Stilbene derivative, light emitting element, light emitting device, and electronic appliance
申请人:Semiconductor Energy Laboratory Co., Ltd.
公开号:US07758972B2
公开(公告)日:2010-07-20
An object is to provide a novel substance which exhibits blue light emission with excellent color purity, and to provide a light emitting element and a light emitting device using the novel substance. A stilbene derivative represented by the general formula (G1) is provided. Note that in the general formula (G1), each of A1 and B1 represents any one of structures represented by the following general formulae (G1-1) to (G1-4). In addition, in each of the general formulae (G1-1) to (G1-4), each of R1 to R24 represents any one of hydrogen and an alkyl group having 1 to 4 carbon atoms. Such a stilbene derivative can exhibit blue light emission with excellent color purity.
提供一种新型物质,该物质具有出色的色纯度的蓝光发射,并提供使用该新型物质的发光元件和发光装置。提供了由通用式(G1)表示的一种苯乙烯衍生物。请注意,在通用式(G1)中,A1和B1中的每一个代表以下通用式(G1-1)至(G1-4)所代表的结构之一。此外,在通用式(G1-1)至(G1-4)中的每一个,R1至R24中的每一个代表氢或具有1至4个碳原子的烷基基团之一。这样的苯乙烯衍生物可以展现出具有出色色纯度的蓝光发射。