公开(公告)号：US20210126158A1

公开(公告)日：2021-04-29

申请号：US17255795

申请日：2019-02-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jong Hyuk KANG ,  Won Ho LEE ,  Hyun Deok IM ,  Young Hoi KIM ,  Jin Young KIM ,  Hyun Min CHO ,  Hae Yun CHOI

IPC: H01L33/00 ,  H01L25/075

Abstract: An apparatus for manufacturing a light emitting display device includes a stage, and at least one electric-field application module disposed on at least one side of the stage. The apparatus further includes at least one of: at least one printing head disposed above the stage, and a heating element disposed adjacent the stage. The at least one electric-field application module includes a probe head having at least one probe pin, and a driver connected to the probe head to move the probe head.

公开(公告)号：US20190296200A1

公开(公告)日：2019-09-26

申请号：US16440906

申请日：2019-06-13

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Deok IM ,  Jong Hyuk KANG ,  Dae Hyun KIM ,  Joo Yeol LEE ,  Hyun Min CHO

IPC: H01L33/52 ,  H01L33/48 ,  H01L33/56 ,  H01L33/58 ,  H01L25/075

Abstract: A light emitting device includes: a base substrate; a plurality of unit regions provided on the base substrate; a barrier disposed at a boundary of the unit regions to surround each of the unit regions; a dam disposed in each of the unit regions to be spaced apart from the barrier; a first electrode provided in each of unit light emitting regions surrounded by the dam; a second electrode disposed in each of the unit light emitting regions, the second electrode of which at least one region is provided opposite to the first electrode; and one or more LEDs provided in each of the unit light emitting regions, the one or more LEDs being electrically connected between the first electrode and the second electrode.

公开(公告)号：US20180175104A1

公开(公告)日：2018-06-21

申请号：US15701455

申请日：2017-09-12

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Hyuk KANG ,  Hyun Min CHO ,  Dae Hyun KIM ,  Joo Yeol LEE ,  Hyun Deok IM

IPC: H01L27/15 ,  F21K9/68 ,  H01L33/40 ,  H01L33/00

CPC classification number: H01L27/15 ,  F21K9/68 ,  H01L33/005 ,  H01L33/405

Abstract: A light-emitting device includes: a substrate; a unit light-emitting area disposed on the substrate; first and second electrodes disposed in the unit light-emitting area to be separated from each other; a plurality of rod-shaped LEDs disposed between the first and second electrodes; a reflective contact electrode disposed on opposite ends of the rod-shaped LEDs to electrically connect the rod-shaped LEDs to the first and second electrodes; and a light-transmitting structure disposed between the first and second electrodes and extending to cross the rod-shaped LEDs.

公开(公告)号：US20180019377A1

公开(公告)日：2018-01-18

申请号：US15648578

申请日：2017-07-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dae Hyun KIM ,  Jong Hyuk KANG ,  Joo Yeol LEE ,  Hyun Deok IM ,  Chi O CHO ,  Hyun Min CHO

IPC: H01L33/24 ,  H01L27/15 ,  H01L33/38 ,  H01L33/44 ,  H01L33/00 ,  H01L33/32 ,  H01L27/12 ,  G09G3/32

CPC classification number: H01L33/24 ,  G09G3/32 ,  G09G2300/0452 ,  G09G2310/0278 ,  H01L25/0753 ,  H01L27/1214 ,  H01L27/156 ,  H01L33/007 ,  H01L33/0075 ,  H01L33/16 ,  H01L33/325 ,  H01L33/38 ,  H01L33/44 ,  H01L2224/95085 ,  H01L2933/0016 ,  H01L2933/0025

Abstract: A light emitting device includes first and second electrodes spaced apart from each other on a substrate, at least one bar-type LED having a first end on the first electrode and a second end on the second electrode, and an insulative support body between the substrate and the bar-type LED. The at least one bar-type LED has a length greater than a width.

公开(公告)号：US20240363803A1

公开(公告)日：2024-10-31

申请号：US18766027

申请日：2024-07-08

Applicant: Samsung Display Co., Ltd.

Inventor： Dae Hyun KIM ,  Jong Hyuk KANG ,  Joo Yeol LEE ,  Hyun Deok IM ,  Chi O CHO ,  Hyun Min CHO

IPC: H01L33/24 ,  G09G3/32 ,  H01L25/075 ,  H01L27/12 ,  H01L27/15 ,  H01L33/00 ,  H01L33/16 ,  H01L33/32 ,  H01L33/38 ,  H01L33/44

CPC classification number: H01L33/24 ,  H01L27/156 ,  H01L33/007 ,  H01L33/0075 ,  H01L33/16 ,  H01L33/325 ,  H01L33/38 ,  H01L33/44 ,  G09G3/32 ,  G09G2300/0452 ,  G09G2310/0278 ,  H01L25/0753 ,  H01L27/1214 ,  H01L2224/95085 ,  H01L2933/0016 ,  H01L2933/0025

Abstract: A light emitting device including first and second electrodes spaced apart from each other on a substrate, at least one bar-type LED having a first end on the first electrode and a second end on the second electrode, and an insulative support body between the substrate and the bar-type LED. The at least one bar-type LED has a length greater than a width.

公开(公告)号：US20230155067A1

公开(公告)日：2023-05-18

申请号：US17920516

申请日：2021-04-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun Deok IM ,  Won Sik OH ,  Won Ho LEE ,  Jong Hyuk KANG ,  Hyun Min CHO

IPC: H01L33/38 ,  H01L33/20 ,  H01L33/62 ,  H01L25/075 ,  H01L33/00

CPC classification number: H01L33/387 ,  H01L33/20 ,  H01L33/62 ,  H01L25/0753 ,  H01L33/005 ,  H01L2933/0016 ,  H01L2933/0066

Abstract: According to an embodiment, a pixel may include a first area and a second area partitioned in a first direction, (1-1)-th and (2-1)-th electrodes disposed in the first area and spaced apart in a second direction different from the first direction, (1-2)-th and (2-2)-th electrodes disposed in the second area and spaced apart in the second direction, light emitting elements disposed between the (1-1)-th and (2-1)-th electrodes and between the (1-2)-th and (2-2)-th electrodes, a contact electrode disposed on the (1-1)-th and (2-1)-th electrodes and the (1-2)-th and (2-2)-th electrodes, an insulating layer disposed between each of the (1-1)-th and (2-1)-th electrodes and the (1-2)-th and (2-2)-th electrodes, and the contact electrode, and including a first opening exposing a portion of the (1-1)-th electrode; and a first intermediate electrode electrically connecting the contact electrode on the (2-1)-th electrode and the contact electrode on the (1-2)-th electrode.

公开(公告)号：US20230145433A1

公开(公告)日：2023-05-11

申请号：US17802897

申请日：2020-06-08

Applicant: Samsung Display Co., LTD.

Inventor： Jong Hyuk KANG ,  Jin Oh KWAG ,  Won Hee NAM ,  Suk Beom YOU ,  Hyun Min CHO

IPC: B41J2/045 ,  B41J2/11 ,  B41J2/175 ,  B41J2/14

CPC classification number: B41J2/04593 ,  B41J2/11 ,  B41J2/17596 ,  B41J2/14 ,  B41J2002/14491

Abstract: Provided are an inkjet printing device, a method for printing bipolar elements, and a method for manufacturing a display device. The inkjet printing device includes an inkjet head disposed above a stage and including a plurality of nozzles through which ink including bipolar elements each having areas doped with partially different polarities is discharged; an actuator disposed in the inkjet head and adjusting an amount of droplet of the ink discharged through the plurality of nozzles; and at least one sensing part disposed in the inkjet head and measuring a number of bipolar elements discharged through the plurality of nozzles.

公开(公告)号：US20230078237A1

公开(公告)日：2023-03-16

申请号：US17801428

申请日：2020-04-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won Ho LEE ,  Hyun Deok IM ,  Hyun Min CHO ,  Jong Hyuk KANG ,  Sung-Chan JO

IPC: H01L33/00 ,  H01L27/15 ,  H01L33/06 ,  H01L33/24 ,  H01L33/44 ,  H01L21/67 ,  G06T7/00

Abstract: An inspection device, and a method of inspecting and a method of repairing a display panel using the inspection device are provided. The method of inspecting the display panel including light emitting elements includes acquiring an image of the display panel, and determining an alignment degree of the light emitting elements in the display panel.

公开(公告)号：US20230026527A1

公开(公告)日：2023-01-26

申请号：US17778667

申请日：2020-09-03

Applicant: Samsung Display Co., LTD.

Inventor： Jae Hoon JUNG ,  Hye Jung HONG ,  Jong Hyuk KANG ,  Hee Yeon YOO ,  Sung Chan JO ,  Hyun Min CHO

IPC: H01L33/00 ,  H01L51/00 ,  H01L33/38 ,  H01L33/62

Abstract: A light-emitting element includes a first semiconductor layer doped to have a first polarity; a second semiconductor layer doped to have a second polarity that is different from the first polarity; an active layer placed between the first semiconductor layer and the second semiconductor layer; and an insulating layer surrounding at least the outer surface of the active material. The insulating layer includes an insulating film surrounding the active layer, and an element dispersion agent including a magnetic metal and bonded to an outer surface of the insulating film.

公开(公告)号：US20220388303A1

公开(公告)日：2022-12-08

申请号：US17751076

申请日：2022-05-23

Applicant: Samsung Display Co., LTD.

Inventor： Byeong Hoon CHO ,  Jong Hyuk KANG

IPC: B41J2/09 ,  B41J2/045 ,  B41J2/14

Abstract: An inkjet printing apparatus comprises an inkjet head disposed above a stage and including nozzles through which ink including bipolar elements is discharged, the bipolar elements each having regions partially doped with different polarities. At least part of the nozzles is deflected from a direction in case that the nozzles are in a deflected state.