(19)
(11) EP 1 085 496 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.08.2002 Bulletin 2002/32

(43) Date of publication A2:
21.03.2001 Bulletin 2001/12

(21) Application number: 00307755.9

(22) Date of filing: 08.09.2000
(51) International Patent Classification (IPC)7G09G 3/32
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 13.09.1999 JP 25889899

(71) Applicant: Sanyo Electric Co., Ltd.
Moriguchi-shi, Osaka-fu 570-8677 (JP)

(72) Inventors:
  • Tsujioka, Tsuyoshi
    Moriguchi-shi, Osaka-fu 570-8677 (JP)
  • Hamada, Yuji
    Moriguchi-shi, Osaka-fu 570-8677 (JP)

(74) Representative: Calderbank, Thomas Roger et al
MEWBURN ELLIS York House 23 Kingsway
London WC2B 6HP
London WC2B 6HP (GB)

   


(54) Driving method and drive for organic electroluminescence element and display employing the same


(57) A drive pulse application circuit applies a drive pulse alternately changing between a first voltage higher than a luminescence starting voltage and a second voltage higher than 0 V and not more than the luminescence starting voltage across a hole injection electrode and an electron injection electrode of an organic EL element.







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