公开(公告)号：US20130105843A1

公开(公告)日：2013-05-02

申请号：US13661265

申请日：2012-10-26

Applicant: LG Display CO., LTD.

Inventor： Se-Hee LEE ,  Sun-Kap KWON

IPC: H01L33/60

CPC classification number: C23C14/24 ,  C23C14/50 ,  C23C14/542 ,  H01L51/5012 ,  H01L51/5036 ,  H01L51/5218 ,  H01L51/5265 ,  H01L51/56

Abstract: There is provided a light-emitting diode including: a first electrode including a reflective metal layer and a transparent conductive material layer formed on the reflective metal layer; an emitting material layer formed on the first electrode and including a light-emitting layer formed with a host and first and second dopants; and a second electrode formed on the emitting material layer and being a semi-transparent electrode, wherein a first wavelength corresponding to a peak value of a photo luminescence (PL) spectrum of the first dopant is shorter than a second wavelength corresponding to a peak value of an electro luminescence (EL) spectrum of the first dopant, and a third wavelength corresponding to a peak value of a PL spectrum of the second dopant is longer than a fourth wavelength corresponding to a peak value of an EL spectrum of the second dopant.

Abstract translation: 提供了一种发光二极管，包括：第一电极，其包括形成在反射金属层上的反射金属层和透明导电材料层; 形成在第一电极上并且包括形成有主体和第一和第二掺杂剂的发光层的发光材料层; 以及形成在所述发光材料层上并且是半透明电极的第二电极，其中对应于所述第一掺杂剂的光致发光（PL）光谱的峰值的第一波长短于对应于峰值的第二波长 的第一掺杂剂的电致发光（EL）光谱和对应于第二掺杂剂的PL光谱的峰值的第三波长比对应于第二掺杂剂的EL光谱的峰值的第四波长长。

公开(公告)号：US20220173323A1

公开(公告)日：2022-06-02

申请号：US17539410

申请日：2021-12-01

Applicant: LG Display Co., Ltd.

Inventor： Young-Jun YU ,  Sang-Beom KIM ,  Hyun-Chul CHOI ,  Ji-Ho BAEK ,  In-Bum SONG ,  Jeong-Dae SEO ,  Sun-Kap KWON

IPC: H01L51/00 ,  C09K11/06 ,  H01L51/56 ,  H01L51/50

Abstract: An organic light emitting diode and an organic light emitting device containing the same are provided. The organic light emitting diode includes at least two emitting parts each of which includes independently an emitting material layer. Each of the emitting material layers includes independently an anthracene-based host having different deuterium substitution rates. The organic light emitting device includes the organic light emitting diode. Hosts with different deuterium substitution rates are introduced into each organic emitting material layer to improve luminous efficiency and luminous lifespan of the organic light emitting diode and the organic light emitting device.

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：US20140167015A1

公开(公告)日：2014-06-19

申请号：US14109084

申请日：2013-12-17

Applicant: LG DISPLAY CO., LTD.

Inventor： Se-Hee LEE ,  Kwan-Soo KIM ,  Seok-Jong LEE ,  Jin-Ho PARK ,  Sun-Kap KWON

IPC: H01L51/50

CPC classification number: H01L51/504 ,  H01L27/3211 ,  H01L51/0058 ,  H01L51/0072 ,  H01L51/0077 ,  H01L51/0081 ,  H01L51/5012 ,  H01L51/5064 ,  H01L51/5218 ,  H01L51/5234 ,  H01L51/5265 ,  H01L2251/5384

Abstract: An organic light emitting display device includes a first electrode formed on a substrate and being a reflective electrode, a second electrode facing the first electrode and being a semi-transparent electrode, and red, green and blue emission layers formed between the first and second electrodes, wherein a maximum electroluminescent peak of the redemission layer and a maximum photoluminescence peak of a host included in the red emission layer satisfy Equation 1 below: REDELλmax−RHPLλmax≧120 nm   wherein REDELλmax is a maximum electroluminescent peak of the red emission layer, and RHPLλmax is a maximum photoluminescence peak of a red host included in the red emission layer.

Abstract translation: 有机发光显示装置包括形成在基板上并且是反射电极的第一电极，面对第一电极并且是半透明电极的第二电极，以及形成在第一和第二电极之间的红色，绿色和蓝色发射层 其中红色发射层中包含的发射层的最大电致发光峰和最大光致发光峰满足下面的等式1：REDELλmax-RHPLλmax≥120nm<等式1>其中REDELλmax是红色发射的最大电致发光峰 层，RHPLλmax是包含在红色发射层中的红色主体的最大光致发光峰。