Electroluminescence device

H - Electricity – 05 – B

Patent

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Details

H05B 33/14 (2006.01) C09K 11/00 (2006.01) C09K 11/08 (2006.01) C09K 11/67 (2006.01) H05B 33/04 (2006.01) H05B 33/20 (2006.01) H05B 33/22 (2006.01)

Patent

CA 2475961

Over a back electrode (1), a sealing polymer layer (3) of low water- permeability serving as an insulating layer, dielectric cells (9) containing phosphor particles (7) buired in a binder (5) of low leakage current and high dielectric constant, a binder layer (11), and a transparent conductive layer (13) of ITO are provided in a multilayer structure and a transparent protective film (15) of a PET film is lastly formed on the transparent protective layer (13). A light-emitting layer is composed of the dielectric cells (9). The phosphor particles (7) contained in the light-emitting layer are made of tin, sulfur, manganese, copper, silicon, and titanium. The content ratio of zinc is 1, that of sulfur 3.1, that of manganese 0.3, that of copper 0.7, that of silicon 3.5, and that of titanium 5.6. The sum thereof is 14.2.

Sur une électrode arrière (1), une couche de polymère de scellement (3) faiblement perméable à l'eau, servant de couche isolante, des cellules diélectriques (9) contenant des particules de phosphore (7) enfouies dans un liant (5) à faible courant de fuite et à constante diélectrique élevée, une couche de liant (11), et une couche conductrice transparente (13) d'ITO sont prévues dans une structure multicouche et une pellicule protectrice transparente (15) en PET est formée sur ladite couche protectrice transparente (13). Une couche luminescente est constituée de cellules diélectriques (9). Les particules de phosphore (7) contenues dans la couche luminescente sont formées d'étain, de soufre, de manganèse, de cuivre, de silicium et de titane. La teneur en zinc est de 1, celle en soufre de 3,1, celle en manganèse de 0,3, celle en cuivre de 0,7, celle en silicium de 3,5 et celle en titane de 5,6, la somme étant de 14,2.

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