EP 0278194 B1 19920617 - ELECTROLUMINESCENT DISPLAY DEVICE WITH MEMORY EFFECT CONTROLLED BY MULTIPLE DEPHASED SUSTAIN VOLTAGES
Title (en)
ELECTROLUMINESCENT DISPLAY DEVICE WITH MEMORY EFFECT CONTROLLED BY MULTIPLE DEPHASED SUSTAIN VOLTAGES
Publication
Application
Priority
FR 8617985 A 19861222
Abstract (en)
[origin: EP0278194A1] According to the invention, the display device comprises at least one layer having an electrooptical property with memory effect, flanked by a first (12) and a second family (18) of electrodes. The display device further comprises a generator able to generate several dephased voltages. At least one of the families (12) of electrodes is subdivided into at least two sub-families of parallel electrodes receiving respectively sustaining voltages which are phase-shifted relative to one another. This results in a noticeable reduction in electrical consumption, an improvement in manufacturing efficiency, the possibility of producing display devices of larger size and the increasing of the speed of writing an image, etc. <IMAGE>
IPC 1-7
IPC 8 full level
G09G 3/30 (2006.01)
CPC (source: EP US)
G09G 3/30 (2013.01 - EP US); G09G 2300/0885 (2013.01 - EP US); G09G 2360/148 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
FR 2608817 A1 19880624; FR 2608817 B1 19890421; DE 3779899 D1 19920723; DE 3779899 T2 19921224; EP 0278194 A1 19880817; EP 0278194 B1 19920617; JP S6433590 A 19890203; US 4963861 A 19901016
DOCDB simple family (application)
FR 8617985 A 19861222; DE 3779899 T 19871221; EP 87402944 A 19871221; JP 32164187 A 19871221; US 46465090 A 19900111