GB1435596A - Method and apparatus for making colour cathode-ray tubes - Google Patents

Method and apparatus for making colour cathode-ray tubes

Info

Publication number
GB1435596A
GB1435596A GB3866773A GB3866773A GB1435596A GB 1435596 A GB1435596 A GB 1435596A GB 3866773 A GB3866773 A GB 3866773A GB 3866773 A GB3866773 A GB 3866773A GB 1435596 A GB1435596 A GB 1435596A
Authority
GB
United Kingdom
Prior art keywords
source
mask
screen
aug
reduced
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
GB3866773A
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co 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
Priority claimed from JP8283272A external-priority patent/JPS5222228B2/ja
Priority claimed from JP8371172A external-priority patent/JPS4940666A/ja
Application filed by Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of GB1435596A publication Critical patent/GB1435596A/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)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

1435596 Luminescent screens TOKYO SHIBAURA ELECTRIC CO Ltd 16 Aug 1973 [21 Aug 1972 23 Aug 1972] 38667/73 Heading H1D A method of making a striped cathodoluminescent screen for a colour c.r.t. comprises irradiating a concave shadow mask having elongate apertures separated by bridge portions using a source of sufficient effective length to produce on a radiation sensitive film a continuous image for each row regardless of bridge portions, and vibrating the source in a direction having at least a component perpendicular toits longitudinal axis to at least partially compensate for diffraction. The guns may be "inline" and the phosphor stripes separated by light absorber and narrowing at screen ends horizontally from the centre. Three types of irregularities are considered: (i) those appearing in all parts of the screen, (ii) those appearing gradually in the corners due to non-parallelism of source and mask at all points and/or (iii) those appearing opposite the mask bridging portions, these being discussed in relation to source dimensions. Some compensations require a source width > 1 mm. which produces diffraction i.e. a type (i) irregularity (Figs. 6, 7, not shown) which is reduced by the source vibration (Fig. 9, not shown). Fig. 10 (not shown) includes high P Hg source (54), slender window (55), pivoted arms (56-58) and cam (60) producing the vibrations. Type (ii) uneveness may be reduced by inclining the source to the mean value of the inclinations (cf. Fig. 11, not shown) for each elementary area (65) (Fig. 12, not shown), e.g. byapparatus (Fig. 13, not shown) with shield (68) with end on elongate slit (67) and moved along the Y-axis by motor (69) and lever (71), light source (35) being synchronously inclined about shaft (74) so that source and area (65) remain parallel. Figs. 10 and 13 apparatus are combined in practice. Type (iii) uneveness may be substantially eliminated by sources with windows as in Figs. 14A-14C (not shown). Absorbing and phosphor stripes may be laid in either sequence and a shadow mask with reduced apertures may be used for screen fabrication. Mask, stripe and source dimensions and vibrating amplitudes and periods are given.
GB3866773A 1972-08-21 1973-08-16 Method and apparatus for making colour cathode-ray tubes Expired GB1435596A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8283272A JPS5222228B2 (en) 1972-08-21 1972-08-21
JP8371172A JPS4940666A (en) 1972-08-23 1972-08-23

Publications (1)

Publication Number Publication Date
GB1435596A true GB1435596A (en) 1976-05-12

Family

ID=26423854

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3866773A Expired GB1435596A (en) 1972-08-21 1973-08-16 Method and apparatus for making colour cathode-ray tubes

Country Status (5)

Country Link
US (1) US3888673A (en)
DE (1) DE2342110C2 (en)
FR (1) FR2197229B1 (en)
GB (1) GB1435596A (en)
NL (1) NL177864C (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1027675A (en) * 1974-05-30 1978-03-07 Paul E. Stuckert Mask-exposure scheme
US3954470A (en) * 1975-03-13 1976-05-04 Gte Sylvania Incorporated Process for fabricating a color cathode ray tube
NL7503665A (en) * 1975-03-27 1976-09-29 Philips Nv METHOD OF MANUFACTURING A CATHODE RAY TUBE FOR DISPLAYING COLORED IMAGES.
NL7510272A (en) * 1975-09-01 1977-03-03 Philips Nv PROCEDURE FOR MANUFACTURE OF A CATHODE RAY TUBE FOR DISPLAYING COLORED IMAGES AND CATHOD RAY TUBE MADE IN ACCORDANCE WITH THIS PROCESS.
US4046474A (en) * 1975-11-17 1977-09-06 Rockwell International Corporation Black-body wafer support fixture for exposure of photoresist
NL7515224A (en) * 1975-12-31 1977-07-04 Philips Nv EXPOSURE DEVICE FOR MANUFACTURE OF CATHODE BEAM TUBES FOR DISPLAYING COLORED IMAGES AND CATHODE BEAM TUBE MADE WITH SUCH DEVICE.
US4053904A (en) * 1976-06-23 1977-10-11 Gte Sylvania Incorporated Overlap and overscan exposure control system
NL7704130A (en) * 1977-04-15 1978-10-17 Philips Nv COLOR IMAGE TUBE.
JPS5465602A (en) * 1977-11-01 1979-05-26 Dainippon Screen Mfg Method of scanning and recording halftone image
JPS54154339A (en) * 1978-05-26 1979-12-05 Hitachi Ltd Prism for fluorescent screen exposure
US4475797A (en) * 1982-07-30 1984-10-09 Zenith Electronics Corporation Color cathode ray tube screening exposure method and apparatus
US4568162A (en) * 1983-08-19 1986-02-04 Rca Corporation Method for screening line screen slit mask color picture tubes
US4516841A (en) * 1983-08-19 1985-05-14 Rca Corporation Method for screening line screen slit mask color picture tubes
IN165336B (en) * 1985-03-14 1989-09-23 Rca Corp
US4634247A (en) * 1985-12-19 1987-01-06 Rca Corporation Method for screening line screen slit mask color picture tubes
KR200155319Y1 (en) * 1995-09-25 1999-09-01 손욱 Exposuring device for manufacturing color crt
JPH10269960A (en) * 1997-03-26 1998-10-09 Nec Kansai Ltd Shadow mask type color cathode-ray tube
JP2000331622A (en) * 1999-05-18 2000-11-30 Sony Corp Cathode ray tube, manufacture thereof, color selecting member for cathode ray tube, and manufacture thereof
JP2001006545A (en) * 1999-06-24 2001-01-12 Mitsubishi Electric Corp Light source device, exposure device and cathode-ray tube panel
US7153592B2 (en) * 2000-08-31 2006-12-26 Fujitsu Limited Organic EL element and method of manufacturing the same, organic EL display device using the element, organic EL material, and surface emission device and liquid crystal display device using the material

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936683A (en) * 1956-07-02 1960-05-17 Sylvania Electric Prod Cathode ray tube structure and process
US2936682A (en) * 1956-07-02 1960-05-17 Sylvania Electric Prod Device for use in processing discrete screen patterns for cathode ray tubes
NL6612852A (en) * 1966-09-13 1968-03-14
US3494267A (en) * 1966-10-03 1970-02-10 Nat Video Corp Method and means for producing color television picture tubes
US3667947A (en) * 1967-11-01 1972-06-06 Sylvania Electric Prod Color crt screen exposure method
US3736848A (en) * 1970-10-20 1973-06-05 Tokyo Shibaura Electric Co Method of preparing the screen of a colour television picture tube and device performing the method
US3725106A (en) * 1970-10-30 1973-04-03 Matsushita Electronics Corp Method and apparatus of making color cathode ray tube
DE2206427C3 (en) * 1972-02-11 1982-04-15 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Device for exposing a light-sensitive layer applied to the inner surface of a picture tube front panel

Also Published As

Publication number Publication date
DE2342110A1 (en) 1974-03-21
NL177864C (en) 1985-12-02
FR2197229A1 (en) 1974-03-22
NL177864B (en) 1985-07-01
FR2197229B1 (en) 1978-05-26
US3888673A (en) 1975-06-10
NL7311445A (en) 1974-02-25
DE2342110C2 (en) 1983-06-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930815