公开(公告)号：US20230155064A1

公开(公告)日：2023-05-18

申请号：US17896462

申请日：2022-08-26

Applicant: Samsung Display Co., LTD.

Inventor： Jeong Kook WANG ,  Ki Nyeng KANG ,  In Pyo KIM ,  Jae Hee KIM ,  Hong Joon MOON ,  Jong Hwan CHA

IPC: H01L33/38 ,  H01L33/62 ,  H01L33/42 ,  H01L27/15

CPC classification number: H01L33/382 ,  H01L27/156 ,  H01L33/42 ,  H01L33/62

Abstract: A display device includes light-emitting elements disposed on first and second electrodes, and having first end portions disposed on the first electrode, and second end portions disposed on the second electrode, a first connecting electrode extending in a first direction and disposed on the first electrode, the first connecting electrode being in contact with the first end portions of the light-emitting elements, a second connecting electrode extending in the first direction and disposed on the second electrode, the second connecting electrode being in contact with the second end portions of the light-emitting elements, and a connecting electrode pattern disposed on the first electrode, the connecting electrode pattern overlapping the first connecting electrode. The second connecting electrode and the connecting electrode pattern include a same material, and a thickness of the first connecting electrode is less than a thickness of the second connecting electrode and the connecting electrode pattern.

公开(公告)号：US20230282681A1

公开(公告)日：2023-09-07

申请号：US18109961

申请日：2023-02-15

Applicant: Samsung Display Co., LTD.

Inventor： Jae Hee KIM ,  Ki Nyeng KANG ,  In Pyo KIM ,  Jeong Kook WANG ,  Hyo Jeong LEE ,  Jong Hwan CHA

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

CPC classification number: H01L27/156 ,  H01L33/24 ,  H01L33/44 ,  H01L33/005

Abstract: A display device includes electrodes disposed in a display area and spaced apart from each other, light emitting elements disposed between the electrodes, conductive lines disposed in a non-display area and electrically connected to the electrodes, and dummy pixels disposed on the conductive lines. The dummy pixels each may include dummy partition walls spaced apart from each other, and dummy electrodes disposed on the partition walls and spaced apart from each other.

公开(公告)号：US20230275189A1

公开(公告)日：2023-08-31

申请号：US18096166

申请日：2023-01-12

Applicant: Samsung Display Co., LTD.

Inventor： Jeong Kook WANG ,  Ki Nyeng KANG ,  In Pyo KIM ,  Jae Hee KIM ,  Eun Je JANG

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

CPC classification number: H01L33/382 ,  H01L33/62 ,  H01L25/0753

Abstract: A display device comprises first and second electrodes disposed on a substrate, extended parallel to each other, and spaced apart from each other, light-emitting elements disposed on the first electrode and the second electrode, a first insulating layer covering at least a portion of each of the light-emitting elements, a first connection electrode disposed on the light-emitting elements and electrically contacting a first end of each of the light-emitting elements, and a second connection electrode disposed on the light-emitting elements and the first insulating layer and electrically contacting a second end of each of the light-emitting elements, wherein the first connection electrode and the second connection electrode overlap each other in a thickness direction.

公开(公告)号：US20230187427A1

公开(公告)日：2023-06-15

申请号：US17959428

申请日：2022-10-04

Applicant: Samsung Display Co., LTD.

Inventor： In Pyo KIM ,  Ki Nyeng KANG ,  Jae Hee KIM ,  Hong Joon MOON ,  Jeong Kook WANG ,  Jong Hwan CHA

IPC: H01L25/16 ,  G09G3/3233 ,  H01L33/00

CPC classification number: H01L25/167 ,  G09G3/3233 ,  H01L33/005 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2300/0426

Abstract: A display device includes electrodes spaced apart from each other, light emitting elements disposed between the electrodes, and connection electrodes electrically connected to the light emitting elements. The connection electrodes include first areas in electrical contact with the light emitting elements and second areas extending upwardly from the light emitting elements. A space is formed between the light emitting elements and the second areas of the connection electrodes.

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.

公开(公告)号：US20230253413A1

公开(公告)日：2023-08-10

申请号：US18095662

申请日：2023-01-11

Applicant: Samsung Display Co., LTD.

Inventor： Veidhes BASRUR ,  Ki Nyeng KANG ,  In Pyo KIM ,  Ock Soo SON ,  Jong Hwan CHA

IPC: H01L27/12 ,  H01L25/16

CPC classification number: H01L27/124 ,  H01L25/167 ,  H01L27/1296 ,  H01L27/1248

Abstract: Provided herein is a display device and a method of fabricating the display device. The display device includes a substrate including a display area and a non-display area, a via layer disposed in the display area, electrodes disposed on the via layer and spaced apart from each other, light emitting elements disposed between the electrodes, dummy pattern layers disposed in the non-display area, and dummy electrodes disposed on the dummy pattern layers. The via layer and the dummy pattern layers may be disposed on a same layer. The electrodes and the dummy electrodes may be disposed on a same layer.

公开(公告)号：US20230215983A1

公开(公告)日：2023-07-06

申请号：US18093959

申请日：2023-01-06

Applicant: Samsung Display Co., LTD.

Inventor： Mi Hyang SHEEN ,  Yun Hyuk KO ,  Dong Uk KIM ,  Na Ri AHN ,  Chang Hee LEE ,  Do Hyung KIM ,  Ran KIM ,  In Pyo KIM ,  Ki Young YEON ,  Je Won YOO ,  Joo Hee LEE ,  Sang Ho JEON ,  Jung Woon JUNG ,  Chan Woo JOO ,  Jin Young CHOI ,  Na Mi HONG ,  Jong Il KIM ,  Jin Ho BYUN ,  Sang Ho OH ,  Jae Kwang LEE ,  Yong Seok CHOI ,  Jong Hoon HA

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

CPC classification number: H01L33/382 ,  H01L25/0753 ,  H01L33/20 ,  H01L33/005 ,  H01L33/62 ,  H01L2933/0016

Abstract: A method for fabricating a light emitting element includes preparing a substrate, and forming a first semiconductor material layer, a light emitting material layer, a second semiconductor material layer and an electrode material layer on the substrate, forming semiconductor rods spaced apart from each other by etching the first semiconductor material layer, the light emitting material layer, the second semiconductor material layer and the electrode material layer in a direction perpendicular to an upper surface of the substrate, forming an insulating layer surrounding sides of the semiconductor rods through a sol-gel process by immersing the substrate, including the semiconductor rods, in a solution containing a precursor material, and forming light emitting elements by separating the semiconductor rods, including the insulating layer, from the substrate, and the light emitting elements have an external quantum efficiency of 20.2±0.6%.

公开(公告)号：US20230187472A1

公开(公告)日：2023-06-15

申请号：US18076241

申请日：2022-12-06

Applicant: Samsung Display Co., LTD.

Inventor： Jae Hee KIM ,  Ki Nyeng KANG ,  In Pyo KIM ,  Jeong Kook WANG ,  Hyo Jeong LEE ,  Jong Hwan CHA

IPC: H01L27/15 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44 ,  H01L33/50

CPC classification number: H01L27/156 ,  H01L33/24 ,  H01L33/38 ,  H01L33/44 ,  H01L33/50 ,  H01L2933/0016 ,  H01L2933/0025

Abstract: A display device may include a first electrode and a second electrode spaced from each other on a substrate. A light emitting element may be on the first electrode and the second electrode. A first insulating pattern may be on the light emitting element. A first contact electrode may be on a first side of the first insulating pattern and contacting a first end of the light emitting element. A second insulating pattern may be on the first insulating pattern and partially covering the first contact electrode. A third insulating layer may be on the second insulating pattern. A second contact electrode may be on a second side of the first insulating pattern, and contact a second end of the light emitting element that is exposed from the first insulating pattern, the second insulating pattern, and the third insulating layer.

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.