公开(公告)号：US20240224790A1

公开(公告)日：2024-07-04

申请号：US18378562

申请日：2023-10-10

Applicant: LG DISPLAY CO., LTD.

Inventor： Ji-Ae LEE

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

CPC classification number: H10K85/615 ,  C09K11/06 ,  H10K85/342 ,  H10K85/622 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576

Abstract: An organic light emitting diode including a first electrode; a second electrode facing the first electrode; and an emissive layer disposed between the first electrode and the second electrode. The emissive layer includes at least one emitting material layer that includes a first compound including a first organic compound represented by Chemical Formula 1, and a second compound including an organometallic compound represented by Chemical Formula 4. The first organic compound may include multiple aromatic and heteroaromatic fused rings. The second compound may be a phosphorescent material. The first compound may have a wide plate-like structure and the first compound may receive efficiently exciton energy from the second compound. The present disclose also relates to an organic light emitting device including the diode. The luminous efficiency, luminous lifespan and color purity of the diode and device may be improved by introducing the first and second compounds into the emissive layer.

公开(公告)号：US20210066636A1

公开(公告)日：2021-03-04

申请号：US17011581

申请日：2020-09-03

Applicant: LG DISPLAY CO., LTD.

Inventor： Jeong-Eun BAEK ,  Jun-Yun KIM ,  Tae-Ryang HONG ,  Ji-Ae LEE

IPC: H01L51/50 ,  H01L51/00

Abstract: The present disclosure relates to an organic light emitting diode and an organic light emitting device having the diode. An organic light emitting diode including a plurality delayed fluorescent materials with specific energy levels and an organic light emitting device including the diode is disclosed. When the plurality delayed fluorescent materials with specific energy levels are applied in an emitting material layer, it is possible to minimize the energy loss or exciton quenching during luminescent process, to prevent the diode from reducing lifetime caused by the exciton quenching, and to make charges being injected into the emitting material layer in balance. When the emitting material layer includes other luminous material having a narrow FWHM, the organic light emitting diode can enhance its color purity.

公开(公告)号：US20230200231A1

公开(公告)日：2023-06-22

申请号：US17976552

申请日：2022-10-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Ji-Ae LEE ,  Young-Ju RYU ,  Gi-Hwan LIM ,  Jun-Yun KIM

IPC: H01L51/00 ,  C09K11/06

CPC classification number: H01L51/0072 ,  H01L51/0085 ,  H01L51/008 ,  C09K11/06 ,  H01L2251/5376 ,  H01L51/5044

Abstract: An organic light emitting diode can include a reflective electrode, a transparent electrode facing the reflective electrode, and an organic light emitting layer including a first emitting part and a second emitting part and positioned between the reflective electrode and the transparent electrode. Each of the first and second emitting parts includes a phosphorescent emitting layer and a fluorescent emitting layer. In at least one of the first and second emitting parts, the fluorescent emitting layer is positioned to be closer to the transparent electrode than the phosphorescent emitting layer. An organic light emitting device can include the organic light emitting diode and can be a display device or a lighting device.

公开(公告)号：US20220085299A1

公开(公告)日：2022-03-17

申请号：US17470807

申请日：2021-09-09

Applicant: LG Display Co., Ltd.

Inventor： Ji-Ae LEE ,  Bo-Min SEO ,  Jun-Yun KIM

IPC: H01L51/00

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, a second compound and a third compound and positioned between the first and second electrodes. An energy level of the first to third compounds satisfies a pre-determined condition. An organic light emitting device may include the organic light emitting diode.

公开(公告)号：US20240228483A1

公开(公告)日：2024-07-11

申请号：US18385217

申请日：2023-10-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Ji-Ae LEE

IPC: C07D471/04 ,  C09K11/06 ,  H10K50/13 ,  H10K85/60

CPC classification number: C07D471/04 ,  C09K11/06 ,  H10K50/13 ,  H10K85/6572 ,  C09K2211/1018

Abstract: The present disclosure relates to an organic compound having a wide plate-like structure fused with multiple aromatic and/or hetero aromatic rings, an organic light emitting diode and an organic light emitting device where an emissive layer comprises the organic compound. The organic compound has a structure of Chemical Formula 1.

公开(公告)号：US20230189541A1

公开(公告)日：2023-06-15

申请号：US18072257

申请日：2022-11-30

Applicant: LG Display Co., Ltd.

Inventor： In-Ae SHIN ,  Hye-Li MIN ,  Young-Ju RYU ,  Ji-Ae LEE ,  Gi-Hwan LIM ,  Jun-Yun KIM

IPC: H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/18 ,  H10K50/818 ,  H10K50/828 ,  H10K59/35 ,  H10K85/60 ,  H10K85/30

CPC classification number: H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/181 ,  H10K50/818 ,  H10K50/828 ,  H10K59/35 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/652 ,  H10K85/658 ,  H10K85/342 ,  H10K2102/101

Abstract: An organic light emitting display device includes a substrate including first to third pixel regions; and an organic light emitting diode including a transparent electrode, a reflective electrode and a light emitting layer between the transparent electrode and the reflective electrode. The light emitting layer in the organic light emitting diode in the first pixel region includes a first emitting part including a first emitting material layer and a second emitting part including a second emitting material layer. The light emitting layer in the organic light emitting diode in the second pixel region includes a third emitting part including a third emitting material layer and fourth emitting part including a fourth emitting material layer. Each of the first and fourth emitting material layers is a fluorescent emitting layer, and each of the second and third emitting material layers is a phosphorescent emitting layer.

公开(公告)号：US20210020847A1

公开(公告)日：2021-01-21

申请号：US16930719

申请日：2020-07-16

Applicant: LG DISPLAY CO., LTD ,  KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Kyung-Jin YOON ,  Dae-Wi YOON ,  Ji-Ae LEE ,  Su-Na CHOI ,  Dong-Hoon CHOI ,  Min-Ju CHO ,  Jiwon YOON

IPC: H01L51/00 ,  C07D491/20 ,  C09K11/06 ,  C07D495/20

Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound is a bipolar compound having a p-type moiety and an n-type moiety and has high energy level and proper energy bandgap for an emissive layer of the OLED. As the organic compound is applied into the emissive layer, the OLED can maximize its luminous properties as holes and electrons are recombined uniformly over the whole area in an emitting material layer (EML).

公开(公告)号：US20210119169A1

公开(公告)日：2021-04-22

申请号：US17034438

申请日：2020-09-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Ji-Ae LEE ,  Jun-Yun KIM ,  Tae-Ryang HONG ,  Jeong-Eun BAEK

IPC: H01L51/50 ,  H01L51/00 ,  H01L51/42

Abstract: The present disclosure relates to an organic light emitting diode (OLED) including plural light emitting material layers disposed between two electrodes and an electron blocking layer, wherein an energy level of the electron blocking layer disposed adjacently to an emitting material layer with relatively low level delayed fluorescent material and an energy level of the delayed fluorescent material are controlled, and an organic light emitting device having the diode. The OLED can lower its driving voltage and maximize its luminous efficiency and luminous lifetime.

公开(公告)号：US20210119141A1

公开(公告)日：2021-04-22

申请号：US17034380

申请日：2020-09-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Tae-Ryang HONG ,  Jun-Yun KIM ,  Jeong-Eun BAEK ,  Ji-Ae LEE

IPC: H01L51/00

Abstract: 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 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：US20210119140A1

公开(公告)日：2021-04-22

申请号：US17060520

申请日：2020-10-01

Applicant: LG DISPLAY CO., LTD.

Inventor： Ji-Ae LEE ,  Jun-Yun KIM ,  Tae-Ryang HONG ,  Jeong-Eun BAEK

IPC: H01L51/00

Abstract: An organic light emitting diode (OLED) including at least one emitting material layer (EML) disposed two electrodes and comprising triazine-based delayed fluorescent material and boron-dipyrromethene-based fluorescent material and an organic light emitting device including the OLED is disclosed. The triazine-based delayed fluorescent material and the boron-dipyrromethene-based fluorescent material may be included in an identical EML or in adjacently disposed EMLs. The OLED can lower its driving voltage and improve its luminous efficiency by adjusting energy levels of the delayed fluorescent material and the fluorescent material.