Patent ID: 8563968
Filing Date: 2013-10-22
Classification: C09K,H05B

Abstract:
1. An electroluminescent device comprising: a pair of electrodes; and an electroluminescent layer comprising a luminescent layer and formed between the pair of electrodes, wherein the luminescent layer comprises one or more protective materials and quantum dots whose surfaces are protected by the one or more protective materials, at least one of the protective materials has a glass transition temperature and a melting point of 130° C. or more, and the at least one protective material comprises in one molecule one or more hydrophilic residues and a hydrophobic group which is a residue of at least one compound selected from the group consisting of 4,4′,4″-tri[N-carbazoleyl]triphenylamine, 3 tert-butyl-9,10-di(naphth-2-yl)anthracene, 2,2′,7,7′-tetrakis(2,2′-diphenylvinyl)spiro-9,9′-bifluorene, 4,4′-bis(carbazole-9-yl)-9,9-dimethyl-fluorene, 4,4′-bis(carbazole-9-yl)-9,9-ditoluoyl-fluorene, 2,7-bis(9-carbazoleyl)-9,9-spirobifluorene, and tris(8-quinolinol)aluminum complexes.