GB860872A - Improvements in and relating to methods for producing selective deposits on a substrate - Google Patents

Improvements in and relating to methods for producing selective deposits on a substrate

Info

Publication number
GB860872A
GB860872A GB19297/57A GB1929757A GB860872A GB 860872 A GB860872 A GB 860872A GB 19297/57 A GB19297/57 A GB 19297/57A GB 1929757 A GB1929757 A GB 1929757A GB 860872 A GB860872 A GB 860872A
Authority
GB
United Kingdom
Prior art keywords
layer
photosensitive
screen
phosphor
june
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
Application number
GB19297/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Space Systems Loral LLC
Original Assignee
Philco Ford Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philco Ford Corp filed Critical Philco Ford Corp
Publication of GB860872A publication Critical patent/GB860872A/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

860,872. Luminescent screens. PHILCO CORPORATION. June 19, 1957 [June 25, 1956], No. 19297/57. Drawing to Specification. Class 39 (1) [Also in Group XX]. In forming a luminescent screen, particularly for colour television, by the 'method in which a photosensitive layer is formed on the screen, exposed to the required phosphor pattern, and then treated to remove the unexposed portion of the photosensitive layer and its phosphor, after the initial forming of the photosensitive layer it is treated by a substance to remove therefrom a predetermined amount of the photosensitive constituent in that part of the layer furthest away from the screen. In this manner a layer is formed in which the photosensitive constituent decreases in concentration away from the screen so that on exposure the resulting hardening of the layer also decreases in the same direction thereby facilitating adherence of the phosphor when deposited in the next step of the process. The photosensitive substance may be ammonium dichromate which is leached by a denatured alcohol. Specifications 788,661 and 802,908 are referred to.
GB19297/57A 1956-06-25 1957-06-19 Improvements in and relating to methods for producing selective deposits on a substrate Expired GB860872A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US593682A US3198634A (en) 1956-06-25 1956-06-25 Method of depositing particulate solid material on selected portions of a substrate

Publications (1)

Publication Number Publication Date
GB860872A true GB860872A (en) 1961-02-15

Family

ID=24375710

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19297/57A Expired GB860872A (en) 1956-06-25 1957-06-19 Improvements in and relating to methods for producing selective deposits on a substrate

Country Status (2)

Country Link
US (1) US3198634A (en)
GB (1) GB860872A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360450A (en) * 1962-11-19 1967-12-26 American Optical Corp Method of making cathode ray tube face plates utilizing electrophoretic deposition
US3317319A (en) * 1963-06-04 1967-05-02 Rca Corp Method of depositing particulate layers
US3440080A (en) * 1965-07-07 1969-04-22 Sony Corp Cathode ray tube color screen and method of producing same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1785635A (en) * 1927-05-04 1930-12-16 Lebedenko Nikolaus Method of manufacture of photographic pictures on chromated gellayers
US2370330A (en) * 1941-08-07 1945-02-27 Scriver Smith & Zerbst Inc Photographic process
US2683769A (en) * 1950-11-27 1954-07-13 Jr Thomas A Banning Color television and the like
US2747997A (en) * 1952-10-01 1956-05-29 Eastman Kodak Co Decoration of cellulosic, metal and vitreous surfaces
US2950193A (en) * 1953-08-25 1960-08-23 Philco Corp Method of manufacturing electrical apparatus
US2790107A (en) * 1955-04-04 1957-04-23 Philco Corp Indexing strip structure for cathode ray tubes

Also Published As

Publication number Publication date
US3198634A (en) 1965-08-03

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