公开(公告)号：US11456427B2

公开(公告)日：2022-09-27

申请号：US16711035

申请日：2019-12-11

Applicant: LG Display Co., Ltd

Inventor： Bo-Min Seo ,  Jeong-Eun Baek ,  Dae-Wi Yoon ,  Mi-Sang Yoo

IPC: H01L51/00

Abstract: An organic light emitting diode including at least one emitting material layer, which includes a host and a dopant and at least one exciton energy control layer disposed adjacently to the at least one emitting material layer and an organic light emitting device having the same is disclosed. The at least one exciton energy control layer includes an organic compound that has excited state singlet and triplet energy levels lower than excited state singlet and triplet energy levels of the host. The organic light emitting diode can enhance its luminous efficiency and its luminous lifetime by incorporating one or more exciton energy control layers.

公开(公告)号：US11424424B2

公开(公告)日：2022-08-23

申请号：US16710362

申请日：2019-12-11

Applicant: LG Display Co., Ltd.

Inventor： Chun-Ki Kim ,  Joong-Hwan Yang ,  Bo-Min Seo ,  Dae-Wi Yoon

IPC: H01L51/50 ,  H01L51/52

Abstract: The present disclosure relates to an organic light emitting diode including an emitting material layer that has a host and two different delayed fluorescent materials whose energy levels are controlled and an organic light emitting device including the diode. Exciton energy is transferred from a first delayed fluorescent dopant to a second delayed fluorescent dopant, which has singlet and triplet energy levels lower than singlet and triplet energy levels of the first delayed fluorescent dopant and a narrow FWHM (full-width at half maximum) compared to the first delayed fluorescent dopant so that efficient light emission can be realized.

公开(公告)号：US10651399B2

公开(公告)日：2020-05-12

申请号：US16148897

申请日：2018-10-01

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

Abstract: Embodiments relate to a delayed fluorescence compound of 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：US10141515B2

公开(公告)日：2018-11-27

申请号：US14885707

申请日：2015-10-16

Applicant: LG Display Co., Ltd.

Inventor： Hyo-Jin Noh ,  Kyung-Jin Yoon ,  Dae-Wi Yoon ,  In-Ae Shin ,  Jun-Yun Kim

IPC: H01L51/00 ,  C09K11/06 ,  H01L51/50 ,  C07D213/38 ,  C07D235/18 ,  C07D401/10 ,  C07D403/10 ,  C09K11/02 ,  H01L27/32

Abstract: Discussed is a space-through charge transfer compound including a naphthalene core; an electron donor moiety selected from carbazole and phenylcarbazole; and an electron acceptor moiety selected from pyridine, diazine, triazole, and phenyl benzodiazole, wherein the electron donor moiety and the electron acceptor moiety are combined to first and eighth positions of the naphthalene core with a benzene linker, respectively.

公开(公告)号：US10135005B2

公开(公告)日：2018-11-20

申请号：US15920358

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

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：US09837619B2

公开(公告)日：2017-12-05

申请号：US14885785

申请日：2015-10-16

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: H01L51/54 ,  C09K11/06 ,  H01L51/00 ,  C07D487/04 ,  C07D487/06 ,  H01L51/52 ,  H01L51/50

CPC classification number: H01L51/0072 ,  C07D487/04 ,  C07D487/06 ,  C09K11/06 ,  C09K2211/1014 ,  C09K2211/1029 ,  C09K2211/1092 ,  H01L51/0059 ,  H01L51/0061 ,  H01L51/0074 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5237

Abstract: Discussed is a delayed fluorescence compound including a first electron donor moiety of indolo-[3,2,1-j,k]carbazole; a second electron donor moiety selected from indolo-[3,2,1-j,k]carbazole, carbazole, or triphenylamine; and an electron acceptor moiety selected from dibenzothiophene sulfone or diphenyl sulfone, wherein the first and second electron donor moieties are combined to the electron acceptor moiety, and the electron acceptor moiety is combined to a third position or a sixth position of the first electron donor moiety.

公开(公告)号：US12065455B2

公开(公告)日：2024-08-20

申请号：US17103097

申请日：2020-11-24

Applicant: LG DISPLAY CO., LTD.

Inventor： In-Ae Shin ,  Kyung-Jin Yoon ,  Dae-Wi Yoon ,  Suk-Young Bae ,  Mi-Sang Yoo

IPC: C07F5/02 ,  H10K50/11 ,  H10K85/30 ,  H10K85/60 ,  H10K101/10

CPC classification number: C07F5/02 ,  H10K50/11 ,  H10K85/322 ,  H10K85/631 ,  H10K85/657 ,  H10K85/658 ,  H10K2101/10

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 includes an electron donor moiety separated from an electron acceptor moiety, thus has delayed fluorescent properties. Applying the organic compound into an emissive layer makes the OLED and the organic light emitting device can allows the OLED and the organic light emitting device to improve their luminous efficiency.

公开(公告)号：US11889757B2

公开(公告)日：2024-01-30

申请号：US16523902

申请日：2019-07-26

Applicant: LG Display Co., Ltd.

Inventor： Bo-Min Seo ,  Dae-Wi Yoon ,  Jun-Yun Kim ,  Chun-Ki Kim ,  Mi-Sang Yoo

IPC: H10K85/60 ,  H10K85/40 ,  H10K50/11 ,  H10K50/13 ,  H10K50/18 ,  H10K50/81 ,  H10K50/82 ,  H10K101/10 ,  H10K101/00

CPC classification number: H10K85/6572 ,  H10K85/40 ,  H10K85/654 ,  H10K85/6574 ,  H10K50/11 ,  H10K50/13 ,  H10K50/18 ,  H10K50/81 ,  H10K50/82 ,  H10K2101/10 ,  H10K2101/27

Abstract: An organic light emitting diode comprises an emitting material layer implementing a delayed fluorescence and another emitting material layer disposed adjacently to the emitting material layer and implementing fluorescence or phosphorescence and an organic light emitting device including the diode. As exciton generated in the plural emitting material layer drops to a ground state through the luminous materials each of which has a controlled energy level, it is possible to implement excellent luminous efficiency derived from a delayed fluorescent material and improved color purity derived from a fluorescent or phosphorescent material having narrow FWHM.

公开(公告)号：US11844275B2

公开(公告)日：2023-12-12

申请号：US17068313

申请日：2020-10-12

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

Inventor： Dae-Wi Yoon ,  Suk-Young Bae ,  In-Ae Shin ,  Su-Na Choi ,  Dong-Hoon Choi ,  Min-Ju Cho ,  Jiwon Yoon

IPC: C07D487/04 ,  C07D513/04 ,  C07D519/00 ,  H10K101/00 ,  H10K101/20 ,  H10K101/40 ,  H10K50/11 ,  H10K50/12 ,  H10K50/16 ,  H10K50/18 ,  H10K85/60

CPC classification number: H10K85/6572 ,  C07D513/04 ,  H10K50/11 ,  H10K50/16 ,  H10K50/18 ,  H10K2101/40

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 EML.

公开(公告)号：US11825741B2

公开(公告)日：2023-11-21

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: H10K85/60 ,  C07D491/20 ,  C09K11/06 ,  C07D495/20 ,  H10K50/11

CPC classification number: H10K85/657 ,  C07D491/20 ,  C07D495/20 ,  C09K11/06 ,  H10K85/6572 ,  C09K2211/1018 ,  H10K50/11

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).