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：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：US11864462B2

公开(公告)日：2024-01-02

申请号：US17060494

申请日：2020-10-01

Applicant: LG DISPLAY CO., LTD.

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

IPC: C09K11/06 ,  H10K85/60 ,  H10K50/11

CPC classification number: H10K85/6572 ,  C09K11/06 ,  H10K85/624 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1018 ,  H10K50/11

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. An organic light emitting device may include the organic light emitting diode.

公开(公告)号：US11417853B2

公开(公告)日：2022-08-16

申请号：US16573696

申请日：2019-09-17

Applicant: LG Display Co., Ltd

Inventor： Tae-Ryang Hong ,  Hyong-Jong Choi ,  Jun-Yun Kim

IPC: H01L51/50

Abstract: Disclosed is an organic light-emitting diode and an organic light-emitting device including the organic light-emitting diode. The organic light-emitting diode includes a cathode electrode; an anode electrode; a first emitting material layer including a first host and a first delayed fluorescent material, which is between the cathode electrode and the anode electrode; and a second emitting material layer having a second delayed fluorescent material and a first fluorescent or phosphorescent material, between the cathode electrode and the anode electrode. The organic light-emitting diode has enhanced luminous efficiency and color continuity.

公开(公告)号：US20230127360A1

公开(公告)日：2023-04-27

申请号：US17877399

申请日：2022-07-29

Applicant: LG Display Co., Ltd.

Inventor： Tae-Ryang Hong

IPC: H01L51/00

Abstract: An organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first emitting material layer including a first compound and a second compound and positioned between the first and second electrodes. The emission spectrum of the first compound and the absorption spectrum of the second compound has a relatively large overlapping ratio. An organic light emitting device includes the organic light emitting diode and can be a display device or a lighting device.

公开(公告)号：US11895915B2

公开(公告)日：2024-02-06

申请号：US16521369

申请日：2019-07-24

Applicant: LG Display Co., Ltd. ,  LG CHEM, LTD.

Inventor： Hyong-Jong Choi ,  Tae-Ryang Hong ,  Joong-Hwan Yang ,  Jun-Yun Kim ,  Wan-Pyo Hong ,  Jin-Joo Kim ,  Hong-Sik Yoon

IPC: H10K85/60 ,  C07D405/14 ,  C09K11/06 ,  C07D409/04 ,  C07D491/048 ,  C07D487/04 ,  H10K50/11 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40 ,  C07D409/14

CPC classification number: H10K85/6572 ,  C07D405/14 ,  C07D409/14 ,  C07D487/04 ,  C07D491/048 ,  C09K11/06 ,  H10K85/615 ,  H10K85/657 ,  H10K85/6574 ,  H10K85/6576 ,  C09K2211/1018 ,  H10K50/11 ,  H10K2101/10 ,  H10K2101/30 ,  H10K2101/40

Abstract: Disclosed is an organic light emitting diode (OLED) comprising at least one emitting unit that includes a first compound, which may have a bipolar property, a second compound, which may have a delayed fluorescent property, and a third compound, which may have narrow FWHM (full width at half maximum) and a fluorescent property, and an organic light emitting device including the OLED. Further the compounds have defined relative LUMO and HOMO energies. The OLED and the organic light emitting device has enhanced luminous efficiency, color purity and luminous life span as well as low driving voltage.

公开(公告)号：US11683982B2

公开(公告)日：2023-06-20

申请号：US16711015

申请日：2019-12-11

Applicant: LG Display Co., Ltd. ,  LG CHEM, LTD.

Inventor： Jun-Yun Kim ,  Tae-Ryang Hong ,  Joong-Hwan Yang ,  Wan-Pyo Hong ,  Jin-Joo Kim ,  Hong-Sik Yoon

IPC: H01L51/50 ,  H01L51/00 ,  C07D405/14 ,  C07D409/14 ,  C09K11/06

CPC classification number: H01L51/0072 ,  C07D405/14 ,  C07D409/14 ,  C09K11/06 ,  H01L51/0073 ,  H01L51/0074 ,  C09K2211/1018 ,  H01L51/5016 ,  H01L51/5028 ,  H01L51/5044 ,  H01L2251/552

Abstract: An organic compound including a carbazolyl moiety having a p-type property, a dibenzofuranyl or dibenzothiophenyl moiety having an n-type property and further substituted with a dibenzofuranyl or dibenzothiophenyl moiety is disclosed. An organic light emitting diode and an organic light emitting device including the organic compound are also disclosed. The organic compound has excellent thermal resistance and a high energy level due to the combination of fused hetero aromatic rings. Therefore, the organic light emitting diode and the organic light emitting device including the organic compound show excellent luminous efficiency and an improved luminous lifetime.

公开(公告)号：US11637255B2

公开(公告)日：2023-04-25

申请号：US16690450

申请日：2019-11-21

Applicant: LG Display Co., Ltd.

Inventor： Tae-Ryang Hong ,  Hyong-Jong Choi ,  Jun-Yun Kim

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

Abstract: An embodiment of the present disclosure provides an organic light emitting diode comprising a first electrode; a second electrode facing the first electrode; and a first emitting material layer including a first delayed fluorescent dopant and a first phosphorescent dopant and disposed between the first and second electrodes, wherein a percentage by weight of the first phosphorescent dopant with respect to the first delayed fluorescent dopant is equal to or less than 5.