公开(公告)号：US20230217815A1

公开(公告)日：2023-07-06

申请号：US18079709

申请日：2022-12-12

Applicant: LG Display Co., Ltd.

Inventor： Wook SONG ,  Min Hyeong HWANG ,  Myeong Seon CHO ,  Chun Ki KIM ,  Sae Mi PARK ,  Young Jun YU ,  Jung Keun KIM ,  Byung Soo KIM ,  Sang Beom KIM

IPC: H10K85/60 ,  H10K59/35

CPC classification number: H01L51/0067 ,  H01L27/3211 ,  H01L51/0072 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/5072

Abstract: A light emitting device and a light emitting display including the same. The light emitting device includes an anode and a cathode facing each other, a first stack and a second stack disposed between the anode and the cathode, the first stack including a first electron transport layer comprising a first material represented by Formula 1, a first blue light emitting layer containing a boron-based compound emitting light having a wavelength of 430 nm to 480 nm, and a first electron-blocking layer including a second material including a spirofluorene group, and at least one hydrogen atom on at least one side of the spirofluorene group is substituted by deuterium, and the second stack including at least two phosphorescent light emitting layers emitting light having a longer wavelength than that of the light emitted by the first blue light emitting layer, and a charge generation layer.

公开(公告)号：US20230301175A1

公开(公告)日：2023-09-21

申请号：US17622101

申请日：2020-12-23

Applicant: LG DISPLAY CO., LTD.

Inventor： Dae Won RYU ,  In Bum SONG ,  Seung Hee YOON ,  Sang Beom KIM

IPC: H10K85/60 ,  H10K50/13 ,  H10K59/35 ,  C09K11/06

CPC classification number: H10K85/633 ,  C09K11/06 ,  H10K50/13 ,  H10K59/35 ,  H10K85/626 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K50/12

Abstract: The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; a first emitting material layer including a first host being an anthracene derivative and a first dopant being a pyrene derivative and positioned between the first and second electrodes; and a first electron blocking layer including an electron blocking material of a spirofluorene-substituted amine derivative and positioned between the first electrode and the first emitting material layer, wherein at least one of hydrogen atoms in the anthracene derivative and the pyrene derivative is deuterated.

公开(公告)号：US20220278282A1

公开(公告)日：2022-09-01

申请号：US17618234

申请日：2020-12-23

Applicant: LG DISPLAY CO., LTD.

Inventor： Dae Won RYU ,  In Bum SONG ,  Seung Hee YOON ,  Sang Beom KIM

IPC: H01L51/00 ,  C07C15/28 ,  C07D307/91 ,  C07D333/76 ,  C07D209/86 ,  C07D405/14 ,  C07D409/14 ,  C07C211/26 ,  C07C211/30 ,  C07D403/14 ,  C07D401/10 ,  C07D403/10 ,  C07D471/04 ,  C07D235/20 ,  C07D401/14

Abstract: The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; a first emitting material layer including a first host being an anthracene derivative and a first dopant being a pyrene derivative and positioned between the first and second electrodes; and a first electron blocking layer including an electron blocking material of an amine derivative including a polycyclic aryl group and positioned between the first electrode and the first emitting material layer, wherein at least one of hydrogen atoms in the anthracene derivative and the pyrene derivative is deuterated.

公开(公告)号：US20220255009A1

公开(公告)日：2022-08-11

申请号：US17614911

申请日：2020-12-23

Applicant: LG DISPLAY CO., LTD.

Inventor： Dae Won RYU ,  In Bum SONG ,  Seung Hee YOON ,  Sang Beom KIM

IPC: H01L51/00

Abstract: The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; a first emitting material layer including a first host being an anthracene derivative and a first dopant being a pyrene derivative and positioned between the first and second electrodes; and a first electron blocking layer including an electron blocking material of a heteroaryl-substituted amine derivative and positioned between the first electrode and the first emitting material layer, wherein at least one of hydrogen atoms in the anthracene derivative and the pyrene derivative is deuterated.

公开(公告)号：US20220223793A1

公开(公告)日：2022-07-14

申请号：US17614863

申请日：2020-12-23

Applicant: LG DISPLAY CO., LTD.

Inventor： Dae Won RYU ,  In Bum SONG ,  Seung Hee YOON ,  Sang Beom KIM

IPC: H01L51/00 ,  C07C15/28 ,  C09K11/06 ,  C07D307/91

Abstract: The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; and a first emitting material layer including a first host being an anthracene derivative and a first dopant being a pyrene derivative and positioned between the first and second electrodes, wherein at least one of an anthracene core of the first host and a pyrene core of the first dopant is deuterated.