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：US20220392947A1

公开(公告)日：2022-12-08

申请号：US17640311

申请日：2020-08-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won Sik OH ,  Su Mi MOON ,  Hyun Min CHO

IPC: H01L27/15 ,  G09G3/3233 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44

Abstract: Provided herein may be a display device. The display device may include: a first connection electrode extending in a first direction, and electrically connected to a first power line to which a first power supply is applied; a second connection electrode spaced apart from the first connection electrode, and electrically connected to a second power line to which a second power supply is applied; a first electrode extending from the first connection electrode; a second electrode extending from the second connection electrode, and disposed in parallel to the first electrode with a predetermined distance therebetween; and a plurality of light emitting elements each including a first end electrically connected to the first electrode, and a second end electrically connected to the second electrode. Each of the first electrode and the second electrode may include a bent portion.

公开(公告)号：US20220392923A1

公开(公告)日：2022-12-08

申请号：US17755970

申请日：2020-10-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won Sik OH ,  Hyun Min CHO ,  Dae Hyun KIM

IPC: H01L27/12 ,  H01L25/16 ,  H01L23/00 ,  H01L33/62 ,  G09G3/32

Abstract: A display device may include a first scan line, a first data line and a second data line, a first read-out line and a second read-out line. A first sub-pixel may be connected to the first scan line, the first data line, and the first read-out line. A second sub-pixel may be connected to the first scan line, the first data line, and the second read-out line. A third sub-pixel may be connected to the first scan line, the second data line, and the first read-out line. Each of the first sub-pixel, the second sub-pixel, and the third sub-pixel may include at least one light emitting element.

公开(公告)号：US20220375990A1

公开(公告)日：2022-11-24

申请号：US17640693

申请日：2020-08-24

Applicant: SAMSUNG DISPLAY CO., LTD.

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

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

Abstract: A display device includes a pixel in a display area. The pixel includes: spaced apart first and second electrodes; a first insulating layer on the first electrode and the second electrode and between the first electrode and the second electrode and having a first etch selectivity; a first insulating pattern on the first insulating layer between the first electrode and the second electrode, and having a second etch selectivity; a light emitting element on the first insulating pattern; a second insulating pattern having the second etch selectivity and being on one area of the light emitting element such that a first end and the second end of the light emitting element are exposed; and third and fourth electrodes configured to electrically connect the first end and the second end of the light emitting element to the first and second electrodes, respectively.

公开(公告)号：US20220344536A1

公开(公告)日：2022-10-27

申请号：US17585864

申请日：2022-01-27

Applicant: Samsung Display Co., LTD.

Inventor： Won Ho LEE ,  Seung A LEE ,  Jin Hyuk JANG ,  Jong Hyuk KANG ,  Hyun Deok IM ,  Sang Ho JEON ,  Eun A CHO ,  Hyun Min CHO

IPC: H01L33/02 ,  H01L25/16

Abstract: A light-emitting element includes a first semiconductor layer doped with an n-type dopant, a second semiconductor layer doped with a p-type dopant, a light emitting layer disposed between the first semiconductor layer and the second semiconductor layer, and an insulating film that surrounds the first semiconductor layer, the second semiconductor layer, and the light emitting layer. A doping concentration of the first semiconductor layer is in a predetermined range. A display device includes the light-emitting element.

公开(公告)号：US20220216179A1

公开(公告)日：2022-07-07

申请号：US17603810

申请日：2020-01-17

Applicant: Samsung Display Co., LTD.

Inventor： Eun A YANG ,  Jong Hyuk KANG ,  Hyun Deok IM ,  Hyun Min CHO

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

Abstract: A display device may include: a substrate including a display area and a non-display area; and at least one pixel disposed in the display area, and including at least one pixel having an emission area formed to emit light. The at least one pixel may include: a plurality of first electrodes disposed on the substrate and arranged in a column direction; second electrodes spaced apart from the first electrodes; a first connection line extending in the column direction, and connecting each of the first electrodes to the first electrodes adjacent thereto; a light emitting element electrically connected to at least one of the first electrodes and at least one of the second electrodes; and an insulating pattern overlapping the first connection line.

公开(公告)号：US20220199863A1

公开(公告)日：2022-06-23

申请号：US17513302

申请日：2021-10-28

Applicant: Samsung Display Co., LTD.

Inventor： Se Hun KIM ,  Chang Hee LEE ,  Yun Hyuk KO ,  Jun Bo SIM ,  Jae Kook HA ,  Dong Uk KIM ,  In Pyo KIM ,  Je Won YOO ,  Hyun Min CHO ,  Chan Woo JOO ,  Na Mi HONG

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

Abstract: A method for manufacturing a light emitting element includes forming a first semiconductor layer on a substrate, the first semiconductor layer including a semiconductor of a first type; forming an active layer on the first semiconductor layer; forming a second semiconductor layer on the active layer, the second semiconductor layer including a semiconductor of a second type different from the first type; performing an etching process of removing at least a portion of each of the first semiconductor layer, the active layer, and the second semiconductor layer in a direction toward the first semiconductor layer from the second semiconductor layer; and forming a first insulating layer to surround an outer surface of the active layer. The first insulating layer is formed by a wet process.