公开(公告)号：US20250058560A1

公开(公告)日：2025-02-20

申请号：US18666247

申请日：2024-05-16

Applicant: Samsung Display Co., LTD. ,  Soonchunhyang University Industry Academy Cooperation Foundation

Inventor： Junghan SEO ,  Kye Si KWON ,  Woo Yong SUNG ,  Seung Yong SONG ,  Jeongyeop JO ,  Jinsol LEE

IPC: B41J2/045

Abstract: An inkjet printing system includes: an inkjet head unit including a nozzle for discharging ink, a driving unit for generating and outputting a driving voltage for discharging the ink from the nozzle, a first impedance adjusting unit disposed between an input terminal of the inkjet head unit and an output terminal of the driving unit and including a diode, and a self-sensing circuit unit that is connected to the input terminal of the inkjet head unit and receives a self-sensing voltage from the nozzle to determine whether the nozzle is operating normally.

公开(公告)号：US20250056881A1

公开(公告)日：2025-02-13

申请号：US18927364

申请日：2024-10-25

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hoon JEONG ,  Seung Wook KWON ,  Jae Sik KIM ,  Woo Yong SUNG ,  Seo Yeon LEE ,  Ung Soo LEE ,  Ja Min LEE ,  Jeong Seok LEE ,  Seung Gun CHAE ,  Seung Yeon CHAE

IPC: H01L27/12 ,  G02F1/1333 ,  G02F1/1362 ,  H01L25/16

Abstract: A display device includes a display layer comprising pixels, each of the pixels having at least one thin-film transistor, a connection line electrically connected to the at least one thin-film transistor, the connection line being exposed on a lower surface of the display layer through a first contact hole formed in the display layer, a barrier layer disposed on the lower surface of the display layer and including a second contact hole connected to the first contact hole, a lead line disposed on a lower surface of the barrier layer and electrically connected to the connection line through the second contact hole, a pad part disposed on the lower surface of the barrier layer and electrically connected to the lead line, and a lower film overlapping the lower surface of the barrier layer and the lead line.

公开(公告)号：US20240224588A1

公开(公告)日：2024-07-04

申请号：US18608893

申请日：2024-03-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Junghan SEO ,  Woo Yong SUNG

IPC: H10K59/121 ,  H10K50/844 ,  H10K59/65 ,  H10K71/00 ,  H10K77/10 ,  H10K59/12

CPC classification number: H10K59/121 ,  H10K50/844 ,  H10K59/65 ,  H10K71/00 ,  H10K77/10 ,  H10K59/1201

Abstract: A display panel according to an embodiment of the present invention includes an interlayer insulating layer, a pixel layer including a lower insulating layer between the interlayer insulating layer and a base substrate, an encapsulation layer including a first inorganic layer, and a first blocking groove in the display area, adjacent to a module hole, passing through the interlayer insulating layer to expose a portion of a top surface of the lower insulating layer, and the first blocking groove is surrounded by the first inorganic layer to contact the first inorganic layer.

公开(公告)号：US20240138234A1

公开(公告)日：2024-04-25

申请号：US18224734

申请日：2023-07-20

Applicant: Samsung Display Co., LTD.

Inventor： Woo Yong SUNG ,  Seung Yong SONG ,  Jeong Seok LEE

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/121 ,  H10K59/122 ,  H10K59/131 ,  H10K71/20

CPC classification number: H10K59/873 ,  H10K59/1201 ,  H10K59/1213 ,  H10K59/122 ,  H10K59/131 ,  H10K71/231

Abstract: A display device includes a substrate including a display area and a non-display area; a light-emitting array layer; an encapsulation structure; pads disposed in a pad area which is a part of the non-display area on the substrate; a dam structure disposed in the non-display area on the substrate and surrounding an edge of the display area; an encapsulation auxiliary structure corresponding to another part of the non-display area except the pad area, surrounding a part of an edge of the display area, and disposed between the dam structure and an edge of the substrate; and a first multilayer disposed between the substrate and each of the dam structure and the encapsulation auxiliary structure, and including an undercut structure by two or more different metal materials which are stacked.

公开(公告)号：US20240122039A1

公开(公告)日：2024-04-11

申请号：US18225241

申请日：2023-07-24

Applicant: Samsung Display Co., LTD.

Inventor： Woo Yong SUNG ,  Tae Wook KANG

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

CPC classification number: H10K59/873 ,  H10K59/1201 ,  H10K59/122

Abstract: A display device includes a substrate including a sub-display area including a transmission area and a main display area adjacent to the sub-display area, a thin film transistor layer disposed on the main display area and the sub-display area, a light emitting element layer disposed on the thin film transistor layer, a thin film encapsulation layer disposed on the light emitting element layer, where first and second through holes are defined through the transmission area to overlap each other, a first planarization layer disposed under the substrate in the main display area and the transmission area to fill the second through hole, and a second planarization layer disposed on the thin film encapsulation layer in the main display area and the transmission area to fill the first through hole. In the transmission area, the first planarization layer and the second planarization layer are in contact with each other.

公开(公告)号：US20230402436A1

公开(公告)日：2023-12-14

申请号：US18328875

申请日：2023-06-05

Applicant: Samsung Display Co., LTD.

Inventor： Jin Ho HYUN ,  Oh June KWON ,  Woo Yong SUNG

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

CPC classification number: H01L25/0753 ,  H01L33/62 ,  H01L33/382 ,  H01L25/167

Abstract: A display device may include light emitting elements disposed on a first surface of a substrate, a connection electrode disposed on a second surface of the substrate, and a via layer disposed on the connection electrode, and including at least one depression. The passivation layer may be disposed in the depression of the via layer.

公开(公告)号：US20230326935A1

公开(公告)日：2023-10-12

申请号：US18192161

申请日：2023-03-29

Applicant: Samsung Display Co., LTD.

Inventor： Jin Ho HYUN ,  Woo Yong SUNG

IPC: H01L27/12 ,  H01L33/62 ,  H01L23/00 ,  H01L25/16

CPC classification number: H01L27/1248 ,  H01L27/1292 ,  H01L33/62 ,  H01L24/05 ,  H01L25/167 ,  H01L2224/08145 ,  H01L2224/06181 ,  H01L2224/05573 ,  H01L24/16 ,  H01L24/06 ,  H01L24/08 ,  H01L2224/05572 ,  H01L27/124 ,  H01L2924/12041 ,  H01L2224/16225

Abstract: The display device includes light emitting elements disposed on a first surface of a substrate, a connection electrode disposed on a second surface of the substrate, a first protective layer disposed on the connection electrode, and a second protective layer disposed on the first protective layer. A surface roughness of the second protective layer is greater than a surface roughness of the first protective layer.

公开(公告)号：US20230008148A1

公开(公告)日：2023-01-12

申请号：US17851949

申请日：2022-06-28

Applicant: Samsung Display Co., LTD.

Inventor： Jin Ho HYUN ,  Hee Chang YOON ,  Hyoung Sub LEE ,  Hye Min LEE ,  Oh June KWON ,  Woo Yong SUNG

IPC: H01L27/32 ,  G06F3/041 ,  G06F3/044

Abstract: A display device comprises a substrate; a first electrode on the substrate; a bank layer on the substrate and comprising an opening exposing the first electrode; a spacer on the bank layer and having a first thickness; a protrusion on the bank layer, spaced apart from the spacer, and having a second thickness smaller than the first thickness; and an emissive layer on the first electrode exposed by the bank layer, wherein the protrusion comprises a first protrusion pattern and a second protrusion pattern spaced apart from the first protrusion pattern with a valley hole therebetween.

公开(公告)号：US20220320448A1

公开(公告)日：2022-10-06

申请号：US17844796

申请日：2022-06-21

Applicant: Samsung Display Co., LTD.

Inventor： Seung Wook KWON ,  Jeong Seok LEE ,  Chan Ho MOON ,  Woo Yong SUNG

IPC: H01L51/00 ,  H01L51/52

Abstract: A display device includes a display panel including a main area, a bending area at which the display panel is bendable, and a sub area, in order. The main area includes a display area and a non-display area which is adjacent to the display area. The bending area connects the sub area to the main area at the non-display area thereof, and is recessed from outer side surfaces of the main area and the sub area, to define a recess portion of the display panel at the bending area.

公开(公告)号：US20220077195A1

公开(公告)日：2022-03-10

申请号：US17400792

申请日：2021-08-12

Applicant: Samsung Display Co., LTD.

Inventor： Se Hoon JEONG ,  Seung Wook KWON ,  Jae Sik KIM ,  Woo Yong SUNG ,  Seo Yeon LEE ,  Ung Soo LEE ,  Ja Min LEE ,  Jeong Seok LEE ,  Seung Gun CHAE ,  Seung Yeon CHAE

IPC: H01L27/12 ,  H01L25/16

Abstract: A display device includes a display layer comprising pixels, each of the pixels having at least one thin-film transistor, a connection line electrically connected to the at least one thin-film transistor, the connection line being exposed on a lower surface of the display layer through a first contact hole formed in the display layer, a barrier layer disposed on the lower surface of the display layer and including a second contact hole connected to the first contact hole, a lead line disposed on a lower surface of the barrier layer and electrically connected to the connection line through the second contact hole, a pad part disposed on the lower surface of the barrier layer and electrically connected to the lead line, and a lower film overlapping the lower surface of the barrier layer and the lead line.