公开(公告)号：US20240237521A1

公开(公告)日：2024-07-11

申请号：US18240026

申请日：2023-08-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Gyeong-Woo KIM ,  Ji-Seon JANG ,  Joon-Beom IM ,  Suk-Young BAE ,  Han-Jin AHN ,  Jun-Yun KIM

IPC: H10K85/60 ,  C09K11/02 ,  C09K11/06 ,  H10K85/30 ,  H10K85/40

CPC classification number: H10K85/6572 ,  C09K11/02 ,  C09K11/06 ,  H10K85/346 ,  H10K85/40 ,  H10K50/12

Abstract: An organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first emitting part including a first blue emitting material layer and positioned between the first and second electrodes, the first blue emitting material layer including a first blue emitting layer and a second blue emitting layer, wherein the first blue emitting layer includes a first p-type host and a first n-type host, and the second blue emitting layer includes a second p-type host and a second n-type host, wherein one of the first p-type host and the second p-type host is a first compound represented by one of Formula 1a and Formula 1b, and wherein the other one of the first p-type host and the second p-type host is a second compound represented by one of Formula 3a and Formula 3b.

公开(公告)号：US20230165132A1

公开(公告)日：2023-05-25

申请号：US17976239

申请日：2022-10-28

Applicant: LG Display Co., Ltd.

Inventor： Suk-Young BAE ,  Dong-Ryun LEE ,  Jong-Uk KIM ,  Han-Jin AHN ,  Jun-Yun KIM

IPC: H01L51/00 ,  C07F5/02 ,  C09K11/06

CPC classification number: H01L51/008 ,  C07F5/027 ,  C09K11/06 ,  H01L51/5044

Abstract: An organic light emitting diode (OLED) and an organic light emitting device comprising the OLED are described. The OLED can comprise at least one emitting material (EML) disposed between two electrodes, where the EML can comprise a first compound comprising a fused ring having boron and oxygen and substituted with at least two fused hetero aromatic group, and a second compound comprising a fused ring having boron and nitrogen. The first compound and the second compound can be the same emitting material layer or be present in adjacently disposed emitting material layers. The luminous efficiency and luminous lifespan of the OLED can be improved by applying the first and second compounds, and adjusting their photoluminescence wavelength, absorbance wavelength and energy levels.

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：US20240179932A1

公开(公告)日：2024-05-30

申请号：US18385901

申请日：2023-10-31

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

Inventor： Ji-Seon JANG ,  Chi-Ho LEE ,  Suk-Young BAE ,  Han-Jin AHN ,  Jun-Yun KIM ,  Dae-Hyuk CHOI ,  Dong-Jun KIM ,  Yong-Woo KIM ,  Yong-Geun JUNG ,  Jin-Hwan SHIN ,  Seok-Hyeon YU

IPC: H10K50/12 ,  H10K50/13 ,  H10K50/844 ,  H10K85/30 ,  H10K85/40

CPC classification number: H10K50/12 ,  H10K50/13 ,  H10K50/844 ,  H10K85/346 ,  H10K85/40

Abstract: The present disclosure relates to an organic light emitting diode and an organic light emitting device including the same. The organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first blue emitting material layer including a first compound and a second compound and positioned between the first and second electrodes, wherein the first compound is represented by Formula 1, and the second compound is represented by Formula 3. According to an aspect of the present disclosure, it is allowed to provide an OLED and an organic light emitting device having high emitting efficiency and/or improved lifespan.

公开(公告)号：US20240172554A1

公开(公告)日：2024-05-23

申请号：US18237725

申请日：2023-08-24

Applicant: LG DISPLAY CO., LTD. ,  Research & Business Foundation SUNGKYUNKWAN UNIVERSITY

Inventor： Suk-Young BAE ,  Dong-Ryun LEE ,  Jong-Uk KIM ,  Han-Jin AHN ,  Jun-Yun KIM ,  Jun-Yeob LEE ,  Sook-Hee JEONG ,  Jin-Ho PARK

IPC: H10K85/40 ,  C09K11/06

CPC classification number: H10K85/40 ,  C09K11/06 ,  H10K50/12

Abstract: The present invention relates to an organic light emitting diode and an organic light emitting device including the organic light emitting diode. The organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first blue emitting material layer including a first compound, a second compound and a third compound and positioned between the first and second electrodes, wherein the first compound is represented by Formula 1, the second compound is represented by Formula 3, and the third compound is represented by Formula 5, and wherein in the first blue emitting material layer, a summation of a weight % of the first compound, a weight % of the second compound and a weight % of the third compound is 100%, and the weight % of each of the first and second compounds is greater than the weight % of the third compound.

公开(公告)号：US20230209992A1

公开(公告)日：2023-06-29

申请号：US17977603

申请日：2022-10-31

Applicant: LG DISPLAY CO., LTD.

Inventor： Han-Jin AHN ,  Gyeong-Woo KIM ,  Ji-Seon JANG ,  Joon-Beom IM ,  Jun-Yun KIM

IPC: H01L51/00 ,  C09K11/06

CPC classification number: H01L51/0087 ,  H01L51/0072 ,  H01L51/0094 ,  H01L51/008 ,  H01L51/0058 ,  C09K11/06 ,  H01L51/5016

Abstract: An organic light emitting diode can include a reflective electrode, a transparent electrode facing the reflective electrode, a first emitting part including a first emitting material layer, and a second emitting part including a second emitting material layer. The first emitting material layer can be a fluorescent emitting layer comprising a fourth compound as a fluorescent dopant. The second emitting material layer can be a phosphorescent emitting layer comprising a first compound as a phosphorescent dopant. Preferably, a ratio of a second emission peak intensity of the phosphorescent dopant to the first emission peak intensity of the phosphorescent dopant in the second emitting material layer is 0.5 or less. An organic light emitting device can include the organic light emitting diode and can be used in a display device or a lighting device.

公开(公告)号：US20230200228A1

公开(公告)日：2023-06-22

申请号：US17976394

申请日：2022-10-28

Applicant: LG Display Co., Ltd.

Inventor： Gyeong-Woo KIM ,  Joon-Beom IM ,  Han-Jin AHN ,  Jun-Yun KIM

IPC: H01L51/00

CPC classification number: H01L51/0067 ,  H01L51/0087 ,  H01L51/0058 ,  H01L51/008 ,  H01L51/0072 ,  H01L51/504

Abstract: An organic light emitting diode (OLED) is described, which comprises at least one emitting material (EML) disposed between two electrodes. The EML can comprise a first emitting material layer having a first compound and a second compound of phosphorescent material, and a second emitting material layer having a third compound with triplet-triplet-annihilation property and a fourth compound. Further, an organic light emitting device can comprise the OLED. With the luminous materials with adjusted excited singlet/triplet energy levels, the intensities of emission peaks and full-width at quarter maximum applied into the emitting material layer, the driving voltage of the OLED can be reduced and the luminous efficiency, blue index and luminous lifespan of the OLED can be enhanced.

公开(公告)号：US20240244857A1

公开(公告)日：2024-07-18

申请号：US18385197

申请日：2023-10-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Chi-Ho LEE ,  Gyeong-Woo KIM ,  Dong-Ryun LEE ,  Han-Jin AHN ,  Jun-Yun KIM

IPC: H10K50/11 ,  C09K11/06 ,  H10K85/30 ,  H10K85/40 ,  H10K85/60

CPC classification number: H10K50/11 ,  C09K11/06 ,  H10K85/346 ,  H10K85/40 ,  H10K85/658 ,  C09K2211/185

Abstract: The present disclosure relates to an organic light emitting diode, and an organic light emitting device including the same. An organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first emitting part including a first blue emitting material layer and positioned between the first and second electrodes, the first blue emitting material layer including a first blue emitting layer and a second blue emitting layer, wherein the second blue emitting layer is positioned between the first blue emitting layer and the second electrode, wherein the first blue emitting layer includes a first phosphorescent compound, and the second blue emitting layer includes a second phosphorescent compound and a first fluorescent compound, wherein each of the first and second phosphorescent compounds is represented by Formula 5, and wherein the first fluorescent compound is represented by Formula 7.

公开(公告)号：US20240180034A1

公开(公告)日：2024-05-30

申请号：US18367454

申请日：2023-09-12

Applicant: LG DISPLAY CO., LTD.

Inventor： Dong-Ryun LEE ,  Suk-Young BAE ,  Jong-Uk KIM ,  Han-Jin AHN ,  Jun-Yun KIM

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

CPC classification number: H10K85/658 ,  C09K11/06 ,  H10K85/346 ,  H10K85/6572 ,  H10K50/12

Abstract: The present invention relates to an organic light emitting diode and an organic light emitting device including the organic light emitting diode. The organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first blue emitting material layer including a first compound and a second compound and positioned between the first and second electrodes, wherein the first compound is represented by Formula 1, and the second compound is represented by Formula 3.