GB1135656A - Method of manufacture of phosphor arrays for cathode ray tube screens and coating compositions useful therein - Google Patents
Method of manufacture of phosphor arrays for cathode ray tube screens and coating compositions useful thereinInfo
- Publication number
- GB1135656A GB1135656A GB3542966A GB3542966A GB1135656A GB 1135656 A GB1135656 A GB 1135656A GB 3542966 A GB3542966 A GB 3542966A GB 3542966 A GB3542966 A GB 3542966A GB 1135656 A GB1135656 A GB 1135656A
- Authority
- GB
- United Kingdom
- Prior art keywords
- photo
- phosphor
- parts
- cyclic ether
- sensitive
- 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
Classifications
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/04—Chromates
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
1,135,656. Photo-sensitive materials. NATIONAL VIDEO CORP. Aug. 8, 1966 [Sept.22, 1965], No. 35429/66. Heading G2C. [Also in Division H1] In a method of manufacturing a phosphor array for a cathode ray tube screen in which at least one phosphor-containing photo-sensitive coating composition is applied to the screen, exposed to active light to harden selected areas and then developed to remove the coating from unexposed areas, a water soluble mono- or di-cyclic ether which acts as a surface-active and dispersing agent is incorporated in the photo-sensitive coating in an amount comprising at least 0À05% by weight. The cyclic ether, which may be 1,4-dioxane, tetrahydrofuran, or tetrahydropyran comprising 0À05 to 3À0% by weight, reduces the exposure and drying time and inhibits cross-contaminators between individual phosphor elements. In an example the cyclic ether was added to the blue and red phosphorcontaining compositions which were applied in turn over a green phosphor-containing composition. The photo-sensitive composition may comprise in part by weight per cent; - polyvinyl alcohol colloid, 2 to 5 parts; alkali metal or ammonium dictranate photo-sensitizer, 2 to 5 parts; phosphor particles, 18 to 25 parts; 1, 4-dioxane, 0À05 to 3 parts, deionized water, to 100%. The cyclic ether also enables organic colloids such as polyvinyl alcohol or acetate to be used which have average molecular weights of from 83,000 to 125,000.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US48940365A | 1965-09-22 | 1965-09-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1135656A true GB1135656A (en) | 1968-12-04 |
Family
ID=23943708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3542966A Expired GB1135656A (en) | 1965-09-22 | 1966-08-08 | Method of manufacture of phosphor arrays for cathode ray tube screens and coating compositions useful therein |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1564446A1 (en) |
GB (1) | GB1135656A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4399090A (en) * | 1979-10-18 | 1983-08-16 | U.S. Philips Corporation | Method of producing mouldings and layers of inorganic materials |
-
1966
- 1966-08-08 GB GB3542966A patent/GB1135656A/en not_active Expired
- 1966-09-13 DE DE19661564446 patent/DE1564446A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4399090A (en) * | 1979-10-18 | 1983-08-16 | U.S. Philips Corporation | Method of producing mouldings and layers of inorganic materials |
Also Published As
Publication number | Publication date |
---|---|
DE1564446A1 (en) | 1969-12-11 |
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