公开(公告)号：US20230115645A1

公开(公告)日：2023-04-13

申请号：US17740764

申请日：2022-05-10

Applicant: Samsung Display Co., Ltd.

Inventor： JUNGI KIM ,  JEONG WON KIM

IPC: H01L27/32 ,  H01L51/52

Abstract: A display device includes a light emitting part disposed on a substrate, where the light emitting part includes a common layer, and a separator disposed on the substrate to surround the light emitting part on a plane, where a length of an upper portion of the separator is greater than a length of a lower portion of the separator in a cross-section, and an open portion is defined in the separator.

公开(公告)号：US20240306429A1

公开(公告)日：2024-09-12

申请号：US18403505

申请日：2024-01-03

Applicant: Samsung Display Co., LTD.

Inventor： JUNGI KIM ,  HYE SUN KIM ,  SANGHYUN YUN ,  GWANGMIN CHA

IPC: H10K59/122 ,  H10K59/12

CPC classification number: H10K59/122 ,  H10K59/1201

Abstract: A display device includes a substrate having light-emitting areas, a pixel electrode above the substrate, a pixel-defining layer exposing a portion of the pixel electrode, and including a first portion having a first thickness and having an upper surface having liquid repellency, and a second portion having a second thickness that is less than the first thickness and having an upper surface that is lyophilic, and a light-emitting layer above the pixel electrode.

公开(公告)号：US20240206236A1

公开(公告)日：2024-06-20

申请号：US18388832

申请日：2023-11-11

Applicant: Samsung Display Co., LTD.

Inventor： HYE SUN KIM ,  JUNGI KIM ,  SANGHYUN YUN ,  GWANGMIN CHA

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

CPC classification number: H10K59/122 ,  H10K59/1201 ,  H10K59/8792

Abstract: A display device includes a substrate, a via insulating layer disposed on the substrate and defining a groove, a lower electrode disposed on the via insulating layer and spaced apart from the groove in a plan view, a pixel defining layer disposed on the via insulating layer, defining an opening exposing at least a part of an upper surface of the lower electrode, and filling the groove, and a light-emitting layer disposed in the opening of the pixel defining layer.

公开(公告)号：US20240107816A1

公开(公告)日：2024-03-28

申请号：US18470506

申请日：2023-09-20

Applicant: Samsung Display Co., LTD.

Inventor： GWANGMIN CHA ,  JUNGI KIM ,  HYE SUN KIM ,  SANGHYUN YUN

IPC: H10K59/122 ,  H10K59/12 ,  H10K59/131 ,  H10K71/13 ,  H10K71/20

CPC classification number: H10K59/122 ,  H10K59/1201 ,  H10K59/131 ,  H10K71/135 ,  H10K71/233

Abstract: A display device includes a pixel electrode of a light emitting element, a pixel defining layer on the pixel electrode and in which an opening is defined, the opening exposing the pixel electrode to outside the pixel defining layer, a light emitting layer of the light emitting element which is in the opening and on the pixel electrode, a metal pattern which is on the pixel defining layer and spaced apart from the pixel electrode in a direction along the pixel defining layer, and a spacer which is on the metal pattern, the spacer being spaced apart from the pixel defining layer along a thickness direction of the display device, by the metal pattern.

公开(公告)号：US20220059802A1

公开(公告)日：2022-02-24

申请号：US17246457

申请日：2021-04-30

Applicant: Samsung Display Co., Ltd.

Inventor： YANG-HO JUNG ,  JUNGI KIM ,  JUNHO SIM ,  JAEHUN LEE

IPC: H01L51/52 ,  H01L27/32

Abstract: A display device includes: a display element layer including an emission area and a non-emission area around the emission area; a first conductive layer on the non-emission area; a first insulating layer on the non-emission area to cover the first conductive layer, the first insulating layer having an opening part overlapping the emission area in a plan view; a second conductive layer on the first insulating layer; and a reflection pattern spaced apart from the second conductive layer and on the first insulating layer.

公开(公告)号：US20240126169A1

公开(公告)日：2024-04-18

申请号：US18373936

申请日：2023-09-27

Applicant: Samsung Display Co., Ltd. ,  DUK SAN NEOLUX CO., LTD.

Inventor： YANG-HO JUNG ,  BUM SUNG LEE ,  CHANG MIN LEE ,  JUN BAE ,  NAKCHO CHOI ,  HOON KANG ,  DAE-GI KWEON ,  JUNGI KIM ,  JIHEE KIM ,  JUNHO SIM ,  JAEHUN LEE

IPC: G03F7/031 ,  C07C57/02 ,  G03F7/038 ,  H10K59/122

CPC classification number: G03F7/031 ,  C07C57/02 ,  G03F7/038 ,  H10K59/122

Abstract: Provided is a photosensitive resin composition including a reactive unsaturated compound, an alkali soluble resin, an initiator, and a pigment. The reactive unsaturated compound is selected to cause the composition to exhibit high-resolution pattern properties that facilitate forming a pixel defining film in a display device. The reactive unsaturated compound may be an acryl-based compound having at least three ethylenically unsaturated double bond groups in molecules and having a viscosity of about 200 mPa s to about 280 mPa s at 40° C. A display device including such pixel defining film is also presented.

公开(公告)号：US20240023377A1

公开(公告)日：2024-01-18

申请号：US18218074

申请日：2023-07-04

Applicant: Samsung Display Co., Ltd.

Inventor： PIL SOON HONG ,  JUNGI KIM ,  HYE SUN KIM ,  SANGHYUN YUN ,  GWANGMIN CHA

IPC: H10K59/122 ,  H10K71/13 ,  H10K59/12 ,  H10K71/20

CPC classification number: H10K59/122 ,  H10K71/135 ,  H10K59/1201 ,  H10K71/233

Abstract: A display device is disclosed that includes a substrate, a pixel electrode, a sacrificial layer, a pixel defining layer, a conductive layer, a light emitting material, and a common electrode. The pixel electrode is arranged on the substrate. The sacrificial layer is arranged on the pixel electrode so as to be adjacent to an outer boundary of the pixel electrode when viewed in a plan view. The pixel defining layer is arranged on the substrate, coming into direct contact with an entire top surface of the sacrificial layer, and defining a pixel opening exposing a part of the pixel electrode. The conductive layer covers a side surface of the pixel defining layer defining the pixel opening. The light emitting material is arranged on the pixel electrode within the pixel opening. The common electrode includes a first common electrode covering a top surface of the light emitting material in the pixel opening, and a second common electrode covering a top surface of the pixel defining layer.

公开(公告)号：US20230144766A1

公开(公告)日：2023-05-11

申请号：US17887007

申请日：2022-08-12

Applicant: Samsung Display Co., Ltd.

Inventor： WOONGSIK KIM ,  DONGWAN BAE ,  JEONGWON KIM ,  JUNGI KIM ,  JIN-SU BYUN

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

CPC classification number: H01L27/3246 ,  H01L51/5284 ,  H01L51/5275 ,  H01L51/5237 ,  H01L51/56 ,  H01L2227/323

Abstract: A display device includes: a display panel including a pixel defining film and a light-emitting element, wherein the pixel defining film includes a pixel opening, wherein the light-emitting element includes a first electrode, a light-emitting layer, and a second electrode, and wherein the first electrode is at least partially exposed through the pixel opening; and a light control layer including a pattern layer and a cover layer, wherein the pattern layer overlaps the pixel opening, and wherein the cover layer covers the pattern layer and has a refractive index lower than that of the pattern layer, wherein: the pattern layer includes an upper surface, a lower surface opposite to the upper surface, and a side surface connecting the upper surface and the lower surface to each other, and an angle between the side surface and the lower surface is an acute angle.

公开(公告)号：US20230042183A1

公开(公告)日：2023-02-09

申请号：US17578879

申请日：2022-01-19

Applicant: Samsung Display Co., Ltd.

Inventor： JUNGI KIM ,  WOONGSIK KIM ,  JEONG WON KIM ,  DONGHWAN BAE ,  JIN-SU BYUN

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

Abstract: A display device includes a substrate, an emission structure disposed on the substrate, a first refraction pattern disposed on the emission structure, a second refraction pattern disposed on the first refraction pattern and covering the first refraction pattern, where the second refraction pattern includes an inorganic material, and a third refraction pattern disposed on the second refraction pattern and having a refractive index less than a refractive index of the first refraction pattern.

公开(公告)号：US20240237423A1

公开(公告)日：2024-07-11

申请号：US18504201

申请日：2023-11-08

Applicant: Samsung Display Co., LTD.

Inventor： JUNGI KIM ,  HYE SUN KIM ,  SANGHYUN YUN ,  GWANGMIN CHA

IPC: H10K59/122

CPC classification number: H10K59/122

Abstract: A display device includes a pixel defining layer defining a first pixel opening exposing a first pixel electrode and a second pixel opening exposing a second pixel electrode and spaced apart from the first pixel opening, a pattern part disposed on the pixel defining layer between the first pixel opening and the second pixel opening and including a first pattern and a second pattern spaced apart from each other, and a separator including a contact part directly contacting the pixel defining layer between the first pattern and the second pattern, a first inclined part disposed on the contact part, spaced apart from the pattern part to define an undercut space, and having a first average taper angle, and a second inclined part disposed on the first inclined part and having a second average taper angle smaller than the first average taper angle of the first inclined part.