公开(公告)号：US20240147752A1

公开(公告)日：2024-05-02

申请号：US18476056

申请日：2023-09-27

Applicant: Samsung Display Co., Ltd.

Inventor： Hyangki Sung ,  Dalho Kim ,  Jongseok Han ,  Eunji Park ,  Heeseong Jeong

IPC: H10K50/17

CPC classification number: H10K50/171 ,  H10K2102/351

Abstract: Provided is a light-emitting device including a first electrode, a second electrode facing the first electrode, an emission layer between the first electrode and the second electrode, and an electron transport region between the emission layer and the second electrode, wherein the electron transport region includes an electron injection layer including a first material and a second material, the first material and the second material each independently include an alkali metal, an alkaline earth metal, a transition metal, a post-transition metal, a lanthanide metal, or a combination thereof, the second material does not include Mg, the first material and the second material are different from each other, and a surface energy of the second material is greater than a surface energy of the first material.

公开(公告)号：US20220320249A1

公开(公告)日：2022-10-06

申请号：US17584141

申请日：2022-01-25

Applicant: Samsung Display Co., Ltd.

Inventor： Hyangyul Kim ,  Youngtae Kim ,  Hyangki Sung ,  Heeseong Jeong ,  Sangmin Hong

IPC: H01L27/32

Abstract: A display apparatus includes: a conductive layer including a wire having a first edge and a second edge and extending in a first direction and a conductive pattern arranged outside the first edge of the wire; an organic insulating layer including a hole that overlaps the conductive pattern; a display element electrically connected to the conductive pattern through the hole, and including a pixel electrode, an emission layer, and an opposite electrode; and a pixel-defining layer covering an edge of the pixel electrode, overlapping the wire, and including an opening in which the emission layer is arranged, wherein the opening is divided by the wiring into a first area overlapping an outer side of the first edge of the wire and a second area overlapping an outer side of the second edge of the wire in a plan view, and the second area is larger than the first area.

公开(公告)号：US20210126065A1

公开(公告)日：2021-04-29

申请号：US16861488

申请日：2020-04-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Wonju Kwon ,  Hyangki Sung ,  Heeseong Jeong ,  Sangmin Hong

IPC: H01L27/32

Abstract: An organic light-emitting display apparatus includes a red pixel, a green pixel, and a blue pixel, each including: a first insulating layer on a substrate; a connection electrode on the first insulating layer; a second insulating layer on the first insulating layer; an organic light-emitting diode on the second insulating layer, the organic light-emitting diode including a pixel electrode, an intermediate layer including an organic emission layer, and an opposite electrode; a pixel defining layer covering an edge of the pixel electrode and including an opening exposing the pixel electrode, the opening defining an emission area; and a via hole defined in the second insulating layer and through which the pixel electrode is connected to the connection electrode, and a spacing distance between the emission area and the via hole is different in each of the red pixel, the green pixel, and the blue pixel.