ATE365973T1 - CATHODE RAY TUBE AND ELECTRON CANNON - Google Patents

CATHODE RAY TUBE AND ELECTRON CANNON

Info

Publication number
ATE365973T1
ATE365973T1 AT03077137T AT03077137T ATE365973T1 AT E365973 T1 ATE365973 T1 AT E365973T1 AT 03077137 T AT03077137 T AT 03077137T AT 03077137 T AT03077137 T AT 03077137T AT E365973 T1 ATE365973 T1 AT E365973T1
Authority
AT
Austria
Prior art keywords
electrode
ray tube
cathode ray
electron beam
triode
Prior art date
Application number
AT03077137T
Other languages
German (de)
Inventor
Heidrun Steinhauser
Jan Snel
Original Assignee
Lg Philips Displays Nl
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 Lg Philips Displays Nl filed Critical Lg Philips Displays Nl
Application granted granted Critical
Publication of ATE365973T1 publication Critical patent/ATE365973T1/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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/48—Electron guns
    • H01J2229/4844—Electron guns characterised by beam passing apertures or combinations
    • H01J2229/4848—Aperture shape as viewed along beam axis

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

A cathode ray tube comprises an electron gun (10) with a main lens (ML) section and a triode section. The triode section (T) comprises a first (G1), second (G2) and third (G3) electrode, the first electrode facing a cathode. The triode section is arranged such that in operation a cross-over (X) in the electron beam is formed in the frame (y) direction, while no cross-over is formed in the line (x) direction. The first electrode (G1) has an elongated aperture facing the cathode having an aspect ratio (y/x) between 0.35 and 0.60 (0.35≤y(G1)/x(G1)≤0.6). The second electrode (G2) has an aperture facing the first electrode triode wherein x(G2A)<x(G1) and y(G2A)>y(G1) and the dimension of the electron beam in the main lens portion in the frame (y) direction is less than 1/2 of the dimension of the electron beam in the line (x) direction (y(ML)/x((ML)≤0.5). <IMAGE>
AT03077137T 2003-07-08 2003-07-08 CATHODE RAY TUBE AND ELECTRON CANNON ATE365973T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03077137A EP1496538B1 (en) 2003-07-08 2003-07-08 Cathode ray tube and electron gun

Publications (1)

Publication Number Publication Date
ATE365973T1 true ATE365973T1 (en) 2007-07-15

Family

ID=33442806

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03077137T ATE365973T1 (en) 2003-07-08 2003-07-08 CATHODE RAY TUBE AND ELECTRON CANNON

Country Status (3)

Country Link
EP (1) EP1496538B1 (en)
AT (1) ATE365973T1 (en)
DE (1) DE60314616D1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8204185A (en) * 1982-10-29 1984-05-16 Philips Nv CATHED BEAM TUBE.
JPH076707A (en) * 1993-06-21 1995-01-10 Matsushita Electron Corp Color picture tube device
JPH1167120A (en) * 1997-08-25 1999-03-09 Sony Corp Electron gun for color cathode-ray tube
JP2001084922A (en) * 1999-07-12 2001-03-30 Toshiba Corp Cathode-ray tube device

Also Published As

Publication number Publication date
EP1496538B1 (en) 2007-06-27
EP1496538A1 (en) 2005-01-12
DE60314616D1 (en) 2007-08-09

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties