Invention Grant
- Patent Title: Organic electroluminescent element
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Application No.: US17417267Application Date: 2019-12-18
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Publication No.: US12219872B2Publication Date: 2025-02-04
- Inventor: Yuta Hirayama , Takeshi Yamamoto , Shunji Mochizuki , Shuichi Hayashi , Se-Jin Lee , Oun-Gyu Lee , Bong-Ki Shin
- Applicant: Hodogaya Chemical Co., Ltd. , SFC CO., LTD.
- Applicant Address: JP Tokyo; KR Cheongju-si
- Assignee: Hodogaya Chemical Co., Ltd.,SFC CO., LTD.
- Current Assignee: Hodogaya Chemical Co., Ltd.,SFC CO., LTD.
- Current Assignee Address: JP Tokyo; KR Cheongju-si
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2018-241387 20181225
- International Application: PCT/JP2019/049533 WO 20191218
- International Announcement: WO2020/137724 WO 20200702
- Main IPC: H10K50/11
- IPC: H10K50/11 ; H01L51/00 ; H10K59/00 ; H10K85/60 ; H10K101/10

Abstract:
The present invention provides various organic electroluminescent elements using a material for a capping layer and a material for a luminous layer, in which the material for a capping layer uses an arylamine material that exhibit excellent stability and durability in the form of a thin film, especially a specific amine compound having a high refractive index and having a high absorbance within a wavelength range from 400 nm to 410 nm in the absorption spectrum at a concentration of 10−5 mol/L; and in which the material for a luminous layer uses a compound containing a heterocyclic compound that has a specific fused ring structure.
Public/Granted literature
- US20220077403A1 ORGANIC ELECTROLUMINESCENT ELEMENT Public/Granted day:2022-03-10
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