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：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：US11683982B2

公开(公告)日：2023-06-20

申请号：US16711015

申请日：2019-12-11

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

Inventor： Jun-Yun Kim ,  Tae-Ryang Hong ,  Joong-Hwan Yang ,  Wan-Pyo Hong ,  Jin-Joo Kim ,  Hong-Sik Yoon

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

CPC classification number: H01L51/0072 ,  C07D405/14 ,  C07D409/14 ,  C09K11/06 ,  H01L51/0073 ,  H01L51/0074 ,  C09K2211/1018 ,  H01L51/5016 ,  H01L51/5028 ,  H01L51/5044 ,  H01L2251/552

Abstract: An organic compound including a carbazolyl moiety having a p-type property, a dibenzofuranyl or dibenzothiophenyl moiety having an n-type property and further substituted with a dibenzofuranyl or dibenzothiophenyl moiety is disclosed. An organic light emitting diode and an organic light emitting device including the organic compound are also disclosed. The organic compound has excellent thermal resistance and a high energy level due to the combination of fused hetero aromatic rings. Therefore, the organic light emitting diode and the organic light emitting device including the organic compound show excellent luminous efficiency and an improved luminous lifetime.

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.