公开(公告)号：US12113077B2

公开(公告)日：2024-10-08

申请号：US16927327

申请日：2020-07-13

Applicant: Samsung Display Co., LTD. ,  UBmaterials Inc.

Inventor： Joon-Hwa Bae ,  Jin Hyung Park ,  Bonggu Kang ,  Seungbae Kang ,  Heesung Yang ,  Woojin Cho ,  Byoung Kwon Choo

IPC: H01L27/12 ,  C09G1/02 ,  C09K3/14 ,  H01L21/3105

CPC classification number: H01L27/1251 ,  C09G1/02 ,  C09K3/1409 ,  H01L21/31053 ,  H01L27/1229 ,  H01L27/1248 ,  H01L27/1259

Abstract: A polishing slurry is disclosed which includes about 0.01 wt % to about 10 wt % of polishing particles, about 0.005 wt % to about 0.1 wt % of a dispersing agent, about 0.001 wt % to about 1 wt % of an oxide-polishing promoter including a pyridine compound, about 0.05 wt % to about 0.1 wt % of a nitride-polishing inhibitor including an amino acid or an anionic organic acid, and water. A method for manufacturing a display device including an active pattern disposed on a base substrate, a gate metal pattern including a gate electrode overlapping the active pattern, a planarized insulation layer disposed on the gate metal pattern, and a source metal pattern disposed on the planarized insulation layer is also disclosed.

公开(公告)号：US11203703B2

公开(公告)日：2021-12-21

申请号：US16247730

申请日：2019-01-15

Applicant: SAMSUNG DISPLAY CO., LTD. ,  UBmaterials Inc.

Inventor： Hyunjin Cho ,  Joonhwa Bae ,  Byoungkwon Choo ,  Woojin Cho ,  Jinhyung Park

IPC: H01L21/321 ,  H01L21/3105 ,  H01L21/306 ,  H01L21/302 ,  C09K3/14 ,  C09G1/04 ,  C09G1/02 ,  C09G1/00 ,  B24B37/04

Abstract: A polishing slurry includes an abrasive material, a first oxide polishing promoter, a first nitride polishing inhibitor, and a second nitride polishing inhibitor. The first oxide polishing promoter includes a polymer-based oxide polishing promoter. The first nitride polishing inhibitor includes an anionic nitride polishing inhibitor. The second nitride polishing inhibitor includes at least one selected from a cationic nitride polishing inhibitor and a non-ionic nitride polishing inhibitor.

公开(公告)号：US12014565B2

公开(公告)日：2024-06-18

申请号：US17538901

申请日：2021-11-30

Applicant: Samsung Display Co., Ltd.

Inventor： Joon-Hwa Bae ,  Bonggu Kang ,  Seungbae Kang ,  Heesung Yang ,  Woojin Cho ,  Byoung Kwon Choo

IPC: G06V40/13 ,  G06F1/16 ,  G06F3/041 ,  G06F21/32 ,  H01L27/146

CPC classification number: G06V40/13 ,  G06F1/1626 ,  G06F3/0412 ,  G06F21/32 ,  G06V40/1318 ,  H01L27/14683 ,  H01L27/14685

Abstract: A method of manufacturing a detection sensor is disclosed. The method includes forming a biometric information sensing layer including a transistor on a base layer, forming an initial optical pattern layer on the biometric information sensing layer, patterning the initial optical pattern layer to form a plurality of transmissive portions spaced apart from each other and having a first zeta potential, coating a light blocking material to form an initial light blocking portion that covers a side surface and an upper surface of the transmissive portions and has a second zeta potential different from the first zeta potential, and polishing the initial light blocking portion such that the upper surface of the transmissive portions is exposed to form a light blocking portion. The initial light blocking portion is polished by the abrasive, which has the first zeta potential, using a pad.

公开(公告)号：US20230131912A1

公开(公告)日：2023-04-27

申请号：US17865501

申请日：2022-07-15

Applicant: Samsung Display Co., Ltd.

Inventor： HEESUNG YANG ,  Joon-Hwa Bae ,  Sukyeong Shin ,  Woojin Cho

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

Abstract: A display panel includes an emission area and a non-emission area. A light emitting element includes a first electrode, an emission layer on the first electrode, and a second electrode on the emission layer. A pixel defining layer includes a first opening defined therein and exposing the first electrode. A first encapsulation layer is on the second electrode to overlap the light emitting element. The first encapsulation layer includes a first inorganic layer on the second electrode and a second inorganic layer on the first inorganic layer. A top surface of the second electrode overlaps the first opening and includes at least one first stepped portion. A bottom surface of the second inorganic layer directly contacts a top surface of the first inorganic layer. At least one of the top surface of the first inorganic layer or a top surface of the second inorganic layer is a flat surface.

公开(公告)号：US20220209208A1

公开(公告)日：2022-06-30

申请号：US17506163

申请日：2021-10-20

Applicant: Samsung Display Co., Ltd.

Inventor： Seungbae Kang ,  Heesung Yang ,  Byoungkwon Choo ,  Woojin Cho

IPC: H01L51/56 ,  H01L27/32

Abstract: The method of manufacturing a display device includes preparing a substrate having a first and second area surrounding a portion of the first area, forming a semiconductor layer in the first area, forming a first insulating layer covering the semiconductor layer, forming a gate electrode layer that at least partially overlaps the semiconductor layer, forming a pad electrode layer in the second area, forming a second insulating layer covering the gate electrode layer, forming contact holes that at least partially expose the semiconductor layer and the gate electrode layer, and forming a conductive layer positioned in the contact holes and including a first and second layer. The forming of the conductive layer includes forming a first layer material and a second layer material, and removing a portion of the first layer material and a portion of the second layer material to expose the second insulating layer.

公开(公告)号：US11311979B2

公开(公告)日：2022-04-26

申请号：US17158657

申请日：2021-01-26

Applicant: Samsung Display Co., Ltd. ,  KCTECH CO.,LTD.

Inventor： Junggun Nam ,  Seungik Kang ,  Seungbae Kang ,  Pungseok Kim ,  Heesung Yang ,  Keunwoo Lee ,  Woojin Cho ,  Byoungkwon Choo

IPC: B24B37/07 ,  B32B38/00 ,  B24B37/20

Abstract: An apparatus for manufacturing a display device includes a moving part including a belt that circulates, a roller that circulates the belt, and at least one meandering prevention portion that moves in a first direction parallel to a direction of a rotation shaft of the roller and prevents meandering of the belt, and a polishing head disposed corresponding to the moving part, the polishing head polishing a surface of a base material disposed on a first surface of the belt. A part of the at least one meandering prevention portion faces a second surface of the belt, the second surface being a side surface of the belt.

公开(公告)号：US11050045B2

公开(公告)日：2021-06-29

申请号：US16581993

申请日：2019-09-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Heesung Yang ,  Seung Bae Kang ,  Bonggu Kang ,  Tae Wook Kang ,  Joon-Hwa Bae ,  Woojin Cho ,  Byoung Kwon Choo

IPC: H01L51/56 ,  H01L21/311 ,  H01L21/3105

Abstract: A display device includes a planarization layer covering transistors in a display area on a substrate, an organic light emitting diode on the planarization layer, a pad electrode in a non-display area on the substrate surrounding the display area, and a sacrificial layer remnant capping a side surface of the pad electrode.

公开(公告)号：US10903241B2

公开(公告)日：2021-01-26

申请号：US16031543

申请日：2018-07-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Minwoo Lee ,  Byunghoon Kang ,  Heekyun Shin ,  Seungjun Moon ,  Woojin Cho

IPC: H01L27/12 ,  H01L27/32 ,  H01L51/52 ,  H01L51/00

Abstract: A system of forming a debonding layer includes a debonding layer forming device configured to form a coating layer by coating a graphene oxide layer on a support substrate. The debonding layer forming device is configured to form a debonding layer by heat-treating the coating layer. An optical measuring device is configured to classify the support substrate into a plurality of cell areas. The optical measuring device is configured to measure a thickness of at least one of the coating layer in at least one cell area of the plurality of cell areas.

公开(公告)号：US20200047369A1

公开(公告)日：2020-02-13

申请号：US16427498

申请日：2019-05-31

Applicant: Samsung Display Co., Ltd.

Inventor： Junho Sim ,  Byunghoon Kang ,  Seungjun Moon ,  Dongkyun Seo ,  Heekyun Shin ,  Woojin Cho

IPC: B26F3/00 ,  B26D7/18

Abstract: A cutting apparatus includes: a stage on which is disposed a preliminary stacked body from which a cut stacked body having an edge is formed; a cutting unit movable along a first direction corresponding to an extension direction of the edge of the cut stacked body and with which the preliminary stacked body is cut to form the cut stacked body; a first detaching unit movable in a direction forming an acute angle with the first direction and including a first detaching tool which contacts the cut stacked body in detaching of the cut stacked body from the carrier substrate; and a second detaching unit movable in a direction parallel to the first direction and including a second detaching tool which is inserted between the cut stacked body and the carrier substrate in the detaching of the cut stacked body from the carrier substrate.

公开(公告)号：US20190011605A1

公开(公告)日：2019-01-10

申请号：US15952119

申请日：2018-04-12

Applicant: Samsung Display Co., Ltd.

Inventor： Jeongwoo Park ,  Seungho Kim ,  Jong-hoon Yeum ,  Seung Kim ,  Junehyoung Park ,  Hoikwan Lee ,  Woojin Cho

IPC: G02B1/14 ,  C03C17/00 ,  C03C15/00 ,  C03C23/00 ,  H05K5/00

Abstract: A glass member for a display device, a method of fabricating a glass member, and a display device including a glass member are provided. A method of fabricating a glass member for a display device includes: preparing a glass substrate including a first surface, a second surface facing the first surface, and a side surface connecting the first surface to the second surface; forming a protection layer on the side surface to cover a portion of the side surface; and etching a portion of the glass substrate exposed by the protection layer.