EP 0211963 B1 19900822 - COLOR CATHODE RAY TUBE AND COMPONENT THEREOF AND METHOD OF MANUFACTURING SAME
Title (en)
COLOR CATHODE RAY TUBE AND COMPONENT THEREOF AND METHOD OF MANUFACTURING SAME
Publication
Application
Priority
US 53800383 A 19830930
Abstract (en)
[origin: EP0211963A2] A novel color selection electrode assembly is utilized in screening a pattern of phosphor areas upon the faceplate of a color cathode ray tube. The faceplate, which is formed of a material having a predetermined temperature coefficient of expansion, has registration affording means. The aforesaid assembly comprises an auxiliary mount formed of a material having a temperature coefficient of expansion greater than that of the faceplate and has a central opening of such span as to enable the mount to surround the periphery of the faceplate. Index bosses, cooperable with the faceplate registration affording means, are detachably secured to the mount. A planar metal foil having a predetermined pattern of apertures and formed of a material having a temperature coefficient of expansion not greater than that of the mount is secured to the mount. The index bosses cooperate with the registration affording means on the envelope to permit repeated precise registrations between the foil and the faceplate to facilitate screening of the phosphor pattern as well as to facilitate mating of the electrode assembly to the faceplate. Finally, the invention contemplates a method of utilizing the electrode assembly for screening a phosphor pattern as well as methods of making a color cathode by tube having such an electrode assembly.
IPC 1-7
IPC 8 full level
H01J 29/02 (2006.01); H01J 9/22 (2006.01); H01J 9/227 (2006.01); H01J 9/26 (2006.01); H01J 29/07 (2006.01)
CPC (source: EP KR)
H01J 9/227 (2013.01 - KR); H01J 9/2271 (2013.01 - EP); H01J 9/263 (2013.01 - EP); H01J 29/07 (2013.01 - EP)
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0211963 A2 19870304; EP 0211963 A3 19870513; EP 0211963 B1 19900822; AR 244464 A1 19931029; BR 8404926 A 19850820; CA 1222277 A 19870526; DE 3483048 D1 19900927; FI 80967 B 19900430; FI 80967 C 19900810; FI 843824 A0 19840928; FI 843824 L 19850331; JP S6095834 A 19850529; KR 850002662 A 19850515; KR 920004634 B1 19920612; MX 163469 B 19920518; SG 2291 G 19910405
DOCDB simple family (application)
EP 84111579 A 19840927; AR 29813684 A 19841001; BR 8404926 A 19840928; CA 463923 A 19840925; DE 3483048 T 19840927; FI 843824 A 19840928; JP 20612584 A 19841001; KR 840006068 A 19840929; MX 20286684 A 19840927; SG 2291 A 19910117