申请人:Japan Science and Technology Agency
公开号:EP1809077A2
公开(公告)日:2007-07-18
Disclosed is an organic EL device comprising an electroluminescent layer having a single layer or a multilayered structure of two or more layers, the electroluminescent layer containing a pyridine derivative represented by the formula (1):
wherein Ar1 represents an aryl group, m represents an integer of 1 to 5, Φ represents a group represented by the formula (1a) :
(wherein Ar2 represents an aryl group, and p represents an integer of 1 to 5),
or the formula (1b):
(wherein Ar3 represents an aryl group, and q represents an integer of 1 to 5), and n represents an integer of 0 to 2. The organic EL device is excellent in luminescent efficiency, luminance and durability, and emits blue light with improved luminescent efficiency and luminance, which are the same as those of other colors, and is also is excellent in durability.
本发明公开了一种有机电致发光器件,该器件包括具有单层或两层或多层结构的电致发光层,该电致发光层含有由式(1)表示的吡啶衍生物:
其中 Ar1 代表芳基,m 代表 1 至 5 的整数,Φ 代表由式(1a)表示的基团:
(其中 Ar2 代表芳基,p 代表 1 至 5 的整数)、
或式 (1b):
(该有机 EL 器件在发光效率、亮度和耐久性方面都非常出色,发出的蓝光的发光效率和亮度都有所提高,与其他颜色的发光效率和亮度相同,而且耐久性也非常出色。