Global Patent Index - EP 1500308 A1

EP 1500308 A1 20050126 - DISPLAY DEVICE WITH A THIN-LAYERED ELECTROLUMINESCENT SCREEN

Title (en)

DISPLAY DEVICE WITH A THIN-LAYERED ELECTROLUMINESCENT SCREEN

Title (de)

ANZEIGEVORRICHTUNG MIT ELEKTROLUMINESZENTER DÜNNSCHICHTANZEIGE

Title (fr)

DISPOSITIF D AFFICHAGE DU TYPE ECRAN ELECTROLUMINESCENT A CO UCHES MINCES

Publication

EP 1500308 A1 20050126 (FR)

Application

EP 03740644 A 20030418

Priority

  • FR 0301259 W 20030418
  • FR 0204929 A 20020419

Abstract (en)

[origin: WO03090500A1] The invention relates to a display device with a thin-layered electroluminescent screen, comprising a first layer (3) consisting of an electroluminescent material between a second layer (2) forming a front transparent electrode and a third layer (5) comprising at least one first rear electrode (EL1). The invention is characterized by the fact that the screen comprises a fourth layer (7) behind the third layer (5), comprising an electroluminescent material, and a fifth layer (9) with at least one second rear electrode (EL2) masking a zone which is not covered by the first electrode (EL1). The invention makes it possible to display an item of information on an illuminated background of a display device.

IPC 1-7

H05B 33/12; H05B 33/26

IPC 8 full level

H05B 33/12 (2006.01); H05B 33/26 (2006.01)

CPC (source: EP)

H05B 33/12 (2013.01); H05B 33/26 (2013.01)

Citation (search report)

See references of WO 03090500A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 03090500 A1 20031030; AU 2003262392 A1 20031103; EP 1500308 A1 20050126; FR 2838857 A1 20031024; FR 2838857 B1 20050211; JP 2005527947 A 20050915; US 2005212417 A1 20050929

DOCDB simple family (application)

FR 0301259 W 20030418; AU 2003262392 A 20030418; EP 03740644 A 20030418; FR 0204929 A 20020419; JP 2003587141 A 20030418; US 51189205 A 20050526