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：US11588113B2

公开(公告)日：2023-02-21

申请号：US16518414

申请日：2019-07-22

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

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

IPC: H01L51/00 ,  C07D409/14 ,  C09K11/06 ,  C07D405/14 ,  H01L51/50 ,  H01L51/52

Abstract: Disclosed is an organic light emitting diode (OLED) includes a first emitting material layer, which includes a first compound and a second compound, and a second emitting material layer, which includes a third compound and a fourth compound, wherein a HOMO energy level of the first compound is higher than a HOMO energy level of the second compound and a HOMO energy level of the third compound is lower than a HOMO energy level of the fourth compound, and an organic light emitting device having the OLED. The OLED and the organic light emitting device disclosed have enhanced luminous efficiency, color purity and luminous life span as well as low driving voltage by applying the emitting material layer.

公开(公告)号：US11856853B2

公开(公告)日：2023-12-26

申请号：US17105096

申请日：2020-11-25

Applicant: LG DISPLAY CO., LTD. ,  LG CHEM, LTD.

Inventor： Hyong-Jong Choi ,  Bo-Min Seo ,  Ik-Rang Choe ,  Hye-Gun Ryu ,  Jin-Joo Kim

IPC: H10K85/60 ,  C09K11/06 ,  C07D493/04 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18 ,  H10K59/12 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

CPC classification number: H10K85/6574 ,  C07D493/04 ,  C09K11/06 ,  H10K85/6572 ,  H10K85/6576 ,  C09K2211/1018 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/171 ,  H10K50/18 ,  H10K59/12 ,  H10K2101/10 ,  H10K2101/30 ,  H10K2101/40

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 is a bipolar organic compound having a p-type moiety and an n-type moiety. The organic compound has a high excited triplet energy level, a wide energy bandgap and excellent thermal stability. When the organic compound is introduced into an emitting material layer (EML) of the OLED, holes and electrons are recombined in the whole area of the EML, thus the OLED can improve its luminous efficiency and luminous lifetime.

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：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：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.

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：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.