公开(公告)号：US11557731B2

公开(公告)日：2023-01-17

申请号：US16728273

申请日：2019-12-27

Applicant: LG Display Co., Ltd. ,  Soulbrain Co., Ltd.

Inventor： Hyong-Jong Choi ,  Tae-Ryang Hong ,  Jun-Yun Kim ,  Jin Hee Kim ,  Ah-Rang Lee

IPC: H01L51/00 ,  C09K11/06 ,  H01L27/32 ,  H01L51/50

Abstract: The present disclosure provides an organic light emitting diode comprising a first electrode; a second electrode facing the first electrode; and an emitting material layer. The emitting material layer includes a p-type host, a n-type host and a phosphorescent dopant and positioned between the first electrode and the second electrode, wherein a first energy level of a HOMO of the p-type host is equal to or lower than a second energy level of a HOMO of the n-type host, and a difference between an energy level of a singlet state of the n-type host and an energy level of a triplet state of the n-type host is greater than 0.3 eV and smaller than 0.5 eV.

公开(公告)号：US11420979B2

公开(公告)日：2022-08-23

申请号：US16726536

申请日：2019-12-24

Applicant: LG Display Co., Ltd. ,  Soulbrain Co., Ltd.

Inventor： Ik-Rang Choe ,  Tae-Ryang Hong ,  Jun-Yun Kim ,  Jin Hee Kim ,  Eun Chul Shin

IPC: H01L51/00 ,  C07D495/10 ,  C07D491/107 ,  C07D401/10 ,  C07F7/08 ,  C07D471/14 ,  C07D405/14 ,  C07D471/10 ,  H01L51/50

Abstract: Disclosed is an organic compound that includes a fused hetero aromatic moiety of a spiro structure as an electron donor and a triazine moiety as an electron acceptor that is linked to the electron donor via an arylene linker substituted with at least one electron withdrawing group, an organic light emitting diode and an organic light emitting device each of which applies the organic compound into at least one emitting unit. The organic compound enables the organic light emitting diode to increase its luminous efficiency and to improve its color purity.

公开(公告)号：US11667647B2

公开(公告)日：2023-06-06

申请号：US16712159

申请日：2019-12-12

Applicant: LG Display Co., Ltd. ,  Soulbrain Co., Ltd.

Inventor： Suk-Young Bae ,  Tae-Ryang Hong ,  Jun-Yun Kim ,  Jin-Hee Kim ,  Ah-Rang Lee

IPC: C07D491/10 ,  C07D491/107 ,  C07D495/10 ,  H01L51/00 ,  H01L51/50

CPC classification number: C07D491/107 ,  C07D495/10 ,  H01L51/0054 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/5004

Abstract: The disclosure provides a delayed fluorescent compound of the Formula




and an organic light emitting diode including a first electrode, a second electrode and an organic emitting layer between the first and second electrodes, where the delayed fluorescent compound is included in the organic emitting layer, and an organic light emitting display device including the organic emitting layer.

公开(公告)号：US11655219B2

公开(公告)日：2023-05-23

申请号：US17103469

申请日：2020-11-24

Applicant: LG DISPLAY CO., LTD. ,  Soulbrain Co., Ltd

Inventor： Jun-Yun Kim ,  Hyong-Jong Choi ,  Joong-Hwan Yang ,  Bo-Min Seo ,  Tae-Ryang Hong ,  Jin Hee Kim ,  Eun-Chul Shin

IPC: C07D253/08 ,  H01L51/00 ,  H01L51/50 ,  C09K11/06

CPC classification number: C07D253/08 ,  H01L51/0067 ,  H01L51/0071 ,  H01L51/0072 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1014 ,  C09K2211/1018 ,  H01L51/5012

Abstract: The present disclosure relates to an organic compound having the following structure of Chemical Formula 1, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound includes a triazine moiety of an electron acceptor and a fused hetero aromatic moiety of an electron donor separated from the triazine moiety. The organic compound includes the electron acceptor moiety and the electron donor moiety in a single molecule, thus charges can be moved in the molecule. Also, since the organic compound includes the rigid fused hetero aromatic ring, three dimensional conformation of the organic compound is limited, and therefore the compound may have excellent luminous efficiency and color purity.

公开(公告)号：US20230157150A1

公开(公告)日：2023-05-18

申请号：US17962247

申请日：2022-10-07

Applicant: LG Display Co., Ltd.

Inventor： Hye-Li Min ,  In-Ae Shin ,  Gi-Hwan Lim ,  Jun-Yun Kim

IPC: H01L51/00 ,  C07D209/86 ,  C09K11/06 ,  C07F5/02

CPC classification number: H01L51/008 ,  C07D209/86 ,  C09K11/06 ,  H01L51/0072 ,  C07F5/027 ,  H01L51/5044

Abstract: An organic light emitting diode (OLED) including at least one emitting material layer (EML) disposed between two electrodes and including plural delayed fluorescent materials having at least one carbazolyl moiety and BODIPY-based fluorescent material and an organic light emitting device including the OLED are discussed. The delayed fluorescent material and the fluorescent material can be included in the same emitting material layer or adjacently disposed emitting material layers. The OLED can lower its driving voltage and improve its luminous efficiency utilizing the advantages of the delayed fluorescent materials and the fluorescent material by adjusting energy levels among the delayed fluorescent materials and the fluorescent material.

公开(公告)号：US11943998B2

公开(公告)日：2024-03-26

申请号：US17100611

申请日：2020-11-20

Applicant: LG Display Co., Ltd.

Inventor： Ik-Rang Choe ,  Hye-Gun Ryu ,  Jun-Yun Kim ,  Seong-Keun Kim ,  Ju-Young Lee

IPC: H01L51/50 ,  C09K11/06 ,  H10K85/30 ,  H10K85/60 ,  H10K50/11 ,  H10K50/12 ,  H10K50/13 ,  H10K101/10

CPC classification number: H10K85/322 ,  C09K11/06 ,  H10K85/622 ,  H10K85/631 ,  H10K85/633 ,  H10K85/654 ,  H10K85/6572 ,  C09K2211/1018 ,  H10K50/11 ,  H10K50/121 ,  H10K50/13 ,  H10K85/626 ,  H10K2101/10

Abstract: The present disclosure provides an organic light emitting diode including a first electrode; a second electrode facing the first electrode; and an emitting material layer including a first compound and a second compound positioned between the first and second electrodes, wherein the first compound includes a hexagonal-ring moiety including one boron atom, one oxygen atom and four carbon atoms, and the second compound includes a hexagonal-ring moiety including one boron atom, one nitrogen atom and four carbon atoms, and an organic light emitting device including the organic light emitting diode.

公开(公告)号：US11683983B2

公开(公告)日：2023-06-20

申请号：US17034478

申请日：2020-09-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Bo-Min Seo ,  Hyong-Jong Choi ,  Jun-Yun Kim

IPC: H01L51/50 ,  H01L51/00

CPC classification number: H01L51/0072 ,  H01L51/0081 ,  H01L2251/552

Abstract: An organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and an emitting material layer including a first compound and a second compound and positioned between the first and second electrodes. An energy level of the first compound and an energy level of the second compound satisfy a pre-determined condition. Further, an organic light emitting device may include the organic light emitting diode.

公开(公告)号：US11417845B2

公开(公告)日：2022-08-16

申请号：US16531584

申请日：2019-08-05

Applicant: LG Display Co., Ltd.

Inventor： Suk-Young Bae ,  In-Ae Shin ,  Jun-Yun Kim

IPC: H01L51/00 ,  C07D233/58 ,  C09K11/06 ,  C07D277/22 ,  C07D209/88 ,  H01L27/32 ,  H01L51/50 ,  H01L51/56

Abstract: An organic compound having a spiro-anthracene core and an aromatic or heteroaromatic group and/or an amino group bonded to the core, and an organic light-emitting diode and an organic light-emitting device including the organic compound are disclosed. Since the organic compound of the present disclosure has a rigid structure and a substantially narrow full width at half maximum (FWHM), it is possible to manufacture an organic light-emitting diode and an organic light-emitting device with lowered driving voltages and enhanced luminous efficiency and color purity using the organic compound.

公开(公告)号：US10889602B2

公开(公告)日：2021-01-12

申请号：US15842602

申请日：2017-12-14

Applicant: LG DISPLAY CO., LTD.

Inventor： Jun-Yun Kim ,  Hyo-Jin Noh ,  Dae-Wi Yoon

IPC: H01L51/50 ,  C07F7/10 ,  C07D401/10 ,  C07D491/107 ,  C09K11/06 ,  H01L51/00 ,  C07F7/08

Abstract: Embodiments relate to an organic compound of Formula 1: The excitons in the triplet state are engaged in emission such that the emitting efficiency of the organic compound is increased. Embodiments also relate to an organic light emitting display device with an organic light emitting diode that includes the organic compound.

公开(公告)号：US10056556B2

公开(公告)日：2018-08-21

申请号：US14954840

申请日：2015-11-30

Applicant: LG Display Co., Ltd.

Inventor： Joong-Hwan Yang ,  Kyung-Jin Yoon ,  Hyo-Jin Noh ,  Dae-Wi Yoon ,  In-Ae Shin ,  Jun-Yun Kim

IPC: H01L51/00 ,  H01L51/50 ,  H01L27/32 ,  C07D249/08 ,  C07D239/26 ,  C07D403/10 ,  C07D251/24 ,  C09K11/06 ,  C09K11/02 ,  H01L51/52

CPC classification number: H01L51/0051 ,  C07D239/26 ,  C07D249/08 ,  C07D251/24 ,  C07D403/10 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1044 ,  C09K2211/1059 ,  H01L27/32 ,  H01L51/0059 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5024 ,  H01L51/5253 ,  H01L2251/5384 ,  H01L2251/552

Abstract: Discussed is a space-through charge transfer compound including a paracyclophane core, an electron donor moiety selected from the group consisting of carbazole and diphenyl amine, and an electron acceptor moiety selected from the group consisting of pyrimidine, diphenyltriazine, and triazole. The electron donor moiety and the electron acceptor moiety are indirectly or directly combined to the paracyclophane core with or without a linker, respectively.