公开(公告)号：US20190006631A1

公开(公告)日：2019-01-03

申请号：US16022081

申请日：2018-06-28

Applicant: LG Display Co., Ltd.

Inventor： JiYoung KIM ,  SeUng KIM ,  JungSoo PARK

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

CPC classification number: H01L51/5278 ,  H01L27/3244 ,  H01L51/5016 ,  H01L51/504 ,  H01L51/5044 ,  H01L2251/5376 ,  H01L2251/5384 ,  H01L2251/558

Abstract: An organic light-emitting diode includes a first electrode, a first light-emitting unit (EL unit) disposed on the first electrode and including a first organic light-emitting layer, a first charge generating layer on the first EL unit, a second EL unit disposed on the first charge generating layer and including a second organic light-emitting layer, a third organic light-emitting layer and a fourth organic light-emitting layer, a second charge generating layer on the second EL unit, a third EL unit disposed on the second charge generating layer and including a fifth organic light-emitting layer, and a second electrode on the third EL unit. A dopant concentration of the third organic light-emitting layer is greater than a dopant concentration of the fourth organic light-emitting layer. An organic light emitting display device can include the organic light-emitting diode.

公开(公告)号：US20180076418A1

公开(公告)日：2018-03-15

申请号：US15814194

申请日：2017-11-15

Applicant: LG DISPLAY CO., LTD.

Inventor： Gwijeong CHO ,  ChangWook HAN ,  Taeil KUM ,  Taeshick KIM ,  Heedong CHOI ,  JiYoung KIM ,  Mingyu LEE ,  TaeSeok LIM

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

CPC classification number: H01L51/5278 ,  H01L27/3206 ,  H01L27/3209 ,  H01L27/3244 ,  H01L51/5044 ,  H01L2251/558

Abstract: An organic light emitting display device can include a first electrode on a substrate; a first emission part on the first electrode, the first emission part including a first emission layer; a second emission part on the first emission part, the second emission part including a second emission layer; a third emission part on the second emission part, the third emission part including a third emission layer; and a second electrode on the third emission part, in which a first thickness between the substrate and the first emission layer, a second thickness between the first emission layer and the second emission layer, a third thickness between the second emission layer and the third emission layer, and a fourth thickness between the third emission layer and the second electrode are different from each other, and the first, second emission, and third emission parts include at least one organic layer.

公开(公告)号：US20170077434A1

公开(公告)日：2017-03-16

申请号：US15169269

申请日：2016-05-31

Applicant: LG DISPLAY CO., LTD.

Inventor： JiYoung KIM ,  Jaeil SONG ,  Younseok KAM ,  Taeshick KIM

IPC: H01L51/50 ,  H01L51/52

CPC classification number: H01L51/504 ,  H01L27/3209 ,  H01L51/5036 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5278 ,  H01L2251/5384 ,  H01L2251/556

Abstract: Discussed is an organic light emitting display device. The organic light emitting display device according to an embodiment includes a first emission part between a first electrode and a second electrode and a second emission part on the first emission part. The first emission part includes a first hole transport layer, a first emission layer, and a first electron transport layer, and the second emission part includes a second hole transport layer, a second emission layer, and a second electron transport layer. The second emission layer includes at least two zones including a hole-type host and an electron-type host, and a zone among the at least two zones closer to the first electrode than the second electrode, a ratio of the electron-type host is higher than a ratio of the hole-type host in the zone.

Abstract translation: 讨论的是有机发光显示装置。 根据实施例的有机发光显示装置包括在第一发射部分上的第一电极和第二电极之间的第一发射部分和第二发射部分。 第一发射部分包括第一空穴传输层，第一发射层和第一电子传输层，第二发射部分包括第二空穴传输层，第二发射层和第二电子传输层。 第二发射层包括至少两个包括孔型主体和电子型主体的区域，以及比第二电极更靠近第一电极的至少两个区域中的区域，电子型主体的比例 高于该区域中的孔型主机的比率。

公开(公告)号：US20160164042A1

公开(公告)日：2016-06-09

申请号：US14960918

申请日：2015-12-07

Applicant: LG DISPLAY CO., LTD.

Inventor： Gwijeong CHO ,  ChangWook HAN ,  Taeil KUM ,  Taeshick KIM ,  Heedong CHOI ,  JiYoung KIM ,  Mingyu LEE ,  TaeSeok LIM

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5278 ,  H01L27/3206 ,  H01L27/3209 ,  H01L27/3244 ,  H01L51/5044 ,  H01L2251/558

Abstract: Discussed is an organic light emitting display device. The organic light emitting display device according to an embodiment includes a first electrode and a second electrode on a substrate to be opposite to each other and at least three emission parts between the first electrode and the second electrode. A first distance between the substrate and the first emission layer, a second distance between the first emission layer and the second emission layer, a third distance between the second emission layer and the third emission layer, and a fourth distance between the third emission layer and the second electrode are different from each other.

Abstract translation: 讨论的是有机发光显示装置。 根据实施例的有机发光显示装置包括彼此相对的基板上的第一电极和第二电极以及第一电极和第二电极之间的至少三个发射部分。 基板与第一发射层之间的第一距离，第一发射层和第二发射层之间的第二距离，第二发射层和第三发射层之间的第三距离，以及第三发射层和第三发射层之间的第四距离 第二电极彼此不同。