公开(公告)号：US12058898B2

公开(公告)日：2024-08-06

申请号：US17493714

申请日：2021-10-04

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Deok Im ,  Jong Hyuk Kang ,  Buem Joon Kim ,  Eun A Cho

IPC: H10K59/123 ,  H10K59/122

CPC classification number: H10K59/123 ,  H10K59/122

Abstract: A display device includes: a substrate; a bank having a first main opening and sub-openings extending from the first main opening; a first electrode and a second electrode on the first substrate and being spaced apart from each other in a first direction and extending in a second direction; a plurality of light-emitting elements on the first electrode and the second electrode and being spaced apart from each other in the second direction; a first connection electrode on the first electrode and contacting first ends of the light-emitting elements; and a second connection electrode on the second electrode and contacting second ends of the light-emitting elements. The first connection electrode is connected to the first electrode through a first contact, and the second connection electrode is connected to the second electrode through a second contact on the second electrode. The first contact and the second contact overlap the sub-openings.

公开(公告)号：US12046701B2

公开(公告)日：2024-07-23

申请号：US17347286

申请日：2021-06-14

Applicant: Samsung Display Co., Ltd.

Inventor： Eun A Yang ,  Han Su Kim ,  Jong Hyuk Kang ,  Hee Keun Lee

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/44

CPC classification number: H01L33/38 ,  H01L27/156 ,  H01L33/44

Abstract: A display device includes a substrate and a pixel on the substrate. The pixel has an alignment area, and the alignment area has a first alignment area, a second alignment area spaced apart from the first alignment area in a first direction, and a non-alignment area extending around a periphery of the alignment area. The pixel includes: a first electrode and a second electrode extending in the first direction across the alignment area and being spaced apart from each other; a first bank in the non-alignment area and extending along a boundary of the pixel; an alignment control layer including a first alignment control pattern, the first alignment control pattern being spaced apart from the first bank in the non-alignment area between the first alignment area and the second alignment area; and a first light emitting element between the first electrode and the second electrode in the first alignment area.

公开(公告)号：US12040318B2

公开(公告)日：2024-07-16

申请号：US17297346

申请日：2019-02-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Hyuk Kang ,  Hyun Min Cho ,  Dae Hyun Kim ,  Hyun Deok Im

IPC: H01L23/00 ,  H01L25/16 ,  H01L33/24 ,  H01L33/38 ,  H01L33/62

CPC classification number: H01L25/167 ,  H01L24/24 ,  H01L24/82 ,  H01L33/24 ,  H01L33/38 ,  H01L33/62 ,  H01L2224/24147 ,  H01L2224/24991 ,  H01L2224/82007 ,  H01L2224/82101

Abstract: A display device may include: a substrate including a display area and a non-display area; and pixels provided on the display area, and each including sub-pixels each including an emission area and a non-emission area. Each sub-pixel may include a pixel circuit layer including at least one transistor, and a display element layer including at least one light emitting element configured to emit light and connected to the transistor. The display element layer may include: a first electrode and a second electrode spaced apart from each other with the light emitting element interposed therebetween; the light emitting element connected between the first and second electrodes; and a planarization layer provided on the pixel circuit layer, and coming into contact with at least a portion of each of opposite ends of the light emitting element. The planarization layer may overlap with each of the first electrode and the second electrode.

公开(公告)号：US11984548B2

公开(公告)日：2024-05-14

申请号：US17322346

申请日：2021-05-17

Applicant: Samsung Display Co., LTD.

Inventor： Won Ho Lee ,  Buem Joon Kim ,  Jong Hyuk Kang ,  Hyun Deok Im ,  Eun A Cho

IPC: H01L33/62 ,  H01L25/075 ,  H01L25/16 ,  H01L27/12

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/1244

Abstract: A display device includes a plurality of pixels including alignment electrodes and light emitting elements disposed between the alignment electrodes, and the alignment electrodes including outer alignment electrodes and center alignment electrodes disposed between the outer alignment electrodes. A distance between the center alignment electrodes is different from a distance between the center alignment electrodes and the outer alignment electrodes.

公开(公告)号：US11942567B2

公开(公告)日：2024-03-26

申请号：US17377266

申请日：2021-07-15

Applicant: Samsung Display Co. Ltd.

Inventor： Jung Hong Min ,  Dae Hyun Kim ,  Hyun Min Cho ,  Jong Hyuk Kang ,  Dong Uk Kim ,  Seung A Lee ,  Hyun Deok Im ,  Hyung Rae Cha

IPC: H01L33/00 ,  H01L33/30

CPC classification number: H01L33/0093 ,  H01L33/0066 ,  H01L33/30

Abstract: Provided is a method of manufacturing a light-emitting element, the method including positioning a substrate, forming a first separation layer, which includes a first sacrificial layer, an etching control layer on the first sacrificial layer, and a second sacrificial layer on the etching control layer, on the substrate, forming at least one first light-emitting element on the first separation layer, and separating the first light-emitting element from the substrate.

公开(公告)号：US11878522B2

公开(公告)日：2024-01-23

申请号：US17751076

申请日：2022-05-23

Applicant: Samsung Display Co., LTD.

Inventor： Byeong Hoon Cho ,  Jong Hyuk Kang

IPC: B41J2/09 ,  B41J2/14 ,  B41J2/045

CPC classification number: B41J2/09 ,  B41J2/04501 ,  B41J2/14 ,  B41J2002/14491

Abstract: An inkjet printing apparatus comprises an inkjet head disposed above a stage and including nozzles through which ink including bipolar elements is discharged, the bipolar elements each having regions partially doped with different polarities. At least part of the nozzles is deflected from a direction in case that the nozzles are in a deflected state.

公开(公告)号：US11830966B2

公开(公告)日：2023-11-28

申请号：US17195428

申请日：2021-03-08

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Deok Im ,  Jong Hyuk Kang ,  Dae Hyun Kim ,  Joo Yeol Lee ,  Hyun Min Cho

IPC: H01L33/52 ,  H01L25/075 ,  H01L33/38 ,  H01L33/48 ,  H01L33/56 ,  H01L33/58 ,  H01L25/16 ,  H01L27/12 ,  H01L33/20 ,  H01L33/32 ,  H01L33/54 ,  H01L33/62

CPC classification number: H01L33/52 ,  H01L25/0753 ,  H01L33/382 ,  H01L33/385 ,  H01L33/387 ,  H01L33/48 ,  H01L33/483 ,  H01L33/486 ,  H01L33/56 ,  H01L33/58 ,  H01L25/167 ,  H01L27/1214 ,  H01L33/20 ,  H01L33/32 ,  H01L33/54 ,  H01L33/62 ,  H01L2933/005 ,  H01L2933/0033 ,  H01L2933/0091

Abstract: A light emitting device includes: a base substrate; a plurality of unit regions provided on the base substrate; a barrier disposed at a boundary of the unit regions to surround each of the unit regions; a dam disposed in each of the unit regions to be spaced apart from the barrier; a first electrode provided in each of unit light emitting regions surrounded by the dam; a second electrode disposed in each of the unit light emitting regions, the second electrode of which at least one region is provided opposite to the first electrode; and one or more LEDs provided in each of the unit light emitting regions, the one or more LEDs being electrically connected between the first electrode and the second electrode.

公开(公告)号：US11610934B2

公开(公告)日：2023-03-21

申请号：US17395999

申请日：2021-08-06

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Hyuk Kang ,  Hyun Min Cho ,  Dae Hyun Kim ,  Joo Yeol Lee ,  Hyun Deok Im

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/40 ,  F21K9/68 ,  H01L25/075 ,  H01L33/60 ,  H01L33/62

Abstract: A light-emitting device includes: a substrate; a unit light-emitting area disposed on the substrate; first and second electrodes disposed in the unit light-emitting area to be separated from each other; a plurality of rod-shaped LEDs disposed between the first and second electrodes; a reflective contact electrode disposed on opposite ends of the rod-shaped LEDs to electrically connect the rod-shaped LEDs to the first and second electrodes; and a light-transmitting structure disposed between the first and second electrodes and extending to cross the rod-shaped LEDs.

公开(公告)号：US11430912B2

公开(公告)日：2022-08-30

申请号：US17110574

申请日：2020-12-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Hong Min ,  Dae Hyun Kim ,  Seung A Lee ,  Hyun Min Cho ,  Jong Hyuk Kang ,  Dong Uk Kim ,  Hyun Deok Im ,  Hyung Rae Cha

IPC: H01L33/00 ,  H01L27/15 ,  H01L33/32 ,  H01L21/302

Abstract: A light emitting element, a method of manufacturing a light emitting element, and a display device including a light emitting element are provided. A method of manufacturing a light emitting element includes: preparing a lower panel including a substrate and a first sub conductive semiconductor layer on the substrate; forming a first mask layer including at least one mask pattern on at least a part of the lower panel to be spaced apart from each other and an opening region in which the mask patterns are spaced apart from each other; laminating a first conductive semiconductor layer, an active material layer, and a second conductive semiconductor layer on the first mask layer to form an element laminate; etching the element laminate in a vertical direction to form an element rod; and removing the mask pattern to separate the element rod from the lower panel.

公开(公告)号：US11074858B2

公开(公告)日：2021-07-27

申请号：US16214786

申请日：2018-12-10

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Min Cho ,  Sung Chul Kim ,  Dae Hyun Kim ,  Hye Yong Chu ,  Jong Hyuk Kang ,  Keun Kyu Song ,  Joo Yeol Lee ,  Bek Hyun Lim ,  Hyun Deok Im

IPC: G09G3/3233 ,  H01L33/20 ,  H01L33/00 ,  H01L33/44 ,  H01L33/52 ,  H01L33/38 ,  H01L25/075 ,  H01L25/16 ,  H05B45/40 ,  H01L33/62

Abstract: A display device includes: a substrate; a display element layer on one surface of the substrate and including at least one light emitting element emitting light; and a pixel circuit portion on the display element layer and including at least one transistor electrically connected to the light emitting element, wherein the display element layer includes: a first electrode on the substrate and electrically connected to one end of the light emitting element; a second electrode on the substrate and electrically connected to the other end of the light emitting element; and an insulation layer on the substrate including the second electrode, and having a first opening exposing a portion of the second electrode, and wherein the second electrode is electrically connected to the transistor through the first opening.