公开(公告)号：US20200088637A1

公开(公告)日：2020-03-19

申请号：US16407792

申请日：2019-05-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yoonkyoo LEE ,  Taekyung KIM ,  Daeyup SHIN

IPC: G01N21/64 ,  G01N27/30

Abstract: An apparatus to evaluate a stability of a luminescent material includes an electrochemical cell that includes a sample including a solvent and the luminescent material mixed in the solvent, a voltage application device that applies a constant voltage to the sample, a light source that irradiates a source light to the sample, and a photoluminescence measuring device that measures a luminescence spectrum of an emission light generated by the luminescent material.

公开(公告)号：US20220020939A1

公开(公告)日：2022-01-20

申请号：US17369366

申请日：2021-07-07

Applicant: Samsung Display Co., Ltd.

Inventor： Yoonkyoo LEE ,  Jinwon SUN ,  Jungsub LEE

IPC: H01L51/00 ,  C07F7/08 ,  C09K11/06 ,  C07D209/86

Abstract: The disclosure relates to a light-emitting device including a first electrode, a second electrode facing the first electrode, and an interlayer disposed between the first electrode and the second electrode and including an emission layer. The interlayer includes a first compound represented by Formula 1 of the specification, a second compound represented by Formula 2 of the specification, and a third compound, which is a blue phosphorescent compound. The disclosure also relates to an electronic apparatus including the light-emitting device.

公开(公告)号：US20230354702A1

公开(公告)日：2023-11-02

申请号：US18297173

申请日：2023-04-07

Applicant: Samsung Display Co., Ltd.

Inventor： Yoonkyoo LEE ,  Jinwon SUN ,  Jungsub LEE ,  Heechoon Ahn

IPC: H10K85/60 ,  C07F7/08 ,  C09K11/06 ,  H10K85/40 ,  C07D209/88 ,  C07F15/00 ,  H10K85/30 ,  C07D403/14

CPC classification number: H10K85/6572 ,  C07D209/88 ,  C07D403/14 ,  C07F7/0812 ,  C07F15/0086 ,  C09K11/06 ,  H10K85/346 ,  H10K85/40 ,  H10K85/654 ,  H10K50/12

Abstract: Embodiments provide a light-emitting device and an electronic apparatus that includes the light-emitting device. The light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer disposed between the first electrode and the second electrode and including an emission layer. The interlayer includes a first compound represented by Formula 1, a second compound represented by Formula 2, and a third compound that is a blue phosphorescent compound, wherein Formulae 1 and 2 are explained in the specification.

公开(公告)号：US20200350507A1

公开(公告)日：2020-11-05

申请号：US16859763

申请日：2020-04-27

Applicant: Samsung Display Co., Ltd.

Inventor： Jinwon SUN ,  Jaejin LYU ,  Jungsub LEE ,  Hyun SHIN ,  Yoonkyoo LEE

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00

Abstract: An organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer having a first layer, and the first layer includes a first compound, a second compound, and a third compound. The first compound is a hole transporting host compound, the second compound is an electron transporting host compound, and the third compound is a hole transporting host compound or an electron transporting host compound. The first compound and the second compound form a first exciplex, and the first compound and the third compound, or the second compound and the third compound form a second exciplex, where the first exciplex and the second exciplex are different from each other.