EP 1010162 A1 20000621 - SCREEN CONTROL WITH CATHODES HAVING LOW ELECTRONIC AFFINITY
Title (en)
SCREEN CONTROL WITH CATHODES HAVING LOW ELECTRONIC AFFINITY
Title (de)
STEUERUNG EINER ANZEIGETAFEL MIT KATHODEN NIEDRIGER ELEKTRONENAFFINITÄT
Title (fr)
COMMANDE D'UN ECRAN A CATHODES A FAIBLE AFFINITE ELECTRONIQUE
Publication
Application
Priority
- FR 9901597 W 19990702
- FR 9808555 A 19980703
Abstract (en)
[origin: FR2780803A1] The invention concerns a control system for controlling a matrix of picture elements each comprising a cathode made of a material with low electronic affinity. Each crosspoint circuit comprises a switching device (Cti.j) associated with a cathode of a picture element and enables, by means of memory circuits (M1, M2) to connect said cathode to a current source for a time interval sufficient for all the matrix lines to be controlled and for adjusting the current conduction of the corresponding picture element. The invention is useful for controlling electronic guns and display screens.
IPC 1-7
IPC 8 full level
G09G 3/20 (2006.01); G09G 3/22 (2006.01); H01J 29/96 (2006.01); H01J 31/12 (2006.01)
CPC (source: EP KR US)
G09G 3/22 (2013.01 - EP KR US); G09G 2300/0842 (2013.01 - EP US)
Citation (search report)
See references of WO 0002183A1
Designated contracting state (EPC)
FR GB
DOCDB simple family (publication)
FR 2780803 A1 20000107; FR 2780803 B1 20021031; EP 1010162 A1 20000621; JP 2002520640 A 20020709; KR 100592203 B1 20060623; KR 20010023597 A 20010326; US 6356028 B1 20020312; WO 0002183 A1 20000113
DOCDB simple family (application)
FR 9808555 A 19980703; EP 99929382 A 19990702; FR 9901597 W 19990702; JP 2000558505 A 19990702; KR 20007002245 A 20000302; US 48571900 A 20000302