Patent ID: 7306856
Filing Date: 2007-12-11
Classification: C07F,C09K,H01L,Y10S

Abstract:
1. A light-emitting element comprising a pair of electrodes and a light-emitting layer, or a plurality of organic compound layers containing a light-emitting layer between the pair of electrodes, wherein the light-emitting layer, or the plurality of organic compound layers containing a light-emitting layer, comprises at least one kind of compound having a partial structure represented by the following general formula K-III: wherein R wherein the light-emitting element has a light emission maximum wavelength of 420-480 nm; wherein the at least one kind of compound having the partial structure represented by general formula K-III is of the following general formula K-IV: wherein R wherein the light-emitting layer comprises at least one host material having a unit which is selected from the group consisting of a pyridine unit, a pyrazine unit, a triazine unit, and an arylsilane unit.