公开(公告)号：US20210305513A1

公开(公告)日：2021-09-30

申请号：US17260826

申请日：2019-12-21

Applicant: LG DISPLAY CO., LTD.

Inventor： Seung Hee YOON ,  In Bum SONG ,  Jin Ho PARK ,  Dong Hyeok LIM

IPC: H01L51/00 ,  C09K11/06

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 benzim-idazole-based compound. The organic light emitting diode has enhanced luminous efficiency as well as excellent luminous lifetime.

公开(公告)号：US20220209160A1

公开(公告)日：2022-06-30

申请号：US17336875

申请日：2021-06-02

Applicant: LG DISPLAY CO., LTD.

Inventor： Dong Hyeok LIM ,  Bo Seong KIM ,  Hwa Yong SHIN ,  Ji Hyung LEE

IPC: H01L51/50 ,  H01L27/32

Abstract: Discussed is a light emitting display device which enables a common layer having high hole conductivity among common layers in respective stacks to include a material having a high orientation factor value so as to prevent generation of leakage current between subpixels and ensure high efficiency and a long lifespan.

公开(公告)号：US20210320265A1

公开(公告)日：2021-10-14

申请号：US17260178

申请日：2019-12-21

Applicant: LG DISPLAY CO., LTD.

Inventor： In Bum SONG ,  Seung Hee YOON ,  Jin Ho PARK ,  Dong Hyeok LIM

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 an amine derivative and positioned between the first electrode and the first emitting material layer; and a first hole blocking layer including at least one of a first hole blocking material and a second hole blocking material 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, and wherein the first hole blocking material is an azine derivative, and the second hole blocking material is a benzimidazole derivative.

公开(公告)号：US20210280792A1

公开(公告)日：2021-09-09

申请号：US17260844

申请日：2019-12-21

Applicant: LG Display Co., Ltd.

Inventor： Seung Hee YOON ,  In Bum SONG ,  Jin Ho PARK ,  Dong Hyeok LIM

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 polycyclic aryl group, 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.