公开(公告)号：US20210151703A1

公开(公告)日：2021-05-20

申请号：US17096616

申请日：2020-11-12

Applicant: LG Display Co., Ltd.

Inventor： Gyeong-Woo KIM ,  Hong-Seok CHOI ,  Seung-Ryong JOUNG ,  Yoon-Deok HAN ,  Jun-Ho LEE ,  Ji-Seon JANG

IPC: H01L51/50 ,  C09K11/06

Abstract: Disclosed are an organic light emitting device and a display device using the same in which a light emitting layer includes a host and a plurality of dopants. In the light emitting layer, energy is transferred from a host and other dopants to one dopant by energy transfer system, thus it is possible to increase luminous efficacy of a single color and to increase lifetime of emission.

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：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：US20230345748A1

公开(公告)日：2023-10-26

申请号：US18342585

申请日：2023-06-27

Applicant: LG Display Co., Ltd.

Inventor： Gyeong-Woo KIM ,  Hong-Seok CHOI ,  Seung-Ryong JOUNG ,  Yoon-Deok HAN ,  Jun-Ho LEE ,  Ji-Seon JANG

IPC: H10K50/11 ,  C09K11/06 ,  H10K50/12 ,  H10K50/13

CPC classification number: H10K50/11 ,  C09K11/06 ,  H10K50/12 ,  H10K50/13 ,  H10K2101/10

Abstract: Disclosed are an organic light emitting device and a display device using the same in which a light emitting layer includes a host and a plurality of dopants. In the light emitting layer, energy is transferred from a host and other dopants to one dopant by energy transfer system, thus it is possible to increase luminous efficacy of a single color and to increase lifetime of emission.

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：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：US20210066663A1

公开(公告)日：2021-03-04

申请号：US16999925

申请日：2020-08-21

Applicant: LG Display Co., Ltd.

Inventor： Seung-Ryong JOUNG ,  Hong-Seok CHOI ,  Yoon-Deok HAN ,  Gyeong-Woo KIM ,  Jun-Ho LEE ,  Ji-Seon JANG

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50 ,  G02B27/01

Abstract: Disclosed is a display panel configured such that, in a structure in which the distance between a display surface and a viewer is short, the structure between a reflective plate and a first electrode (an anode) is changed such that light having three or more color peak properties for all subpixels is transmitted through a second electrode (a cathode), whereby white expression as well as color expression is possible, and a head mounted display device including the same.