公开(公告)号：US20200052051A1

公开(公告)日：2020-02-13

申请号：US16386695

申请日：2019-04-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYOUNGSUB LEE ,  WOOYONG SUNG ,  JUNGHAN SEO

IPC: H01L27/32 ,  H01L51/52 ,  H01L27/12 ,  G06F1/16

Abstract: A display apparatus includes a thin film transistor disposed in a display area of a substrate and a display device in the display area that is electrically connected to the thin film transistor, an encapsulation layer that protects the display device, at least one through portion formed in the display area that vertically penetrates the substrate and a plurality of layers stacked on the substrate, and a first groove and a second groove that are spaced apart from each other and that surround the at least one through portion. A flow-restriction portion is disposed in a region between the first groove and the second groove that protrudes upwards from the substrate and confines an organic encapsulation layer of the encapsulation layer.

公开(公告)号：US20190334120A1

公开(公告)日：2019-10-31

申请号：US16385659

申请日：2019-04-16

Applicant: Samsung Display Co., Ltd.

Inventor： JUNGHAN SEO ,  Hyoungsub LEE ,  Wooyong SUNG

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/56 ,  G06F3/041 ,  G06F3/044

Abstract: A display panel including: a base substrate including first and second surfaces, a display region and a peripheral region; a pixel layer provided on the display region, the pixel layer including a plurality of pixels; a module hole penetrating the display region; a blocking groove in the display region and adjacent to the module hole, the blocking groove being recessed in the base substrate; an encapsulation layer provided on the pixel layer, the encapsulation layer including a first inorganic layer, a second inorganic layer and an organic layer; and a filling member in the blocking groove, the filling member including a same material as the organic layer, wherein the second inorganic layer covers a top surface of the filling member and a top surface of the first inorganic layer adjacent to the top surface of the filling member.

公开(公告)号：US20250018718A1

公开(公告)日：2025-01-16

申请号：US18613128

申请日：2024-03-22

Applicant: Samsung Display Co., Ltd.

Inventor： HYEMIN LEE ,  JAESIK KIM ,  JUNGHAN SEO ,  KWANHYUCK YOON ,  SEUNGHO YOON ,  BYEONGJUN LEE ,  SEUNGGUN CHAE

IPC: B41J2/165

Abstract: A head cleaning method includes contacting a nozzle surface of a head in which nozzle holes are defined with an absorbent on a pressurizer, starting a wiping operation at a first edge portion of the head closest to the pressurizer at a first position, and ending the wiping operation at a second edge portion of the head furthest away from the pressurizer at the first position, positioning the pressurizer at a second position to define a first angle between a first imaginary line parallel to a longitudinal direction of the head and a second imaginary line parallel to a longitudinal direction of the pressurizer, and starting the wiping operation at a third edge portion of the head closest to the pressurizer at the second position, and ending the wiping operation at a fourth edge portion of the head furthest away from the pressurizer at the second position.

公开(公告)号：US20240260405A1

公开(公告)日：2024-08-01

申请号：US18497485

申请日：2023-10-30

Applicant: Samsung Display Co., LTD.

Inventor： SUNGMIN HUR ,  JUNGHAN SEO

IPC: H10K59/80 ,  H10K59/12

CPC classification number: H10K59/873 ,  H10K59/1201

Abstract: A display device includes a substrate, a light-emitting layer disposed on the substrate, a first inorganic layer disposed on the light-emitting layer, an organic layer disposed on the first inorganic layer, a second inorganic layer disposed on the organic layer, where the second inorganic layer has a film density of about 1.7 grams per cubic centimeter (g/cm3) or greater and about 1.9 grams per cubic centimeter (g/cm3) or less, and a refractive index of about 1.85 or greater and about 1.86 or less, and a third inorganic layer disposed on the second inorganic layer.

公开(公告)号：US20230014088A1

公开(公告)日：2023-01-19

申请号：US17935570

申请日：2022-09-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Wooyong Sung ,  WONWOO CHOI ,  SOOYOUN KIM ,  JUNGHAN SEO ,  SEOYEON LEE ,  HYOUNGSUB LEE ,  MOONWON CHANG ,  SEUNGGUN CHAE ,  SEUNGYONG SONG

IPC: H01L51/52 ,  G06F3/044 ,  G06F3/041 ,  H01L21/762 ,  H01L27/32 ,  H01L51/00

Abstract: A display device includes: a substrate that includes an opening and a display area that surrounds the opening; a plurality of grooves formed in the substrate between the opening and the display area; a display element layer on the substrate and that includes a plurality of display elements in the display area; a thin-film encapsulation layer disposed on the display element layer, the thin-film encapsulation layer including a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer which are sequentially stacked; a planarization layer disposed over the plurality of grooves and that includes an organic insulating material, wherein the planarization layer is disposed over the second inorganic encapsulation layer, and the organic encapsulation layer is disposed below the second inorganic encapsulation layer.

公开(公告)号：US20220209204A1

公开(公告)日：2022-06-30

申请号：US17470430

申请日：2021-09-09

Applicant: Samsung Display Co., Ltd.

Inventor： WOOYOUNG KIM ,  OHJEONG KWON ,  JUNGHAN SEO ,  HONGYEON LEE ,  SEUNGYEON JEONG

IPC: H01L51/52 ,  H01L51/56

Abstract: A display device includes an organic light emitting diode emitting light, an antireflection layer disposed on the organic light emitting diode and preventing reflection of external light incident from an outside, and a thin film encapsulation layer disposed on the antireflection layer.

公开(公告)号：US20210066418A1

公开(公告)日：2021-03-04

申请号：US16991492

申请日：2020-08-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JUNGHAN SEO ,  WOOYONG SUNG ,  WOOYOUNG KIM ,  SEUNGYONG SONG ,  SUNGHOON YANG ,  KWANHYUCK YOON ,  SEUNGGUN CHAE ,  WONWOO CHOI

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

Abstract: A display apparatus includes a substrate, a display area disposed on the substrate and including a plurality of pixels, a first planarization layer disposed on the substrate, a second planarization layer disposed on the first planarization layer, a pixel-defining layer disposed on the second planarization layer and covering at least one edge of a first electrode of each of the plurality of pixels, a plurality of first holes disposed between the plurality of pixels and spaced apart from the first electrode, and a first etching prevention layer disposed on a bottom surface of each of the first holes and on the first planarization layer. Each of the first holes includes an opening that passes through the second planarization layer and the pixel-defining layer.

公开(公告)号：US20200119304A1

公开(公告)日：2020-04-16

申请号：US16401536

申请日：2019-05-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： WONWOO CHOI ,  WOOYONG SUNG ,  SOOYOUN KIM ,  JUNGHAN SEO ,  SEOYEON LEE ,  HYOUNGSUB LEE ,  MOONWON CHANG ,  SEUNGGUN CHAE

IPC: H01L51/52 ,  H01L27/32

Abstract: A display panel includes a plurality of display elements arranged in a display area, an opening, a multi-layer including a first layer and a second layer disposed on the first layer, and a groove. Each display element includes a pixel electrode, an emission layer disposed on the pixel electrode, and an opposite electrode disposed on the emission layer. The display area surrounds the opening. The groove is located between the opening and the display area. The groove has an undercut cross-section that is concave in a thickness direction of the multi-layer, the second layer includes a pair of tips that protrude toward a center of the groove, and a length of each tip is less than about 2 μm.