公开(公告)号：US20230189643A1

公开(公告)日：2023-06-15

申请号：US18080363

申请日：2022-12-13

Applicant: LG DISPLAY CO., LTD.

Inventor： In-Ae SHIN ,  Hye-Li MIN ,  Gi-Hwan LIM ,  Jun-Yun KIM

IPC: H10K85/60 ,  H10K50/15 ,  H10K85/30 ,  H10K50/16 ,  H10K50/18

CPC classification number: H10K85/6572 ,  H10K50/15 ,  H10K50/16 ,  H10K50/18 ,  H10K85/342 ,  H10K85/652 ,  H10K85/657 ,  H10K85/658 ,  H10K85/6574 ,  H10K2101/30

Abstract: An organic light emitting diode can include a first electrode, a second electrode facing the first electrode, and a first emitting part including a first emitting material layer between the first and second electrodes, a first hole blocking layer between the second electrode and the first emitting material layer and a first intermediate functional layer between the first emitting material layer and the first hole blocking layer. The first emitting material layer includes a first compound, a second compound and a third compound. The first intermediate functional layer includes a first compound and a second compound. The second compound in the first intermediate functional layer has a core that is the same as the second compound in the first emitting material layer and has a higher LUMO energy level than the second compound in the first emitting material layer.

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：US20220077401A1

公开(公告)日：2022-03-10

申请号：US17385831

申请日：2021-07-26

Applicant: LG DISPLAY CO., LTD. ,  LT Materials Co., Ltd.

Inventor： Tae-Ryang HONG ,  Suk-Young BAE ,  Jun-Yun KIM ,  Yong-Woo KIM ,  Yong-Geun JUNG ,  Jin-Hwan SHIN ,  Yeon-Jun SHIM

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

Abstract: The present disclosure relates to an organic compound in which an electron acceptor moiety and an electron donor moiety of a fused aromatic ring or a hetero aromatic ring are directly linked or through an linker moiety and they are connected via carbon-carbon bond, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. The organic compound includes both the electron acceptor and donor moieties that are linked directly or through a linker moiety via a carbon-carbon bond having strong bond energy within its molecule, thus charges can be transported easily within the molecule. The OLED and the organic light emitting device including the organic compound in an emissive layer can implement excellent luminous efficiency and luminous lifespan.

公开(公告)号：US20210126205A1

公开(公告)日：2021-04-29

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: H01L51/00

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.

公开(公告)号：US20210119146A1

公开(公告)日：2021-04-22

申请号：US17060494

申请日：2020-10-01

Applicant: LG DISPLAY CO., LTD.

Inventor： Tae-Ryang HONG ,  Hyong-Jong CHOI ,  Bo-Min SEO ,  Jun-Yun KIM

IPC: H01L51/00 ,  C09K11/06

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 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：US20160133856A1

公开(公告)日：2016-05-12

申请号：US14938723

申请日：2015-11-11

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

CPC classification number: H01L51/0072 ,  C07D219/02 ,  C07D401/10 ,  C07D401/14 ,  C07D409/14 ,  C07D471/04 ,  C07D495/04 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1014 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/1059 ,  C09K2211/1092 ,  H01L27/3244 ,  H01L51/005 ,  H01L51/0067 ,  H01L51/0071 ,  H01L51/0074 ,  H01L51/0094 ,  H01L51/0097 ,  H01L51/5004 ,  H01L51/5016 ,  H01L51/5253 ,  H01L2251/301 ,  H01L2251/308 ,  H01L2251/552

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.

Abstract translation: 实施方案涉及式1的延迟荧光化合物或式2：三重态的激子被引入发射，使得延迟的荧光化合物的发射效率增加。 实施例还涉及具有包括延迟荧光化合物的有机发光二极管（OLED）的显示装置。

公开(公告)号：US20240196735A1

公开(公告)日：2024-06-13

申请号：US18495623

申请日：2023-10-26

Applicant: LG Display Co., Ltd. ,  Dong-A University Research Foundation For Industry-Academy Cooperation

Inventor： Dong-Ryun LEE ,  Chi-Ho LEE ,  Joon-Beom IM ,  Han-Jin AHN ,  Jun-Yun KIM ,  Gi-Dong LEE ,  Chang-Hee LEE

IPC: H10K85/40 ,  C07F7/08 ,  C09K11/06

CPC classification number: H10K85/40 ,  C07F7/0812 ,  C09K11/06 ,  H10K2101/90

Abstract: The present disclosure relates to an organic compound including at least one carbazolyl moiety fused with an alicyclic or hetero alicyclic ring and linked to directly or via a linker to a triazine moiety and at least one blocking moiety linked the triazine moiety, an organic light emitting diode and an organic light emitting device including the organic compound. The organic compound can implement high luminous efficiency as enhancing delayed fluorescent property, minimize reduction of the luminous lifespan caused by substituent degradation, and can secure high triplet energy level owing to no conjugation extensions. The organic light emitting diode and the organic light emitting device using the organic compound can have beneficial luminous efficiency and the luminous lifespan.

公开(公告)号：US20230210001A1

公开(公告)日：2023-06-29

申请号：US18074194

申请日：2022-12-02

Applicant: LG Display Co., Ltd.

Inventor： Joon-Beom IM ,  In-Ae SHIN ,  Han-Jin AHN ,  Jun-Yun KIM

IPC: H10K85/60 ,  H10K50/818 ,  H10K50/828 ,  H10K59/35 ,  H10K59/38 ,  H10K85/30 ,  H10K85/40

CPC classification number: H01L51/0071 ,  H01L51/5218 ,  H01L51/5234 ,  H01L27/3211 ,  H01L27/322 ,  H01L51/0072 ,  H01L51/0087 ,  H01L51/0067 ,  H01L51/0094 ,  H01L51/0054

Abstract: An organic light emitting diode can include a reflective electrode, a transparent electrode facing the reflective electrode, and a first emitting part including a first blue emitting material layer and positioned between the reflective electrode and the transparent electrode, a second emitting part including a second blue emitting material layer and positioned between the first emitting part and the transparent electrode, and a charge generation layer positioned between the first and second emitting parts. The first blue emitting material layer includes a fluorescent compound, and the second blue emitting material layer includes a fluorescent compound and a phosphorescent compound. A difference between a second emission peak intensity of the fluorescent compound in the second blue emitting material layer and a second emission peak intensity of the fluorescent compound in the first blue emitting material layer is 0.1 or less.

公开(公告)号：US20220149296A1

公开(公告)日：2022-05-12

申请号：US17519234

申请日：2021-11-04

Applicant: LG DISPLAY CO., LTD.

Inventor： Ik-Rang CHOE ,  Hye-Gun RYU ,  Dong-Ryun LEE ,  Jun-Yun KIM

IPC: H01L51/00

Abstract: An organic light emitting diode (OLED) including at least one emitting material layer (EML) disposed between two electrodes and comprising a first compound including a fused hetero aromatic ring with at least one nitrogen atom and a second compound of a boron-based compound and an organic light emitting device including the OLED is disclosed. The first compound and the second compound may be the same emitting material layer or adjacently disposed emitting material layers. The OLED can lower its driving voltage and improve its luminous efficiency using the first and second compounds with adjusting their energy levels.

公开(公告)号：US20210163427A1

公开(公告)日：2021-06-03

申请号：US17103469

申请日：2020-11-24

Applicant: LG DISPLAY CO., LTD. ,  Soulbrain Co., Ltd

Inventor： Jun-Yun KIM ,  Hyong-Jong CHOI ,  Joong-Hwan YANG ,  Bo-Min SEO ,  Tae-Ryang HONG ,  Jin Hee KIM ,  Eun-Chul SHIN

IPC: C07D253/08 ,  H01L51/00

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 includes a triazine moiety of an electron acceptor and a fused hetero aromatic moiety of an electron donor separated from the triazine moiety. The organic compound includes the electron acceptor moiety and the electron donor moiety in a single molecule, thus charges can be moved in the molecule. Also, since the organic compound includes the rigid fused hetero aromatic ring, three dimensional conformation of the organic compound is limited, and therefore the compound may have excellent luminous efficiency and color purity.