公开(公告)号：US20150002797A1

公开(公告)日：2015-01-01

申请号：US14292514

申请日：2014-05-30

Applicant: LG Display Co., Ltd.

Inventor： Seung-Kwang ROH ,  Woo-Young CHOI

IPC: G02F1/1337 ,  C09K19/54

CPC classification number: C09K19/54 ,  C09K19/52

Abstract: The present invention provides a liquid crystal material including: a liquid crystal molecule including an alkenyl group; a phenol-based antioxidant; and a light stabilizer for recycling the phenol-based antioxidant.

Abstract translation: 本发明提供一种液晶材料，其包括：含有烯基的液晶分子; 酚类抗氧化剂; 以及用于再循环苯酚类抗氧化剂的光稳定剂。

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.