GB1355308A - Photographic method for printing a screen structure for a cathode ray tube - Google Patents

Photographic method for printing a screen structure for a cathode ray tube

Info

Publication number
GB1355308A
GB1355308A GB3026072A GB3026072A GB1355308A GB 1355308 A GB1355308 A GB 1355308A GB 3026072 A GB3026072 A GB 3026072A GB 3026072 A GB3026072 A GB 3026072A GB 1355308 A GB1355308 A GB 1355308A
Authority
GB
United Kingdom
Prior art keywords
dots
screen
exposure
mils
viscosity
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
GB3026072A
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of GB1355308A publication Critical patent/GB1355308A/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
    • 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
    • G03F7/20—Exposure; Apparatus therefor
    • G03F7/2045—Exposure; Apparatus therefor using originals with apertures, e.g. stencil exposure masks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/153—Multiple image producing on single receiver

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)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)

Abstract

1355308. Luminescent screens RCA CORPORATION 28 June 1972 [28 June 1971] 30260/72 Heading H1D In the manufacture of a black matrix colour television screen wherein hardened dots are formed on the screen in positions where phosphor dots are subsequently to be deposited, the whole screen then being coated with lightabsorbing material and the dots with their overlying coating removed to leave the required matrix, the dots are formed by exposing a photo-resist through apertures in a shadow mask and the exposure is limited to make them smaller than the apertures. The thickness of the photo-resist is important and may be controlled within the range 0À1 to 0À3 mg/cm<SP>2</SP> by adjusting the viscosity within the range 9-30 centipoises at 25‹ C.; the best viscosity is 11-12 cps when maximum size reduction is required, but greater viscosity may be used if the screen is subjected to flood exposure before, during, or after the exposure through the shadow mask. The light source should be smaller than usual and may have an effective diameter of 60-130 mils, preferably 80 mils. The required reduction in diameter of the dots may vary over the screen area, e.g. from 1 mil. at the centre to 3 mils. at the corners, and this may be achieved by providing in the lighthouse used for the exposure process a filter which reduces the light intensity towards the edges.
GB3026072A 1971-06-28 1972-06-28 Photographic method for printing a screen structure for a cathode ray tube Expired GB1355308A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15750271A 1971-06-28 1971-06-28

Publications (1)

Publication Number Publication Date
GB1355308A true GB1355308A (en) 1974-06-05

Family

ID=22564016

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3026072A Expired GB1355308A (en) 1971-06-28 1972-06-28 Photographic method for printing a screen structure for a cathode ray tube

Country Status (11)

Country Link
US (1) US3788846A (en)
JP (1) JPS51421B1 (en)
KR (1) KR780000504B1 (en)
BE (1) BE785499A (en)
CA (1) CA966347A (en)
DE (1) DE2231473C3 (en)
FR (1) FR2143756B1 (en)
GB (1) GB1355308A (en)
IT (1) IT955339B (en)
NL (1) NL179322C (en)
SU (1) SU898961A3 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137138B2 (en) * 1972-01-26 1976-10-14
US4086090A (en) * 1973-07-25 1978-04-25 Hitachi, Ltd. Formation of pattern using acrylamide-diacetoneacrylamide copolymer
DE2411869C3 (en) * 1974-03-12 1982-07-08 Standard Elektrik Lorenz Ag, 7000 Stuttgart Photochemical system for coating the fluorescent screen of color television tubes
US3993516A (en) * 1974-10-07 1976-11-23 Zenith Radio Corporation Method of controlled etching in the manufacture of a color selection mask for a color cathode ray tube
US3955980A (en) * 1974-11-04 1976-05-11 Zenith Radio Corporation Method for making a color selection mask for a color cathode ray tube
US3998638A (en) * 1975-05-22 1976-12-21 Westinghouse Electric Corporation Method of developing opaquely coated sensitized matrix with a solution containing sodium meta-silicate
US4087280A (en) * 1977-03-17 1978-05-02 Corning Glass Works Method for enhancing the image contrast in color television picture tubes
US4376158A (en) * 1977-05-09 1983-03-08 Keuffel & Esser Company Color-proofing method
US4150990A (en) * 1978-01-10 1979-04-24 Gte Sylvania Incorporated Small phosphor area black matrix fabricating process
US4165396A (en) * 1978-06-19 1979-08-21 Rca Corporation Method for salvaging the light-absorbing matrix and support of a luminescent screen
US4234669A (en) * 1979-03-27 1980-11-18 Rca Corporation CRT Screen structure produced by photographic method
US4408851A (en) * 1982-05-19 1983-10-11 Rca Corporation Photographic method for printing a viewing-screen structure using a light-transmission filter
FR2547950B1 (en) * 1983-06-24 1986-01-31 Videocolor Sa METHOD FOR MANUFACTURING LOW REFLECTANCE COLOR TELEVISION TUBE OF THE SCREEN FOR AMBIENT LIGHT AND TUBE OBTAINED THEREBY
US4517224A (en) * 1983-08-18 1985-05-14 Rca Corporation Method for removing a phosphor layer from a support surface
JPH0618103B2 (en) * 1983-10-31 1994-03-09 ソニー株式会社 Method for producing fluorescent surface of cathode ray tube
JPS6166334A (en) * 1984-09-06 1986-04-05 Sony Corp Manufacture of cathode-ray tube and photosensitive phosphor paste
DE3539572A1 (en) * 1985-11-08 1987-05-14 Licentia Gmbh Process for producing a masking matrix
US4746588A (en) * 1985-11-25 1988-05-24 Rca Corporation Method for preparing a photosensitive film on a glass surface
US4778738A (en) * 1986-08-14 1988-10-18 RCA Licensing Method for producing a luminescent viewing screen in a focus mask cathode-ray tube
US4990417A (en) * 1987-02-23 1991-02-05 Sony Corporation Method of manufacturing a cathode ray tube
JP2008532737A (en) * 2005-02-16 2008-08-21 スリーエム イノベイティブ プロパティズ カンパニー Method for producing a morphologically patterned coating
BRPI0608156A2 (en) * 2005-02-16 2017-05-23 3M Innovative Properties Co method for a topographically standardized coating
CN105551912A (en) * 2015-12-21 2016-05-04 陈艳 Internal coating technology for helical energy-saving lamp tube

Also Published As

Publication number Publication date
FR2143756A1 (en) 1973-02-09
KR780000504B1 (en) 1978-10-25
NL179322B (en) 1986-03-17
JPS51421B1 (en) 1976-01-08
IT955339B (en) 1973-09-29
CA966347A (en) 1975-04-22
NL179322C (en) 1986-08-18
DE2231473B2 (en) 1975-10-16
DE2231473A1 (en) 1973-01-18
DE2231473C3 (en) 1980-01-31
FR2143756B1 (en) 1977-07-22
BE785499A (en) 1972-10-16
SU898961A3 (en) 1982-01-15
US3788846A (en) 1974-01-29
NL7208839A (en) 1973-01-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years