公开(公告)号：US20180062104A1

公开(公告)日：2018-03-01

申请号：US15673325

申请日：2017-08-09

Applicant: LG Display Co., Ltd.

Inventor： Sun Kap KWON ,  Kwan Soo KIM ,  Kyu Il HAN ,  Kwang Hyun KIM ,  Mi Na KIM

IPC: H01L51/50 ,  H01L51/52

CPC classification number: H01L51/5092 ,  H01L51/504 ,  H01L51/5228 ,  H01L51/5231 ,  H01L51/5234 ,  H01L51/5253 ,  H01L51/5265 ,  H01L2251/558

Abstract: An organic light-emitting display device has improved transmittance and UV light reliability by optimizing the thickness and material of a cathode. An organic light-emitting display device comprises an organic light-emitting element on a substrate, the organic light-emitting element including an anode, an organic light emitting layer, and a cathode, an organic layer between the substrate and the organic light-emitting element, and an auxiliary layer adjacent to the cathode and including a material having electron injection ability, such that the influence of UV lights on the OLED device is reduced, thereby improving the efficiency and lifespan of the organic light-emitting element.

公开(公告)号：US20240260355A1

公开(公告)日：2024-08-01

申请号：US18475773

申请日：2023-09-27

Applicant: LG Display Co., Ltd.

Inventor： Chang Hwan KWAK ,  Yun Hee CHOI ,  Sun Kap KWON ,  Jin Ho PARK

IPC: H10K59/131

CPC classification number: H10K59/131

Abstract: A light emitting display device includes a substrate including a display area including a plurality of sub-pixels and a non-display area surrounding the display area, a plurality of first electrodes provided in the plurality of sub-pixels, a second electrode facing the plurality of first electrodes and extending over the entire display area and a part of the non-display area, an interlayer including a plurality of stacks provided between the plurality of first electrodes and the second electrode and a charge generation layer between the plurality of stacks, a first connection electrode provided in the non-display area and connected to the second electrode, and a second connection electrode disposed closer to the display area than the first connection electrode and connected to the charge generation layer, thus stabilizing the potential of a common layer having high mobility by using a connection electrode to prevent lateral leakage current caused by the common layer.

公开(公告)号：US20240260299A1

公开(公告)日：2024-08-01

申请号：US18529524

申请日：2023-12-05

Applicant: LG Display Co., Ltd. ,  POSTECH Research and Business Development Foundation

Inventor： Kwang Jong KIM ,  Mi Kyung PARK ,  Sun Kap KWON ,  Gi Seong RYU ,  Yong Young NOH

IPC: H10K50/155 ,  H10K59/12

CPC classification number: H10K50/155 ,  H10K59/1201

Abstract: Discussed is a light emitting device including a first electrode and a second electrode facing each other, a hole transport layer, a first emission layer, and an electron transport layer sequentially disposed between the first electrode and the second electrode. In the transport layer, a first material of a metal halide and a second material of an n-type inorganic compound are included. The second material is included as a dopant in the first material. The hole transport layer can contain no organic material and can be amorphous.