公开(公告)号：US20220384518A1

公开(公告)日：2022-12-01

申请号：US17818345

申请日：2022-08-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun Min CHO ,  Dae Hyun KIM ,  Jin Oh KWAG ,  Dong Hyun KIM ,  Keun Kyu SONG ,  Hyun Deok IM ,  Sung Chan JO

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

Abstract: A display device comprises a first electrode, a second electrode disposed to be spaced apart from the first electrode and face the first electrode, a first insulating layer disposed to cover the first electrode and the second electrode, a second insulating layer disposed on at least a part of the first insulating layer and exposing at a part of a region where the first electrode and the second electrode overlaps the first insulating layer and at least one light emitting element on the exposed first insulating layer between the first electrode and the second electrode, wherein the second insulating layer includes at least one opening exposing the first insulating layer and disposed to be spaced apart from each other on a region where the first electrode and the second electrode face each other, and a bridge portion between the openings, and the light emitting element is disposed on the opening.

公开(公告)号：US20220328742A1

公开(公告)日：2022-10-13

申请号：US17843314

申请日：2022-06-17

Applicant: Samsung Display Co., Ltd.

Inventor： Dae Hyun KIM ,  Hyun Min CHO ,  Hyun Deok IM ,  Jong Hyuk KANG ,  Keun Kyu SONG ,  Joo Yeol LEE ,  Bek Hyun LIM ,  SUNG-CHAN JO

IPC: H01L33/62 ,  H01L25/075 ,  H01L25/16 ,  H01L27/12 ,  H01L33/38

Abstract: A light emitting device may include: a substrate including a plurality of unit light emitting regions; and first to fourth insulating layers sequentially on the substrate. Each of the unit light emitting regions may include: at least one light emitting element on the first insulating layer, the at least one light emitting element having a first end portion and a second end portion in a length direction thereof; first and second partition walls on the substrate, and the first and second partition walls being spaced apart from each other; a first reflective electrode on the first partition wall and a second reflective electrode on the second partition wall; a first contact electrode on the first reflective electrode, the first contact electrode connecting the first reflective electrode and the first end portion of the light emitting element; a second contact electrode on the second reflective electrode, the second contact electrode connecting the second reflective electrode and the second end portion of the light emitting element; and a conductive pattern provided between the first insulating layer and the first contact electrode, the conductive pattern surrounding the first and second reflective electrodes when viewed on a plane.

公开(公告)号：US20220254959A1

公开(公告)日：2022-08-11

申请号：US17626019

申请日：2020-06-03

Applicant: Samsung Display Co., LTD.

Inventor： Seung Geun LEE ,  Dong Uk KIM ,  Dae Hyun KIM ,  Se Young KIM ,  Hyun Min CHO ,  Hyung Rae CHA

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

Abstract: A light emitting element having a shape extending in a direction includes a first semiconductor layer and a second semiconductor layer, an active layer between the first and second semiconductor layers, a first electrode layer on a second surface opposite to a first surface of the first semiconductor layer facing the active layer, a second electrode layer on a second surface opposite to a first surface of the second semiconductor layer facing the active layer, and an insulating film surrounding a side surface of the active layer, a side surface of the first electrode layer, and a side surface of the second electrode layer, wherein a first area including the insulating film adjacent to a side surface of the active layer has a thickness larger than a thickness of a second area including the insulating film adjacent to a side surface of the first electrode layer.

公开(公告)号：US20220231080A1

公开(公告)日：2022-07-21

申请号：US17605781

申请日：2020-01-16

Applicant: SAMSUNG DISPLAY Co., LTD.

Inventor： Xinxing LI ,  Tae Jin KONG ,  Dae Hyun KIM ,  Veidhes BASRUR ,  Hyun Min CHO

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/24 ,  H01L33/44 ,  H01L33/38

Abstract: A display device includes a pixel disposed in a display area. The pixel includes a first electrode; a first insulating layer disposed on the first electrode, and including openings, each of the openings exposing different areas of the first electrode and defining respective cells; light emitting elements disposed in the respective cells, each of the light emitting elements including a first end electrically connected to the first electrode; and a second end protruding upward from the first insulating layer; and a second electrode disposed on the light emitting elements, and electrically connected to the second ends of each of the light emitting elements.

公开(公告)号：US20220223760A1

公开(公告)日：2022-07-14

申请号：US17614724

申请日：2020-05-20

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Deok IM ,  Jong Hyuk KANG ,  Dae Hyun KIM ,  Won Hee NAM ,  Ki Sun JANG ,  Hyun Min CHO

IPC: H01L33/38 ,  H01L27/15

Abstract: A display device includes at least one pixel; at least one electrode spaced apart from each other in each of the at least one pixel; and at least one light-emitting element disposed between the at least one electrode, wherein the at least one electrode include at least one inner electrode disposed adjacent to the center of each of the at least one pixel; and at least one outer electrode spaced apart from each of the at least one inner electrode, a distance between the central portion of the at least one pixel and the at least one outer electrode is greater than a distance between the central portion of the at least one pixel and the inner electrode, and a width of the at least one inner electrode is different from a width of the at least one outer electrode.

公开(公告)号：US20220028923A1

公开(公告)日：2022-01-27

申请号：US17277284

申请日：2019-03-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Xinxing LI ,  Hyun Min CHO ,  Dae Hyun KIM ,  Veidhes BASRUR ,  Bek Hyun LIM

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

Abstract: A light emitting device may include: a first emission area including a first light emitting diode: a second emission area including a second light emitting diode, at least one pair of first and second partition walls facing each other in each of the first and second emission areas at least one first electrode on the first partition wail to cover the first partition wall, and being electrically connected to a first end of at least one of the first and second light emitting diodes; and at least one second electrode on the second partition wall to cover the second partition wall, and being electrically connected to a second end of at least one of the first and second light emitting diodes. The first and second partition walls may have, in the first emission area, a structure different from that in the second emission area.

公开(公告)号：US20210396654A1

公开(公告)日：2021-12-23

申请号：US17205487

申请日：2021-03-18

Applicant: Samsung Display Co., LTD.

Inventor： Je Won YOO ,  Basrur VEIDHES ,  Dae Hyun KIM ,  Hyun Min CHO ,  Jong Won LEE ,  Joo Yeol LEE

IPC: G01N21/25 ,  G02B21/06 ,  G02B21/26 ,  G02B21/36 ,  G01N21/17

Abstract: An optical inspection apparatus includes a stage that supports a target substrate, the target substrate including a plurality of light emitting elements, a jig that applies an electrical signal to the target substrate, the jig including a regulation resistor, a microscope that generates magnified image data of the target substrate, a camera that captures the magnified image data to generate a color image of the target substrate, and an optical measurement unit that captures the magnified image data of the target substrate to generate a spectrum image and measure optical characteristics of the target substrate.

公开(公告)号：US20210391380A1

公开(公告)日：2021-12-16

申请号：US17284319

申请日：2019-04-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Xinxing LI ,  Tae Jin KONG ,  Hee Keun LEE ,  Dae Hyun KIM ,  Hyun Min CHO ,  Chang Il TAE

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

Abstract: A light emitting device may include a first electrode disposed on a substrate; a first insulating layer disposed on the substrate and overlapping at least a part of the first electrode; a second electrode disposed on the first insulating layer and spaced apart from the first electrode; and at least one light emitting diode electrically connected between the first electrode and the second electrode. The first electrode and the second electrode may be disposed on different layers on the substrate, the first insulating layer is disposed between the first electrode and the second electrode, and the first electrode and the second electrode are spaced apart from each other so as not to overlap each other in a plan view.

公开(公告)号：US20210343894A1

公开(公告)日：2021-11-04

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

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：US20210091255A1

公开(公告)日：2021-03-25

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.