公开(公告)号：US20200185622A1

公开(公告)日：2020-06-11

申请号：US16702269

申请日：2019-12-03

Applicant: LG Display Co., Ltd. ,  DONGJIN SEMICHEM CO., LTD.

Inventor： Kyung-Jin YOON ,  Yu-Jin BAE ,  Bo-Min SEO ,  Jeong-Eun BAEK ,  Joong-Hwan YANG ,  Chun-Ki KIM ,  Jung-Hyun YOON ,  Hyung-Won CHO ,  Kyu-Soon SHIN ,  Jeong-A SEO ,  Hyung-Jin LEE ,  Young-Sam JIN ,  Dong-Hyun LEE

IPC: H01L51/00 ,  C07D491/20 ,  C09K11/06 ,  C07D519/00

Abstract: The present disclosure provides a compound of following formula and an organic light emitting device and an organic light emitting display device including the compound. The compound of the present disclosure serves as a host or a dopant in an emitting material 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：US20200048231A1

公开(公告)日：2020-02-13

申请号：US16516758

申请日：2019-07-19

Applicant: LG Display Co., Ltd.

Inventor： Kyung-Jin YOON ,  Hyo-Jin NOH ,  Jeong-Eun BAEK

IPC: C07D405/14 ,  C07D405/12 ,  C07D409/14 ,  H01L51/00

Abstract: The present invention provides an organic compound of following formula and an organic light emitting diode and an OLED device including the organic compound.

公开(公告)号：US20200048199A1

公开(公告)日：2020-02-13

申请号：US16529107

申请日：2019-08-01

Applicant: LG Display Co., Ltd.

Inventor： Jeong-Eun BAEK ,  Mi-Sang YOO ,  Kyung-Jin YOON ,  Joong-Hwan YANG

IPC: C07D209/82 ,  H01L51/00 ,  C07D239/26 ,  C07D307/91 ,  C07D491/107 ,  C07D219/02 ,  C07D213/06

Abstract: An organic compound having a naphtho fluoranthene core and a hetero aromatic group bonded to a specific position of the naphtho fluoranthene core, an organic light-emitting diode and an organic light-emitting device including the compound are disclosed. Since the organic compound has a narrow Stokes Shift between an absorption wavelength and an emission wavelength, the organic compound has a broad overlapped area between its absorption peak and an emission peak of a delayed fluorescent material, and therefore it can emit blue light with high color purity. It is possible to manufacture an organic light-emitting diode (OLED) and an organic light-emitting device that enhance luminous efficiency and color purity using the organic compound.

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.

公开(公告)号：US20210036237A1

公开(公告)日：2021-02-04

申请号：US16944387

申请日：2020-07-31

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

Inventor： Suk-Young BAE ,  Jun-Yun KIM ,  Dae-Wi YOON ,  Jeong-Eun BAEK ,  Han-Young WOO ,  Hye-Beom SHIN

IPC: H01L51/00 ,  C07D241/38 ,  C09K11/06 ,  C07D487/04

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. Applying the organic compound into an emissive layer makes the OLED and the organic light emitting device lower their driving voltage, improves their luminous efficiency and color purity.

公开(公告)号：US20200185621A1

公开(公告)日：2020-06-11

申请号：US16702204

申请日：2019-12-03

Applicant: LG Display Co., Ltd.

Inventor： Mi-Sang YOO ,  Hyo-Jin NOH ,  Jeong-Eun BAEK

IPC: H01L51/00 ,  C07D209/94 ,  C07D401/10 ,  C09K11/06

Abstract: Discussed is an organic compound having a benzofluorenocarbazole core and an aromatic or hetero aromatic groups bonded to a specific positions of the benzofluorenocarbazole core, and an organic light emitting diode and an organic light emitting device including the compound. The organic compound has a narrow Stokes Shift between an absorption spectrum peak and an emission spectrum peak, it has a broad spectral overlapping area between its absorption wavelength range and an emission wavelength range of another luminous material. Therefore, it can emit light having high color purity and exhibit excellent luminous efficiency.

公开(公告)号：US20200044157A1

公开(公告)日：2020-02-06

申请号：US16526523

申请日：2019-07-30

Applicant: LG Display Co., Ltd.

Inventor： Mi-Sang YOO ,  Jeong-Eun BAEK ,  Joong-Hwan YANG ,  Bo-Min SEO

IPC: H01L51/00 ,  C09K11/06 ,  C07C255/50

Abstract: The present disclosure provides an organic emitting compound of the following Formula, and an organic light emitting diode, which includes a first electrode; a second electrode facing the first electrode; and a first emitting material layer positioned between the first electrode and the second electrode and including a first host and the organic emitting compound, and an organic light emitting display device including the organic light emitting diode.