公开(公告)号：US20220328582A1

公开(公告)日：2022-10-13

申请号：US17673680

申请日：2022-02-16

Applicant: Samsung Display Co., Ltd.

Inventor： JOONGU LEE ,  HYE JIN GWARK ,  ARONG KIM ,  JAEIK KIM ,  JUNGSUN PARK ,  HEEMIN PARK ,  DUCKJUNG LEE ,  YEONHWA LEE ,  KYU HWAN HWANG

IPC: H01L27/32 ,  H01L51/52

Abstract: A display device includes a base layer, a circuit layer on the base layer, and a plurality of light emitting units on the circuit layer. Each of the light emitting units includes a lower electrode, a pixel definition layer on the lower electrode, the pixel definition layer having a pixel opening to expose the lower electrode, a functional layer on the lower electrode, the functional layer including a light emitting layer, an upper electrode on the functional layer, and an encapsulation layer on the upper electrode. At least one light emitting unit from among the plurality of light emitting units is at a different layer from other light emitting units from among the plurality of light emitting units in a thickness direction, and the pixel openings of the plurality of light emitting units do not overlap each other.

公开(公告)号：US20240204142A1

公开(公告)日：2024-06-20

申请号：US18223050

申请日：2023-07-18

Applicant: Samsung Display Co., Ltd.

Inventor： JUNGSUN PARK ,  HYE JIN GWARK ,  JAEIK KIM ,  HWI KIM ,  DUCKJUNG LEE ,  YEONHWA LEE ,  JOONGU LEE

IPC: H01L33/42 ,  H01L25/075 ,  H01L25/16 ,  H01L33/62

CPC classification number: H01L33/42 ,  H01L25/0753 ,  H01L25/167 ,  H01L33/62

Abstract: A display device includes a substrate, a transistor disposed on the substrate, a power electrode disposed on the substrate, a pixel electrode disposed on the transistor, a light emitting layer disposed on each of the pixel electrode and the power electrode, and a common electrode disposed on the light emitting layer. The power electrode includes a stem part extending in a first direction and at least one first branch part protruding from the stem part in a second direction crossing the first direction in a plan view. The first branch part has a shape in which a width decreases as a distance from the stem part increases in a plan view.

公开(公告)号：US20240074273A1

公开(公告)日：2024-02-29

申请号：US18317341

申请日：2023-05-15

Applicant: Samsung Display Co., Ltd.

Inventor： DA-HEE JEONG ,  DUCKJUNG LEE

IPC: H10K59/35 ,  H10K39/34 ,  H10K59/12

CPC classification number: H10K59/353 ,  H10K39/34 ,  H10K59/1201

Abstract: A display panel includes a first unit pixel, and a second unit pixel adjacent to each other in a first direction. The first unit pixel includes a first light receiving device, a (1-1)-th to a (1-4)-th light emitting device disposed in a first and a second diagonal direction, a (1-5)-th and a (1-6)-th light emitting device disposed in the first direction, and a (1-7)-th and a (1-8)-th light emitting device disposed in the second direction from the first light receiving device. The second unit pixel includes a second light receiving device, a (2-1)-th to a (2-4)-th light emitting device disposed in the first and the second diagonal direction, a (2-5)-th and a (2-6)-th light emitting device disposed in the second direction, and a (2-7)-th and a (2-8)-th light emitting device disposed in the first direction from the second light receiving device.

公开(公告)号：US20240301542A1

公开(公告)日：2024-09-12

申请号：US18402248

申请日：2024-01-02

Applicant: Samsung Display Co., Ltd.

Inventor： JEONGKUK KIM ,  DUCKJUNG LEE ,  WONJE CHO

IPC: C23C14/04

CPC classification number: C23C14/042

Abstract: A method for manufacturing a mask assembly includes disposing a preliminary mask assembly including a frame having a frame opening and an open sheet having a plurality of first openings and including a first portion and a second portion, welding a preliminary unit mask to the first portion of the open sheet after stretching the preliminary unit mask on the preliminary mask assembly, welding the preliminary unit mask to the second portion of the open sheet, forming a plurality of unit masks by emitting laser onto the preliminary unit mask overlapping the second portion of the open sheet, and forming, in the plurality of unit masks, a plurality of deposition openings overlapping the plurality of first openings by emitting laser. The first portion overlaps the frame, and the second portion extends from the first portion and is disposed between the plurality of first openings.

公开(公告)号：US20240266489A1

公开(公告)日：2024-08-08

申请号：US18522563

申请日：2023-11-29

Applicant: Samsung Display Co., LTD.

Inventor： Yeon Hwa LEE ,  HYE JIN GWARK ,  Jae Ik KIM ,  HWI KIM ,  JUNGSUN PARK ,  DUCKJUNG LEE ,  Joon Gu LEE

IPC: H01L33/62 ,  H01L25/075 ,  H01L33/56

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L33/56 ,  H01L2933/005

Abstract: A display device according to an embodiment includes a display area and a non-display area, an external common voltage line formed in the non-display area, a common voltage line formed in the display area and connecting a portion and another portion of the external common voltage line, a plurality of pixels positioned in the display area and including a first electrode and an emission layer, and a second electrode positioned on the plurality of pixels. The common voltage line has a multi-layered structure including a first layer, a second layer, a third layer, and a reinforced layer. The reinforced layer is positioned between the second layer and the third layer, the first layer, the second layer, and the third layer include a metal, and the reinforced layer includes an inorganic material or an organic material.

公开(公告)号：US20220081753A1

公开(公告)日：2022-03-17

申请号：US17196639

申请日：2021-03-09

Applicant: Samsung Display Co., Ltd.

Inventor： JI-HEE SON ,  YOUNGMIN MOON ,  DUCKJUNG LEE ,  MINHO MOON ,  SEUNGYONG SONG ,  SEUL LEE ,  SUNGSOON IM

IPC: C23C14/04 ,  H01L51/56 ,  C23C14/34

Abstract: An embodiment provides a deposition apparatus including a mask frame, an opening sheet, a deposition mask, and an electrostatic chuck. In the mask frame, a first opening part is defined. The opening sheet is disposed on the mask frame. In the opening sheet, a second opening part overlapping the first opening part is defined. The deposition mask is disposed on the opening sheet. In the deposition mask, a plurality of third opening parts overlapping the second opening part are defined. The electrostatic chuck is disposed on the deposition mask and on which a substrate is disposed. The substrate is disposed on a surface of the electrostatic chuck, and AC power is applied to the deposition mask.

公开(公告)号：US20250102904A1

公开(公告)日：2025-03-27

申请号：US18888542

申请日：2024-09-18

Applicant: Samsung Display Co., LTD.

Inventor： JINWOO LEE ,  JEONGKUK KIM ,  DUCKJUNG LEE ,  SUGWOO JUNG ,  SUNGWON CHO ,  JUNHO JO

IPC: G03F1/80 ,  G03F7/40

Abstract: A mask includes a frame including an opening and a mask sheet disposed on the frame, including a first surface and a second surface opposite to the first surface, and including a plurality of holes that penetrate the first surface and the second surface. A width of each of the plurality of holes increases as being closer to the second surface from the first surface.

公开(公告)号：US20250089545A1

公开(公告)日：2025-03-13

申请号：US18639800

申请日：2024-04-18

Applicant: Samsung Display Co., Ltd.

Inventor： WONKYU CHOE ,  DUCKJUNG LEE

IPC: H10K71/20 ,  H10K59/12 ,  H10K59/122 ,  H10K71/15 ,  H10K71/60

Abstract: The method for manufacturing a display device according to one or more embodiments of the present disclosure may include preparing a substrate including a display area, a pad area, a peripheral area, a first electrode, and an intermediate layer, the first electrode and the intermediate layer being in the display area, forming a preliminary first lift-off layer on the substrate, forming a first photoresist pattern on the preliminary first lift-off layer, having a photo-opening part overlapping with the display area, etching the preliminary first lift-off layer to form a first lift-off layer exposing the display area, forming a second electrode on the intermediate layer through the photo opening part, and removing the first lift-off layer and the first photoresist pattern.

公开(公告)号：US20230118046A1

公开(公告)日：2023-04-20

申请号：US17889885

申请日：2022-08-17

Applicant: Samsung Display Co., Ltd.

Inventor： DUCKJUNG LEE ,  SUNGSOON IM ,  JUNHO JO

IPC: C23C14/04 ,  C23C16/04

Abstract: A mask includes a first sub-mask, a second sub-mask facing the first sub-mask in a first direction and including a boundary surface contacting a boundary surface of the first sub-mask at a boundary portion, and a coupling bar disposed on a lower surface of the first sub-mask and a lower surface of the second sub-mask to connect the first sub-mask to the second sub-mask. Each of the first sub-mask, the second sub-mask, and the coupling bar includes openings. The openings of the coupling bar are aligned with part of the openings of the first and second sub-masks in a thickness direction of the coupling bar.

公开(公告)号：US20240196651A1

公开(公告)日：2024-06-13

申请号：US18465618

申请日：2023-09-12

Applicant: Samsung Display Co., Ltd.

Inventor： DUCKJUNG LEE ,  HYE JIN GWARK ,  JAEIK KIM ,  HWI KIM ,  JUNGSUN PARK ,  YEONHWA LEE ,  JOONGU LEE

IPC: H10K59/121 ,  H10K59/12 ,  H10K59/122 ,  H10K59/80 ,  H10K59/88

CPC classification number: H10K59/1213 ,  H10K59/1201 ,  H10K59/122 ,  H10K59/8051 ,  H10K59/8052 ,  H10K59/88

Abstract: A display device includes: a base substrate having a plurality of first areas and a second area adjacent to the plurality of first areas; an organic layer on the base substrate and having a groove therein corresponding to the second area; a first electrode on the organic layer and overlapping one first area from among the plurality of first areas; a first charge transport layer on the first electrode and having an edge part facing a partial region of an inner lateral surface of the organic layer that defines the groove; an emission layer covering the first charge transport layer; a second charge transport layer covering the emission layer and including an inorganic material;
and a second electrode covering the second charge transport layer and overlapping a bottom surface of the organic layer defining the groove.