Stilbene derivatives, light-emitting element, display device, and electronic device
申请人:Semiconductor Energy Laboratory Co., Ltd.
公开号:US07732619B2
公开(公告)日:2010-06-08
A novel stilbene derivative is provided with motivation of providing a blue emissive material showing excellent color purity. The use of the stilbene derivative of the present invention allows the fabrication of a blue-emissive light-emitting element with excellent color purity. The invention also includes an electronic device equipped with a display portion in which the stilbene derivative is employed. The stilbene derivative of the present invention is represented by formula (1), in which Ar1 and Ar2 may form a 5-membered ring by being directly bonded to each other. In formula (1), A11 represents any one of substituents represented by general formulas (1-1) to (1-3). The variables shown in formula (1) and (1-1) to (1-3) are as defined in the specification.
提供了一种新型的联苯衍生物,其动机是提供一种显示出优异色纯度的蓝色发光材料。本发明的联苯衍生物的使用使得可以制备具有优异色纯度的蓝色发光元件。该发明还包括一种电子设备,其中显示部分采用了该联苯衍生物。本发明的联苯衍生物由式(1)表示,其中Ar1和Ar2可以通过直接键合形成一个5-成员环。在式(1)中,A11代表由一般式(1-1)至(1-3)表示的取代基中的任意一个。式(1)和(1-1)至(1-3)中所示的变量如规范中定义的那样。