公开(公告)号：US09184405B2

公开(公告)日：2015-11-10

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: H01L51/00 ,  H01L51/50 ,  H01L27/32

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：US20140183475A1

公开(公告)日：2014-07-03

申请号：US14097675

申请日：2013-12-05

Applicant: LG DISPLAY CO., LTD.

Inventor： Ki-Woog Song ,  Chang-Wook Han ,  Hong-Seok Choi ,  Sung-Hoon Pieh ,  Jeong-Dae Seo ,  Seok-Joon Oh ,  Youn-Seok Kam

IPC: H01L51/50

CPC classification number: H01L51/5044 ,  H01L27/3213 ,  H01L51/5004 ,  H01L51/5278 ,  H01L2251/552

Abstract: An organic light emitting display device includes a first electrode and a second electrode disposed on a substrate opposite to each other, a first stack including a hole injection layer, a first hole transport layer, a first light emitting layer, and a first electron transport layer sequentially stacked on the first electrode, a second stack including a second hole transport layer, a second light emitting layer, and a second electron transport layer sequentially stacked between the first stack and the second electrode, and a charge generation layer disposed between the first stack and the second stack and including an N-type charge generation layer and a P-type charge generation layer to control charge balance between the first and second stacks. The P-type charge generation layer is doped with 1% to 20% of a hole transport material based on a volume of the P-type charge generation layer.

Abstract translation: 有机发光显示装置包括第一电极和设置在彼此相对的基板上的第二电极，第一堆叠包括空穴注入层，第一空穴传输层，第一发光层和第一电子传输层 依次堆叠在第一电极上，第二堆叠包括依次堆叠在第一堆叠和第二电极之间的第二空穴传输层，第二发光层和第二电子传输层，以及电荷产生层，设置在第一堆叠 和第二堆叠，并且包括N型电荷产生层和P型电荷产生层，以控制第一和第二堆叠之间的电荷平衡。 基于P型电荷产生层的体积，P型电荷产生层掺杂1％至20％的空穴传输材料。

公开(公告)号：US11005061B2

公开(公告)日：2021-05-11

申请号：US14097675

申请日：2013-12-05

Applicant: LG DISPLAY CO., LTD.

Inventor： Ki-Woog Song ,  Chang-Wook Han ,  Hong-Seok Choi ,  Sung-Hoon Pieh ,  Jeong-Dae Seo ,  Seok-Joon Oh ,  Youn-Seok Kam

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

Abstract: An organic light emitting display device includes a first electrode and a second electrode disposed on a substrate opposite to each other, a first stack including a hole injection layer, a first hole transport layer, a first light emitting layer, and a first electron transport layer sequentially stacked on the first electrode, a second stack including a second hole transport layer, a second light emitting layer, and a second electron transport layer sequentially stacked between the first stack and the second electrode, and a charge generation layer disposed between the first stack and the second stack and including an N-type charge generation layer and a P-type charge generation layer to control charge balance between the first and second stacks. The P-type charge generation layer is doped with 1% to 20% of a hole transport material based on a volume of the P-type charge generation layer.

公开(公告)号：US10157966B2

公开(公告)日：2018-12-18

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 ,  H01L51/50 ,  H01L51/00

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.

公开(公告)号：US09431626B2

公开(公告)日：2016-08-30

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 ,  H01L51/00 ,  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：US20150155513A1

公开(公告)日：2015-06-04

申请号：US14557720

申请日：2014-12-02

Applicant: LG DISPLAY CO., LTD.

Inventor： Sung-Hoon Pieh ,  Chang-Wook Han ,  Seok-Joon Oh ,  Ki-Woog Song ,  Tae-Shick Kim ,  Hee-Dong Choi ,  Seung-Hyun Kim ,  Seong-Su Jeon ,  Chi-Yul Song

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

CPC classification number: H01L27/3209 ,  H01L51/0055 ,  H01L51/5278 ,  H01L2251/5376

Abstract: An organic light emitting device containing a multilayer stack structure including n stacks between an anode and a cathode is described, wherein the respective stacks comprise a hole transport layer, a light emitting layer and an electron transport layer, an n-type charge generation layer and a p-type charge generation layer respectively provided between the different adjacent stacks, wherein the p-type charge generation layer comprises an indenofluorenedione derivative represented by Formula 1 or an imine derivative represented by Formula 2 or 3.

Abstract translation: 描述了包含在阳极和阴极之间包括n个叠层的多层堆叠结构的有机发光器件，其中各个堆叠包括空穴传输层，发光层和电子传输层，n型电荷产生层和 分别设置在不同的相邻叠层之间的p型电荷产生层，其中p型电荷产生层包含由式1表示的茚并芴二酮衍生物或由式2或3表示的亚胺衍生物。