公开(公告)号：US12261245B2

公开(公告)日：2025-03-25

申请号：US18394110

申请日：2023-12-22

Applicant: Samsung Display Co., LTD.

Inventor： Jae Hoon Jung ,  Won Ho Lee ,  Hyun Deok Im

IPC: H01L33/38 ,  H01L33/00

Abstract: A display device includes a first electrode, a second electrode spaced apart from the first electrode and facing the first electrode, a first insulating layer disposed to at least partially cover the first electrode and the second electrode, a second insulating layer disposed on at least a part of the first insulating layer, and a light-emitting element disposed on the second insulating layer between the first electrode and the second electrode, wherein at least a part of a lower surface of the light-emitting element is chemically bonded to the second insulating layer.

公开(公告)号：US12224306B2

公开(公告)日：2025-02-11

申请号：US17395804

申请日：2021-08-06

Applicant: Samsung Display Co., LTD.

Inventor： Eun A Cho ,  Jong Hyuk Kang ,  Won Ho Lee

IPC: H01L27/15 ,  H01L29/786 ,  H01L33/24 ,  H01L33/38

Abstract: A pixel includes a light emitting area including a central portion and an outer portion, a non-light emitting area surrounding the light emitting area, a first electrode and a second electrode that are spaced apart from each other in the light emitting area, and a first light emitting element disposed between the first electrode and the second electrode. The first electrode and the second electrode are spaced apart from each other at a first interval in the central portion, and are spaced apart from each other at a second interval in the outer portion. The second interval is larger than the first interval. An interval between the first electrode and the second electrode gradually increases from the central portion to the outer portion.

公开(公告)号：US10334737B2

公开(公告)日：2019-06-25

申请号：US15438294

申请日：2017-02-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Young Sik Heo ,  Myeong Seok Jeong ,  Won Ho Lee

IPC: H05K3/00 ,  H05K1/11

Abstract: A flexible display device includes a flexible substrate that includes a first side; a display unit disposed in a first region of the first side and that includes a plurality of pixels; and a pad portion disposed in a second region of the first side and that includes a plurality of pad electrodes. The flexible substrate includes a stepwise recess portion disposed along an edge of the first side on which end portions of the pad electrodes are provided.

公开(公告)号：US12261246B2

公开(公告)日：2025-03-25

申请号：US17494446

申请日：2021-10-05

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Deok Im ,  Jong Hyuk Kang ,  Jung Hyun Ahn ,  Won Ho Lee ,  Hae Yun Choi

IPC: H01L33/38 ,  H01L25/16 ,  H01L33/08 ,  H01L33/14 ,  H01L33/20 ,  H01L33/62

Abstract: A display device comprises a first electrode and a second electrode on a substrate, a first insulating layer on the first electrode and the second electrode, light emitting elements on the first insulating layer each having a first end on the first electrode and a second end on the second electrode, a first connection electrode disposed on the first electrode and electrically contacting the first end of each of the light emitting elements, a second connection electrode disposed on the second electrode and electrically contacting the second end of each of the light emitting elements, a second insulating layer on the light emitting elements, the first connection electrode and the second connection electrode, and a third connection electrode disposed on the second insulating layer and electrically contacting the light emitting elements through an opening formed in the second insulating layer that partially exposes the light emitting elements.

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：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：US12119436B2

公开(公告)日：2024-10-15

申请号：US17432610

申请日：2019-08-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won Ho Lee ,  Sung-Chan Jo ,  Jong Hyuk Kang ,  Hyun Deok Im ,  Hyun Min Cho ,  Won Kyu Kim

IPC: H01L33/62 ,  G09G3/32 ,  H01L33/00 ,  H01L33/38

CPC classification number: H01L33/62 ,  G09G3/32 ,  H01L33/005 ,  H01L33/382 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2320/0233 ,  H01L2933/0016 ,  H01L2933/0066

Abstract: A display device may include a substrate, pixels disposed on the substrate, each of the pixels including a first electrode, a second electrode, and a plurality of light emitting elements electrically connected between the first and the second electrodes, and a first oscillator disposed on the substrate and electrically connected to a first electrode of a first pixel of the pixels, the first oscillator including at least one transistor and at least one capacitor.

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：US12080830B2

公开(公告)日：2024-09-03

申请号：US17602138

申请日：2020-01-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won Ho Lee ,  Jong Hyuk Kang ,  Hyun Deok Im ,  Hyun Min Cho

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/00 ,  H01L33/62

CPC classification number: H01L33/387 ,  H01L27/156 ,  H01L33/005 ,  H01L33/62 ,  H01L2933/0016 ,  H01L2933/0066

Abstract: A pixel includes electrode pairs successively disposed in a first direction, and each including a first sub-electrode and a second sub-electrode successively disposed in the first direction; light emitting elements each electrically connected between the first sub-electrode and the second sub-electrode of any one the electrode pairs; a first connection electrode electrically connected between the first sub-electrode of a first electrode pair and a first power supply; and a second connection electrode electrically connected between the second sub-electrode of a last electrode pair and a second power supply. The second sub-electrode of a remaining electrode pair other than the last electrode pair is spaced apart from the first sub-electrode of a subsequent electrode pair with at least one first sub-electrode or at least one second sub-electrode disposed therebetween, and is electrically connected to the first sub-electrode of the subsequent electrode pair.