公开(公告)号：US20200220099A1

公开(公告)日：2020-07-09

申请号：US16820072

申请日：2020-03-16

Applicant: Samsung Display Co., Ltd.

Inventor： Ilseok Park ,  Sangyeol Kim ,  Jungyeon Kim ,  Byeongmin Jang ,  Woosik Jeon ,  Junkyung Cho

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/00 ,  H01L51/56 ,  H01L51/50

Abstract: A display panel includes an auxiliary electrode on a base substrate, a first electrode spaced from the auxiliary electrode, a first light emitting unit on the auxiliary electrode and the first electrode, an conductive thin film layer on the first light emitting unit, a second light emitting unit on the conductive thin film layer, a first contact hole through the conductive thin film layer to expose the auxiliary electrode, a insulating layer in the first contact hole, and a second electrode including a first electrode part and a second electrode part, the first electrode part being on the insulating layer in the first contact hole, and the second electrode part overlapping the first electrode and being on the second light emitting unit, in which the insulating layer is between the first electrode part and the conductive thin film layer.

公开(公告)号：US10600986B1

公开(公告)日：2020-03-24

申请号：US16593060

申请日：2019-10-04

Applicant: Samsung Display Co., Ltd.

Inventor： Ilseok Park ,  Sangyeol Kim ,  Jungyeon Kim ,  Byeongmin Jang ,  Woosik Jeon ,  Junkyung Cho

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/00 ,  H01L51/50 ,  H01L51/56

Abstract: A display panel includes an auxiliary electrode on a base substrate, a first electrode spaced from the auxiliary electrode, a first light emitting unit on the auxiliary electrode and the first electrode, an conductive thin film layer on the first light emitting unit, a second light emitting unit on the conductive thin film layer, a first contact hole through the conductive thin film layer to expose the auxiliary electrode, a insulating layer in the first contact hole, and a second electrode including a first electrode part and a second electrode part, the first electrode part being on the insulating layer in the first contact hole, and the second electrode part overlapping the first electrode and being on the second light emitting unit, in which the insulating layer is between the first electrode part and the conductive thin film layer.

公开(公告)号：US10170704B2

公开(公告)日：2019-01-01

申请号：US15147374

申请日：2016-05-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eonseok Oh ,  Sangyeol Kim ,  Jungyeon Kim ,  Minkyoung Jo ,  Bomi Choi

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

Abstract: An organic electroluminescent device includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region. The electron transport region includes a first electron transport layer on the emission layer; and a second electron transport layer on the first electron transport layer. An absolute value of difference between a highest occupied molecular orbital (HOMO) energy level of the emission layer and a HOMO energy level of the first electron transport layer is about 0.3 eV to about 1.5 eV.

公开(公告)号：US20170352707A1

公开(公告)日：2017-12-07

申请号：US15346564

申请日：2016-11-08

Applicant: Samsung Display Co., Ltd.

Inventor： Jungyeon Kim ,  Eonseok Oh ,  Woosik Jeon

IPC: H01L27/32

CPC classification number: H01L27/326 ,  H01L27/3209 ,  H01L27/3211 ,  H01L27/3213 ,  H01L27/322 ,  H01L27/3246 ,  H01L51/5228 ,  H01L51/5278

Abstract: A display panel including first and second sub pixel electrodes, a first light emitting unit, first and second charge generation layers, a second light emitting unit, and an upper electrode. The first light emitting unit is provided with a first contact hole. The first charge generation layer includes a first contact part being in the first contact hole and coupled to a portion of the first sub pixel electrode exposed by the first contact hole, and a first extension part extending from the first contact part and being on the first light emitting unit. The second charge generation layer and the second light emitting unit are provided with a second contact hole. The upper electrode includes a first upper electrode part being in the second contact hole and coupled to a second contact part of the second charge generation layer exposed by the second contact hole.

公开(公告)号：US10020461B2

公开(公告)日：2018-07-10

申请号：US15646362

申请日：2017-07-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ilseok Park ,  Sangyeol Kim ,  Jungyeon Kim ,  Byeongmin Jang ,  Woosik Jeon ,  Junkyung Cho

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/00 ,  H01L51/50 ,  H01L51/56

CPC classification number: H01L51/5228 ,  H01L27/3209 ,  H01L27/3246 ,  H01L51/0096 ,  H01L51/5044 ,  H01L51/5206 ,  H01L51/56 ,  H01L2251/301 ,  H01L2251/5392 ,  H01L2251/558

Abstract: A display panel includes an auxiliary electrode on a base substrate, a first electrode spaced from the auxiliary electrode, a first light emitting unit on the auxiliary electrode and the first electrode, an conductive thin film layer on the first light emitting unit, a second light emitting unit on the conductive thin film layer, a first contact hole through the conductive thin film layer to expose the auxiliary electrode, a insulating layer in the first contact hole, and a second electrode including a first electrode part and a second electrode part, the first electrode part being on the insulating layer in the first contact hole, and the second electrode part overlapping the first electrode and being on the second light emitting unit, wherein the insulating layer is between the first electrode part and the conductive thin film layer.

公开(公告)号：US09935161B2

公开(公告)日：2018-04-03

申请号：US15346564

申请日：2016-11-08

Applicant: Samsung Display Co., Ltd.

Inventor： Jungyeon Kim ,  Eonseok Oh ,  Woosik Jeon

IPC: H01L29/20 ,  H01L33/00 ,  H01L27/32

CPC classification number: H01L27/326 ,  H01L27/3209 ,  H01L27/3211 ,  H01L27/3213 ,  H01L27/322 ,  H01L27/3246 ,  H01L51/5228 ,  H01L51/5278

Abstract: A display panel including first and second sub pixel electrodes, a first light emitting unit, first and second charge generation layers, a second light emitting unit, and an upper electrode. The first light emitting unit is provided with a first contact hole. The first charge generation layer includes a first contact part being in the first contact hole and coupled to a portion of the first sub pixel electrode exposed by the first contact hole, and a first extension part extending from the first contact part and being on the first light emitting unit. The second charge generation layer and the second light emitting unit are provided with a second contact hole. The upper electrode includes a first upper electrode part being in the second contact hole and coupled to a second contact part of the second charge generation layer exposed by the second contact hole.

公开(公告)号：US10991903B2

公开(公告)日：2021-04-27

申请号：US16820072

申请日：2020-03-16

Applicant: Samsung Display Co., Ltd.

Inventor： Ilseok Park ,  Sangyeol Kim ,  Jungyeon Kim ,  Byeongmin Jang ,  Woosik Jeon ,  Junkyung Cho

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/00 ,  H01L51/50 ,  H01L51/56

Abstract: A display panel includes an auxiliary electrode on a base substrate, a first electrode spaced from the auxiliary electrode, a first light emitting unit on the auxiliary electrode and the first electrode, an conductive thin film layer on the first light emitting unit, a second light emitting unit on the conductive thin film layer, a first contact hole through the conductive thin film layer to expose the auxiliary electrode, a insulating layer in the first contact hole, and a second electrode including a first electrode part and a second electrode part, the first electrode part being on the insulating layer in the first contact hole, and the second electrode part overlapping the first electrode and being on the second light emitting unit, in which the insulating layer is between the first electrode part and the conductive thin film layer.

公开(公告)号：US10439161B2

公开(公告)日：2019-10-08

申请号：US16020572

申请日：2018-06-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ilseok Park ,  Sangyeol Kim ,  Jungyeon Kim ,  Byeongmin Jang ,  Woosik Jeon ,  Junkyung Cho

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/00 ,  H01L27/32 ,  H01L51/56

Abstract: A display panel includes an auxiliary electrode on a base substrate, a first electrode spaced from the auxiliary electrode, a first light emitting unit on the auxiliary electrode and the first electrode, an conductive thin film layer on the first light emitting unit, a second light emitting unit on the conductive thin film layer, a first contact hole through the conductive thin film layer to expose the auxiliary electrode, a insulating layer in the first contact hole, and a second electrode including a first electrode part and a second electrode part, the first electrode part being on the insulating layer in the first contact hole, and the second electrode part overlapping the first electrode and being on the second light emitting unit, wherein the insulating layer is between the first electrode part and the conductive thin film layer.

公开(公告)号：US10297652B2

公开(公告)日：2019-05-21

申请号：US15942308

申请日：2018-03-30

Applicant: Samsung Display Co., Ltd.

Inventor： Jungyeon Kim ,  Eonseok Oh ,  Woosik Jeon

IPC: H01L27/32 ,  H01L51/52

Abstract: A display panel including first and second sub pixel electrodes, a first light emitting unit, first and second charge generation layers, a second light emitting unit, and an upper electrode. The first light emitting unit is provided with a first contact hole. The first charge generation layer includes a first contact part being in the first contact hole and coupled to a portion of the first sub pixel electrode exposed by the first contact hole, and a first extension part extending from the first contact part and being on the first light emitting unit. The second charge generation layer and the second light emitting unit are provided with a second contact hole. The upper electrode includes a first upper electrode part being in the second contact hole and coupled to a second contact part of the second charge generation layer exposed by the second contact hole.

公开(公告)号：US20180226455A1

公开(公告)日：2018-08-09

申请号：US15942308

申请日：2018-03-30

Applicant: Samsung Display Co., Ltd.

Inventor： Jungyeon Kim ,  Eonseok Oh ,  Woosik Jeon

IPC: H01L27/32

CPC classification number: H01L27/326 ,  H01L27/3209 ,  H01L27/3211 ,  H01L27/3213 ,  H01L27/322 ,  H01L27/3246 ,  H01L51/5228 ,  H01L51/5278

Abstract: A display panel including first and second sub pixel electrodes, a first light emitting unit, first and second charge generation layers, a second light emitting unit, and an upper electrode. The first light emitting unit is provided with a first contact hole. The first charge generation layer includes a first contact part being in the first contact hole and coupled to a portion of the first sub pixel electrode exposed by the first contact hole, and a first extension part extending from the first contact part and being on the first light emitting unit. The second charge generation layer and the second light emitting unit are provided with a second contact hole. The upper electrode includes a first upper electrode part being in the second contact hole and coupled to a second contact part of the second charge generation layer exposed by the second contact hole.