公开(公告)号：US20220131045A1

公开(公告)日：2022-04-28

申请号：US17343392

申请日：2021-06-09

Applicant: Samsung Display Co., Ltd.

Inventor： Chang Hee LEE ,  Se Hun KIM

IPC: H01L33/38 ,  H01L27/15 ,  H01L33/60 ,  H01L33/42

Abstract: A display device includes a substrate, a first electrode on the substrate, a plurality of light emitting elements on the first electrode, and a second electrode on the plurality of light emitting elements. An area of a first surface of each of the plurality of light emitting elements in contact with the first electrode is different from an area of a second surface of each of the plurality of light emitting elements in contact with the second electrode. Each of the plurality of light emitting elements includes a metal layer in contact with the first electrode and including a fusible alloy or a eutectic alloy.

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.

公开(公告)号：US20240065095A1

公开(公告)日：2024-02-22

申请号：US18119986

申请日：2023-03-10

Applicant: Samsung Display Co., LTD.

Inventor： Sang Hee YU ,  Gyu Bong KIM ,  Hoi Lim KIM ,  Se Hun KIM ,  Ju Yon LEE

IPC: H10K85/60

CPC classification number: H10K85/60 ,  H10K50/16

Abstract: Embodiments provide a composition for an electron transporting layer and a method for manufacturing a display device including the same. The composition includes inorganic particles, peroxide, a hydrocarbon compound, and a solvent. A method for manufacturing a display device includes forming a first electrode on a substrate, forming a light emitting layer on the first electrode, forming an electron transporting layer on the light emitting layer, and forming a second electrode on the electron transporting layer, wherein the electron transporting layer is formed of a composition for an electron transporting layer including inorganic particles, peroxide, a hydrocarbon compound, and a solvent.

公开(公告)号：US20230006112A1

公开(公告)日：2023-01-05

申请号：US17702659

申请日：2022-03-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji Yoon KIM ,  Chang Hee LEE ,  Se Hun KIM ,  Young Mo KOO ,  Jae Kook HA

IPC: H01L33/50 ,  H01L25/16 ,  H01L27/32 ,  H01L33/60 ,  H01L51/52 ,  G02B5/20 ,  G02B5/00

Abstract: A color changing substrate comprises a substrate comprising emission areas and non-emission areas, a color filter layer on the substrate and comprising a light blocking member partitioning the emission areas and the non-emission areas, and a plurality of color filters in areas surrounded by the light blocking member, a bank overlapping the light blocking member, a wavelength control layer comprising wavelength conversion layers and a light transmitting layer in areas surrounded by the bank, a reflective layer overlapping the bank, a first metal oxide layer overlapping the reflective layer, and a self-assembled layer overlapping the first metal oxide layer.

公开(公告)号：US20220109083A1

公开(公告)日：2022-04-07

申请号：US17320925

申请日：2021-05-14

Applicant: Samsung Display Co., LTD.

Inventor： Chang Hee LEE ,  Dong Uk KIM ,  Se Hun KIM ,  Hyo Jin KO ,  Dong Hoon KWAK ,  Young Il KIM ,  Ji Yoon KIM

IPC: H01L33/20 ,  H01L33/38 ,  H01L27/15 ,  H01L33/00

Abstract: A light emitting element includes a first surface corresponding to an end of the light emitting element, a second surface corresponding to another end of the light emitting element, a first semiconductor layer adjacent to the first surface, the first semiconductor layer including a first type of semiconductor, a second semiconductor layer adjacent to the second surface, the second semiconductor layer including a second type of semiconductor different from the first type of semiconductor, and an active layer disposed between the first semiconductor layer and the second semiconductor layer. An area of the first surface is larger than an area of the second surface, and a distance between the first surface and the second surface is shorter than a length defined by the first surface.

公开(公告)号：US20190019958A1

公开(公告)日：2019-01-17

申请号：US15863768

申请日：2018-01-05

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hun KIM ,  Chang Woong CHU ,  Duk Ki KIM ,  Dong Woo SHIN ,  Jae Kook HA

IPC: H01L51/00 ,  G09G3/3208 ,  C07D251/12 ,  C07D239/24 ,  C07D209/82

Abstract: A composition for forming organic film, a display device utilizing the composition, and a method of manufacturing the display device are provided. The composition for forming an organic film includes a solvent; and a compound of Formula 1: Ar∛R)k.  Formula 1

公开(公告)号：US20240234640A1

公开(公告)日：2024-07-11

申请号：US18606347

申请日：2024-03-15

Applicant: Samsung Display Co., LTD.

Inventor： Se Hun KIM ,  Chang Hee LEE ,  Yun Hyuk KO ,  Duk Ki KIM ,  Jun Woo PARK ,  Soo Ho LEE ,  Jae Kook HA ,  Yun Ku JUNG

IPC: H01L33/44 ,  H01L25/16 ,  H01L33/00 ,  H01L33/20

CPC classification number: H01L33/44 ,  H01L25/167 ,  H01L33/0095 ,  H01L33/007 ,  H01L33/0093 ,  H01L33/20 ,  H01L2933/0025

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 different from the first polarity, a light-emitting layer disposed between the first and second semiconductor layers, a shell layer formed on side surfaces of the first semiconductor layer, the light-emitting layer, and the second semiconductor layer, the shell layer including a divalent metal element, and an insulating film covering an outer surface of the shell layer and surrounding the side surface of the light-emitting layer.

公开(公告)号：US20220223772A1

公开(公告)日：2022-07-14

申请号：US17445801

申请日：2021-08-24

Applicant: Samsung Display Co., Ltd.

Inventor： Chang Hee LEE ,  Young Il KIM ,  Hyo Jin KO ,  Dong Hoon KWAK ,  Dong Uk KIM ,  Se Hun KIM ,  Ji Yoon KIM

IPC: H01L33/62 ,  H01L25/075 ,  H01L27/12 ,  H01L33/00 ,  H01L33/24

Abstract: A light emitting diode includes: a first semiconductor layer; an active layer located on one surface of the first semiconductor layer; a second semiconductor layer located on one surface of the active layer; an electrode layer located on one surface of the second semiconductor layer; and a bonding electrode layer located on the other surface of the first semiconductor layer.

公开(公告)号：US20220165786A1

公开(公告)日：2022-05-26

申请号：US17454459

申请日：2021-11-10

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hun KIM ,  Chang Hee LEE ,  Jae Kook HA ,  In Pyo KIM ,  Jun Bo SIM ,  Hyo Jin KO ,  Chan Woo JOO ,  Na Mi HONG

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

Abstract: A method of manufacturing a light emitting element includes: forming a plurality of light emitting patterns on a stack substrate; forming a polysilazane layer on the plurality of light emitting patterns; forming a first insulating film by curing the polysilazane layer; and forming a second insulating film on the first insulating film. The forming of the first insulating film includes photocuring the polysilazane layer by irradiating ultraviolet rays onto the polysilazane layer. The forming of the plurality of light emitting patterns includes: forming a light emitting stack structure on the stack substrate; and etching the light emitting stack structure.