EP 1391867 A1 20040225 - Plasma display panel (PDP) - improvement of dithering noise while displaying less video levels than required
Title (en)
Plasma display panel (PDP) - improvement of dithering noise while displaying less video levels than required
Title (de)
Plasma Anzeige Paneel - Reduktion des Zitter-Rauschens bei Anzeige von weniger Video-Stufen als gefordert
Title (fr)
Ecran à plasma (PDP) - réduction du bruit de superposition pour affichage d'un signal avec un nombre réduit de niveau de gris
Publication
Application
Priority
- EP 03292006 A 20030811
- EP 02090298 A 20020823
Abstract (en)
In many cases it is not possible to reproduce enough video levels on a PDP due to timing issues or a specific solution against the false contour effect. In such cases dithering is used to render all required levels. In order to reduce the visibility of the dithering noise there is performed a common change of the sub-field organization together with a modification of the input video data through an appropriate transformation curve based on the human visual system luminance sensitivity (Weber-Fechner law). <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP)
G09G 3/2029 (2013.01); G09G 3/2051 (2013.01); G09G 3/288 (2013.01); G09G 2320/0242 (2013.01); G09G 2320/0261 (2013.01); G09G 2320/0276 (2013.01)
Citation (search report)
- [Y] WO 0245062 A2 20020606 - THOMSON LICENSING SA [FR], et al
- [AD] WO 0171702 A2 20010927 - THOMSON LICENSING SA [FR], et al
- [Y] WEITBRUCH S ET AL: "BILDQUALITAETSVERBESSERUNG DURCH CODIERUNGSOPTIMIERUNG FUER PLASMA-TV", FERNSEH UND KINOTECHNIK, VDE VERLAG GMBH. BERLIN, DE, vol. 54, no. 8/9, August 2000 (2000-08-01), pages 520 - 522,524,526, XP001078093, ISSN: 0015-0142
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 03292006 A 20030811