公开(公告)号：US20230275197A1

公开(公告)日：2023-08-31

申请号：US18018255

申请日：2021-05-04

Applicant: Samsung Display Co., LTD.

Inventor： Dae Hyun KIM ,  Keun Kyu SONG ,  Sung Chan JO ,  Hyun Min CHO ,  Tae Jin KONG ,  Ock Soo SON ,  Chang Il TAE

IPC: H01L33/50 ,  H01L25/16 ,  H01L33/60

CPC classification number: H01L33/505 ,  H01L25/167 ,  H01L33/60

Abstract: A display device including: a first substrate on which a plurality of sub-pixels are located; a plurality of color filter layers on the first substrate; a bank layer including a first bank at a boundary between the plurality of sub-pixels and located on the color filter layers; a color control structure including a plurality of light transmitting layers and wavelength conversion layers in a region surrounded by the first bank on the color filter layer; a light emitting element layer between the color filter layer and the color control structure; a reflective layer on the color control structure; and a first electrode and a second electrode on the color filter layer and at least partially located at the same plane, wherein the light emitting element layer includes a plurality of light emitting elements, each of the light emitting elements having respective ends on the first and second electrodes.

公开(公告)号：US20230123503A1

公开(公告)日：2023-04-20

申请号：US17905495

申请日：2020-06-05

Applicant: Samsung Display Co., LTD.

Inventor： Won Sik OH ,  Dong Uk KIM ,  Hyun Min CHO

IPC: H01L33/62 ,  H01L25/16 ,  H01L33/20

Abstract: A display includes: a first electrode including a first electrode line and a second electrode line; a light-emitting device between the first electrode line and the second electrode line; a first contact electrode including a first pattern overlapping the first electrode line and one end of the light-emitting device and a second pattern overlapping the second electrode line and the other end of the light-emitting device; a second electrode on the light-emitting device and overlapping the first electrode and the light-emitting device; and a second contact electrode between the light-emitting device and the second electrode, wherein a light-emitting device includes a plurality of semiconductor layers and an insulating film partially surrounding the external surfaces of the semiconductor layers, a main body unit, and a light-emitting unit on the main body unit and having a shorter length than the main body unit.

公开(公告)号：US20230102417A1

公开(公告)日：2023-03-30

申请号：US17792943

申请日：2021-01-14

Applicant: Samsung Display Co., LTD.

Inventor： Jae Hoon JUNG ,  Buem Joon KIM ,  Hee Yeon YOO ,  Sung Chan JO ,  Eun A CHO ,  Hye Jung HONG ,  Jong Hyuk KANG ,  Keun Kyu SONG ,  Hyun Deok IM ,  Hyun Min CHO

IPC: C09D11/033 ,  C09D11/36 ,  C09D11/50 ,  H01L51/56 ,  C09K11/06

Abstract: A light emitting element ink includes a light emitting element solvent, and a light emitting element dispersed in the light-emitting diode solvent. The light emitting element includes semiconductor layers and an insulating film surrounding the outer surface of the semiconductor layers, wherein the light-emitting diode solvent is an organic solvent having a pKa value in a range of about 7 to about 15.

公开(公告)号：US20220393086A1

公开(公告)日：2022-12-08

申请号：US17774978

申请日：2020-10-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Chang Il TAE ,  Hyun Min CHO ,  Dae Hyun KIM

IPC: H01L33/62 ,  H01L25/16 ,  H01L33/60 ,  H01L23/00

Abstract: A display device may include a display area including pixel areas each including an emission area, a non-display area, and a pixel disposed in each of the pixel areas. The pixel may include a first electrode, a second electrode spaced apart from the first electrode and surrounding a periphery of the first electrode, a third electrode spaced apart from the second electrode and surrounding a periphery of the second electrode, a fourth electrode spaced apart from the third electrode and surrounding a periphery of the third electrode, light emitting elements disposed between the first to fourth electrodes, and first and second conductive lines disposed under the first to fourth electrodes with an insulating layer disposed therebetween. The first conductive line may be electrically connected to the first electrode, and the second conductive line may be electrically connected to the fourth electrode.

公开(公告)号：US20220384402A1

公开(公告)日：2022-12-01

申请号：US17767240

申请日：2020-09-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yo Han LEE ,  Won Sik OH ,  Hyun Min CHO

IPC: H01L25/16 ,  H01L33/62 ,  H01L23/00

Abstract: A pixel includes first and second sub-pixel areas adjacent to each other in a first direction; first and second electrodes disposed in each of the first and the second sub-pixel areas, and spaced apart from each other; light emitting elements disposed between the first and the second electrodes in each of the first and the second sub-pixel areas; a first driving transistor disposed in the first sub-pixel area, and electrically connected to the first electrode; and a second driving transistor disposed in the second sub-pixel area, and electrically connected to the first electrode. The first electrode of the first sub-pixel area and the first electrode of the second sub-pixel area are electrically disconnected from each other, and the second electrode of the first sub-pixel area and the second electrode of the second sub-pixel area are electrically connected to each other.

公开(公告)号：US20220376144A1

公开(公告)日：2022-11-24

申请号：US17636218

申请日：2020-02-27

Applicant: Samsung Display Co., LTD.

Inventor： Moon Jung AN ,  Sung Chan JO ,  Hoo Keun PARK ,  Chul Jong YOO ,  Hye Lim KANG ,  Dong Gyun KIM ,  Dong Eon LEE ,  Hyun Min CHO

IPC: H01L33/44 ,  H01L25/16 ,  H01L23/00 ,  H01L33/42

Abstract: A light emitting element includes: a first semiconductor layer doped with a first polarity; a second semiconductor layer doped with a second polarity different from the first polarity; an active layer between the first semiconductor layer and the second semiconductor layer in a first direction; and an insulating film surrounding an outer surface of at least the active layer and extending in the first direction. A thickness of a first portion of the insulating film surrounding the active layer is in a range of 10% to 16% of a diameter of the active layer.

公开(公告)号：US20220366840A1

公开(公告)日：2022-11-17

申请号：US17878515

申请日：2022-08-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin Oh KWAG ,  Won Sik OH ,  Keun Kyu SONG ,  Sung-Chan JO ,  Hyun Min CHO

IPC: G09G3/32

Abstract: A pixel includes first and second sub-emission areas enclosed by a bank; a first light source unit disposed in the first sub-emission area, and including at least one first light emitting element connected between at least one first split electrode and a second power supply; a second light source unit disposed in the second sub-emission area, and including at least one second light emitting element connected between at least one second split electrode and the second power supply; a first driving circuit connected between a first power supply and the at least one first split electrode, and supplying a first driving current to the first light source unit in response to a first data signal; and a second driving circuit connected between the first power supply and the second split electrode, and supplying a second driving current to the second light source unit in response to a second data signal.

公开(公告)号：US20220278253A1

公开(公告)日：2022-09-01

申请号：US17608851

申请日：2020-03-04

Applicant: SAMSUNG DISPLAY CO., LTD.

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

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

Abstract: A display device includes a substrate including a display area and a non-display area; and at least one pixel provided in the display area, and including a pixel circuit layer. The display element layer includes at least one transistor, and a display element layer including at least one light emitting element emitting light, and a first electrode and a second electrode spaced apart from each other, disposed on the substrate, and each extending in a first direction, and the at least one light emitting element is electrically connected to each of the first and the second electrodes. The first electrode has at least two widths in an extension direction of the first electrode. The second electrode has at least two widths in an extension direction of the second electrode.

公开(公告)号：US20220262984A1

公开(公告)日：2022-08-18

申请号：US17610062

申请日：2020-03-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hae Yun CHOI ,  Jong Hyuk KANG ,  Hyun Deok IM ,  Jae Hoon JUNG ,  Han Su KIM ,  Eun A YANG ,  Hyun Min CHO

IPC: H01L33/38 ,  H01L33/62 ,  H01L33/50 ,  H01L33/00 ,  H01L25/075

Abstract: A pixel includes a first bank pattern and a second bank pattern disposed on a base layer; a first electrode and a second electrode disposed on the first bank pattern and the second bank pattern, and spaced apart from each other; a light emitting element disposed between the first electrode and the second electrode, and including a first end electrically connected to the first electrode, and a second end electrically connected to the second electrode; and at least one insulating layer overlapping the light emitting element and at least one of the first electrode and the second electrode. The at least one insulating layer includes at least one of a first opening adjacent to the first end of the light emitting element and a second opening adjacent to the second end of the light emitting element.

公开(公告)号：US20220216373A1

公开(公告)日：2022-07-07

申请号：US17609882

申请日：2020-03-30

Applicant: Samsung Display Co., LTD.

Inventor： Je Won YOO ,  Tae Jin KONG ,  Hee Keun LEE ,  Hyun Min CHO

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

Abstract: Provided are a display device and a manufacturing method thereof. The display device comprises: a substrate; a first electrode and a second electrode disposed on the substrate to be spaced apart from each other; a first insulating layer disposed on the substrate so as to cover at least a portion of the first electrode and the second electrode; and at least one first light emitting element disposed between the first electrode and the second electrode, on the first insulating layer. The first insulating layer comprises: a first sub-insulating layer comprising a first portion including a hydrophilic material and a second portion which is a region of the first insulating layer except for the first portion and includes a hydrophobic material; and a second sub-insulating layer disposed below the first sub-insulating layer, and at least a portion of the at least one first light emitting element is disposed on the first portion.