公开(公告)号：US20230329040A1

公开(公告)日：2023-10-12

申请号：US17791123

申请日：2021-09-03

Applicant: LG Display Co., Ltd.

Inventor： Song Yi JEONG ,  Ho Sung KIM

IPC: H10K59/35 ,  H10K59/80 ,  H10K59/122 ,  H10K50/16

CPC classification number: H10K59/122 ,  H10K50/16 ,  H10K59/353 ,  H10K59/80521 ,  H10K2101/40

Abstract: A display apparatus according to an embodiment of the present invention may include a substrate; a plurality of sub-pixels disposed on the substrate; a plurality of anodes disposed in the plurality of sub-pixels; a bank disposed to cover ends of the plurality of anodes; an organic layer disposed on the plurality of anodes and the bank; a cathode disposed on the organic layer; a first pattern disposed in the bank or on the bank so that the organic layer has a step; and a second pattern disposed between the organic layer and the cathode so that a step of the cathode is smaller than the step of the organic layer.

公开(公告)号：US20150188075A1

公开(公告)日：2015-07-02

申请号：US14581839

申请日：2014-12-23

Applicant: LG Display Co., Ltd.

Inventor： Ho Sung KIM ,  Kwang Hyun KIM

IPC: H01L51/50 ,  H01L27/32

CPC classification number: H01L51/5064 ,  H01L27/3211 ,  H01L51/5004 ,  H01L51/5072 ,  H01L51/508 ,  H01L2251/55

Abstract: An organic light emitting display device is disclosed which includes: a first electrode including red, green and blue sub-pixel regions; a first hole injection layer disposed on the first electrode; a first hole transport layer disposed on the hole injection layer; second, third and fourth hole transport layers arranged on the first hole transport layer corresponding to the red, green and blue regions, respectively; an organic emission layer disposed on the second, third and fourth hole transport layers; an electron transport layer disposed on the organic emission layer; and a second electrode disposed on the electron transport layer, the second, third and fourth hole transport layers each having a hole mobility different from an electron mobility of the electron transport layer.

Abstract translation: 公开了一种有机发光显示装置，其包括：包括红色，绿色和蓝色子像素区域的第一电极; 设置在所述第一电极上的第一空穴注入层; 设置在空穴注入层上的第一空穴传输层; 分别对应于红色，绿色和蓝色区域布置在第一空穴传输层上的第二，第三和第四空穴传输层; 设置在所述第二，第三和第四空穴传输层上的有机发射层; 设置在有机发光层上的电子传输层; 以及设置在所述电子传输层上的第二电极，所述第二，第三和第四空穴传输层各自具有不同于所述电子传输层的电子迁移率的空穴迁移率。

公开(公告)号：US20240016031A1

公开(公告)日：2024-01-11

申请号：US18218460

申请日：2023-07-05

Applicant: LG Display Co., Ltd.

Inventor： Ho Sung KIM ,  In Seop JUNG

IPC: H10K59/80 ,  H10K59/122

CPC classification number: H10K59/80521 ,  H10K59/122

Abstract: A light emitting display device can include a plurality of light emitting portions disposed on a substrate and a non-light emitting portion between the light emitting portions; first electrodes respectively disposed at the plurality of light emitting portions, the first electrodes being spaced apart from each other; a first stack, a charge generation layer and a second stack disposed on the first electrodes, the charge generation layer being disposed between the first stack and the second stack; and a second electrode disposed on the second stack. Also, the second electrode is connected to the first charge generation layer through a connection portion at the non-light emitting portion.