WO1992012525A3 - Tension mask color crt with a curved faceplate - Google Patents

Tension mask color crt with a curved faceplate Download PDF

Info

Publication number
WO1992012525A3
WO1992012525A3 PCT/US1991/009583 US9109583W WO9212525A3 WO 1992012525 A3 WO1992012525 A3 WO 1992012525A3 US 9109583 W US9109583 W US 9109583W WO 9212525 A3 WO9212525 A3 WO 9212525A3
Authority
WO
WIPO (PCT)
Prior art keywords
color crt
tension mask
faceplate
mask color
curved
Prior art date
Application number
PCT/US1991/009583
Other languages
French (fr)
Other versions
WO1992012525A2 (en
Inventor
Jerry K Pearlman
Martin L Lerner
Original Assignee
Zenith 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 Zenith Electronics Corp filed Critical Zenith Electronics Corp
Publication of WO1992012525A2 publication Critical patent/WO1992012525A2/en
Publication of WO1992012525A3 publication Critical patent/WO1992012525A3/en

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
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0722—Frame

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

A color cathode ray tube has a faceplate with curved inner surface and a curved outer surface. A tensed shadow mask is located adjacent to the inner surface and secured to discrete mask support rails affixed to said inner surface. The said rails have a curvature related to the curvature of the faceplate inner surface.
PCT/US1991/009583 1991-01-02 1991-12-18 Tension mask color crt with a curved faceplate WO1992012525A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US63679791A 1991-01-02 1991-01-02
US636,797 1991-01-02

Publications (2)

Publication Number Publication Date
WO1992012525A2 WO1992012525A2 (en) 1992-07-23
WO1992012525A3 true WO1992012525A3 (en) 1992-08-20

Family

ID=24553362

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/009583 WO1992012525A2 (en) 1991-01-02 1991-12-18 Tension mask color crt with a curved faceplate

Country Status (2)

Country Link
EP (1) EP0565643A1 (en)
WO (1) WO1992012525A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3468344B2 (en) 1998-02-26 2003-11-17 松下電器産業株式会社 Color picture tube

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2842696A (en) * 1955-10-06 1958-07-08 Gen Electric Color cathode ray image reproducing tube and method
US3440469A (en) * 1966-09-01 1969-04-22 Georges Bradu Flat screen attachment inside cathoderay tube by snap ring and clip assembly
US3638063A (en) * 1968-01-11 1972-01-25 Sony Corp Grid structure for color picture tubes
US4695761A (en) * 1986-02-21 1987-09-22 Zenith Electronics Corporation Tension shadow mask support structure
US4891546A (en) * 1988-11-10 1990-01-02 Zenith Electronics Corporation Front assembly for a tension mask color cathode ray tube having a laser-deflecting shadow mask support structure
US4942332A (en) * 1988-12-02 1990-07-17 Zenith Electronics Corporation Tied slit mask for color cathode ray tubes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2842696A (en) * 1955-10-06 1958-07-08 Gen Electric Color cathode ray image reproducing tube and method
US3440469A (en) * 1966-09-01 1969-04-22 Georges Bradu Flat screen attachment inside cathoderay tube by snap ring and clip assembly
US3638063A (en) * 1968-01-11 1972-01-25 Sony Corp Grid structure for color picture tubes
US4695761A (en) * 1986-02-21 1987-09-22 Zenith Electronics Corporation Tension shadow mask support structure
US4891546A (en) * 1988-11-10 1990-01-02 Zenith Electronics Corporation Front assembly for a tension mask color cathode ray tube having a laser-deflecting shadow mask support structure
US4942332A (en) * 1988-12-02 1990-07-17 Zenith Electronics Corporation Tied slit mask for color cathode ray tubes

Also Published As

Publication number Publication date
EP0565643A1 (en) 1993-10-20
WO1992012525A2 (en) 1992-07-23

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