公开(公告)号：US20230320143A1

公开(公告)日：2023-10-05

申请号：US18295465

申请日：2023-04-04

Applicant: Samsung Display Co., Ltd.

Inventor： Dongha Lee ,  Seulgi Han

IPC: H10K59/124 ,  H10K71/00 ,  H10K59/121

CPC classification number: H10K59/124 ,  H10K71/00 ,  H10K59/1213 ,  H10K2102/351

Abstract: An organic light-emitting display apparatus includes a pixel electrode above a substrate, an insulating layer covering an edge of the pixel electrode and including an opening exposing a central portion of the pixel electrode, a first functional layer disposed on the pixel electrode exposed by the opening and including a convex upper surface, a second functional layer disposed on the first functional layer and including a planarized upper surface, an organic emission layer disposed on the second functional layer, and an opposite electrode disposed on the organic emission layer.

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：US20220223665A1

公开(公告)日：2022-07-14

申请号：US17477465

申请日：2021-09-16

Applicant: Samsung Display Co., Ltd.

Inventor： Dongha Lee ,  Jongjang Park ,  Seulgi Han

IPC: H01L27/32 ,  H01L51/56

Abstract: A method of manufacturing a display device includes forming a first electrode on a substrate, forming a bank layer on the first electrode, wherein the bank layer includes an opening portion exposing at least a portion of the first electrode, forming a first bank layer and a second bank layer by baking the bank layer, wherein the second bank layer is on the first bank layer and has liquid repellency, forming a first layer on the first electrode, and forming a third bank layer and a fourth bank layer by baking the first bank layer and the second bank layer, wherein the fourth bank layer is on the third bank layer and has liquid repellency, wherein the fourth bank layer is thinner than the second bank layer.

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：US11903263B2

公开(公告)日：2024-02-13

申请号：US17477465

申请日：2021-09-16

Applicant: Samsung Display Co., Ltd.

Inventor： Dongha Lee ,  Jongjang Park ,  Seulgi Han

IPC: H10K59/122 ,  H10K71/00 ,  H10K59/12

CPC classification number: H10K59/122 ,  H10K71/00 ,  H10K59/1201

Abstract: A method of manufacturing a display device includes forming a first electrode on a substrate, forming a bank layer on the first electrode, wherein the bank layer includes an opening portion exposing at least a portion of the first electrode, forming a first bank layer and a second bank layer by baking the bank layer, wherein the second bank layer is on the first bank layer and has liquid repellency, forming a first layer on the first electrode, and forming a third bank layer and a fourth bank layer by baking the first bank layer and the second bank layer, wherein the fourth bank layer is on the third bank layer and has liquid repellency, wherein the fourth bank layer is thinner than the second bank 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.