公开(公告)号：US11678573B2

公开(公告)日：2023-06-13

申请号：US16590882

申请日：2019-10-02

Applicant: LG Display Co., Ltd.

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

IPC: C07D401/14 ,  H10K85/60 ,  C09K11/02 ,  C09K11/06 ,  H10K50/11 ,  H10K50/18 ,  H10K59/12 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

CPC classification number: H10K85/654 ,  C07D401/14 ,  C09K11/02 ,  C09K11/06 ,  H10K85/6572 ,  C09K2211/1007 ,  C09K2211/1018 ,  H10K50/11 ,  H10K50/18 ,  H10K59/12 ,  H10K2101/10 ,  H10K2101/30 ,  H10K2101/40

Abstract: An organic compound having a fused heteroaromatic moiety as an electron donor and a tri-pyrimidine moiety sharing an arylene group as an electron acceptor bonded to the fused heteroaromatic moiety, an organic light-emitting diode and an organic light-emitting device including the organic compound are disclosed, where the organic compound leads to enhanced luminous efficiency and lower driving voltages.

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：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：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：US10700290B2

公开(公告)日：2020-06-30

申请号：US15839336

申请日：2017-12-12

Applicant: LG DISPLAY CO., LTD.

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

IPC: H01L51/50 ,  H01L51/00 ,  C09K11/06 ,  C07D209/82 ,  C07D403/14 ,  C07D401/14 ,  C07D401/10

Abstract: An organic compound is represented by the Formula below, and an organic light-emitting diode and an organic light-emitting diode display device include the organic compound.

公开(公告)号：US10193085B2

公开(公告)日：2019-01-29

申请号：US15920353

申请日：2018-03-13

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: H01L51/46 ,  H01L51/00 ,  C07D401/10 ,  C07D401/14 ,  C07D409/14 ,  C07D471/04 ,  C07D495/04 ,  C09K11/02 ,  C09K11/06 ,  H01L27/32 ,  C07D219/02 ,  H01L51/50 ,  H01L51/52

Abstract: Embodiments relate to a delayed fluorescence compound of Formula 1: or Formula 2: The excitons in the triplet state are engaged in emission such that the emitting efficiency of the delayed fluorescent compound is increased. Embodiments also relate to a display device with an organic light emitting diode (OLED) that includes the delayed fluorescence compound.

公开(公告)号：US20240244967A1

公开(公告)日：2024-07-18

申请号：US18504980

申请日：2023-11-08

Applicant: LG Display Co., Ltd. ,  Korea University Research and Business Foundation

Inventor： Joon-Beom Im ,  Gyeong-Woo Kim ,  Ji-Seon Jang ,  Han-Jin Ahn ,  Jun-Yun Kim ,  Dong-Hoon Choi ,  Min-Ju Cho ,  Min-Ji Kang

IPC: H10K85/60 ,  C09K11/06 ,  H10K85/30 ,  H10K85/40

CPC classification number: H10K85/6572 ,  C09K11/06 ,  H10K85/346 ,  H10K85/40 ,  H10K85/615 ,  H10K85/657 ,  H10K85/6574 ,  H10K85/6576 ,  H10K50/11

Abstract: An organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first emitting part including a first emitting material layer and positioned between the first and second electrodes, wherein the first emitting material layer includes a first p-type host and a first n-type host, and wherein the first p-type host is represented by Formula 1, and the first n-type host is represented by Formula 3.

公开(公告)号：US20240237525A1

公开(公告)日：2024-07-11

申请号：US18504973

申请日：2023-11-08

Applicant: LG Display Co., Ltd.

Inventor： Jong-Uk Kim ,  Gi-Hwan Lim ,  In-Ae Shin ,  Jun-Yun Kim

IPC: H10K85/60 ,  C09K11/06

CPC classification number: H10K85/6572 ,  C09K11/06 ,  H10K85/6574 ,  H10K85/658 ,  H10K50/12

Abstract: The present disclosure relates to an organic light emitting diode comprising a first electrode; a second electrode facing the first electrode; and a first emitting part including a first red emitting material layer and positioned between the first and second electrode, the first red emitting material layer including a first delayed fluorescent compound, a second delayed fluorescent compound and a first fluorescent compound, wherein the first delayed fluorescent compound is represented by Formula 1, the second delayed fluorescent compound is represented by Formula 3, and the first fluorescent compound is represented by Formula 5.

公开(公告)号：US20240237377A1

公开(公告)日：2024-07-11

申请号：US18463973

申请日：2023-09-08

Applicant: LG Display Co., Ltd.

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

IPC: H10K50/11 ,  C09K11/06 ,  H10K85/30 ,  H10K85/60

CPC classification number: H10K50/11 ,  C09K11/06 ,  H10K85/342 ,  H10K85/658 ,  C09K2211/1022

Abstract: An organic light emitting diode and an organic light emitting display device including the same includes an anode, a cathode facing the anode, a first emitting part including a first emitting material layer and positioned between the anode and the cathode, and a second emitting part including a second emitting material layer and positioned between the anode and the first emitting part or between the cathode and the first emitting part, wherein the first emitting material layer includes a first emitting layer including a first fluorescent compound being a boron derivative and a second emitting layer including a second fluorescent compound being a boron derivative and positioned between the first emitting layer and the cathode, wherein the second emitting material layer includes a phosphorescent compound.

公开(公告)号：US11968898B2

公开(公告)日：2024-04-23

申请号：US17077240

申请日：2020-10-22

Applicant: LG DISPLAY CO., LTD.

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

IPC: H10K85/60 ,  H10K50/11 ,  H10K50/18 ,  H10K101/10 ,  H10K101/40

CPC classification number: H10K85/6574 ,  H10K85/622 ,  H10K85/631 ,  H10K85/6572 ,  H10K50/11 ,  H10K50/18 ,  H10K2101/10 ,  H10K2101/40

Abstract: An organic light emitting diode (OLED) includes a first emitting material layer disposed adjacently to a first electrode and a second emitting material layer disposed adjacently to a second electrode. The first emitting material layer includes a first compound having high affinity to holes and a second compound of thermally activated delayed fluorescent material, and the second emitting material layer includes a fourth compound having high affinity to electrons and implementing triplet-triplet annihilation. Two emitting material layers having adjusted energy levels allow the OLED to lower its driving voltages and improve its luminous efficiency and luminous lifetime.