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：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：US20250008778A1

公开(公告)日：2025-01-02

申请号：US18669031

申请日：2024-05-20

Applicant: Samsung Display Co., Ltd.

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

IPC: H10K59/122 ,  H10K59/80

Abstract: A display device includes a circuit layer disposed on a base substrate, and a display element layer disposed on the circuit layer. The display element layer includes a light emitting element, a pixel defining layer defining a light emitting area of the light emitting element, a separator disposed on the pixel defining layer, and an auxiliary electrode disposed on the separator and including a reflective material. The auxiliary electrode is electrically connected to an electrode of the light emitting element, a side surface of the separator is inclined toward the light emitting element, and the auxiliary electrode covers the side surface of the separator.

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.

公开(公告)号：US20230329043A1

公开(公告)日：2023-10-12

申请号：US18203949

申请日：2023-05-31

Applicant: Samsung Display Co., Ltd.

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

IPC: H10K59/122 ,  H10K71/00

CPC classification number: H10K59/122 ,  H10K71/00

Abstract: A display panel includes an emitting part including a light emitting element and a transmitting part adjacent to the emitting part and including a low adhesion part including a carbon compound. The low adhesion pattern includes fluorine (F).

公开(公告)号：US20230126073A1

公开(公告)日：2023-04-27

申请号：US17930967

申请日：2022-09-09

Applicant: Samsung Display Co., LTD.

Inventor： Joon Gu LEE ,  HYE JIN GWARK ,  ARONG KIM ,  Jae Ik KIM ,  JUNGSUN PARK ,  HEEMIN PARK ,  Yeon Hwa LEE ,  KYU H. HWANG

IPC: H01L33/38 ,  H01L33/62 ,  H01L33/20 ,  H01L33/00

Abstract: A display device and a manufacturing method of a display device are provided. A display device includes: a substrate; a semiconductor layer on the substrate; a source electrode and a drain electrode on the semiconductor layer; an auxiliary electrode on a same layer as the source electrode and the drain electrode; a first electrode electrically connected with the source electrode or the drain electrode; a light emitting element layer on the first electrode; and a second electrode on the light emitting element layer, and the auxiliary electrode includes at least one groove located inside the auxiliary electrode.

公开(公告)号：US20230039703A1

公开(公告)日：2023-02-09

申请号：US17734380

申请日：2022-05-02

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L27/32 ,  H01L51/52

Abstract: Disclosed is a display device including a base layer, a circuit layer including a plurality of transistors spaced apart from each other and disposed on a top of the base layer, a plurality of insulating layers disposed on a top of the base layer, and a plurality of contact electrodes electrically connected to the transistors, respectively, a first light emitting unit disposed on a top of the circuit layer, a second light emitting unit, and a lower protrusion disposed between at least one of the transistors and the second lower electrode, wherein at least one of the contact electrodes is disposed to extend to a top surface of the lower protrusion in the circuit layer while following a shape of the lower protrusion to simplify an etching process of an encapsulation layer.

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：US20220123081A1

公开(公告)日：2022-04-21

申请号：US17502044

申请日：2021-10-15

Applicant: Samsung Display Co., LTD.

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

IPC: H01L27/32 ,  H01L51/52

Abstract: A display device includes: a substrate on which a pixel area for displaying an image and a transmission area for transmitting an external light are defined; a transistor disposed on the substrate in the pixel area; a first electrode disposed on the transistor in the pixel area and electrically connected to the transistor; a pixel defining layer exposing at least a portion of the first electrode; an emission layer disposed on the first electrode in the pixel area; a surface control layer disposed on the substrate in the transmission area; at least one dam disposed between the pixel area and the transmission area and surrounding the surface control layer; and a second electrode disposed on the emission layer.

公开(公告)号：US20210408167A1

公开(公告)日：2021-12-30

申请号：US17161734

申请日：2021-01-29

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L27/32 ,  H01L51/52

Abstract: A display apparatus of an embodiment includes a first area and a second area disposed adjacent to the first area in a plan view, and includes a first electrode disposed in the first area and a second electrode disposed in the second area, a hole transport region disposed on the first electrode and the second electrode, an emission layer disposed on the hole transport region to overlap the first electrode and not to overlap the second electrode, a buffer layer disposed on the emission layer in the first area and the second area, a surface energy controlling layer disposed on the buffer layer to overlap the second electrode and not to overlap the first electrode, and a third electrode disposed on the buffer layer to overlap the first electrode and not to overlap the surface energy controlling layer. Such a display apparatus may have improved transmittance.