(19)
(11) EP 1 387 343 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.07.2007 Bulletin 2007/29

(43) Date of publication A2:
04.02.2004 Bulletin 2004/06

(21) Application number: 03102129.8

(22) Date of filing: 11.07.2003
(51) International Patent Classification (IPC): 
G09G 3/28(2006.01)
 G09G 3/20(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 30.07.2002 EP 02291924

(71) Applicant: Thomson Licensing
92100 Boulogne-Billancourt (FR)

(72) Inventors:
  • Weitbruch, Sebastien
    78087 MONCHWEILER (DE)
  • Thebault, Cedric
    78050 VILLINGEN-SCHWENNINGEN (DE)
  • Doyen, Didier
    35340 LA BOUEXIERE (FR)

(74) Representative: Ruellan-Lemonnier, Brigitte 
Thomson, European Patent Operations, 46 Quai Alphonse Le Gallo
92648 Boulogne Cedex
92648 Boulogne Cedex (FR)

   


(54) Method and device for processing video data for display on a display device


(57) In order to improve the picture quality of plasma display panels and to reduce differences to present CRTs dithering is used. However, the dithering pattern may appear on the retina for some movement having a spatio-temporal period similar to those from dithering. Therefore, it is proposed to use motion vectors coming from a motion estimator (14) in order to suppress the visibility of the dithering in case of motion. Then, for the viewer the quality of moving pictures will be similar to those obtained for static pictures.







Search report