(19)
(11)
EP 0 686 272 A1
(12)
(43)
Date of publication:
13.12.1995
Bulletin 1995/50
(21)
Application number:
94909739.0
(22)
Date of filing:
28.02.1994
(51)
International Patent Classification (IPC):
G02F
1/
133
( . )
G02F
1/
1343
( . )
(86)
International application number:
PCT/US1994/001857
(87)
International publication number:
WO 1994/019720
(
01.09.1994
Gazette 1994/20)
(84)
Designated Contracting States:
DE FR GB NL
(30)
Priority:
26.02.1993
US 19930023533
(71)
Applicant:
HONEYWELL INC.
Minneapolis Minnesota 55408 (US)
(72)
Inventors:
JOHNSON, Michael, J.
Phoenix, AZ 85022 (US)
TURNER, John, F.
Scottsdale, AZ 85260 (US)
(74)
Representative:
Rentzsch, Heinz, Dipl.-Ing., et al
Honeywell Holding AG, Patent- und Lizenzabteilung, Kaiserleistrasse 39
D-63067 Offenbach
D-63067 Offenbach (DE)
(54)
SELF-REFERENCED HALF-TONE LIQUID CRYSTAL DISPLAY