公开(公告)号：US20210367164A1

公开(公告)日：2021-11-25

申请号：US17290591

申请日：2019-12-21

Applicant: LG DISPLAY CO., LTD.

Inventor： In Bum SONG ,  Seung Hee YOON ,  Gwi Jeong CHO ,  So Yeon AHN ,  Yoo Yi SON ,  Tae Shick 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, a second host and a blue dopant and positioned between the first and second electrodes; 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; and a first hole blocking layer including a first hole blocking material of an azine derivative and positioned between the second electrode and the first emitting material layer, wherein the first host is an anthracene derivative, and the second host is a deuterated anthracene derivative.

公开(公告)号：US20170279059A1

公开(公告)日：2017-09-28

申请号：US15618017

申请日：2017-06-08

Applicant: LG Display Co., Ltd.

Inventor： Mi-Young HAN ,  Chang Wook HAN ,  Tae Il KUM ,  Gwi Jeong CHO ,  Tae Shick KIM ,  Se Ung KIM ,  Hee Dong CHOI

IPC: H01L51/50 ,  H01L51/52

CPC classification number: H01L51/504 ,  H01L51/5044 ,  H01L51/5265 ,  H01L51/5278

Abstract: Disclosed is a white organic light emitting device for enhancing emission efficiency and a color viewing angle or a color reproduction rate. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, a second emission part on the first emission part, the second emission part having a second emission layer, and a third emission part on the second emission part, the third emission part having a third emission layer. At least two emission layers of the first to third emission layers emit lights having a same color to enhance emission efficiency and a color viewing angle, and the at least two emission layers are adjacent to each other.

公开(公告)号：US20210384436A1

公开(公告)日：2021-12-09

申请号：US17283791

申请日：2019-12-21

Applicant: LG DISPLAY CO., LTD.

Inventor： Seung Hee YOON ,  In Bum SONG ,  Gwi Jeong CHO ,  So Yeon AHN ,  Yoo Yi SON

IPC: H01L51/00

Abstract: The present disclosure relates to an organic light emitting diode that includes at least one emitting material layer including an anthracene-based host and a boron-based dopant, at least one electron blocking layer including an amine-based compound substituted with at least one fused aromatic or hetero aromatic ring, and optionally at least one hole blocking layer including an azine-based compound or a benzimidazole-based compound. The organic light emitting diode has enhanced luminous efficiency as well as excellent luminous lifetime.

公开(公告)号：US20240260464A1

公开(公告)日：2024-08-01

申请号：US18599051

申请日：2024-03-07

Applicant: LG DISPLAY CO., LTD.

Inventor： In Bum SONG ,  Seung Hee YOON ,  Gwi Jeong CHO ,  So Yeon AHN ,  Yoo Yi SON ,  Tae Shick KIM

IPC: H10K85/60 ,  H10K50/12 ,  H10K50/18 ,  H10K101/00

CPC classification number: H10K85/6572 ,  H10K85/622 ,  H10K85/624 ,  H10K85/626 ,  H10K85/633 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6574 ,  H10K85/6576 ,  H10K50/12 ,  H10K50/18 ,  H10K2101/90

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, a second host and a blue dopant and positioned between the first and second electrodes; 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; and a first hole blocking layer including a first hole blocking material of an azine derivative and positioned between the second electrode and the first emitting material layer, wherein the first host is an anthracene derivative, and the second host is a deuterated anthracene derivative.

公开(公告)号：US20180212178A1

公开(公告)日：2018-07-26

申请号：US15926888

申请日：2018-03-20

Applicant: LG Display Co., Ltd.

Inventor： Mi-Young HAN ,  Chang Wook HAN ,  Tae Il KUM ,  Gwi Jeong CHO ,  Tae Shick KIM ,  Se Ung KIM ,  Hee Dong CHOI

IPC: H01L51/50 ,  H01L51/52

CPC classification number: H01L51/504 ,  H01L51/5044 ,  H01L51/5265 ,  H01L51/5278

Abstract: Disclosed is a white organic light emitting device for enhancing emission efficiency and a color viewing angle or a color reproduction rate. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, a second emission part on the first emission part, the second emission part having a second emission layer, and a third emission part on the second emission part, the third emission part having a third emission layer. At least two emission layers of the first to third emission layers emit lights having a same color to enhance emission efficiency and a color viewing angle, and the at least two emission layers are adjacent to each other.