EP 1105911 A1 20010613 - COLOR DISPLAY DEVICE HAVING QUADRUPOLE CONVERGENCE COILS
Title (en)
COLOR DISPLAY DEVICE HAVING QUADRUPOLE CONVERGENCE COILS
Title (de)
FARBANZEIGEVORRICHTUNG MIT QUADRUPOL-KONVERGENZSPULEN
Title (fr)
DISPOSITIF D'AFFICHAGE COULEUR POSSEDANT DES BOBINES DE CONVERGENCE QUADRIPOLAIRE
Publication
Application
Priority
- EP 00943834 A 20000619
- EP 0005646 W 20000619
- EP 00201506 A 20000427
- US 33804999 A 19990622
Abstract (en)
[origin: WO0079561A1] The invention relates to a color display device comprising an in-line electron gun (5) for generating three electron beams (6,7,8), and a convergence unit (14') to dynamically influence the convergence of the electron beams and deflecting means (51) for deflecting the electron beams (6,7,8). The convergence unit (14') comprises a ring-shaped element (21'), said ring-shaped element comprising two parts, a first part (60) being positioned closer to the in-line gun (5) than a second part (68), and the first and/or the second part having four coils (22') for generating a magnetic quadrupole field.
IPC 1-7
IPC 8 full level
H01J 9/236 (2006.01); H01J 29/70 (2006.01); H01J 29/76 (2006.01)
CPC (source: EP KR)
H01J 9/236 (2013.01 - EP); H01J 29/51 (2013.01 - KR); H01J 29/705 (2013.01 - EP)
Citation (search report)
See references of WO 0079561A1
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
WO 0079561 A1 20001228; CN 1315053 A 20010926; EP 1105911 A1 20010613; JP 2003502820 A 20030121; KR 20010089166 A 20010929; TW 480524 B 20020321
DOCDB simple family (application)
EP 0005646 W 20000619; CN 00801165 A 20000619; EP 00943834 A 20000619; JP 2001505035 A 20000619; KR 20017002120 A 20010219; TW 89115044 A 20000727