EP 0384829 B1 19940720 - Multicolour electroluminescent flat panel display having a memory effect.
Title (en)
Multicolour electroluminescent flat panel display having a memory effect.
Title (de)
Mehrfarbiger Elektrolumineszenz-Flachbildschirm mit Speichereffekt.
Title (fr)
Ecran plat d'affichage polychrome électroluminescent à effet mémoire.
Publication
Application
Priority
FR 8902222 A 19890221
Abstract (en)
[origin: EP0384829A1] This screen comprises, on an insulating substrate (38), a single electroluminescent layer (34) and at least one photoconducting layer (32) stacked on top of each other. The latter two layers are sandwiched between a first system (36) of transparent electrodes and a second system (30) of electrodes, connected to an electrical unit (45) so as to excite certain regions of the electroluminescent layer. The electroluminescent layer (34) consists of a white phosphor. At least two series of colour filters (40 - 42) are placed between the electroluminescent layer (34) and the viewer. <IMAGE>
IPC 1-7
IPC 8 full level
G09F 9/33 (2006.01); G09G 3/30 (2006.01); H05B 33/12 (2006.01)
CPC (source: EP)
G09F 9/33 (2013.01); G09G 3/30 (2013.01); H05B 33/12 (2013.01); G09G 2300/0885 (2013.01); G09G 2360/148 (2013.01)
Citation (examination)
- EP 0259213 A1 19880309 - THIOULOUSE PASCAL
- SID INTERNATIONAL SYMPOSIUM, DIGEST OF TECHNICAL PAPERS Mai 1988, pages 293-296, CA, US; S. TANAKA et al.: "Bright White-Light Electroluminescent Devices with New Phosphor Thin-Films Based on Srs"
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0384829 A1 19900829; EP 0384829 B1 19940720; DE 69010712 D1 19940825; DE 69010712 T2 19950112; FR 2643488 A1 19900824; FR 2643488 B1 19940429; JP H02273496 A 19901107
DOCDB simple family (application)
EP 90400462 A 19900220; DE 69010712 T 19900220; FR 8902222 A 19890221; JP 3852290 A 19900221