公开(公告)号：US20230157150A1

公开(公告)日：2023-05-18

申请号：US17962247

申请日：2022-10-07

Applicant: LG Display Co., Ltd.

Inventor： Hye-Li Min ,  In-Ae Shin ,  Gi-Hwan Lim ,  Jun-Yun Kim

IPC: H01L51/00 ,  C07D209/86 ,  C09K11/06 ,  C07F5/02

CPC classification number: H01L51/008 ,  C07D209/86 ,  C09K11/06 ,  H01L51/0072 ,  C07F5/027 ,  H01L51/5044

Abstract: An organic light emitting diode (OLED) including at least one emitting material layer (EML) disposed between two electrodes and including plural delayed fluorescent materials having at least one carbazolyl moiety and BODIPY-based fluorescent material and an organic light emitting device including the OLED are discussed. The delayed fluorescent material and the fluorescent material can be included in the same emitting material layer or adjacently disposed emitting material layers. The OLED can lower its driving voltage and improve its luminous efficiency utilizing the advantages of the delayed fluorescent materials and the fluorescent material by adjusting energy levels among the delayed fluorescent materials and the fluorescent material.

公开(公告)号：US20240237525A1

公开(公告)日：2024-07-11

申请号：US18504973

申请日：2023-11-08

Applicant: LG Display Co., Ltd.

Inventor： Jong-Uk Kim ,  Gi-Hwan Lim ,  In-Ae Shin ,  Jun-Yun Kim

IPC: H10K85/60 ,  C09K11/06

CPC classification number: H10K85/6572 ,  C09K11/06 ,  H10K85/6574 ,  H10K85/658 ,  H10K50/12

Abstract: The present disclosure relates to an organic light emitting diode comprising a first electrode; a second electrode facing the first electrode; and a first emitting part including a first red emitting material layer and positioned between the first and second electrode, the first red emitting material layer including a first delayed fluorescent compound, a second delayed fluorescent compound and a first fluorescent compound, wherein the first delayed fluorescent compound is represented by Formula 1, the second delayed fluorescent compound is represented by Formula 3, and the first fluorescent compound is represented by Formula 5.

公开(公告)号：US10942401B2

公开(公告)日：2021-03-09

申请号：US16688591

申请日：2019-11-19

Applicant: LG Display Co., Ltd.

Inventor： Gi-Hwan Lim ,  Min-Geun Choi

IPC: G02F1/1347 ,  G02F1/153 ,  G02F1/1337 ,  G02F1/1368

Abstract: A reflective liquid crystal display device includes: first to fourth substrates spaced apart from and parallel to each other; a first stack including a first pixel electrode, a first alignment layer, a first common electrode, a second alignment layer and a first cholesteric liquid crystal layer between the first and second alignment layers; a second stack including a second pixel electrode, a third alignment layer, a second common electrode, a fourth alignment layer and a second cholesteric liquid crystal layer between the third and fourth alignment layers; a third stack including a third pixel electrode, a fifth alignment layer, a third common electrode, a sixth alignment layer and a third cholesteric liquid crystal layer between the fifth and sixth alignment layers; and a fourth stack including a first mode electrode, an ion storing layer, an electrolyte layer, an electrochromic layer and a second mode electrode sequentially on the first substrate.

公开(公告)号：US11209704B2

公开(公告)日：2021-12-28

申请号：US17167671

申请日：2021-02-04

Applicant: LG Display Co., Ltd.

Inventor： Gi-Hwan Lim ,  Min-Geun Choi

IPC: G02F1/1347 ,  G02F1/153 ,  G02F1/1337 ,  G02F1/1368

Abstract: A reflective liquid crystal display device includes: first to fourth substrates spaced apart from and parallel to each other; a first stack including a first pixel electrode, a first alignment layer, a first common electrode, a second alignment layer and a first cholesteric liquid crystal layer between the first and second alignment layers; a second stack including a second pixel electrode, a third alignment layer, a second common electrode, a fourth alignment layer and a second cholesteric liquid crystal layer between the third and fourth alignment layers; a third stack including a third pixel electrode, a fifth alignment layer, a third common electrode, a sixth alignment layer and a third cholesteric liquid crystal layer between the fifth and sixth alignment layers; and a fourth stack including a first mode electrode, an ion storing layer, an electrolyte layer, an electrochromic layer and a second mode electrode sequentially on the first substrate.

公开(公告)号：US20200174297A1

公开(公告)日：2020-06-04

申请号：US16688591

申请日：2019-11-19

Applicant: LG Display Co., Ltd.

Inventor： Gi-Hwan Lim ,  Min-Geun Choi

IPC: G02F1/1347 ,  G02F1/153 ,  G02F1/1337

Abstract: A reflective liquid crystal display device includes: first to fourth substrates spaced apart from and parallel to each other; a first stack including a first pixel electrode, a first alignment layer, a first common electrode, a second alignment layer and a first cholesteric liquid crystal layer between the first and second alignment layers; a second stack including a second pixel electrode, a third alignment layer, a second common electrode, a fourth alignment layer and a second cholesteric liquid crystal layer between the third and fourth alignment layers; a third stack including a third pixel electrode, a fifth alignment layer, a third common electrode, a sixth alignment layer and a third cholesteric liquid crystal layer between the fifth and sixth alignment layers; and a fourth stack including a first mode electrode, an ion storing layer, an electrolyte layer, an electrochromic layer and a second mode electrode sequentially on the first substrate.