstract 2
- 229910005793 GeO 2 Inorganic materials 0.000 abstract 1
- 229910005839 GeS 2 Inorganic materials 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 229910052787 antimony Inorganic materials 0.000 abstract 1
- 229910052785 arsenic Inorganic materials 0.000 abstract 1
- 229910052796 boron Inorganic materials 0.000 abstract 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 229910052733 gallium Inorganic materials 0.000 abstract 1
- 229910052732 germanium Inorganic materials 0.000 abstract 1
- 150000004679 hydroxides Chemical class 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 229910052761 rare earth metal Inorganic materials 0.000 abstract 1
- 150000002910 rare earth metals Chemical class 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 150000003568 thioethers Chemical class 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
-
- 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
- H01J29/22—Luminescent screens characterised by the binder or adhesive for securing the luminescent material to its support, e.g. vessel
- H01J29/225—Luminescent screens characterised by the binder or adhesive for securing the luminescent material to its support, e.g. vessel photosensitive adhesive
-
- 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
- H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Luminescent Compositions (AREA)
Abstract
1,175,040. Luminescent materials. DAI NIPPON TORYO K.K. 31 Aug., 1966 [12 July, 1966], No. 27877/69. Divided out of 1,168,074. Heading C4S. Rare earth oxyacidate phosphor particles have a surface coating of acidic oxide of B, Al, V, Ga, Ge, As, Nb, Mo, Sn, Sb, Tn or W. The coating may be applied by mixing preferably in a liquid medium the phosphor and the oxide or a compound which on heating forms the oxide, e.g. hydroxides, carbonates, sulphides and NH 4 oxyacidates. The mixture is heated causing the oxide to melt, some of the oxide may diffuse on to the surface of the phosphor particle reacting to form an adhering intermediate layer. The particles may be coated by mixing the oxide suspended in an aqueous or non-aqueous dispersion and the particles and then drying. An hydroxide can first be deposited by adding a solution of the salt to a phosphor suspension and adjusting the pH value then heating to convert the hydroxide to oxide. A further method is to add the oxide to a slurry comprising an aqueous phosphor suspension and PVA. YVO 4 : Eu is coated with GeO 2 by heating a suspension of YVO 4 : Eu in GeS 2 , water and HC1. Slurries containing the coated particles were prepared using PVA and NH 4 bichromate sensitizer for photoprinting colour TV screens.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5351965 | 1965-08-31 | ||
| JP4555366 | 1966-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1175040A true GB1175040A (en) | 1969-12-23 |
Family
ID=26385562
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3895866A Expired GB1168074A (en) | 1965-08-31 | 1966-08-31 | Improvements in or relating to Surface Coated Phosphor Particles |
| GB2787769A Expired GB1175040A (en) | 1965-08-31 | 1966-11-30 | Improvements in or relating to surface coated phosphor particles |
| GB2629369A Expired GB1175039A (en) | 1965-08-31 | 1966-11-30 | Improvements in or relating to Surface Coated Phosphor Particles |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3895866A Expired GB1168074A (en) | 1965-08-31 | 1966-08-31 | Improvements in or relating to Surface Coated Phosphor Particles |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2629369A Expired GB1175039A (en) | 1965-08-31 | 1966-11-30 | Improvements in or relating to Surface Coated Phosphor Particles |
Country Status (2)
| Country | Link |
|---|---|
| GB (3) | GB1168074A (en) |
| NL (1) | NL144086B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2708619A1 (en) * | 1993-08-03 | 1995-02-10 | Futaba Denshi Kogyo Kk | Phosphorescent component |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4021588A (en) * | 1976-01-23 | 1977-05-03 | Rca Corporation | Method for preparing filter-coated phosphor particles |
| EP0025583B1 (en) * | 1979-09-14 | 1982-11-24 | Mitsubishi Materials Corporation | Electroconductive powder and process for production thereof |
| US5185207A (en) * | 1990-08-12 | 1993-02-09 | Nichia Kagaku Kogyo K.K. | Phosphor for cathode ray tube and surface treatment method for the phosphor |
| GB2255100B (en) * | 1991-03-06 | 1995-04-12 | Nichia Kagaku Kogyo Kk | Phosphor particles coated with silica and at least one of indium, zirconium and antimony for cathode-ray tube and surface treatment method for the phosphor |
| US5518808A (en) * | 1992-12-18 | 1996-05-21 | E. I. Du Pont De Nemours And Company | Luminescent materials prepared by coating luminescent compositions onto substrate particles |
| US5382452A (en) * | 1992-12-18 | 1995-01-17 | E. I. Du Pont De Nemours And Company | Luminescent materials prepared by coating luminescent compositions onto substrate particles |
| US5643674A (en) * | 1992-12-18 | 1997-07-01 | E. I. Du Pont De Nemours And Company | Luminescent materials prepared by coating luminescent compositions onto substrate particles |
| CN101899294B (en) * | 2010-06-28 | 2014-04-02 | 海洋王照明科技股份有限公司 | Fluorescent powder material and preparation method thereof |
-
1966
- 1966-08-31 NL NL6612277A patent/NL144086B/en not_active IP Right Cessation
- 1966-08-31 GB GB3895866A patent/GB1168074A/en not_active Expired
- 1966-11-30 GB GB2787769A patent/GB1175040A/en not_active Expired
- 1966-11-30 GB GB2629369A patent/GB1175039A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2708619A1 (en) * | 1993-08-03 | 1995-02-10 | Futaba Denshi Kogyo Kk | Phosphorescent component |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1592860A1 (en) | 1971-01-28 |
| DE1592860B2 (en) | 1972-08-17 |
| NL6612277A (en) | 1966-11-25 |
| GB1168074A (en) | 1969-10-22 |
| GB1175039A (en) | 1969-12-23 |
| NL144086B (en) | 1974-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) |