(19)
(11) EP 1 116 208 A1

(12)

(43) Date of publication:
18.07.2001 Bulletin 2001/29

(21) Application number: 00951381.3

(22) Date of filing: 13.07.2000
(51) International Patent Classification (IPC)7G09G 3/36
(86) International application number:
PCT/EP0006/684
(87) International publication number:
WO 0108/130 (01.02.2001 Gazette 2001/05)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 21.07.1999 EP 99202395
03.11.1999 EP 99203621

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

(72) Inventors:
  • KUIJK, Karel, E.
    NL-5656 AA Eindhoven (NL)
  • SCHLANGEN, Lucas, J., M.
    NL-5656 AA Eindhoven (NL)
  • HENZEN, Alexander, V.
    NL-5656 AA Eindhoven (NL)

(74) Representative: Raap, Adriaan Yde 
INTERNATIONAAL OCTROOIBUREAU B.V.,Prof. Holstlaan 6
5656 AA Eindhoven
5656 AA Eindhoven (NL)

   


(54) UNIPOLAR DRIVING OF BISTABLE CHOLESTERIC LIQUID CRYSTAL DISPLAY