公开(公告)号：US20190165304A1

公开(公告)日：2019-05-30

申请号：US16116018

申请日：2018-08-29

Applicant: LG Display Co., Ltd.

Inventor： Seok-Hyun Kim ,  Eun-Jung Park ,  Tae-Shick Kim

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

Abstract: Disclosed is an organic light-emitting element and organic light-emitting display device using the same, which has light transmission, is capable of reducing the resistance of the element, and is reliable regardless of variation in temperature or environment.

公开(公告)号：US09786861B2

公开(公告)日：2017-10-10

申请号：US14465299

申请日：2014-08-21

Applicant: LG Display Co., Ltd.

Inventor： Shin-Han Kim ,  Hwa-Kyung Kim ,  Hong-Seok Choi ,  Mi-Young Han ,  Hye-Min Oh ,  Tae-Shick Kim ,  Seung-Hyun Kim

IPC: H01L51/00 ,  H01L51/50 ,  H01L27/32

CPC classification number: H01L51/5044 ,  H01L27/3209

Abstract: Disclosed herein is a white organic light emitting device including various emission layers with improved luminous efficiency, an increased color viewing angle, and low power consumption. The white organic light emitting device includes at least two charge generation layers and at least three stacks between a first electrode and a second electrode. The first stack includes an emission layer having a wavelength range of about 440 to about 470 nm, the second stack includes an emission layer having a wavelength range of about 530 to about 570 nm, and the third stack includes an emission layer having a wavelength range of about 590 to about 620 nm and an emission layer having a wavelength range of about 440 to about 470 nm.

公开(公告)号：US09425422B2

公开(公告)日：2016-08-23

申请号：US14023670

申请日：2013-09-11

Applicant: LG Display Co., Ltd.

Inventor： Shin-Han Kim ,  Hwa-Kyung Kim ,  Hong-Seok Choi ,  Gwi-Jeong Cho ,  Youn-Seok Kam ,  Mi-Young Han ,  Hye-Min Oh ,  Tae-Shick Kim ,  Seong-Su Jeon ,  Chi-Yul Song

IPC: H01L29/08 ,  H01L51/50

CPC classification number: H01L51/5024 ,  H01L51/504 ,  H01L2251/5384

Abstract: Disclosed is an organic light emitting display device with an enhanced light emission efficiency at high current and an enhancement in panel efficiency through prevention of a roll-off phenomenon. The organic light emitting display device includes first and second electrodes formed on a substrate facing each other. A hole injection layer, a hole transport layer, at least first and second light emitting layers, and an electron transport layer are sequentially stacked between the first and second electrodes. The first light emitting layer includes different hosts while being doped with the same dopant in different dosages. The first light emitting layer includes a first host and a second host, and the second light emitting layer includes the first host and a third host different from the second host. The first and second light emitting layers are doped with the same phosphorescent yellow-phosphorescent green dopant in the same dosage.

Abstract translation: 公开了一种在高电流下具有增强的发光效率并通过防止滚降现象提高面板效率的有机发光显示装置。 有机发光显示装置包括形成在彼此面对的基板上的第一和第二电极。 空穴注入层，空穴传输层，至少第一和第二发光层以及电子传输层依次层叠在第一和第二电极之间。 第一发光层包括不同的主体，同时以不同的剂量掺杂相同的掺杂剂。 第一发光层包括第一主体和第二主体，第二发光层包括第一主机和与第二主机不同的第三主机。 第一和第二发光层以相同的剂量掺杂相同的磷光黄磷光绿色掺杂剂。

公开(公告)号：US09048447B2

公开(公告)日：2015-06-02

申请号：US14062128

申请日：2013-10-24

Applicant: LG DISPLAY CO., LTD.

Inventor： Gwi-Jeong Cho ,  Jae-Man Lee ,  Jeong-Haeng Heo ,  So-Yeon Ahn ,  Tae-Shick Kim ,  Hee-Dong Choi

IPC: H01L29/08 ,  H01L35/24 ,  H01L51/00 ,  H01L51/50 ,  H01L51/52

CPC classification number: H01L51/5044 ,  H01L51/0054 ,  H01L51/50 ,  H01L51/506 ,  H01L51/52 ,  H01L51/5278

Abstract: An organic light emitting display device with improved lifespan is disclosed. The organic light emitting display device includes first and second electrodes facing each other on a substrate, at least two light emitting units formed between the first and second electrodes, an N-type charge generation layer and a P-type charge generation layer sequentially stacked between the light emitting units, and at least one auxiliary charge generation layer formed between at least any one of the P-type charge generation layer and the N-type charge generation layer and an emitting layer of the light emitting unit disposed on an upper or lower portion of the at least any one thereof and generating electrons and holes supplied to the emitting layer of the light emitting unit.

Abstract translation: 公开了一种寿命延长的有机发光显示装置。 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两个发光单元，N型电荷产生层和P型电荷产生层， 所述发光单元以及形成在所述P型电荷产生层和所述N型电荷产生层中的至少任何一个上的至少一个辅助电荷产生层以及设置在上部或下部的所述发光单元的发光层 并且产生提供给发光单元的发光层的电子和空穴。