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：US20220262846A1

公开(公告)日：2022-08-18

申请号：US17454016

申请日：2021-11-08

Applicant: Samsung Display Co., Ltd.

Inventor： Won Ho LEE ,  Jong Hyuk KANG ,  Buem Joon KIM ,  Hyun Deok IM ,  Eun A CHO

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

Abstract: A display device in accordance with some embodiments may include a base layer, a first bank pattern and a second bank pattern on the base layer, and spaced apart from each other in a first direction, a first electrode overlapping the first bank pattern, a second electrode overlapping the second bank pattern, and a light emitting element aligned between the first electrode and the second electrode, wherein a distance between an end of the first electrode and an end of the first bank pattern differs from a distance between an end of the second electrode and an end of the second bank pattern in the first direction.

公开(公告)号：US20220223562A1

公开(公告)日：2022-07-14

申请号：US17545439

申请日：2021-12-08

Applicant: Samsung Display Co., LTD.

Inventor： Jung Hyun AHN ,  Buem Joon KIM ,  Won Ho LEE ,  Hyun Deok IM

IPC: H01L23/00 ,  H01L25/16 ,  B41M5/00

Abstract: An ink leveling device includes a stage on which a target substrate is disposed, base frames disposed at sides of the stage, moving members coupled to the base frames and movable upward and downward, and at least one plate coupled to the moving members and disposed to press the target substrate. Light-emitting element ink is disposed on the target substrate.

公开(公告)号：US20210187932A1

公开(公告)日：2021-06-24

申请号：US17127053

申请日：2020-12-18

Applicant: Samsung Display Co., LTD.

Inventor： Dae Ho YANG ,  Sun Kwan KIM ,  Jin Woo PARK ,  Sung Hoon LEE ,  Won Ho LEE ,  Il Soo JANG

IPC: B32B43/00 ,  B32B37/00 ,  B32B38/18

Abstract: A peeling apparatus includes a water tank, a stage disposed in the water tank, a peeling member disposed above the stage, and a discharge preventing block disposed in the water tank and disposed outside the stage, wherein a height of the discharge preventing block is greater than a height of the stage.

公开(公告)号：US20230386878A1

公开(公告)日：2023-11-30

申请号：US18448869

申请日：2023-08-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won Ho LEE ,  Buem Joon KIM ,  Jong Hyuk KANG ,  Hyun Deok IM ,  Chung Sic CHOI

IPC: H01L21/68 ,  H01L25/075 ,  H01L21/67 ,  H01L23/00

CPC classification number: H01L21/68 ,  H01L25/0753 ,  H01L21/6715 ,  H01L24/75 ,  H01L2224/75283 ,  H01L2924/12041 ,  H01L2224/75701 ,  H01L2224/75251 ,  H01L2224/75501 ,  H01L2224/759 ,  H01L2224/75252 ,  H01L2224/75655 ,  B41J2/095

Abstract: An apparatus for aligning dipoles is provided. The apparatus includes: an electric field forming unit including a stage and a probe unit, the probe unit being configured to form an electric field on the stage; an inkjet printing device including an inkjet head, the inkjet head being configured to spray ink including a solvent and dipoles dispersed in the solvent onto the stage; a light irradiation device configured to irradiate light onto the stage; and a temperature control device including a temperature control unit, the temperature control unit being configured to control a temperature of the solvent sprayed on the stage.

公开(公告)号：US20230231074A1

公开(公告)日：2023-07-20

申请号：US17890981

申请日：2022-08-18

Applicant: Samsung Display Co., LTD.

Inventor： Won Ho LEE ,  Jong Hyuk KANG ,  Buem Joon KIM ,  Soo Jo OCK ,  Hyun Deok IM

IPC: H01L33/10 ,  H01L33/38 ,  H01L33/46 ,  H01L33/00

CPC classification number: H01L33/10 ,  H01L33/382 ,  H01L33/46 ,  H01L33/005 ,  H01L2933/0016 ,  H01L2933/0025

Abstract: A display device may include including a first insulating reflective layer including a distributed Bragg reflector above a substrate, a first electrode and a second electrode above the first insulating reflective layer, a second insulating reflective layer including a distributed Bragg reflector above the first electrode and the second electrode, and a light emitting element above the second insulating reflective layer.

公开(公告)号：US20220254753A1

公开(公告)日：2022-08-11

申请号：US17630595

申请日：2020-06-03

Applicant: Samsung Display Co., LTD.

Inventor： Won Ho LEE ,  Hyun Deok IM ,  Jong Hyuk KANG ,  Jin Oh KWAG ,  Keun Kyu SONG ,  Sung Chan JO ,  Hyun Min CHO

IPC: H01L23/00 ,  H01L21/68 ,  H01L25/16 ,  B41M3/00

Abstract: A dipole alignment device includes an electric field forming part including a stage, and a probe part which form an electric field on the stage; an inkjet printing apparatus including at least one inkjet head which sprays ink including dipoles and a solvent with the dipoles dispersed therein onto the stage; a transportation part comprising a first moving part which moves the electric field forming part in at least one direction; and a light irradiation apparatus including a light irradiation part which applies light to the ink sprayed onto the stage.

公开(公告)号：US20220158052A1

公开(公告)日：2022-05-19

申请号：US17432610

申请日：2019-08-23

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: H01L33/62 ,  H01L33/38 ,  H01L27/15 ,  H01L33/00

Abstract: A display device may include a substrate, pixels disposed on the substrate, each of the pixels including a first electrode, a second electrode, and a plurality of light emitting elements electrically connected between the first and the second electrodes, and a first oscillator disposed on the substrate and electrically connected to a first electrode of a first pixel of the pixels, the first oscillator including at least one transistor and at least one capacitor.

公开(公告)号：US20220093818A1

公开(公告)日：2022-03-24

申请号：US17360596

申请日：2021-06-28

Applicant: Samsung Display Co., LTD.

Inventor： Jun Bo SIM ,  Duk Ki KIM ,  Hyo Jin KO ,  Chang Hee LEE ,  Jae Kook HA ,  Na Mi HONG ,  Jong Hyuk KANG ,  Won Ho LEE ,  Hyun Deok IM ,  Eun A CHO

IPC: H01L33/00 ,  H01L27/15 ,  H01L33/32 ,  H01L33/24 ,  H01L33/06 ,  C09D11/50 ,  C09D11/52 ,  C09D11/037 ,  C09D11/033

Abstract: An ink for manufacturing a display device includes a solvent; and light emitting elements disposed in the solvent, wherein the light emitting elements include a first semiconductor layer including a first type of semiconductor and a second semiconductor layer including a second type of semiconductor, and an electrical conductivity of the ink is about 1.5 μS/m or less. Also provided are a method of manufacturing a display device using the ink and a display device manufactured by the method.

公开(公告)号：US20220085260A1

公开(公告)日：2022-03-17

申请号：US17322346

申请日：2021-05-17

Applicant: Samsung Display Co., LTD.

Inventor： Won Ho LEE ,  Buem Joon KIM ,  Jong Hyuk KANG ,  Hyun Deok IM ,  Eun A CHO

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

Abstract: A display device includes a plurality of pixels including alignment electrodes and light emitting elements disposed between the alignment electrodes, and the alignment electrodes including outer alignment electrodes and center alignment electrodes disposed between the outer alignment electrodes. A distance between the center alignment electrodes is different from a distance between the center alignment electrodes and the outer alignment electrodes.