公开(公告)号：US12183854B2

公开(公告)日：2024-12-31

申请号：US17411664

申请日：2021-08-25

Applicant: Samsung Display Co., LTD.

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

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/62

Abstract: A display device comprises a substrate, a first electrode and a second electrode disposed on the substrate, a first insulating layer disposed on the first electrode and the second electrode, first light emitting elements disposed on the first insulating layer, a first connection electrode disposed on the first electrode to contact first ends of the first light emitting elements and a second connection electrode disposed on the second electrode to contact second ends of the first light emitting elements, a second insulating layer disposed on the first light emitting elements, the first connection electrode and the second connection electrode, second light emitting elements disposed on the second insulating layer, a third connection electrode disposed on the first connection electrode to contact first ends of the second light emitting elements, and a fourth connection electrode disposed on the second connection electrode to contact second ends of the second light emitting elements.

公开(公告)号：US11881538B2

公开(公告)日：2024-01-23

申请号：US17519248

申请日：2021-11-04

Applicant: Samsung Display Co., LTD.

Inventor： Cheol Ku Kang ,  Buem Joon Kim ,  Won Kyu Kim

IPC: H01L33/00 ,  H01L21/68

CPC classification number: H01L33/005 ,  H01L21/681 ,  H01L2933/0066

Abstract: An apparatus for manufacturing a display device, comprising a stage, a first electric-field-applying module on a first side of the stage, and including first probe pins, a first light-irradiating module above the stage, and configured to irradiate light to the stage, a first light emission driver configured to transmit a first emission driving signal to the first light-irradiating module, and a signal output unit configured to output a first emission timing signal for setting light irradiation timing of the first light-irradiating module to the first light emission driver, to output a first alignment signal to any one of the first probe pins, and to output a second alignment signal to another one of the first probe pins, wherein the first emission timing signal and the second alignment signal are alternating current (AC) signals, and wherein periods of the first emission timing signal and the second alignment signal are the same.

公开(公告)号：US11728196B2

公开(公告)日：2023-08-15

申请号：US17191018

申请日：2021-03-03

Applicant: Samsung Display Co., Ltd.

Inventor： Won Ho Lee ,  Buem Joon Kim ,  Jong Hyuk Kang ,  Hyun Deok Im ,  Chung Sic Choi

IPC: H01L21/68 ,  H01L21/67 ,  H01L23/00 ,  B41J2/095 ,  H01L25/075

CPC classification number: H01L21/68 ,  H01L21/6715 ,  H01L24/75 ,  H01L25/0753 ,  B41J2/095 ,  H01L2224/759 ,  H01L2224/75251 ,  H01L2224/75252 ,  H01L2224/75283 ,  H01L2224/75501 ,  H01L2224/75655 ,  H01L2224/75701 ,  H01L2924/12041

Abstract: An apparatus for aligning dipoles is provided. The apparatus includes: an electric field forming unit including a stage and a probe unit, the probe unit being configured to form an electric field on the stage; an inkjet printing device including an inkjet head, the inkjet head being configured to spray ink including a solvent and dipoles dispersed in the solvent onto the stage; a light irradiation device configured to irradiate light onto the stage; and a temperature control device including a temperature control unit, the temperature control unit being configured to control a temperature of the solvent sprayed on the stage.

公开(公告)号：US12113047B2

公开(公告)日：2024-10-08

申请号：US17545439

申请日：2021-12-08

Applicant: Samsung Display Co., LTD.

Inventor： Jung Hyun Ahn ,  Buem Joon Kim ,  Won Ho Lee ,  Hyun Deok Im

IPC: H01L23/00 ,  B41M5/00 ,  H01L25/16

CPC classification number: H01L24/95 ,  B41M5/0023 ,  H01L24/76 ,  H01L25/167 ,  H01L24/82 ,  H01L2224/7655 ,  H01L2224/76655 ,  H01L2224/82101 ,  H01L2224/95102 ,  H01L2224/95145

Abstract: An ink leveling device includes a stage on which a target substrate is disposed, base frames disposed at sides of the stage, moving members coupled to the base frames and movable upward and downward, and at least one plate coupled to the moving members and disposed to press the target substrate. Light-emitting element ink is disposed on the target substrate.

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：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：US12237364B2

公开(公告)日：2025-02-25

申请号：US17747602

申请日：2022-05-18

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Deok Im ,  Buem Joon Kim ,  Won Ho Lee ,  Hae Yun Choi

IPC: H01L27/15 ,  H01L33/38

Abstract: A display device includes: a first sub-pixel having a first emission area and a first sub-area adjacent to each other in a first direction; and a bank extending around a portion of the first emission area and the first sub-area. The bank includes: a first wall extending around the first sub-area; and a second wall adjacent to the first emission area in a second direction crossing the first direction. The second wall and the first wall are spaced apart from each other in the first direction.

公开(公告)号：US12218177B2

公开(公告)日：2025-02-04

申请号：US17454016

申请日：2021-11-08

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L27/15 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44

Abstract: A display device in accordance with some embodiments may include a base layer, a first bank pattern and a second bank pattern on the base layer, and spaced apart from each other in a first direction, a first electrode overlapping the first bank pattern, a second electrode overlapping the second bank pattern, and a light emitting element aligned between the first electrode and the second electrode, wherein a distance between an end of the first electrode and an end of the first bank pattern differs from a distance between an end of the second electrode and an end of the second bank pattern in the first direction.

公开(公告)号：US11949044B2

公开(公告)日：2024-04-02

申请号：US17494654

申请日：2021-10-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Buem Joon Kim ,  Hyun Deok Im

IPC: H01L33/36 ,  H01L21/68 ,  H01L25/075

CPC classification number: H01L33/36 ,  H01L21/68 ,  H01L25/0753 ,  H01L2221/68309 ,  H01L2933/0016

Abstract: A display device and a method of manufacturing the same are provided. The display device includes a first alignment electrode and a second alignment electrode spaced apart from each other, a light emitting element between the first alignment electrode and the second alignment electrode, a first auxiliary electrode at a first side of the light emitting element in a plan view, and separated from the first alignment electrode, and a second auxiliary electrode at a second side of the light emitting element in a plan view, and separated from the second alignment electrode, wherein an alignment signal is configured to be applied to the first alignment electrode, and wherein a first auxiliary signal of a phase that is different from a phase of the alignment signal is configured to be applied to the first auxiliary electrode.

公开(公告)号：US20220254958A1

公开(公告)日：2022-08-11

申请号：US17494654

申请日：2021-10-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Buem Joon Kim ,  Hyun Deok Im

IPC: H01L33/36 ,  H01L21/68

Abstract: A display device and a method of manufacturing the same are provided. The display device includes a first alignment electrode and a second alignment electrode spaced apart from each other, a light emitting element between the first alignment electrode and the second alignment electrode, a first auxiliary electrode at a first side of the light emitting element in a plan view, and separated from the first alignment electrode, and a second auxiliary electrode at a second side of the light emitting element in a plan view, and separated from the second alignment electrode, wherein an alignment signal is configured to be applied to the first alignment electrode, and wherein a first auxiliary signal of a phase that is different from a phase of the alignment signal is configured to be applied to the first auxiliary electrode.