公开(公告)号：US12016191B2

公开(公告)日：2024-06-18

申请号：US17341205

申请日：2021-06-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Soohyun Park ,  Donghoon Kwak ,  Seulgi Han

IPC: H01L51/50 ,  H01L27/32 ,  H10K50/11 ,  H10K50/15 ,  H10K50/17 ,  H10K59/122 ,  H10K59/35 ,  H10K101/40 ,  H10K102/00

CPC classification number: H10K50/15 ,  H10K50/11 ,  H10K50/17 ,  H10K59/122 ,  H10K59/35 ,  H10K2101/40 ,  H10K2102/351

Abstract: An electronic device includes a base layer, a first electrode disposed on the base layer, a pixel defining layer disposed on the base layer and having an opening that exposes an upper surface of the first electrode, a hole transport region disposed in the opening and having a thickness that gradually decreases from a center of the opening toward a side surface of the pixel defining layer, an emission layer disposed on the hole transport region and having a thickness that gradually increases from the center of the opening toward the side surface of the pixel defining layer, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region. This electronic device may increase a light-emitting area exhibiting uniform (or substantially uniform) light-emitting characteristics and exhibit high light-emitting efficiency.

公开(公告)号：US20230217676A1

公开(公告)日：2023-07-06

申请号：US18146944

申请日：2022-12-27

Applicant: Samsung Display Co., Ltd.

Inventor： Heunggyu Kim ,  Sehun Kim ,  Myoungjin Park ,  Soohyun Park ,  Eunho Song ,  Yonghan Lee ,  Changhee Lee ,  Junghwan Lim ,  Jaekook Ha

IPC: H10K50/16 ,  H10K71/00 ,  H10K59/35 ,  H10K85/60

CPC classification number: H01L51/508 ,  H01L51/56 ,  H01L27/3211 ,  H01L51/0056 ,  H01L51/0074 ,  H01L51/005 ,  H01L27/3244

Abstract: A light-emitting device having an electron transport layer that includes a first electron transport layer including an inorganic oxide and a second electron transport layer including an organic material is provided. The first electrode is a reflective electrode.

公开(公告)号：US20220093707A1

公开(公告)日：2022-03-24

申请号：US17322925

申请日：2021-05-18

Applicant: Samsung Display Co., Ltd.

Inventor： Dongha Lee ,  Seunguk Noh ,  Soohyun Park ,  Jongjang Park ,  Seoksoon Back ,  Seulgi Han

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

Abstract: An organic light-emitting display device including a driving element including an active pattern and a gate electrode, an insulation layer covering the driving element, a first diode electrode disposed on the insulation layer and electrically connected to the driving element, a pixel-defining layer disposed on the insulation layer and including a side surface defining an opening overlapping at least a portion of the first diode electrode, an edge-compensation part including an organic material and disposed in a peripheral area of the opening, an organic light-emitting layer disposed on the first diode electrode and the edge-compensation part, and a second diode electrode disposed on the organic light-emitting layer, in which the edge-compensation part includes an inclined surface contacting the organic light-emitting layer, and a taper angle of the inclined surface of the edge-compensation part is less than a taper angle of the side surface of the pixel-defining layer.

公开(公告)号：US11744116B2

公开(公告)日：2023-08-29

申请号：US17322925

申请日：2021-05-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongha Lee ,  Seunguk Noh ,  Soohyun Park ,  Jongjang Park ,  Seoksoon Back ,  Seulgi Han

IPC: H10K59/122 ,  H10K59/124 ,  H10K71/00 ,  H10K71/13

CPC classification number: H10K59/122 ,  H10K59/124 ,  H10K71/00 ,  H10K71/135

Abstract: An organic light-emitting display device including a driving element including an active pattern and a gate electrode, an insulation layer covering the driving element, a first diode electrode disposed on the insulation layer and electrically connected to the driving element, a pixel-defining layer disposed on the insulation layer and including a side surface defining an opening overlapping at least a portion of the first diode electrode, an edge-compensation part including an organic material and disposed in a peripheral area of the opening, an organic light-emitting layer disposed on the first diode electrode and the edge-compensation part, and a second diode electrode disposed on the organic light-emitting layer, in which the edge-compensation part includes an inclined surface contacting the organic light-emitting layer, and a taper angle of the inclined surface of the edge-compensation part is less than a taper angle of the side surface of the pixel-defining layer.