公开(公告)号：US20210367109A1

公开(公告)日：2021-11-25

申请号：US17120970

申请日：2020-12-14

Applicant: Samsung Display Co., LTD.

Inventor： Myeong Hun SONG ,  Sung Geun BAE ,  Jeong Hyun LEE ,  Jong Chan LEE ,  Tae Hee LEE ,  Woong Hee JEONG

IPC: H01L33/38 ,  H01L27/15

Abstract: A display device includes a light emitting element including a first semiconductor layer; a second semiconductor layer; and a third semiconductor layer disposed between the first semiconductor layer and the second semiconductor layer; a first contact electrode electrically connected to the first semiconductor layer of the light emitting element; a second contact electrode electrically connected to the second semiconductor layer of the light emitting element; and a third contact electrode disposed between the first contact electrode and the second contact electrode and electrically connected to the third semiconductor layer of the light emitting element, wherein the first semiconductor layer of the light emitting element and the second semiconductor layer of the light emitting element are doped with a first dopant having a first polarity, and the third semiconductor layer of the light emitting element is doped with a second dopant having a second polarity different from the first polarity.

公开(公告)号：US20240203966A1

公开(公告)日：2024-06-20

申请号：US18364551

申请日：2023-08-03

Applicant: Samsung Display Co., LTD.

Inventor： Sung Geun BAE ,  Jang Soon PARK ,  Tae Hee LEE ,  Hyun Wook LEE ,  Da Sol JEONG

IPC: H01L25/16 ,  H01L27/12

CPC classification number: H01L25/167 ,  H01L27/1259

Abstract: A display device includes sub-alignment areas including a pathway area defined by a first adjacent electrode and a second adjacent electrode spaced apart from each other in a first direction. A pathway area includes a first pathway area and a second pathway area spaced apart from each other along a second direction different from the first direction. The first adjacent electrode of the first pathway area and the first adjacent electrode of the second pathway area are spaced apart from each other with an open area therebetween. The second adjacent electrode of the first pathway area and the second adjacent electrode of the second pathway area are spaced apart from each other with the open area therebetween.

公开(公告)号：US20240120453A1

公开(公告)日：2024-04-11

申请号：US18362628

申请日：2023-07-31

Applicant: Samsung Display Co., LTD.

Inventor： Jang Soon PARK ,  Hyun Wook LEE ,  Sung Geun BAE

IPC: H01L33/62 ,  H01L33/20

CPC classification number: H01L33/62 ,  H01L33/20 ,  H01L25/167

Abstract: A display device includes a substrate, a via layer above the substrate, and including a protrusion, an insulating pattern above the protrusion, and having a width that is greater than a width of the protrusion, first and second electrodes above the via layer, and spaced apart from each other with the protrusion and the insulating pattern therebetween, a first insulating layer above the protrusion, the insulating pattern, the first electrode, and the second electrode, a light-emitting element above the first insulating layer, and between the first electrode and the second electrode, a first connection electrode connected to a first end of the light-emitting element, and a second connection electrode connected to a second end of the light-emitting element.

公开(公告)号：US20240097074A1

公开(公告)日：2024-03-21

申请号：US18468468

申请日：2023-09-15

Applicant: Samsung Display Co., LTD.

Inventor： Myeong Hun SONG ,  Jang Soon PARK ,  Sung Geun BAE ,  Tae Hee LEE ,  Hyun Wook LEE ,  Kwang Taek HONG

IPC: H01L33/38 ,  H01L25/16

CPC classification number: H01L33/38 ,  H01L25/167

Abstract: A display device includes a substrate including an emission area and a non-emission area, alignment electrodes arranged to be spaced from each other in a first direction on the substrate and extending in a second direction crossing the first direction, and pixels arranged along the second direction. Pixels adjacent to each other in the second direction from among the pixels may be configured to emit light of different colors. Each of the pixels may include first light emitting elements on the alignment electrodes and arranged along the second direction, second light emitting elements on the alignment electrodes, spaced from the first light emitting elements in the first direction, and arranged along the second direction, a first pixel electrode electrically connected to a first driving power and first ends of the first light emitting elements, a second pixel electrode spaced from the first pixel electrode in the first direction.

公开(公告)号：US20240072229A1

公开(公告)日：2024-02-29

申请号：US18453181

申请日：2023-08-21

Applicant: Samsung Display Co., LTD.

Inventor： Myeong Hun SONG ,  Jang Soon PARK ,  Sung Geun BAE ,  Tae Hee LEE ,  Hyun Wook LEE

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

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L33/38

Abstract: A display device includes: light emitting elements, each of the light emitting elements including a first end having a first polarity and a second end having a second polarity different from the first polarity; and a first type connection electrode contacting the first ends and/or the second ends of the light emitting elements, wherein a first type connection electrode includes: a middle portion extending in a first direction; a first electrode portion extending from the middle portion toward a first side in a second direction intersecting the first direction; a second electrode portion extending from the middle portion toward the first side in the second direction and spaced from the first electrode portion by a first width in the first direction; a third electrode portion extending from the middle portion toward a second side in the second direction; and a fourth electrode portion.

公开(公告)号：US20230299239A1

公开(公告)日：2023-09-21

申请号：US18095098

申请日：2023-01-10

Applicant: Samsung Display Co., LTD.

Inventor： Sung Geun BAE ,  Jang Soon PARK ,  Hyun Wook LEE ,  Da Sol JEONG ,  Su Min CHOI ,  Won Hyeong HEO

IPC: H01L33/38 ,  H01L33/62 ,  H01L33/00 ,  H01L25/075

CPC classification number: H01L33/382 ,  H01L33/62 ,  H01L33/005 ,  H01L25/0753 ,  H01L2933/0016

Abstract: A display device and method for fabrication thereof are provided. The display device includes a first electrode and a second electrode spaced apart from the first electrode in a second direction, light emitting elements disposed on the first electrode and the second electrode, a first insulating layer disposed on the light emitting elements, a first connection electrode disposed on the first electrode and electrically contacting each of the light emitting elements, and a second connection electrode disposed on the second electrode and electrically contacting each of the light emitting elements, and the first insulating layer includes a first portion and a second portion having a thickness larger than a thickness of the first portion of the first insulating layer.

公开(公告)号：US20230200176A1

公开(公告)日：2023-06-22

申请号：US17954681

申请日：2022-09-28

Applicant: Samsung Display Co., LTD.

Inventor： Jin Woo LEE ,  Jeong Nyun KIM ,  Sung Geun BAE ,  Byeong Jae AHN ,  Jeong Hyun LEE

IPC: H01L27/32 ,  H01L33/50 ,  H01L51/56 ,  H01L51/52 ,  H01L33/58

CPC classification number: H01L27/322 ,  H01L33/58 ,  H01L33/505 ,  H01L51/56 ,  H01L51/5268 ,  H01L25/167

Abstract: A display device includes including emission areas, a non-emission area. Light emitting elements are disposed on a substrate in the emission areas. A bank is disposed on the substrate in the non-emission area of the substrate and includes openings corresponding to the emission areas. Color conversion patterns are disposed in the openings of the bank and converts a wavelength band of light incident from the light emitting elements to emit light. Organic patterns are disposed on the color conversion patterns and are separated from each other. Color filters are disposed on the organic patterns. The color filters are sequentially stacked in a space between the organic patterns in the non-emission area.

公开(公告)号：US20230005898A1

公开(公告)日：2023-01-05

申请号：US17824398

申请日：2022-05-25

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Wook LEE ,  Young Woon KHO ,  Sung Geun BAE ,  Tae Hee LEE ,  Won Hyeong HEO

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

Abstract: A pixel includes an emission area and a non-emission area; first to fourth alignment electrodes spaced apart from each other in the emission area and an area of the non-emission area; an insulating layer disposed on the first to fourth alignment electrodes; first to fourth bridge patterns disposed on the insulating layer in the non-emission area; a bank disposed on the first to fourth bridge patterns in the non-emission area, and including a first opening and a second opening; first and second pixel electrodes disposed in the emission area; and light emitting elements disposed in the emission area, and electrically connected with the first and second pixel electrodes. The first alignment electrode, the first bridge pattern, and the first pixel electrode are electrically connected to each other. The third alignment electrode, the third bridge pattern, and the second pixel electrode are electrically connected to each other.

公开(公告)号：US20220344540A1

公开(公告)日：2022-10-27

申请号：US17454419

申请日：2021-11-10

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Geun BAE ,  Jang Soon PARK ,  Jeong Hyun LEE ,  Da Sol JEONG ,  Won Hyeong HEO

IPC: H01L33/38 ,  H01L21/68 ,  H01L33/40 ,  H01L25/075 ,  H01L33/00

Abstract: A display device includes: a first light emitting element located between the first and second patterns; a first alignment electrode located on the first pattern, the first alignment electrode having a first inclined surface opposing the first light emitting element; a first connection electrode at a same layer as the first alignment electrode; and first and second electrodes electrically connected to respective end portions of the first light emitting element. Each of the first alignment electrode and the first connection electrode includes first and second electrode layers that are sequentially stacked. A contact hole exposing the first electrode layer of the first connection electrode is formed in the second electrode layer of the first connection electrode. The first electrode is in contact with the first electrode layer of the first connection electrode and a side surface of the second electrode layer of the first connection electrode through the contact hole.

公开(公告)号：US20220328465A1

公开(公告)日：2022-10-13

申请号：US17544149

申请日：2021-12-07

Applicant: Samsung Display Co., LTD.

Inventor： Sung Geun BAE ,  Jeong Hyun LEE ,  Jong Chan LEE ,  Jin Woo LEE ,  Da Sol JEONG ,  Kyung Ah CHOI

IPC: H01L25/16 ,  H01L33/54

Abstract: A display device includes first and second electrodes disposed on a substrate, the first and second electrodes extending in a direction and being parallel to each other, a first insulating layer disposed on the first and second electrodes, light-emitting elements disposed on the first insulating layer, the light-emitting elements having first end portions disposed on the first electrode and second end portions disposed on the second electrode, and a partition disposed on the first insulating layer and being parallel to the first electrode, the partition including a first part that overlaps the light-emitting elements, and second parts that do not overlap the light-emitting elements, wherein a vertical distance from a top surface of the first electrode to a top surface of the first part is equal to a vertical distance from the top surface of the first electrode to top surfaces of the second parts.