公开(公告)号：US20140091289A1

公开(公告)日：2014-04-03

申请号：US14036163

申请日：2013-09-25

Applicant: LG Display Co., Ltd.

Inventor： Jeong-Haeng HEO ,  Jae-Man LEE ,  Gwi-Jeong CHO ,  So-Yeon AHN

IPC: H01L51/50

CPC classification number: H01L51/5064 ,  H01L27/3209 ,  H01L51/5044 ,  H01L51/5072 ,  H01L2251/5384

Abstract: An organic light emitting display device includes first and second electrodes facing each other on a substrate, a first stack including a first hole transport layer, a second hole transport layer, a first emitting layer, and a first electron transport layer, the layers being sequentially stacked on the first electrode, a second stack including a third hole transport layer, a fourth hole transport layer, a second emitting layer including at least two hosts and a single dopant and having at least three emitting areas, and a second electron transport layer, the layers being sequentially stacked between the first stack and the second electrode, wherein the second emitting layer includes a first emitting area including a material of the fourth hole transport layer, a second emitting area including a material of the second electron transport layer, and a third emitting area including the at least two hosts.

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，包括第一空穴传输层，第二空穴传输层，第一发光层和第一电子传输层的第一堆叠，所述层依次 堆叠在第一电极上的第二堆叠，包括第三空穴传输层，第四空穴传输层，包括至少两个主体的第二发光层和具有至少三个发射区域的单个掺杂剂的第二堆叠和第二电子传输层， 所述层依次堆叠在所述第一堆叠和所述第二电极之间，其中所述第二发光层包括包括所述第四空穴传输层的材料的第一发射区域，包括所述第二电子传输层的材料的第二发射区域，以及 包括至少两个主机的第三发射区域。

公开(公告)号：US20170309686A1

公开(公告)日：2017-10-26

申请号：US15649550

申请日：2017-07-13

Applicant: LG Display Co., Ltd.

Inventor： Jeong-Haeng HEO ,  Jeong-Dae SEO

IPC: H01L27/32 ,  H01L51/50

CPC classification number: H01L27/3209 ,  H01L27/322 ,  H01L51/504 ,  H01L51/5056 ,  H01L2251/558

Abstract: An organic light emitting display device includes first and second electrodes facing each other on a substrate, a charge generation layer formed between first and second electrodes, a first light emitting unit including a first emission layer formed between the first electrode and the charge generation layer, a hole transport layer supplying holes from the first electrode to the first emission layer, and a second light emitting unit including a second emission layer formed between the second electrode and the charge generation layer, a hole transport layer supplying holes from the charge generation layer to the second emission layer, wherein a total thickness of the hole transport layer of the first light emitting unit is greater than that of the hole transport layer of the second light emitting unit.

公开(公告)号：US20140183496A1

公开(公告)日：2014-07-03

申请号：US14135426

申请日：2013-12-19

Applicant: LG Display Co., Ltd.

Inventor： Jeong-Haeng HEO ,  Jeong-Dae SEO

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/56

CPC classification number: H01L27/3209 ,  H01L27/322 ,  H01L51/504 ,  H01L51/5056 ,  H01L2251/558

Abstract: An organic light emitting display device includes first and second electrodes facing each other on a substrate, a charge generation layer formed between first and second electrodes, a first light emitting unit including a first emission layer formed between the first electrode and the charge generation layer, a hole transport layer supplying holes from the first electrode to the first emission layer, and a second light emitting unit including a second emission layer formed between the second electrode and the charge generation layer, a hole transport layer supplying holes from the charge generation layer to the second emission layer, wherein a total thickness of the hole transport layer of the first light emitting unit is greater than that of the hole transport layer of the second light emitting unit.

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，包括形成在第一电极和电荷产生层之间的第一发射层的第一发光单元， 从第一电极向第一发射层提供空穴的空穴传输层，以及包括形成在第二电极和电荷产生层之间的第二发射层的第二发光单元，从电荷产生层向空穴传输层提供空穴的空穴传输层 第二发光层，其中第一发光单元的空穴传输层的总厚度大于第二发光单元的空穴传输层的总厚度。