(19)
(11) EP 1 445 756 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.02.2009 Bulletin 2009/09

(43) Date of publication A2:
11.08.2004 Bulletin 2004/33

(21) Application number: 04075385.7

(22) Date of filing: 06.02.2004
(51) International Patent Classification (IPC): 
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 IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 06.02.2003 FR 0301370

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

(72) Inventors:
  • Denoyelle, Pascal
    38240 Meylan (FR)
  • Meysen, Claude
    38120 Saint Egreve (FR)
  • Guermoud, Hassan
    38500 Voiron (FR)

(74) Representative: Browaeys, Jean-Philippe et al
Thomson, Patents, 46, Quai Alphonse Le Gallo
92648 Boulogne Cedex
92648 Boulogne Cedex (FR)

   


(54) Plasma display device provided with drive means suitable for carrying out rapid charge-equalization operations


(57) Conventionally, the drive means are suitable for generating charge-equalization or reset operations, then address operations and then sustain operations: the invention relates to division of the reset operations into two successive steps:
○ a metastable space charge-generation step P1;
○ an accelerated charge-generation end step P2 during which the system operates in the mode with weak discharges between the electrodes E1, E2, serving at least for addressing.
Thanks to this division, the reset operations may be shortened and the luminous performance of the panel and/or the manufacturing yields of plasma panels may be improved.







Search report