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公开(公告)号:US20180175329A1
公开(公告)日:2018-06-21
申请号:US15845575
申请日:2017-12-18
Inventor: Jian Li , Kody George Klimes
CPC classification number: H01L51/5278 , C07F15/006 , C09K11/06 , C09K2211/1014 , C09K2211/1044 , C09K2211/185 , H01L51/0008 , H01L51/0084 , H01L51/5016 , H01L51/504 , H01L51/56 , H01L2251/558 , Y02E10/549
Abstract: An organic light emitting diode (OLED) device includes an emissive layer having a first sublayer with a first emitter as a dopant, a second sublayer with a second emitter as a dopant, and a third sublayer with a third emitter as a dopant. The second sublayer is between the first sublayer and the third sublayer. A concentration of the first emitter in the first sublayer exceeds a concentration of the third emitter in the third sublayer, and the concentration of the third emitter in the third sublayer exceeds a concentration of the second emitter in the second sublayer.
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公开(公告)号:US11183670B2
公开(公告)日:2021-11-23
申请号:US15845575
申请日:2017-12-18
Inventor: Jian Li , Kody George Klimes
Abstract: An organic light emitting diode (OLED) device includes an emissive layer having a first sublayer with a first emitter as a dopant, a second sublayer with a second emitter as a dopant, and a third sublayer with a third emitter as a dopant. The second sublayer is between the first sublayer and the third sublayer. A concentration of the first emitter in the first sublayer exceeds a concentration of the third emitter in the third sublayer, and the concentration of the third emitter in the third sublayer exceeds a concentration of the second emitter in the second sublayer.
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