EP 0209535 B1 19900307 - DISPLAY DEVICE WITH MEMORY EFFECT COMPRISING THIN ELECTROLUMINESCENT AND PHOTOCONDUCTING LAYERS
Title (en)
DISPLAY DEVICE WITH MEMORY EFFECT COMPRISING THIN ELECTROLUMINESCENT AND PHOTOCONDUCTING LAYERS
Publication
Application
Priority
FR 8419353 A 19841218
Abstract (en)
[origin: WO8603871A1] Electroluminescent display device with memory effect wherein, according to the invention, the electroluminescent layer (44) and the photoconducting layer (46) are thin layers. The assembly is interleaved between two electrode systems (42, 48) connected to a voltage source (50). Application to the making of display screens.
IPC 1-7
IPC 8 full level
G09F 9/30 (2006.01); G09G 3/30 (2006.01); H05B 33/12 (2006.01); H05B 33/22 (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 NL
DOCDB simple family (publication)
WO 8603871 A1 19860703; DE 3576422 D1 19900412; EP 0209535 A1 19870128; EP 0209535 B1 19900307; FR 2574972 A1 19860620; FR 2574972 B1 19870327; JP H0665160 B2 19940822; JP S62501180 A 19870507; US 4808880 A 19890228
DOCDB simple family (application)
FR 8500361 W 19851211; DE 3576422 T 19851211; EP 86900157 A 19851211; FR 8419353 A 19841218; JP 50014485 A 19851211; US 90534586 A 19860813