GB1478381A - Process for formation of pattern - Google Patents

Process for formation of pattern

Info

Publication number
GB1478381A
GB1478381A GB2651974A GB2651974A GB1478381A GB 1478381 A GB1478381 A GB 1478381A GB 2651974 A GB2651974 A GB 2651974A GB 2651974 A GB2651974 A GB 2651974A GB 1478381 A GB1478381 A GB 1478381A
Authority
GB
United Kingdom
Prior art keywords
copolymer
areas
opaque substance
opaque
coating
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
GB2651974A
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1478381A publication Critical patent/GB1478381A/en
Expired legal-status Critical Current

Links

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
    • H01J29/327—Black matrix materials
    • 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
    • G03F7/008—Azides
    • 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
    • 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
    • H01J9/2278—Application of light absorbing material, e.g. between the luminescent areas

Abstract

1478381 Luminescent screens HITACHI Ltd 14 June 1974 [25 July 1973] 26519/74 Heading H1D [Also in Division G2] Screen patterns for colour TV tubes are produced by (a) coating a photoresist layer of a water-soluble bisazide and a water-soluble acrylamide/diacetone acrylamide copolymer on the inner surface of a face plate, (b) imagewise exposing to light of only sufficient intensity and and in the presence of oxygen so that only the central exposed areas are cross-linked, (c) developing to remove all uncrosslinked area and leave dots smaller than the exposed areas, (d) coating the developed material with an opaque substance, (e) chemically removing the resist and the overlying opaque layer and (f) filling the bared areas with the desired phosphors. The opaque substance is generally carbon and the chemical removal normally carried out with an oxidant. Conditions are such that under the light exposure Schwartz child's constant p<0,76. The above process eliminates bridging between the phosphor dots and the need for a post-etching step or the use of a circular light source. Alternatively, the photoresist layer may contain the relevant phosphors so that after exposure and development, the bared areas may be filled in with an opaque substance to produce the desired screen pattern. Dot and mask dimensions are given. Screen patterns made with a material containing the copolymer specified above mixed with a vinyl pyrrolidone copolymer are disclosed in Specification 1,425,713.
GB2651974A 1973-07-25 1974-06-14 Process for formation of pattern Expired GB1478381A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8317273A JPS5220225B2 (en) 1973-07-25 1973-07-25

Publications (1)

Publication Number Publication Date
GB1478381A true GB1478381A (en) 1977-06-29

Family

ID=13794846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2651974A Expired GB1478381A (en) 1973-07-25 1974-06-14 Process for formation of pattern

Country Status (5)

Country Link
JP (1) JPS5220225B2 (en)
DE (1) DE2428252C3 (en)
FR (1) FR2238959B1 (en)
GB (1) GB1478381A (en)
NL (1) NL161612C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5556735A (en) * 1990-06-27 1996-09-17 Coates Brothers Plc Image-forming process

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4319800A (en) * 1980-03-07 1982-03-16 Triangle Pwc, Inc. Barrier for molded female power cord connector bodies
JPS6358739A (en) * 1986-08-29 1988-03-14 Hitachi Ltd Surface plate for display
JP2643155B2 (en) * 1987-07-08 1997-08-20 株式会社日立製作所 Photosensitive composition and pattern forming method using the same
JPH10301272A (en) * 1997-04-30 1998-11-13 Toyo Gosei Kogyo Kk Photosensitive composition and pattern forming method
US6020093A (en) * 1998-05-13 2000-02-01 Toyo Gosei Kogyo, Ltd. Photosensitive compounds, photosensitive resin compositions, and pattern formation method making use of the compounds or compositions
US6342330B2 (en) 1998-09-24 2002-01-29 Toyo Gosei Kogyo Co., Ltd. Photosensitive compositions and pattern formation method
KR100408201B1 (en) * 2000-04-19 2003-12-01 일동화학 주식회사 Watersoluble photoresistor polymer having azido functional group at its side chain and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5556735A (en) * 1990-06-27 1996-09-17 Coates Brothers Plc Image-forming process
US5750291A (en) * 1990-06-27 1998-05-12 Coates Brothers Plc Image-forming process

Also Published As

Publication number Publication date
NL161612C (en) 1980-02-15
NL161612B (en) 1979-09-17
DE2428252B2 (en) 1978-11-16
NL7407985A (en) 1975-01-28
JPS5220225B2 (en) 1977-06-02
DE2428252A1 (en) 1975-02-27
FR2238959B1 (en) 1977-11-04
FR2238959A1 (en) 1975-02-21
DE2428252C3 (en) 1979-07-26
JPS5033764A (en) 1975-04-01

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19940613