Global Patent Index - EP 0249942 A2

EP 0249942 A2 19871223 - Thin film electroluminescent layer material.

Title (en)

Thin film electroluminescent layer material.

Title (de)

Dünnschicht-Elektrolumineszenzlagenmaterial.

Title (fr)

Matériau pour couche électroluminescente à film mince.

Publication

EP 0249942 A2 19871223 (EN)

Application

EP 87108638 A 19870616

Priority

JP 14147386 A 19860619

Abstract (en)

Disclosed is a thin film electroluminescent layer of a thin film electroluminescent device comprising, as a light-emitting medium, a body of a mixture of ZnS and at least one sulfide selected from MgS, CaS, SrS and BaS. The ZnS and the selected sulfide are doped with a transition metal or rare earth element which is optically active in the matrix. This EL device has good moisture resistance and weatherability and is capable of emitting a color with a high brightness.

IPC 1-7

C09K 11/56; C09K 11/61; C09K 11/84; H05B 33/14

IPC 8 full level

C09K 11/00 (2006.01); C09K 11/56 (2006.01); H05B 33/12 (2006.01); H05B 33/14 (2006.01); H05B 33/18 (2006.01)

CPC (source: EP)

H05B 33/145 (2013.01); H05B 33/18 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0249942 A2 19871223; EP 0249942 A3 19890809; FI 872713 A0 19870617; FI 872713 A 19871220; JP S63995 A 19880105

DOCDB simple family (application)

EP 87108638 A 19870616; FI 872713 A 19870617; JP 14147386 A 19860619