公开(公告)号：US20210013266A1

公开(公告)日：2021-01-14

申请号：US17025470

申请日：2020-09-18

Applicant: LG Display Co., Ltd

Inventor： Kang-Ju LEE ,  Seung-Ryong JOUNG ,  Seong-Su JEON ,  Tae-Shick KIM

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

Abstract: An organic light emitting diode display device includes an overcoating layer on a substrate having an emitting area and a non-emitting area and including a plurality of convex portions and a plurality of concave portions; a first electrode on the overcoating layer; a light emitting layer on the first electrode; and a second electrode on the light emitting layer, wherein the light emitting layer includes first, second and third emitting material layers sequentially under the second electrode, and wherein the first emitting material layer emits a first light of a first wavelength, the second emitting material layer emits the first light of the first wavelength, and the third emitting material layer emits a second light of a second wavelength different from the first wavelength.

公开(公告)号：US20200058709A1

公开(公告)日：2020-02-20

申请号：US16539694

申请日：2019-08-13

Applicant: LG Display Co., Ltd

Inventor： Kang-Ju LEE ,  Seung-Ryong JOUNG ,  Seong-Su JEON ,  Tae-Shick KIM

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

Abstract: An organic light emitting diode display device includes: an overcoating layer on a substrate having an emitting area and a non-emitting area and including a plurality of convex portions and a plurality of concave portions; a first electrode on the overcoating layer; a light emitting layer on the first electrode and including a first emitting material layer; and a second electrode on the light emitting layer, wherein the light emitting layer includes first, second and third emitting material layers sequentially under the second electrode, and wherein the first emitting material layer emits a first light of a first wavelength, the second emitting material layer emits the first light of the first wavelength, and the third emitting material layer emits a second light of a second wavelength different from the first wavelength.

公开(公告)号：US20200058708A1

公开(公告)日：2020-02-20

申请号：US16536209

申请日：2019-08-08

Applicant: LG Display Co., Ltd

Inventor： Ji-Hyang JANG ,  Won-Hoe KOO ,  Tae-Shick KIM

IPC: H01L27/32 ,  H01L51/52

Abstract: Various embodiments provide an organic light emitting diode display device that includes a substrate having an emitting area and a non-emitting area; an overcoating layer on the substrate and including a convex portion and a concave portion. The convex portion includes a bottom surface portion, a top surface portion and a side surface portion between the bottom surface portion and the top surface portion. The organic light emitting diode further includes a first electrode on the overcoating layer; a light emitting layer on the first electrode; and a second electrode on the light emitting layer. The side surface portion is a main emission region having a first emission spectrum and the concave portion is an auxiliary emission region having a second emission spectrum different from the first emission spectrum. The main emission region and the auxiliary emission region are an effective emission region.

公开(公告)号：US20140124766A1

公开(公告)日：2014-05-08

申请号：US14073709

申请日：2013-11-06

Applicant: LG DISPLAY CO., LTD.

Inventor： Ki-Woog SONG ,  Sung-Hoon PIEH ,  Seok-Joon OH ,  Youn-Seok KAM ,  Dong-Hyuk KIM ,  Seon-Keun YOO ,  Tae-Shick KIM

IPC: H01L51/50

CPC classification number: H01L51/5024 ,  H01L27/3209 ,  H01L51/5004 ,  H01L51/5016 ,  H01L51/504 ,  H01L2251/5376 ,  H01L2251/5384

Abstract: An organic light emitting display device includes first and second electrodes facing each other on a substrate, at least one emission layer formed between the first and second electrodes, a hole transport layer formed between the first electrode and the emission layer, and an electron transport layer formed between the second electrode and the emission layer, wherein the emission layer includes a first emission mixed layer formed on the hole transport layer, the first emission mixed layer including a first hole-type host and a first phosphorescent dopant, and a second emission mixed layer formed between the first emission mixed layer and the electron transport layer, the second emission mixed layer including a first electron-type host and a second phosphorescent dopant.

Abstract translation: 有机发光显示装置包括在基板上彼此面对的第一和第二电极，形成在第一和第二电极之间的至少一个发射层，形成在第一电极和发射层之间的空穴传输层，以及电子传输层 形成在第二电极和发射层之间，其中发射层包括形成在空穴传输层上的第一发射混合层，第一发射混合层包括第一孔型主体和第一磷光掺杂剂，第二发射混合层 形成在第一发射混合层和电子传输层之间的第二发射混合层，第二发射混合层包括第一电子型主体和第二磷光掺杂剂。