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.

公开(公告)号：US20230200231A1

公开(公告)日：2023-06-22

申请号：US17976552

申请日：2022-10-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Ji-Ae LEE ,  Young-Ju RYU ,  Gi-Hwan LIM ,  Jun-Yun KIM

IPC: H01L51/00 ,  C09K11/06

CPC classification number: H01L51/0072 ,  H01L51/0085 ,  H01L51/008 ,  C09K11/06 ,  H01L2251/5376 ,  H01L51/5044

Abstract: An organic light emitting diode can include a reflective electrode, a transparent electrode facing the reflective electrode, and an organic light emitting layer including a first emitting part and a second emitting part and positioned between the reflective electrode and the transparent electrode. Each of the first and second emitting parts includes a phosphorescent emitting layer and a fluorescent emitting layer. In at least one of the first and second emitting parts, the fluorescent emitting layer is positioned to be closer to the transparent electrode than the phosphorescent emitting layer. An organic light emitting device can include the organic light emitting diode and can be a display device or a lighting device.

公开(公告)号：US20220209121A1

公开(公告)日：2022-06-30

申请号：US17524239

申请日：2021-11-11

Applicant: LG DISPLAY CO., LTD.

Inventor： Gyeong-Woo KIM ,  Ji-Seon JANG ,  Ik-Rang CHOE ,  Hye-Gun RYU ,  Han-Jin AHN ,  Jun-Yun KIM

IPC: H01L51/00 ,  C07F5/02 ,  C09K11/06 ,  C07D471/04

Abstract: An organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first emitting material layer including a first compound, a second compound and a third compound and positioned between the first and second electrodes, wherein an onset wavelength of the second compound is greater than an onset wavelength of the first compound and is smaller than an onset wavelength of the third compound, wherein a maximum emission wavelength of the second compound is smaller than a maximum emission wavelength of the first compound, and a maximum emission wavelength of the third compound is equal to or smaller than a maximum emission wavelength of the first compound, and wherein a full width at half maximum of each of the second and third compounds is smaller than a full width at half maximum of the first compound.

公开(公告)号：US20220149280A1

公开(公告)日：2022-05-12

申请号：US17519297

申请日：2021-11-04

Applicant: LG DISPLAY CO., LTD.

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

IPC: H01L51/00 ,  H01L51/52 ,  H01L51/50

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 ring of boron and oxygen as a nuclear atom and a second compound including a fused ring of born and nitrogen as a nuclear atom 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：US20220085299A1

公开(公告)日：2022-03-17

申请号：US17470807

申请日：2021-09-09

Applicant: LG Display Co., Ltd.

Inventor： Ji-Ae LEE ,  Bo-Min SEO ,  Jun-Yun KIM

IPC: H01L51/00

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, a second compound and a third compound and positioned between the first and second electrodes. An energy level of the first to third compounds satisfies a pre-determined condition. An organic light emitting device may include the organic light emitting diode.

公开(公告)号：US20200212309A1

公开(公告)日：2020-07-02

申请号：US16728273

申请日：2019-12-27

Applicant: LG Display Co., Ltd. ,  Soulbrain Co., Ltd.

Inventor： Hyong-Jong CHOI ,  Tae-Ryang HONG ,  Jun-Yun KIM ,  Jin Hee KIM ,  Ah-Rang LEE

IPC: H01L51/00 ,  C09K11/06

Abstract: The present disclosure provides an organic light emitting diode comprising a first electrode; a second electrode facing the first electrode; and an emitting material layer. The emitting material layer includes a p-type host, a n-type host and a phosphorescent dopant and positioned between the first electrode and the second electrode, wherein a first energy level of a HOMO of the p-type host is equal to or lower than a second energy level of a HOMO of the n-type host, and a difference between an energy level of a singlet state of the n-type host and an energy level of a triplet state of the n-type host is greater than 0.3 eV and smaller than 0.5 eV.

公开(公告)号：US20200185633A1

公开(公告)日：2020-06-11

申请号：US16690450

申请日：2019-11-21

Applicant: LG Display Co., Ltd.

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

IPC: H01L51/50 ,  H01L27/32 ,  C09K11/06

Abstract: An embodiment of the present disclosure provides an organic light emitting diode comprising a first electrode; a second electrode facing the first electrode; and a first emitting material layer including a first delayed fluorescent dopant and a first phosphorescent dopant and disposed between the first and second electrodes, wherein a percentage by weight of the first phosphorescent dopant with respect to the first delayed fluorescent dopant is equal to or less than 5.

公开(公告)号：US20200052226A1

公开(公告)日：2020-02-13

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: H01L51/00

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：US20180269408A1

公开(公告)日：2018-09-20

申请号：US15920353

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

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.