申请人:Universal Display Corporation
公开号:US20190319199A1
公开(公告)日:2019-10-17
A compound comprising a ligand L
A
of Formulae I, II, or III
wherein the ligand L
A
is coordinated to a transition metal M, and optionally, M is also coordinated to a ligand L
B
;
A is N, B, or CR
7
;
Y is absent, or selected from the group consisting of C(O), C(R
ya
)(R
yb
), C═C(R
ya
)(R
yb
), and Si(R
ya
)(R
yb
), where if Y of Ring A is absent then ring carbon of R
2
is bonded to N; wherein for the compounds of formula III at least one of R
2
, R
3
, and R
4
is selected from N(Ar
1
)R
N′
or aryloxy; wherein Ar
1
is selected from aryl or heteroaryl, each of which is optionally substituted. An OLED that includes an organic layer disposed between an anode and a cathode, and the organic layer includes a compound comprising a ligand L
A
of Formulae I, II, or III above. The OLED can be incorporated into one or more of a consumer product, e.g., an electronic component module, a flat panel display, e.g., a display for a phone, television, laptop, and/or a lighting panel for either commercial or residential applications.
由公式I、II或III的配体L
A
组成的化合物
其中配体L
A
与过渡金属M配位,并且可选地,M也与配体L
B
配位;
A为N、B或CR
7
;
Y为缺失,或从由C(O)、C(R
ya
)(R
yb
)、C═C(R
ya
)(R
yb
)和Si(R
ya
)(R
yb
)组成的组中选择,如果环A的Y缺失,则R
2
的环碳与N键合;其中对于公式III的化合物,至少R
2
、R
3
和R
4
中的一个选自N(Ar
1
)R
N′
或芳氧基;其中Ar
1
选自芳基或杂芳基,其中每一个都可以被选地取代。一种OLED,包括位于阳极和阴极之间的有机层,并且有机层包括具有上述公式I、II或III的配体L
A
的化合物。OLED可以集成到一个或多个消费品中,例如,电子组件模块,平板显示器,例如,电话、电视、笔记本电脑的显示器,以及/或用于商业或住宅应用的照明面板。