公开(公告)号：US20200212147A1

公开(公告)日：2020-07-02

申请号：US16725785

申请日：2019-12-23

Applicant: LG Display Co., Ltd.

Inventor： Kyu-Il HAN ,  Nam-Seok YOO ,  Jin-Ho PARK ,  Mi-Na KIM ,  Hyung-Won PARK ,  Jung-Mo CHO ,  Yu-Ri PARK ,  Hyoung-Min KIM ,  Seung-Ho SON

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  H01L51/56 ,  H01L25/18 ,  H01L25/00 ,  H04N5/225

Abstract: Disclosed is a display device. In accordance with the display device, before an organic stack of a light-emitting diode is formed, a sticker is attached to a substrate, while a camera hole-forming portion and a margin area around the same are present, to form the organic stack, and the sticker and components on top of the sticker, such as the organic stack, are removed, so that the edge of the organic stack can be aligned without any additional process using separate masks and the reliability of the display device can be improved due to the provision of the organic stack at a location spaced apart from the camera hole by the margin area.

公开(公告)号：US20230209859A1

公开(公告)日：2023-06-29

申请号：US17981171

申请日：2022-11-04

Applicant: LG Display Co., Ltd.

Inventor： Jeong-Dae SEO ,  Shin-Han KIM ,  Min-Surk HYUNG ,  Kyu-Il HAN ,  Jin-Ho PARK ,  Seung-Kwang ROH ,  Sun-Kap KWON

IPC: H01L51/50 ,  C07D471/14 ,  H01L51/00

CPC classification number: H01L51/5072 ,  H01L51/5004 ,  C07D471/14 ,  H01L51/0067

Abstract: An organic light emitting diode includes a first emitting part including a first emitting material layer (EML) and a first electron transporting layer (ETL), a second emitting part including a second EML and between the first emitting part and the second electrode, an n-type charge generation layer (CGL) contacting the first ETL and between the first ETL and the second emitting part, and a p-type CGL contacting the n-type CGL and between the n-type CGL and the second emitting part. The first ETL includes a first compound, and the n-type CGL includes a second compound and an n-type dopant. A lowest unoccupied molecular orbital (LUMO) energy level of the first compound can be higher than a LUMO energy level of the second compound.

公开(公告)号：US20200006458A1

公开(公告)日：2020-01-02

申请号：US16453420

申请日：2019-06-26

Applicant: LG Display Co., Ltd.

Inventor： Dong-Hyeok LIM ,  Song-Yi JEONG ,  Kyu-Il HAN ,  Nam-Seok YOO ,  Yu-Ri PARK

IPC: H01L27/32

Abstract: A light-emitting display device includes a substrate having a plurality of subpixels; a first electrode provided in each of the subpixels; a bank defining an emission part in each of the subpixels and having an upper surface that has a larger degree of surface roughness than an upper surface of the first electrode; a first common layer over the subpixels and covering the first electrode and the bank; a light-emitting layer on the first common layer and corresponding to the emission part of each of the subpixels; and a second common layer and a second electrode stacked on the light-emitting layer over the plurality of subpixels.