GB712286A - Improvements relating to luminescent screens - Google Patents
Improvements relating to luminescent screensInfo
- Publication number
- GB712286A GB712286A GB26288/52A GB2628852A GB712286A GB 712286 A GB712286 A GB 712286A GB 26288/52 A GB26288/52 A GB 26288/52A GB 2628852 A GB2628852 A GB 2628852A GB 712286 A GB712286 A GB 712286A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphor
- screen
- cells
- multicell
- colour
- 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
- 210000004027 cell Anatomy 0.000 abstract 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 4
- -1 manganese activated zinc silicate Chemical class 0.000 abstract 3
- 239000011230 binding agent Substances 0.000 abstract 2
- 210000002421 cell wall Anatomy 0.000 abstract 2
- 229910052709 silver Inorganic materials 0.000 abstract 2
- 239000004332 silver Substances 0.000 abstract 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- 239000004111 Potassium silicate Substances 0.000 abstract 1
- 239000004115 Sodium Silicate Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 230000001413 cellular effect Effects 0.000 abstract 1
- 238000010894 electron beam technology Methods 0.000 abstract 1
- 239000006194 liquid suspension Substances 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 239000011572 manganese Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052913 potassium silicate Inorganic materials 0.000 abstract 1
- 235000019353 potassium silicate Nutrition 0.000 abstract 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- UQMZPFKLYHOJDL-UHFFFAOYSA-N zinc;cadmium(2+);disulfide Chemical compound [S-2].[S-2].[Zn+2].[Cd+2] UQMZPFKLYHOJDL-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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
712,286. Luminescent screens. GENERAL ELECTRIC CO. Oct. 20, 1952 [Nov. 23, 1951], No. 26288/52. Drawings to Specification. Class 39(1), A method of manufacturing a cellular luminescent screen for a colour television receiver comprises immersing the screen in a liquid suspension of a first phosphor so that the screen is vertical to coat lower areas of the cell walls and then repeating the process with the screen still vertical but rotated to another position so as to coat further areas of the cell walls with a second phosphor. Preferably each cell is coated with three different phosphors the colour excited depending on the direction of approach of the beam. The green, red and blue phosphors may be manganese activated zinc silicate, silver activated zinc phosphate or zinc cadmium sulphide and silver activated zinc sulphide respectively and three electron beams may be used, one for' each colour as an alternative to a single beam. The phosphor is suspended in an aqueous solution containing 6 per cent of potassium or sodium silicate as binder and is poured into a flat sided vessel holding the multicell structure. A rough vacuum is applied to the vessel for about one minute to remove air from the cells and settling allowed to take place for about half an hour. The arrangement is then heated to 70C for an hour to precipitate the silicate binder, the solution siphoned out and water removed from the cells by blotting paper. Finally the multicell is dried in an oven. The other phosphors are applied in the same way the multicell being rotated 120 degrees each time. It is not necessary for the entire inner surface of each cell to be coated with phosphor. The cells may be of circular or hexagonal form.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US257751A US2659679A (en) | 1951-11-23 | 1951-11-23 | Phosphor coating process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB712286A true GB712286A (en) | 1954-07-21 |
Family
ID=22977596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26288/52A Expired GB712286A (en) | 1951-11-23 | 1952-10-20 | Improvements relating to luminescent screens |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2659679A (en) |
| FR (1) | FR1066683A (en) |
| GB (1) | GB712286A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3924212A1 (en) * | 1989-01-17 | 1990-07-19 | Pioneer Electronic Corp | LUMINESCENCE SCREEN |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2802753A (en) * | 1953-10-15 | 1957-08-13 | Rca Corp | Tri-color kinescope screen |
| US2824992A (en) * | 1955-01-17 | 1958-02-25 | Sylvania Electric Prod | Electroluminescent lamp |
| US3041228A (en) * | 1956-11-26 | 1962-06-26 | I J Mccullough | Method of making luminescent screens |
| US3098759A (en) * | 1959-05-15 | 1963-07-23 | Continental Can Co | Method for coating a honeycomb log |
| GB1015896A (en) * | 1963-11-20 | 1966-01-05 | Saunders Roe & Nuclear Entpr | Improvements in or relating to the application of phosphor coatings to limited areason the surfaces of light transparent materials associated with light sources |
| US3914464A (en) * | 1971-04-19 | 1975-10-21 | Optical Coating Laboratory Inc | Striped dichroic filter and method for making the same |
| US3873350A (en) * | 1973-02-20 | 1975-03-25 | Corning Glass Works | Method of coating honeycombed substrates |
| US4159424A (en) * | 1978-04-03 | 1979-06-26 | General Electric Company | Trapezoidal scintillator for radiation detectors |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE755947C (en) * | 1931-03-28 | 1955-08-04 | Opta Radio A G | Television transmission arrangement with Braunschweig tube |
| GB387206A (en) * | 1931-05-30 | 1933-02-02 | Siemens Ag | Improvements in or relating to apparatus for producing coloured pictures by means ofelectronic ray valves |
| US1988605A (en) * | 1931-08-20 | 1935-01-22 | Telefunken Gmbh | Luminescent screen |
| US2451590A (en) * | 1945-07-06 | 1948-10-19 | Du Mont Allen B Lab Inc | Process of forming a luminescent screen |
| US2485607A (en) * | 1945-10-26 | 1949-10-25 | Du Mont Allen B Lab Inc | Process of preparing and coating screen material on tubes |
-
1951
- 1951-11-23 US US257751A patent/US2659679A/en not_active Expired - Lifetime
-
1952
- 1952-10-20 GB GB26288/52A patent/GB712286A/en not_active Expired
- 1952-11-19 FR FR1066683D patent/FR1066683A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3924212A1 (en) * | 1989-01-17 | 1990-07-19 | Pioneer Electronic Corp | LUMINESCENCE SCREEN |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1066683A (en) | 1954-06-09 |
| US2659679A (en) | 1953-11-17 |
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