EP 0436997 A1 19910717 - Thin-type picture display device.
Title (en)
Thin-type picture display device.
Title (de)
Bildwiedergabeanordnung vom dünnen Typ.
Title (fr)
Dispositif de reproduction d'image du type mince.
Publication
Application
Priority
- NL 9000060 A 19900110
- NL 9001266 A 19900605
- NL 9002566 A 19901126
Abstract (en)
Picture display device having a vacuum envelope with a front wall supporting a luminescent screen at its inner side and a rear wall at a short distance therefrom, connected by side walls. The envelope accommodates a plurality of adjacent electron sources and juxtaposed, local electron ducts cooperating with these sources and having walls of substantially electrically insulating material having a secondary emission coefficient which is suitable for transporting, through vacuum, produced electrons in the form of electron currents. Means are provided to make each electron current substantially travel along a particular wall of its electron duct, as well as means for withdrawing each electron current at predetermined locations from its duct and directing it towards the luminescent screen for producing a picture composed of pixels.
IPC 1-7
IPC 8 full level
H01J 29/46 (2006.01); H01J 31/12 (2006.01)
CPC (source: EP KR)
H01J 31/12 (2013.01 - KR); H01J 31/124 (2013.01 - EP)
Citation (search report)
- [A] US 4069439 A 19780117 - ANDERSON CHARLES HAMMOND
- [A] EP 0079108 A2 19830518 - PHILIPS ELECTRONIC ASSOCIATED [GB], et al
- [AD] EP 0213839 A2 19870311 - SOURCE TECHNOLOGY INC [US]
Designated contracting state (EPC)
DE ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0436997 A1 19910717; EP 0436997 B1 19960327; CN 1053320 A 19910724; CN 1082242 C 20020403; DE 69026233 D1 19960502; DE 69026233 T2 19961010; ES 2086365 T3 19960701; JP 3068653 B2 20000724; JP H04212245 A 19920803; KR 910014989 A 19910831
DOCDB simple family (application)
EP 90203471 A 19901221; CN 91100134 A 19910107; DE 69026233 T 19901221; ES 90203471 T 19901221; JP 1277291 A 19910109; KR 910000152 A 19910108