ES474452A1 - Colour selection electrode with elongate apertures in a colour display tube. - Google Patents

Colour selection electrode with elongate apertures in a colour display tube.

Info

Publication number
ES474452A1
ES474452A1 ES474452A ES474452A ES474452A1 ES 474452 A1 ES474452 A1 ES 474452A1 ES 474452 A ES474452 A ES 474452A ES 474452 A ES474452 A ES 474452A ES 474452 A1 ES474452 A1 ES 474452A1
Authority
ES
Spain
Prior art keywords
colour
selection electrode
rows
display tube
elongate apertures
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
ES474452A
Other languages
Spanish (es)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES474452A1 publication Critical patent/ES474452A1/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
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H01J29/076—Shadow masks for colour television tubes characterised by the shape or distribution of beam-passing apertures

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

By using in colour display tube a colour selection electrode comprising a metal plate having a large number of rows of apertures which are separated from each other by bridges and are elongate in the direction of the rows, which rows extend in the direction of the phosphor lines on the display screen and in which the last aperture at the two ends of each row is at least as long as the penultimate aperture at the two ends of each row and the short sides of the last aperture of all rows situated at the extreme ends are situated on curved lines which follow the edge of the colour selection electrode, a smooth picture edge and also a good adhesion of the ends of the phosphor lines to the display window are obtained.
ES474452A 1977-10-26 1978-10-24 Colour selection electrode with elongate apertures in a colour display tube. Expired ES474452A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7711713A NL7711713A (en) 1977-10-26 1977-10-26 COLOR IMAGE TUBE.

Publications (1)

Publication Number Publication Date
ES474452A1 true ES474452A1 (en) 1979-10-16

Family

ID=19829406

Family Applications (1)

Application Number Title Priority Date Filing Date
ES474452A Expired ES474452A1 (en) 1977-10-26 1978-10-24 Colour selection electrode with elongate apertures in a colour display tube.

Country Status (7)

Country Link
EP (1) EP0001673B1 (en)
JP (1) JPS5471556A (en)
CA (1) CA1121857A (en)
DE (1) DE2860435D1 (en)
ES (1) ES474452A1 (en)
IT (1) IT1099429B (en)
NL (1) NL7711713A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5814735A (en) * 1981-07-20 1983-01-27 忠見　佳彦 Manufacture of interior finish material
JPS5840745A (en) * 1981-09-02 1983-03-09 Sony Corp Color cathode-ray tube
US4631440A (en) * 1985-04-29 1986-12-23 North American Philips Consumer Electronics Corp. Color cathode ray tube having smooth screen edges
GB8708574D0 (en) * 1987-04-10 1987-05-13 Philips Nv Colour cathode ray tube
US5030881A (en) * 1990-07-02 1991-07-09 Rca Licensing Corporation Color picture tube with shadow mask having improved aperture border
US5583391A (en) * 1995-11-15 1996-12-10 Thomson Consumer Electronics, Inc. Color picture tube shadow mask having improved mask aperture pattern
KR100411512B1 (en) * 1997-01-21 2004-02-14 엘지마이크론 주식회사 Method for manufacturing effective portion of shadow mask

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7200212A (en) * 1971-01-14 1972-07-18
JPS5244511B2 (en) * 1972-08-30 1977-11-08
US3766419A (en) * 1972-11-10 1973-10-16 Rca Corp Cathode-ray tube with shadow mask having random web distribution
JPS6024533B2 (en) * 1973-12-10 1985-06-13 日本電気株式会社 How to make a shadow mask
CA1065003A (en) * 1975-05-05 1979-10-23 Albert M. Morrell Cathode ray tube having improved line-screen structure

Also Published As

Publication number Publication date
DE2860435D1 (en) 1981-02-26
EP0001673A3 (en) 1979-05-16
CA1121857A (en) 1982-04-13
NL7711713A (en) 1979-05-01
IT7829012A0 (en) 1978-10-23
JPS5471556A (en) 1979-06-08
EP0001673B1 (en) 1981-01-07
IT1099429B (en) 1985-09-18
EP0001673A2 (en) 1979-05-02

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