公开(公告)号：US20240204153A1

公开(公告)日：2024-06-20

申请号：US18340532

申请日：2023-06-23

Applicant: Samsung Display Co., LTD.

Inventor： Myeong Su SO ,  Tae Jin KONG ,  Myeong Hee KIM ,  Seul Ki KIM ,  Ji Eun PARK

IPC: H01L33/62 ,  H01L25/075 ,  H01L25/16 ,  H01L33/38 ,  H01L33/40

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L25/167 ,  H01L33/382 ,  H01L33/40 ,  H01L2933/0016 ,  H01L2933/0066

Abstract: A display device includes a pixel circuit layer including a base layer and a pixel circuit, a first electrode disposed on the pixel circuit layer, light emitting elements disposed on the first electrode, a second electrode disposed on the light emitting elements, a first organic layer disposed between the light emitting elements, a second organic layer disposed between the light emitting elements and spaced apart from the light emitting elements, and a contact layer disposed between the first organic layer and the second organic layer and contacting a side surface of the light emitting elements.

公开(公告)号：US20240072218A1

公开(公告)日：2024-02-29

申请号：US18311038

申请日：2023-05-02

Applicant: Samsung Display Co., LTD.

Inventor： Tae Jin KONG ,  Myeong Hee KIM ,  Seul Ki KIM ,  Ji Eun PARK ,  Myeong Su SO

IPC: H01L33/50 ,  H01L25/075 ,  H01L33/10 ,  H01L33/38 ,  H01L33/44

CPC classification number: H01L33/505 ,  H01L25/0753 ,  H01L33/10 ,  H01L33/38 ,  H01L33/44 ,  H01L2933/0016 ,  H01L2933/0041

Abstract: The present disclosure provides a display device and a method for fabricating the same. According to one or more embodiments, a display device includes a substrate, pixel electrodes above the substrate, light-emitting elements above the pixel electrodes, extending in a thickness direction of the substrate, and having a polyhedral shape in the thickness direction, a width of a middle portion of the polyhedral shape being greater than a width of an upper portion of the polyhedral shape and greater than a width of a lower portion of the polyhedral shape, and a common electrode above the light-emitting elements.

公开(公告)号：US20240113268A1

公开(公告)日：2024-04-04

申请号：US18325216

申请日：2023-05-30

Applicant: Samsung Display Co., LTD.

Inventor： Seul Ki KIM ,  Tae Jin KONG ,  Myeong Hee KIM ,  Ji Eun PARK ,  Myeong Su SO

IPC: H01L33/62 ,  G09G3/3233 ,  H01L25/16

CPC classification number: H01L33/62 ,  G09G3/3233 ,  H01L25/167 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2354/00

Abstract: A display device includes a first electrode, an outer electrode surrounding the first electrode, a bank overlapping the outer electrode in a plan view, the bank including an opening that exposes the first electrode, a light emitting element disposed on the first electrode and in the opening of the bank, and a second electrode disposed on the light emitting element. The outer electrode may be electrically disconnected from the first electrode upon a bad contact between a light emitting member and the outer electrode. As a result, defective pixels can be repaired.

公开(公告)号：US20240113151A1

公开(公告)日：2024-04-04

申请号：US18328098

申请日：2023-06-02

Applicant: Samsung Display Co., LTD.

Inventor： Ji Eun PARK ,  Seul Ki KIM

IPC: H01L27/15

CPC classification number: H01L27/156

Abstract: A manufacturing method for a display device includes patterning a pixel defining pattern on a substrate; forming an emission stack structure; forming light emitting elements by etching the emission stack structure; and transferring the light emitting elements on a base layer and a pixel circuit layer including a pixel circuit on the base layer. The forming of the light emitting elements includes patterning the light emitting elements in an element forming area enclosed by the pixel defining pattern. The transferring of the light emitting elements includes disposing the light emitting elements in a sub-pixel area corresponding to the element forming area on the pixel circuit layer.

公开(公告)号：US20210018784A1

公开(公告)日：2021-01-21

申请号：US16778832

申请日：2020-01-31

Applicant: Samsung Display Co., Ltd.

Inventor： Je Hyeong PARK ,  Dong Lim KIM ,  Wan NAMGUNG ,  Ji Eun PARK ,  Dong Kyun SEO ,  Min Hee SON ,  Hyoung Wook SONG ,  Beom Hee HAN ,  Ki Pyo HONG

IPC: G02F1/1339 ,  G02F1/1368 ,  G02F1/1362

Abstract: A display device according to an exemplary embodiment includes: a plurality of transistors disposed on a substrate; a plurality of pixel electrodes electrically connected to the plurality of transistors; a plurality of first color filters, a plurality of second color filters, and a plurality of third color filters disposed between the plurality of transistors and the plurality of pixel electrodes; and a plurality of main spacers and a plurality of sub-spacers disposed on the pixel electrode, wherein the plurality of main spacers and the plurality of sub-spacers are disposed to overlap selected portions of the plurality of first color filters in a plan view, respectively, and not to overlap the plurality of second color filters and the plurality of third color filters in a plan view.

公开(公告)号：US20210018779A1

公开(公告)日：2021-01-21

申请号：US16786886

申请日：2020-02-10

Applicant: Samsung Display Co., Ltd.

Inventor： Beom Hee HAN ,  Je Hyeong PARK ,  Wan NAMGUNG ,  Ji Eun PARK ,  Dong Kyun SEO ,  Ki Pyo HONG

IPC: G02F1/1362 ,  G02F1/1339 ,  G02F1/1368 ,  G02F1/1343

Abstract: A display device may include the following elements: a transistor; a pixel electrode electrically connected to the transistor; a first color filter overlapping the pixel electrode; a first color filtering member including a same material as the first color filter; a second color filter partially overlapping the first color filter or immediately neighboring the first color filter; a third color filter overlapping the first color filtering member and partially overlapping the second color filter or immediately neighboring the second color filter; a main spacer overlapping the third color filter; and an auxiliary spacer overlapping the first color filter or the second color filter and being shorter than the main spacer. The third color filter includes a first portion and a second portion. The first portion overlaps the first color filtering member. The second portion neighbors the first portion and is thicker than the first portion.

公开(公告)号：US20170346043A1

公开(公告)日：2017-11-30

申请号：US15675588

申请日：2017-08-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Duk Jin LEE ,  Woo Suk JUNG ,  Tae Eun KIM ,  Ji Eun PARK

IPC: H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5275 ,  H01L27/322 ,  H01L51/524 ,  H01L2251/558

Abstract: An organic light emitting diode display including: a plurality of pixels on a substrate; an encapsulation substrate facing the substrate; a color filter on one surface of the encapsulation substrate facing the substrate and including a red filter, a green filter, and a blue filter; and an overcoat layer including a first region covering the red filter, a second region covering the green filter, and a third region covering the blue filter. At least one of the first region, the second region, and the third region has an optimized refractive index and/or an optimized thickness.

公开(公告)号：US20240297285A1

公开(公告)日：2024-09-05

申请号：US18440774

申请日：2024-02-13

Applicant: Samsung Display Co., LTD.

Inventor： Myeong Su SO ,  Ji Eun PARK

IPC: H01L33/62 ,  H01L25/00 ,  H01L25/075 ,  H01L33/30

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L25/50 ,  H01L33/30

Abstract: A display device may include: a substrate; a light emitting element on the substrate; a first pixel electrode on one area of the light emitting element and is electrically connected to the light emitting element; and a second pixel electrode on an other area of the light emitting element and is electrically connected to the light emitting element. The light emitting element may include: a first semiconductor layer, an active layer, and second and third semiconductor layers sequentially arranged along a first direction; and an insulative film covering outer surfaces of the first semiconductor layer, the active layer, and the second and third semiconductor layers. An opening exposing at least one side surface of the second semiconductor layer to the outside while penetrating the insulative film. The second pixel electrode may be in contact with the second semiconductor layer.

公开(公告)号：US20240055558A1

公开(公告)日：2024-02-15

申请号：US18339583

申请日：2023-06-22

Applicant: Samsung Display Co., LTD.

Inventor： Ji Eun PARK ,  Tae Jin KONG ,  Myeong Hee KIM ,  Seul Ki KIM ,  Myeong Su SO

IPC: H01L33/20 ,  H01L25/16 ,  H01L33/46 ,  H01L33/00

CPC classification number: H01L33/20 ,  H01L25/167 ,  H01L33/46 ,  H01L33/0062 ,  H01L2933/0025

Abstract: A light emitting element includes a first end surface and a second end surface opposite to each other, the light emitting element includes: a first semiconductor layer disposed at the first end surface; an active layer disposed on the first semiconductor layer; a second semiconductor layer disposed on the active layer; and an electrode layer disposed on the second semiconductor layer and disposed at the second end surface. The first semiconductor layer includes a first part, a second part disposed on the first part and adjacent to the active layer, and a third part disposed between the first part and the second part. A width of the first part and a width of the second part are different from each other, and the third part has different widths at different length positions.

公开(公告)号：US20230231097A1

公开(公告)日：2023-07-20

申请号：US18155583

申请日：2023-01-17

Applicant: Samsung Display Co., LTD.

Inventor： Myeong Su SO ,  Myeong Hee KIM ,  Ji Eun PARK

IPC: H01L33/62 ,  H01L25/16

CPC classification number: H01L33/62 ,  H01L25/167 ,  H01L2933/0066

Abstract: A method for manufacturing a display device is provided. The method includes: placing a light emitting element on a substrate including cell areas; placing an insulating layer on the light emitting element; and separating the cell areas from each other. Light emitting panels are located on the substrate, correspond to each of the cell areas, and include the light emitting element. The separating of the cell areas from each other includes electrically separating the light emitting panels from each other. The electrically separating the light emitting panels from each other is performed after the placing of the insulating layer.