(19)
(11) EP 1 676 258 A1

(12)

(43) Date of publication:
05.07.2006 Bulletin 2006/27

(21) Application number: 04770254.3

(22) Date of filing: 14.10.2004
(51) International Patent Classification (IPC): 
G09G 3/34(1980.01)
(86) International application number:
PCT/IB2004/052092
(87) International publication number:
WO 2005/038765 (28.04.2005 Gazette 2005/17)
(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 PL PT RO SE SI SK TR

(30) Priority: 16.10.2003 US 511691 P

(71) Applicant: Koninklijke Philips Electronics N.V.
5621 BA Eindhoven (NL)

(72) Inventors:
  • ZHOU, Guofu
    NL-5621 BA Eindhoven (NL)
  • KAMER, Jan Van De
    NL-5621 BA Eindhoven (NL)
  • JOHNSON, Mark, T.
    NL-5621 BA Eindhoven (NL)
  • AILENEI, Neculai
    NL-5621 BA Eindhoven (NL)

(74) Representative: Rolfes, Johannes Gerardus Albertus 
Philips Intellectual Property & Standards P.O. Box 220
5600 AE Eindhoven
5600 AE Eindhoven (NL)

   


(54) LOOK-UP TABLES WITH GRAYLEVEL TRANSITION WAVEFORMS FOR BI-STABLE DISPLAY