EP0234519A3 - Front assembly for a cathode ray tube - Google Patents

Front assembly for a cathode ray tube Download PDF

Info

Publication number
EP0234519A3
EP0234519A3 EP87102413A EP87102413A EP0234519A3 EP 0234519 A3 EP0234519 A3 EP 0234519A3 EP 87102413 A EP87102413 A EP 87102413A EP 87102413 A EP87102413 A EP 87102413A EP 0234519 A3 EP0234519 A3 EP 0234519A3
Authority
EP
European Patent Office
Prior art keywords
ray tube
cathode ray
front assembly
assembly
cathode
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.)
Granted
Application number
EP87102413A
Other versions
EP0234519A2 (en
EP0234519B1 (en
Inventor
James R. Fendley
Lawrence W. Dougherty
Paul Strauss
Sam H. Kaplan
Leonard Dietch
John Jarosz
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.)
Zenith Electronics LLC
Original Assignee
Zenith Electronics LLC
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 US06/831,699 external-priority patent/US4686416A/en
Priority claimed from US06/832,493 external-priority patent/US4730143A/en
Priority claimed from US06/832,556 external-priority patent/US4695761A/en
Priority claimed from US06/835,845 external-priority patent/US4725756A/en
Priority claimed from US06/866,030 external-priority patent/US4737681A/en
Application filed by Zenith Electronics LLC filed Critical Zenith Electronics LLC
Publication of EP0234519A2 publication Critical patent/EP0234519A2/en
Publication of EP0234519A3 publication Critical patent/EP0234519A3/en
Application granted granted Critical
Publication of EP0234519B1 publication Critical patent/EP0234519B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • 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
    • 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
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H01J29/073—Mounting arrangements associated with shadow masks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0716—Mounting arrangements of aperture plate to frame or vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0722—Frame

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Prevention Of Electric Corrosion (AREA)
EP87102413A 1986-02-21 1987-02-20 Front assembly for a cathode ray tube Expired - Lifetime EP0234519B1 (en)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US831699 1986-02-21
US06/831,699 US4686416A (en) 1986-02-21 1986-02-21 Color CRT front assembly with tension mask support
US06/832,493 US4730143A (en) 1986-02-21 1986-02-21 Improved color cathode ray tube having a faceplate-mounted support structure with a welded-on high-tension foil shadow mask
US832493 1986-02-21
US06/832,556 US4695761A (en) 1986-02-21 1986-02-21 Tension shadow mask support structure
US832556 1986-02-21
US835845 1986-03-03
US06/835,845 US4725756A (en) 1986-03-03 1986-03-03 Tension mask color cathode ray tube front assembly having a stabilized mask support frame
US866030 1986-05-21
US06/866,030 US4737681A (en) 1986-05-21 1986-05-21 Support means for a tensioned foil shadow mask

Publications (3)

Publication Number Publication Date
EP0234519A2 EP0234519A2 (en) 1987-09-02
EP0234519A3 true EP0234519A3 (en) 1988-01-13
EP0234519B1 EP0234519B1 (en) 1995-07-05

Family

ID=27542249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102413A Expired - Lifetime EP0234519B1 (en) 1986-02-21 1987-02-20 Front assembly for a cathode ray tube

Country Status (9)

Country Link
EP (1) EP0234519B1 (en)
JP (1) JP2588518B2 (en)
KR (1) KR950007951B1 (en)
AR (1) AR246146A1 (en)
BR (1) BR8700849A (en)
DE (2) DE234519T1 (en)
FI (1) FI96725C (en)
HK (1) HK172695A (en)
MX (1) MX166545B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973280A (en) 1988-07-22 1990-11-27 Zenith Electronics Corporation Method and apparatus for making flat tension mask color cathode ray tubes
US5162694A (en) * 1989-10-25 1992-11-10 Zenith Electronics Corporation Segmented shadow mask support structure for flat tension mask color crt
GB2240211B (en) * 1990-01-19 1994-04-27 Samsung Electronic Devices Shadow mask frame for color picture tube
WO1996042035A1 (en) * 1995-06-12 1996-12-27 Toray Industries, Inc. Photosensitive paste, plasma display, and process for the production thereof
US6197480B1 (en) 1995-06-12 2001-03-06 Toray Industries, Inc. Photosensitive paste, a plasma display, and a method for the production thereof
US5680004A (en) * 1995-12-28 1997-10-21 Thomson Consumer Electronics, Inc. Color picture tube having an improved shadow mask-to-frame connection

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894321A (en) * 1974-01-24 1975-07-15 Zenith Radio Corp Method for processing a color cathode ray tube having a thin foil mask sealed directly to the bulb
EP0121628A1 (en) * 1983-03-03 1984-10-17 Tektronix, Inc. Cathode-ray tube having taut shadow mask
EP0143938A2 (en) * 1983-09-30 1985-06-12 Zenith Electronics Corporation Color cathode ray tube and component thereof and method of manufacturing same

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL158008B (en) 1950-04-28 Ibm HOLOGRAPHIC MEMORY.
US2905845A (en) 1955-09-27 1959-09-22 Owens Illinois Glass Co Full vision cathode ray tubes
US2842696A (en) 1955-10-06 1958-07-08 Gen Electric Color cathode ray image reproducing tube and method
US3284655A (en) 1963-06-10 1966-11-08 Hughes Aircraft Co Cathode ray tube mesh assembly supported between envelope sections
US3303536A (en) 1965-04-16 1967-02-14 Turbo Machine Co Process and apparatus for automatically producing and assembling foundry molds
US3727087A (en) 1970-11-16 1973-04-10 Corning Glass Works Means for securing planar member to cathode ray tube faceplate
JPS51137253U (en) * 1975-04-28 1976-11-05
US4045701A (en) 1976-02-02 1977-08-30 Zenith Radio Corporation Shadow mask supported by cathode ray tube faceplate
US4069567A (en) 1977-02-28 1978-01-24 Zenith Radio Corporation Method of installing a color selection electrode in a color cathode ray tube
JPS56141148A (en) 1980-04-02 1981-11-04 Mitsubishi Electric Corp Color picture tube
US4547696A (en) 1984-01-18 1985-10-15 Zenith Electronics Corporation Tension mask registration and supporting system
US4593224A (en) * 1983-09-30 1986-06-03 Zenith Electronics Corporation Tension mask cathode ray tube

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894321A (en) * 1974-01-24 1975-07-15 Zenith Radio Corp Method for processing a color cathode ray tube having a thin foil mask sealed directly to the bulb
EP0121628A1 (en) * 1983-03-03 1984-10-17 Tektronix, Inc. Cathode-ray tube having taut shadow mask
EP0143938A2 (en) * 1983-09-30 1985-06-12 Zenith Electronics Corporation Color cathode ray tube and component thereof and method of manufacturing same

Also Published As

Publication number Publication date
KR950007951B1 (en) 1995-07-21
MX166545B (en) 1993-01-18
DE3751387T2 (en) 1996-03-28
FI96725C (en) 1996-08-12
DE3751387D1 (en) 1995-08-10
DE234519T1 (en) 1988-04-28
EP0234519A2 (en) 1987-09-02
KR870008371A (en) 1987-09-26
FI870718A0 (en) 1987-02-20
BR8700849A (en) 1987-12-15
AR246146A1 (en) 1994-03-30
EP0234519B1 (en) 1995-07-05
JP2588518B2 (en) 1997-03-05
HK172695A (en) 1995-11-17
FI96725B (en) 1996-04-30
FI870718A (en) 1987-08-22
JPS62259334A (en) 1987-11-11

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