EP0217473A3 - Color cathode ray tube having improved internal magnetic shield - Google Patents

Color cathode ray tube having improved internal magnetic shield Download PDF

Info

Publication number
EP0217473A3
EP0217473A3 EP86201680A EP86201680A EP0217473A3 EP 0217473 A3 EP0217473 A3 EP 0217473A3 EP 86201680 A EP86201680 A EP 86201680A EP 86201680 A EP86201680 A EP 86201680A EP 0217473 A3 EP0217473 A3 EP 0217473A3
Authority
EP
European Patent Office
Prior art keywords
ray tube
cathode ray
magnetic shield
color cathode
internal magnetic
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
EP86201680A
Other versions
EP0217473A2 (en
EP0217473B1 (en
Inventor
Richard Irwin Brown
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.)
Philips North America LLC
Original Assignee
North American Philips Consumer Electronics 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 North American Philips Consumer Electronics Corp filed Critical North American Philips Consumer Electronics Corp
Publication of EP0217473A2 publication Critical patent/EP0217473A2/en
Publication of EP0217473A3 publication Critical patent/EP0217473A3/en
Application granted granted Critical
Publication of EP0217473B1 publication Critical patent/EP0217473B1/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
EP86201680A 1985-10-03 1986-09-30 Color cathode ray tube having improved internal magnetic shield Expired - Lifetime EP0217473B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78388585A 1985-10-03 1985-10-03
US783885 1985-10-03

Publications (3)

Publication Number Publication Date
EP0217473A2 EP0217473A2 (en) 1987-04-08
EP0217473A3 true EP0217473A3 (en) 1988-01-07
EP0217473B1 EP0217473B1 (en) 1991-01-30

Family

ID=25130704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86201680A Expired - Lifetime EP0217473B1 (en) 1985-10-03 1986-09-30 Color cathode ray tube having improved internal magnetic shield

Country Status (5)

Country Link
EP (1) EP0217473B1 (en)
JP (1) JP2588513B2 (en)
KR (1) KR870004484A (en)
CA (1) CA1270888A (en)
DE (1) DE3677310D1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69213055T2 (en) * 1991-03-08 1997-03-06 Philips Electronics Nv Color picture display tube with inner magnetic shielding cap
JP2544543B2 (en) * 1991-06-11 1996-10-16 東北学院大学 Color cathode ray tube
EP0570065B1 (en) * 1992-05-15 1996-04-10 Koninklijke Philips Electronics N.V. Colour display tube having an internal magnetic shield
EP0650180B1 (en) * 1993-10-22 1997-09-17 Koninklijke Philips Electronics N.V. Color display tube having a magnetic shield
BE1007665A3 (en) * 1993-10-22 1995-09-05 Philips Electronics Nv Colour picture tube with magnetic shielding
US6005341A (en) * 1996-10-31 1999-12-21 Lg Electronics Inc. Shield for a cathode ray tube
TW434631B (en) * 1996-11-30 2001-05-16 Lg Electronics Inc Flat cathode-ray tube
FR2824184B1 (en) * 2001-04-27 2003-09-26 Thomson Licensing Sa COLORED CATHODE TUBE WITH INTERNAL MAGNETIC SHIELD

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000902A (en) * 1977-07-01 1979-01-17 Hitachi Ltd Colour picture tube
EP0090643A2 (en) * 1982-03-31 1983-10-05 Kabushiki Kaisha Toshiba Colour cathode ray tube

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5425157A (en) * 1977-07-27 1979-02-24 Matsushita Electronics Corp Color picture tube
JPS5525157A (en) * 1978-08-11 1980-02-22 Mitsubishi Electric Corp Signal transmitter
JPS5919619B2 (en) * 1981-09-11 1984-05-08 松下電子工業株式会社 Method for manufacturing internal magnetic shield for color picture tube
JPS58178945A (en) * 1982-04-15 1983-10-20 Toshiba Corp Color picture tube
JPS5990161U (en) * 1982-12-10 1984-06-19 株式会社東芝 color picture tube

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000902A (en) * 1977-07-01 1979-01-17 Hitachi Ltd Colour picture tube
EP0090643A2 (en) * 1982-03-31 1983-10-05 Kabushiki Kaisha Toshiba Colour cathode ray tube

Also Published As

Publication number Publication date
KR870004484A (en) 1987-05-09
JPS6288245A (en) 1987-04-22
JP2588513B2 (en) 1997-03-05
EP0217473A2 (en) 1987-04-08
CA1270888A (en) 1990-06-26
EP0217473B1 (en) 1991-01-30
DE3677310D1 (en) 1991-03-07

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