公开(公告)号：US11770955B2

公开(公告)日：2023-09-26

申请号：US17164680

申请日：2021-02-01

Applicant: LG Display Co., Ltd.

Inventor： Jaeseung Jang ,  Jaeil Song ,  DongHyuk Kim

IPC: H01L27/32 ,  H10K59/30 ,  H10K50/13 ,  H10K59/32 ,  H10K50/11 ,  H10K50/19 ,  H10K50/17 ,  H10K101/00 ,  H10K101/30 ,  H10K101/40

CPC classification number: H10K59/30 ,  H10K50/13 ,  H10K59/32 ,  H10K50/11 ,  H10K50/171 ,  H10K50/19 ,  H10K2101/00 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2101/90

Abstract: An organic light emitting display device is disclosed. The organic light emitting display device includes a first light emitting part between an anode and a cathode, the first light emitting part having a first light emitting layer, and a second light emitting part between the first light emitting part and the cathode, the second light emitting part having a second light emitting layer and a third light emitting layer, wherein the second light emitting layer includes a hole-type host and a first electron-type host, and the third light emitting layer includes a first electron-type host and a second electron-type host.

公开(公告)号：US10950665B2

公开(公告)日：2021-03-16

申请号：US16423951

申请日：2019-05-28

Applicant: LG Display Co., Ltd.

Inventor： Jaeseung Jang ,  Jaeil Song ,  DongHyuk Kim

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

Abstract: An organic light emitting display device is disclosed. The organic light emitting display device includes a first light emitting part between an anode and a cathode, the first light emitting part having a first light emitting layer, and a second light emitting part between the first light emitting part and the cathode, the second light emitting part having a second light emitting layer and a third light emitting layer, wherein the second light emitting layer includes a hole-type host and a first electron-type host, and the third light emitting layer includes a first electron-type host and a second electron-type host.