公开(公告)号：US20190097139A1

公开(公告)日：2019-03-28

申请号：US16140850

申请日：2018-09-25

Applicant: LG Display Co., Ltd.

Inventor： Na-yeon LEE ,  Seung-Jae LEE ,  Jong-Kwan BIN

IPC: H01L51/00 ,  H01L51/50 ,  H01L51/52 ,  H01L27/32

Abstract: The present disclosure relates to a light-emitting diode (LED) in which an organic compound including an imidazolium-based cationic moiety and an amine-based anionic moiety substituted with a strong electron-withdrawing group such as a sulfonyl group or a cyano group is applied to a hole transfer layer, and a light-emitting device. By applying the organic compound according to the present disclosure to the hole transfer layer, an energy barrier between the hole transport layer and an emitting material layer is removed, and an LED having improved hole transport properties can be designed. Therefore, it is possible to realize and manufacture an LED and a light-emitting device, driven at a low voltage and having improved luminous efficiency.

公开(公告)号：US20190097151A1

公开(公告)日：2019-03-28

申请号：US16140784

申请日：2018-09-25

Applicant: LG Display Co., Ltd.

Inventor： Seung-Jae LEE ,  Jong-Kwan BIN ,  Na-Yeon LEE

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56

CPC classification number: H01L51/5004 ,  H01L27/3244 ,  H01L51/502 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5076 ,  H01L51/5084 ,  H01L51/5092 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/56 ,  H01L2251/5353 ,  H01L2251/5369

Abstract: A light emitting diode includes a first electrode and a second electrode facing the first electrode. The light emitting diode further includes an emitting material layer (EML) disposed between the first electrode and the second electrode, and an electron transport layer (ETL) adjacent the EML. The ETL includes a plurality of first inorganic particles having a first average particle size, and a plurality of second inorganic particles having a second average particle size greater than the first average particle size. The plurality of first inorganic particles may also have a first energy bandgap, and a plurality of second inorganic particles may also have a second energy bandgap smaller than the first energy bandgap.

公开(公告)号：US20180097184A1

公开(公告)日：2018-04-05

申请号：US15718980

申请日：2017-09-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Seung-Jae LEE ,  Jong-Kwan BIN ,  Bo-Min SEO ,  Hye-Ock CHOI

IPC: H01L51/00 ,  H01L27/32 ,  C07D401/12 ,  C07D409/12 ,  C07D405/12 ,  C07D213/38 ,  C07D239/26 ,  C07D251/24

CPC classification number: H01L51/0061 ,  C07D213/38 ,  C07D239/26 ,  C07D251/24 ,  C07D401/12 ,  C07D405/12 ,  C07D409/12 ,  H01L27/3244 ,  H01L51/0052 ,  H01L51/0058 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/5056 ,  H01L51/506 ,  H01L51/5064 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5096 ,  H01L51/5278

Abstract: The present invention provides an organic compound for an organic light emitting diode. The organic compound is represented by: The organic compound is capable of reducing a driving voltage of an organic light emitting diode by an excellent charge transporting property. The present invention also provides an organic light emitting diode and an organic light emitting display device including the organic compound.

公开(公告)号：US20190131557A1

公开(公告)日：2019-05-02

申请号：US16170938

申请日：2018-10-25

Applicant: LG Display Co., Ltd.

Inventor： Seung-Jae LEE ,  Jong-Kwan BIN ,  Na-Yeon LEE

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00

Abstract: According to principals as disclosed herein an organic, light emitting diode assembly is provided having a first electrode. An electron injection layer is adjacent to the first electrode. A first electron transport layer composed of inorganic material is adjacent to the electron injection layer. A second electron transport layer composed of organic material is adjacent to the first electron transport layer and in contact with an organic light emitting material layer. The organic light emitting material layer is in direct, abutting contact with the second electron transport layer. A hole transport layer is adjacent to the organic light emitting material layer and a second electrode is adjacent to the hole transport layer.