(19)
(11) EP 1 068 030 A1

(12)

(43) Date of publication:
17.01.2001 Bulletin 2001/03

(21) Application number: 99914985.9

(22) Date of filing: 25.03.1999
(51) International Patent Classification (IPC)7: B05D 5/06, H01J 1/62
(86) International application number:
PCT/US9906/292
(87) International publication number:
WO 9949/989 (07.10.1999 Gazette 1999/40)
(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: 27.03.1998 US 79638 P
23.02.1999 US 256592

(71) Applicant: THE OHIO STATE UNIVERSITY
Columbus,OH 43210-1063 (US)

(72) Inventors:
  • EPSTEIN, Arthur, J.
    Bexley, OH 43209 (US)
  • WANG, Yunzhang
    Columbus, OH 43214 (US)
  • MEGDADI, Farideh
    A-8010 Graz (AT)

(74) Representative: Becker Kurig Straus 
PatentanwälteBavariastrasse 7
80336 München
80336 München (DE)

   


(54) VOLTAGE CONTROLLED COLOR VARIABLE LIGHT-EMITTING DEVICES FEATURING MULTILAYERS OF DISCRETE POLYMER LAYERS AND MOLECULAR/OLIGOMER LAYERS