Invention Grant
- Patent Title: Light-emitting device
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Application No.: US15913130Application Date: 2018-03-06
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Publication No.: US10297778B2Publication Date: 2019-05-21
- Inventor: Sunghun Lee , Jiwhan Kim , Sungjun Kim , Sukekazu Aratani , Hyeonho Choi , Seungyeon Kwak , Hyun Koo , Sangdong Kim , Seokhwan Hong
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Gyeonggi-Do
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Gyeonggi-Do
- Agency: Cantor Colburn LLP
- Priority: KR10-2017-0028548 20170306
- Main IPC: H01L51/50
- IPC: H01L51/50 ; H01L51/52

Abstract:
A light-emitting device including an material, wherein KISC/KFL(original) of the emitting material is about 100 or greater, KRISC/KPH(original) of the emitting material is about 100 or greater, KISC/KRISC of the emitting material is about 0.9 or greater and about 1,000 or less, wherein, among all emission components of the emitting material, a ratio of a phosphorescent emission component that is emitted by a radiative transition of a triple exciton to a ground state is 90% or greater, wherein the KISC, the KRISC, the KFL(original), the KPH(original) are the same as described in the specification, and wherein the ratio of the phosphorescent emission component are evaluated from a transient photoluminescence (PL) spectrum per temperature of the emitting material.
Public/Granted literature
- US20180254425A1 LIGHT-EMITTING DEVICE Public/Granted day:2018-09-06
Information query
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