公开(公告)号：US20240260360A1

公开(公告)日：2024-08-01

申请号：US18520673

申请日：2023-11-28

Applicant: Samsung Display Co., LTD.

Inventor： Duck Jung LEE ,  Hye Jin GWARK ,  Jae Ik KIM ,  Hwi KIM ,  Jung Sun PARK ,  Seung Yong SONG ,  Yeon Hwa LEE ,  Joon Gu LEE

IPC: H10K59/131 ,  H10K59/12 ,  H10K59/122

CPC classification number: H10K59/131 ,  H10K59/1201 ,  H10K59/122

Abstract: A display device includes: a pixel circuit layer including a base layer, a pixel circuit, and a passivation layer including a well area and a protrusion area; and a light-emitting-element layer disposed on the pixel circuit layer, and including a light emitting element, and a connecting electrode, the light emitting element including a first electrode, a second electrode, and an emission part. The connecting electrode is disposed in the protrusion area, and at least a portion of the connecting electrode overlaps the well area and does not contact the passivation layer. The emission part includes a hole layer, an electron layer, and an emission layer. The hole layer connects the first electrode and the emission layer. The electron layer connects the second electrode and the emission layer. Each of the hole layer and the second electrode has an end portion on the connecting electrode.

公开(公告)号：US20220149126A1

公开(公告)日：2022-05-12

申请号：US17470346

申请日：2021-09-09

Applicant: Samsung Display Co., LTD.

Inventor： Woo Yong SUNG ,  Chan Ho MOON ,  Jung Han SEO ,  Seung Yong SONG

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: A display device includes a first electrode disposed on a substrate, a pixel defining layer exposing at least a part of the first electrode and disposed on the substrate, a light emitting layer disposed on the first electrode, a second electrode disposed on the light emitting layer, and an encapsulation layer disposed on the second electrode, wherein the pixel defining layer includes an overlapping area overlapping the first electrode and a non-overlapping area not overlapping the first electrode, the overlapping area includes a first overlapping area spaced apart from the first electrode and facing the first electrode, and the encapsulation layer is at least partially disposed in a space between the first electrode and the pixel defining layer in the first overlapping area.

公开(公告)号：US20220139962A1

公开(公告)日：2022-05-05

申请号：US17370477

申请日：2021-07-08

Applicant: Samsung Display Co., LTD.

Inventor： Se Hoon JEONG ,  Seung Yong SONG ,  Seung Wook KWON ,  Woo Yong SUNG ,  Jeong Seok LEE

IPC: H01L27/12 ,  H01L51/52 ,  H01L23/00 ,  H01L51/56 ,  H01L25/16 ,  H01L27/32

Abstract: A display device includes a substrate including a first surface and a second surface, pixels and first lines disposed on the first surface of the substrate, a first protective layer disposed on the second surface of the substrate and overlapping the pixels and the first lines, via holes penetrating the substrate and the first protective layer and exposing an area of each of the first lines, second lines disposed on a surface of the first protective layer and electrically connected to the first lines through the via holes, respectively, and pads disposed on the surface of the first protective layer and electrically connected to the second lines, respectively. The first protective layer includes openings corresponding to the via holes and also includes a photoresist material.

公开(公告)号：US20210325787A1

公开(公告)日：2021-10-21

申请号：US16952953

申请日：2020-11-19

Applicant: Samsung Display Co., Ltd. ,  POSTECH Research and Business Development Foundation

Inventor： Sung Soon IM ,  Jong Kyu KIM ,  Jeong Hyeon PARK ,  Seung Yong SONG ,  Duck Jung LEE ,  Jong Won LEE

IPC: G03F7/20 ,  H01L27/15 ,  H01L27/12 ,  H01L51/56 ,  H01L51/00

Abstract: Provided are an exposure apparatus including a light source unit which provides light for exposure and comprises micro light emitting diodes arranged in a matrix form; a substrate transfer unit which transfers a target substrate; and a control unit which controls at least one of the light source unit and the substrate transfer unit. The control unit allocates coordinates or an address to each micro light emitting diode and individually controls an amount of light of each micro light emitting diode according to a preset pattern based on the coordinates or the address.

公开(公告)号：US20250107338A1

公开(公告)日：2025-03-27

申请号：US18666466

申请日：2024-05-16

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Eok SHIN ,  Keun Woo KIM ,  Byung Soo SO ,  Seung Yong SONG ,  Ju Hyun LEE ,  Sung Soon IM ,  Keun Ho JANG ,  In Young JUNG

IPC: H10K59/122 ,  H10K50/17 ,  H10K59/12 ,  H10K59/131 ,  H10K71/20

Abstract: A display device includes a substrate having a light emitting area and a non-light emitting area; a first anode electrode on the light emitting area of the substrate; a pixel defining layer on the non-light emitting area of the substrate and defining a first opening; an organic separator layer on the pixel defining layer and defining a second opening; a first light emitting layer on the first anode electrode; a common electron layer on the first light emitting layer and the organic separator layer; and a common electrode on the common electron layer, wherein the organic separator layer does not overlap the light emitting area, and overlaps the non-light emitting area to be in contact with the pixel defining layer, the first light emitting layer, and the common electron layer.

公开(公告)号：US20250058560A1

公开(公告)日：2025-02-20

申请号：US18666247

申请日：2024-05-16

Applicant: Samsung Display Co., LTD. ,  Soonchunhyang University Industry Academy Cooperation Foundation

Inventor： Junghan SEO ,  Kye Si KWON ,  Woo Yong SUNG ,  Seung Yong SONG ,  Jeongyeop JO ,  Jinsol LEE

IPC: B41J2/045

Abstract: An inkjet printing system includes: an inkjet head unit including a nozzle for discharging ink, a driving unit for generating and outputting a driving voltage for discharging the ink from the nozzle, a first impedance adjusting unit disposed between an input terminal of the inkjet head unit and an output terminal of the driving unit and including a diode, and a self-sensing circuit unit that is connected to the input terminal of the inkjet head unit and receives a self-sensing voltage from the nozzle to determine whether the nozzle is operating normally.

公开(公告)号：US20250040374A1

公开(公告)日：2025-01-30

申请号：US18778547

申请日：2024-07-19

Applicant: Samsung Display Co., Ltd.

Inventor： Hwi KIM ,  Hye Jin GWARK ,  Jae Ik KIM ,  Jung Sun PARK ,  Seung Yong SONG ,  Duck Jung LEE ,  Yeon Hwa LEE ,  Joon Gu LEE

IPC: H10K59/131 ,  H10K59/12 ,  H10K59/88

Abstract: The display device includes a connection pattern and a dummy pattern spaced apart from each other on a substrate; a via layer on the substrate; a pixel electrode on the via layer and electrically connected to the connection pattern; a light emitting layer on the pixel electrode; a control layer on the light emitting layer; and a common electrode on the control layer. The dummy pattern may include a first dummy pattern and a second dummy pattern disposed on the first dummy pattern. The first dummy pattern may include a first layer, a second layer, and a third layer each of which is made of a conductive material and is sequentially stacked. The second dummy pattern may include an organic pattern including a first portion and a second portion having different areas in a plan view.

公开(公告)号：US20240138234A1

公开(公告)日：2024-04-25

申请号：US18224734

申请日：2023-07-20

Applicant: Samsung Display Co., LTD.

Inventor： Woo Yong SUNG ,  Seung Yong SONG ,  Jeong Seok LEE

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/121 ,  H10K59/122 ,  H10K59/131 ,  H10K71/20

CPC classification number: H10K59/873 ,  H10K59/1201 ,  H10K59/1213 ,  H10K59/122 ,  H10K59/131 ,  H10K71/231

Abstract: A display device includes a substrate including a display area and a non-display area; a light-emitting array layer; an encapsulation structure; pads disposed in a pad area which is a part of the non-display area on the substrate; a dam structure disposed in the non-display area on the substrate and surrounding an edge of the display area; an encapsulation auxiliary structure corresponding to another part of the non-display area except the pad area, surrounding a part of an edge of the display area, and disposed between the dam structure and an edge of the substrate; and a first multilayer disposed between the substrate and each of the dam structure and the encapsulation auxiliary structure, and including an undercut structure by two or more different metal materials which are stacked.

公开(公告)号：US20230008283A1

公开(公告)日：2023-01-12

申请号：US17784099

申请日：2020-06-26

Applicant: Samsung Display Co., LTD.

Inventor： Oh June KWON ,  Seung Yong SONG ,  Won Woo CHOI

IPC: H01L51/00 ,  H01L51/52 ,  H01L51/56

Abstract: A display device includes: a flexible substrate having a first surface and a second surface opposite to the first surface, where the flexible substrate includes an upper surface portion extending along a first direction, a first bent portion connected to the upper surface portion, a first side portion connected to the first bent portion, a second bent portion connected to the first side portion, a second side portion connected to the second bent portion, a third bent portion connected to the second side portion, and a lower surface portion connected to the third bent portion; and a support member disposed on the second surface of the flexible substrate, where a portion of the support member disposed to overlap the second bent portion has a thickness less than a thickness of a portion disposed on the first side portion and a thickness of a portion disposed on the second side portion.

公开(公告)号：US20170331060A1

公开(公告)日：2017-11-16

申请号：US15591257

申请日：2017-05-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seung Hun KIM ,  Hyo Jeong KWON ,  Il Hwa HONG ,  Seung Yong SONG ,  Sang Hwan CHO

IPC: H01L51/05 ,  H01L51/00

CPC classification number: H01L51/0545 ,  H01L51/0002 ,  H01L51/0034 ,  H01L51/0036 ,  H01L51/004 ,  H01L51/0041

Abstract: An organic thin film transistor and a method of manufacturing the same, the transistor including a gate electrode; an organic semiconductor layer overlapping the gate electrode; and an insulating layer between the gate electrode and the organic semiconductor layer, the insulating layer having an organic/inorganic hybrid region, wherein the organic/inorganic hybrid region includes a polymer and an inorganic material that is chemically bonded to the polymer through a reactive group on the polymer, and the insulating layer includes a space adjacent to the polymer, the inorganic material being positioned in the space.