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CA1009702A - Shadow mask and associated phosphor screen for color cathode ray tube - Google Patents

Shadow mask and associated phosphor screen for color cathode ray tube

Info

Publication number
CA1009702A
CA1009702A CA193,054A CA193054A CA1009702A CA 1009702 A CA1009702 A CA 1009702A CA 193054 A CA193054 A CA 193054A CA 1009702 A CA1009702 A CA 1009702A
Authority
CA
Canada
Prior art keywords
ray tube
cathode ray
shadow mask
phosphor screen
color 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.)
Expired
Application number
CA193,054A
Other versions
CA193054S (en
Inventor
Sam H. Kaplan
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 Radio 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 Zenith Radio Corp filed Critical Zenith Radio Corp
Application granted granted Critical
Publication of CA1009702A publication Critical patent/CA1009702A/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
    • H01J29/325—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 with adjacent lines
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/20—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours
    • H01J31/201—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode
    • H01J31/203—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode with more than one electron beam
    • H01J31/206—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode with more than one electron beam with three coplanar electron beams
CA193,054A 1973-06-20 1974-02-20 Shadow mask and associated phosphor screen for color cathode ray tube Expired CA1009702A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US371901A US3900757A (en) 1973-06-20 1973-06-20 Shadow mask and phosphor screen for color cathode ray tube having major axes of apertures and elements canted to beam scan direction

Publications (1)

Publication Number Publication Date
CA1009702A true CA1009702A (en) 1977-05-03

Family

ID=23465872

Family Applications (1)

Application Number Title Priority Date Filing Date
CA193,054A Expired CA1009702A (en) 1973-06-20 1974-02-20 Shadow mask and associated phosphor screen for color cathode ray tube

Country Status (2)

Country Link
US (1) US3900757A (en)
CA (1) CA1009702A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186326A (en) * 1973-06-18 1980-01-29 Matsushita Electronics Corporation Shadow mask having vertical pitch about 8/(2n-1) times horizontal pitch
DE2454520A1 (en) * 1974-05-22 1975-12-04 Gen Electric SCREEN FOR SLOTTED PERFORATED MASKS OF COLOR TELEVISION TUBES AND METHOD OF MANUFACTURING
JPS5725657A (en) * 1980-07-23 1982-02-10 Hitachi Ltd Character display color picture tube
US4766341A (en) * 1985-09-18 1988-08-23 Mitsubishi Denki Kabushiki Kaisha Color picture tube with shadow mask having alternately displaced apertures
TW544705B (en) * 2001-03-06 2003-08-01 Matsushita Electric Ind Co Ltd Color picture tube
KR100505095B1 (en) * 2002-05-31 2005-08-03 엘지.필립스 디스플레이 주식회사 Shadow mask for color gathode ray tube

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777204A (en) * 1972-03-30 1973-12-04 Gte Sylvania Inc Tri-color cathode ray tube employing a shadow mask having elongated apertures

Also Published As

Publication number Publication date
US3900757A (en) 1975-08-19

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