DE60314616D1 - Cathode ray tube and electron gun - Google Patents

Cathode ray tube and electron gun

Info

Publication number
DE60314616D1
DE60314616D1 DE60314616T DE60314616T DE60314616D1 DE 60314616 D1 DE60314616 D1 DE 60314616D1 DE 60314616 T DE60314616 T DE 60314616T DE 60314616 T DE60314616 T DE 60314616T DE 60314616 D1 DE60314616 D1 DE 60314616D1
Authority
DE
Germany
Prior art keywords
electrode
ray tube
cathode ray
electron gun
electron beam
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 - Lifetime
Application number
DE60314616T
Other languages
German (de)
Inventor
Heidrun Steinhauser
Jan Snel
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.)
LG Philips Displays Netherlands BV
Original Assignee
LG Philips Displays Netherlands BV
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 Netherlands BV filed Critical LG Philips Displays Netherlands BV
Application granted granted Critical
Publication of DE60314616D1 publication Critical patent/DE60314616D1/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
    • H01J29/46—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

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>
DE60314616T 2003-07-08 2003-07-08 Cathode ray tube and electron gun Expired - Lifetime DE60314616D1 (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
DE60314616D1 true DE60314616D1 (en) 2007-08-09

Family

ID=33442806

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60314616T Expired - Lifetime DE60314616D1 (en) 2003-07-08 2003-07-08 Cathode ray tube and electron gun

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
EP1496538A1 (en) 2005-01-12
EP1496538B1 (en) 2007-06-27
ATE365973T1 (en) 2007-07-15

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Legal Events

Date Code Title Description
8332 No legal effect for de