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。

公开(公告)号：US20130092909A1

公开(公告)日：2013-04-18

申请号：US13648982

申请日：2012-10-10

Applicant: LG Display Co., Ltd.

Inventor： Mi-Young HAN ,  Chang-Je SUNG ,  Youn-Seok KAM ,  Shin-Han KIM

IPC: H01L51/52

CPC classification number: H01L51/5004 ,  H01L51/5016 ,  H01L51/504

Abstract: A device for achieving reduced driving voltage and enhanced color stability under high luminance conditions includes an anode and cathode arranged on a substrate to be opposite each other, a charge generation layer between the anode and the cathode, a first stack formed between the anode and the charge generation layer and including a first light emitting layer, and a second stack formed between the charge generation layer and the cathode and including a second light emitting layer in which first and second hosts are doped with phosphorescent dopant, a HOMO level of the first host is greater than that of the second host, and a LUMO level of the first host is greater than an LUMO level of the second host.

Abstract translation: 用于在高亮度条件下实现降低的驱动电压和增强的颜色稳定性的装置包括布置在基板上彼此相对的阳极和阴极，阳极和阴极之间的电荷产生层，形成在阳极和阴极之间的第一堆叠 电荷产生层并且包括第一发光层和形成在电荷产生层和阴极之间的第二堆叠，并且包括其中第一和第二主体掺杂有磷光掺杂剂的第二发光层，第一主体的HOMO能级 大于第二主机的LUMO级别，并且第一主机的LUMO级别大于第二主机的LUMO级别。

公开(公告)号：US20160307970A1

公开(公告)日：2016-10-20

申请号：US15195556

申请日：2016-06-28

Applicant: LG Display Co., Ltd.

Inventor： Youn-Seok KAM ,  Chang-Wook HAN ,  Hong-Seok CHOI ,  Sung-Hoon PIEH ,  Seok-Joon OH ,  Ki-Woog SONG

IPC: H01L27/32

CPC classification number: H01L27/3209 ,  H01L27/3213 ,  H01L27/322 ,  H01L51/002 ,  H01L51/0056 ,  H01L51/0058 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/0072 ,  H01L51/5044 ,  H01L51/5088 ,  H01L2251/5376

Abstract: An organic light emitting display device includes first and second electrodes facing each other on a substrate, a charge generation layer formed between the first and second electrodes, a first light emitting stack formed between the charge generation layer and the first electrode, and a second light emitting stack formed between the charge generation layer and the second electrode, wherein a hole injection layer of a light emitting stack to realize blue color of the first and second light emitting stacks is formed by doping a host formed of hexaazatriphenylene (HAT-CN) with 0.5% to less than 10% of a dopant formed of a hole transporting material based on a volume of the hole injection layer.

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电荷产生层，形成在电荷产生层和第一电极之间的第一发光叠层和第二光 形成在电荷产生层和第二电极之间的发光层，其中通过将由六氮杂三亚苯（HAT-CN）形成的主体掺杂到具有第一和第二发光堆的蓝色的发光层的空穴注入层， 基于空穴注入层的体积由空穴传输材料形成的掺杂剂的0.5％至小于10％。

公开(公告)号：US20140183494A1

公开(公告)日：2014-07-03

申请号：US14134149

申请日：2013-12-19

Applicant: LG Display Co., Ltd.

Inventor： Youn-Seok KAM ,  Chang-Wook HAN ,  Hong-Seok CHOI ,  Sung-Hoon PIEH ,  Seok-Joon OH ,  Ki-Woog SONG

IPC: H01L51/50

CPC classification number: H01L27/3209 ,  H01L27/3213 ,  H01L27/322 ,  H01L51/002 ,  H01L51/0056 ,  H01L51/0058 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/0072 ,  H01L51/5044 ,  H01L51/5088 ,  H01L2251/5376

Abstract: An organic light emitting display device includes first and second electrodes facing each other on a substrate, a charge generation layer formed between the first and second electrodes, a first light emitting stack formed between the charge generation layer and the first electrode, and a second light emitting stack formed between the charge generation layer and the second electrode, wherein a hole injection layer of a light emitting stack to realize blue color of the first and second light emitting stacks is formed by doping a host formed of hexaazatriphenylene (HAT-CN) with 0.5% to less than 10% of a dopant formed of a hole transporting material based on a volume of the hole injection layer.

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电荷产生层，形成在电荷产生层和第一电极之间的第一发光叠层和第二光 形成在电荷产生层和第二电极之间的发光层，其中通过将由六氮杂三亚苯（HAT-CN）形成的主体掺杂到具有第一和第二发光堆的蓝色的发光层的空穴注入层， 基于空穴注入层的体积由空穴传输材料形成的掺杂剂的0.5％至小于10％。