发明名称 |
Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device |
摘要 |
A light-emitting element emitting phosphorescence and having high emission efficiency, in which a property of injecting holes to a light-emitting layer is increased, is provided. The light-emitting layer of the light-emitting element includes a first organic compound represented by the following general formula (G1) and a second organic compound which is a phosphorescent compound. The difference between the HOMO level of the first organic compound and the HOMO level of the second organic compound is lower than or equal to 0.3 eV.; |
申请公布号 |
US2017125705(A1) |
申请公布日期 |
2017.05.04 |
申请号 |
US201615350822 |
申请日期 |
2016.11.14 |
申请人 |
Semiconductor Energy Laboratory Co., Ltd. |
发明人 |
Nakayama Tomonori;Takasu Takako;Shitagaki Satoko;Osaka Harue;Hamada Toshiki |
分类号 |
H01L51/00;C09K11/02;C09K11/06;C07D487/14 |
主分类号 |
H01L51/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. (canceled) |
地址 |
Kanagawa-ken JP |