公开(公告)号：US20220059793A1

公开(公告)日：2022-02-24

申请号：US17393870

申请日：2021-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： Namsu KANG ,  Dongkyu LEE ,  Minkyung KIM ,  Minho PARK ,  Huiju PARK ,  Jongwon LEE ,  Hyunshik LEE

IPC: H01L51/50 ,  C09K11/02 ,  C09K11/06

Abstract: A light-emitting device includes a first electrode, a second electrode, m emitting units, and m−1 charge generation layers. The m emitting units each include a hole transport region, an emission layer, and an electron transport region. At least one emission layer of the m emitting units includes a first emission layer and a second emission layer, and at least one hole transport region adjacent to a p-type charge generation layer includes a multi-layered hole transport layer consisting of a first non-doped layer, a doped layer, and a second non-doped layer. The first non-doped layer and the second non-doped layer each independently consist of a hole transport material, the doped layer includes a hole transport material and a p-dopant, and the hole transport region adjacent to the first electrode does not include the multi-layered hole transport layer. An electronic apparatus including the light-emitting device is also provided.

公开(公告)号：US20190091637A1

公开(公告)日：2019-03-28

申请号：US16144302

申请日：2018-09-27

Applicant: SAMSUNG DISPLAY CO., LTD. ,  DMS CO., LTD.

Inventor： Myung-ki LEE ,  Hyunsoo MOON ,  Jongwon LEE ,  Sunwoo KANG ,  Yongseok PARK

IPC: B01F3/22 ,  C07D403/04 ,  H01L51/00 ,  C07D401/14 ,  B01F3/12

Abstract: An organic material purification composition, a mixed composition, and a method of purifying an organic material, the organic material purification composition including an ionic liquid in which a cation and an anion are combined; and an organic solvent, wherein the organic solvent includes an alcohol or a ketone.

公开(公告)号：US20170212625A1

公开(公告)日：2017-07-27

申请号：US15413607

申请日：2017-01-24

Applicant: Samsung Display Co., Ltd

Inventor： Jongwon LEE ,  Jongoh KIM ,  Jeong-Young KIM ,  Sooguy RHO ,  Juyong PARK

IPC: G06F3/041 ,  G02F1/1343 ,  G02F1/1333

CPC classification number: G06F3/0412 ,  G02F1/133345 ,  G02F1/13338 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/13439 ,  G02F1/1368 ,  G02F2001/133519 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2203/01 ,  G06F3/044 ,  G06F2203/04103

Abstract: A touch display apparatus includes a first substrate, a touch electrode, an insulating pattern, a second substrate and a liquid crystal layer. The touch electrode is disposed on a first surface of the first substrate. The insulating pattern is disposed on the touch electrode. The insulating pattern has a refractive index same as a refractive index of the touch electrode. The second substrate faces a second surface of the first substrate opposite to the first surface of the first substrate. The liquid crystal layer is disposed between the first substrate and the second substrate.