(19)
(11) EP 1 615 200 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.12.2007 Bulletin 2007/51

(43) Date of publication A2:
11.01.2006 Bulletin 2006/02

(21) Application number: 05105568.9

(22) Date of filing: 22.06.2005
(51) International Patent Classification (IPC): 
G09G 3/20(2006.01)
 G09G 3/28(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 09.07.2004 EP 04291751

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

(72) Inventors:
  • Weitbruch, Sébastien
    92648, BOULOGNE CEDEX (FR)
  • Thébault, Cédric
    92648, BOULOGNE CEDEX (FR)
  • Schweer, Rainer
    92648, BOULOGNE CEDEX (FR)

(74) Representative: Le Dantec, Claude 
46, Quai Alphonse Le Gallo
92100 Boulogne-Billancourt
92100 Boulogne-Billancourt (FR)

   


(54) Method and device for driving a display device with line-wise dynamic addressing


(57) The EMI spectrum of a display device is to comply with respective norms. Therefore, the clock for loading data into data drivers of a display panel is designed to be variable. Consequently, the electromagnetic radiation produced by the loading clock is broadened thereby reducing the peak amplitude. Thus, the limitations of radiation norms can be complied with.







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