公开(公告)号：US20250126952A1

公开(公告)日：2025-04-17

申请号：US19002683

申请日：2024-12-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seung Geun LEE ,  Byung Ju LEE ,  Hoo Keun PARK ,  Chul Jong YOO ,  Dong Eon LEE

IPC: H10H29/14 ,  H10H20/831 ,  H10H20/857

Abstract: A display device includes a first subpixel and a second subpixel, wherein the first subpixel includes a first light source unit including a plurality of first light-emitting elements configured to emit first light having a center wavelength of a first wavelength, the second subpixel includes a second light source unit including a plurality of second light-emitting elements configured to emit second light having a center wavelength of a second wavelength, the first light source unit includes first to nth light-emitting groups that are connected in series, each of the groups including the plurality of first light-emitting elements, the second light source unit includes first to mth light-emitting groups that are connected in series and each of the groups includes the plurality of second light-emitting elements, where n and m are natural numbers, and the second wavelength is different from the first wavelength.

公开(公告)号：US20250081673A1

公开(公告)日：2025-03-06

申请号：US18819017

申请日：2024-08-29

Applicant: Samsung Display Co., LTD.

Inventor： So Young LEE ,  Bong Chun PARK ,  Kwan Jae LEE ,  Dong Eon LEE ,  Seung A LEE ,  Jong Jin LEE

IPC: H01L33/14 ,  H01L25/16 ,  H01L33/62

Abstract: A display device includes a first electrode and a second electrode spaced apart from each other, and light emitting elements disposed between the first electrode and the second electrode. Each of the light emitting elements include a first semiconductor layer, a second semiconductor layer disposed on the first semiconductor layer, and an active layer disposed between the first semiconductor layer and the second semiconductor layer. Each of the light emitting elements emits light with a wavelength in a range of about 464 nm to about 468 nm at a current density in a range of about 0.5 A/cm2 to about 100 A/cm2, and has a maximum external quantum efficiency greater than or equal to about 15%.

公开(公告)号：US20240284706A1

公开(公告)日：2024-08-22

申请号：US18545905

申请日：2023-12-19

Applicant: Samsung Display Co., LTD.

Inventor： Bong Chun PARK ,  Kwan Jae LEE ,  Dong Eon LEE ,  So Young LEE ,  Seung A LEE ,  Jong Jin LEE

IPC: H10K59/121 ,  C09K11/62 ,  H10K59/12 ,  H10K59/122 ,  H10K59/126 ,  H10K59/131 ,  H10K85/30

CPC classification number: H10K59/1213 ,  C09K11/62 ,  H10K59/1201 ,  H10K59/122 ,  H10K59/126 ,  H10K59/131 ,  H10K85/326

Abstract: A light emitting element includes: a first semiconductor layer of a first type; a first auxiliary layer on the first semiconductor layer and having a first indium composition ratio; a second auxiliary layer on the first auxiliary layer and having a second indium composition ratio; an active layer including barrier layers and well layers that are alternately arranged on the second auxiliary layer and having a third indium composition ratio; and a second semiconductor layer on the active layer and of a second type different from the first type. The second indium composition ratio is greater than the first indium composition ratio and is less than the third indium composition ratio.

公开(公告)号：US20230062301A1

公开(公告)日：2023-03-02

申请号：US17704659

申请日：2022-03-25

Applicant: Samsung Display Co., LTD.

Inventor： Hyung Seok KIM ,  Si Sung KIM ,  Jong Jin LEE ,  Dong Eon LEE

IPC: H01L33/44 ,  H01L25/16 ,  H01L33/38 ,  H01L33/00

Abstract: A light emitting element includes a first semiconductor layer; an emission layer disposed on the first semiconductor layer; a second semiconductor layer disposed on the emission layer; an electrode layer disposed on the second semiconductor layer; and an insulating film surrounding side surfaces of the first semiconductor layer, the emission layer, and the second semiconductor layer and surrounding a portion of the electrode layer at an end portion of the light emitting element on which the electrode layer is disposed. The electrode layer includes a first surface adjacent to the second semiconductor layer; a second surface facing the first surface and having a width less than a width of the first surface; and a side surface that connects the first surface and the second surface and has a slope in a range of about 75° to about 90° with respect to the first surface of the electrode layer.

公开(公告)号：US20230006095A1

公开(公告)日：2023-01-05

申请号：US17757218

申请日：2020-12-07

Applicant: Samsung Display Co., LTD.

Inventor： Hoo Keun PARK ,  Moon Jung AN ,  Dong Eon LEE ,  Chul Jong YOO ,  Hye Lim KANG ,  Dong Gyun KIM

IPC: H01L33/20 ,  H01L25/16 ,  H01L33/62 ,  H01L23/00

Abstract: A light-emitting element including: a first semiconductor layer doped with a first type of dopant; a second semiconductor layer doped with a second type of dopant that is different from the first type of dopant; and an active layer between the first semiconductor layer and the second semiconductor layer, wherein a length of the light-emitting element measured in a first direction, which may be a direction in which the first semiconductor layer, the active layer, and the second semiconductor layer may be arranged, may be shorter than the width measured in a second direction that is perpendicular to the first direction.

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：US20220367756A1

公开(公告)日：2022-11-17

申请号：US17638169

申请日：2020-02-27

Applicant: Samsung Display Co., LTD.

Inventor： Dong Eon LEE ,  Hoo Keun PARK ,  Moon Jung AN ,  Chul Jong YOO ,  Hye Lim KANG ,  Dong Gyun KIM

IPC: H01L33/38 ,  H01L33/00 ,  H01L33/44 ,  H01L33/62

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; a first outer film around an outer surface of at least the active layer and extending in the first direction; and a second outer film around an outer surface of a portion of the first semiconductor layer on which the first outer film is not present.

公开(公告)号：US20220238756A1

公开(公告)日：2022-07-28

申请号：US17476927

申请日：2021-09-16

Applicant: Samsung Display Co., LTD.

Inventor： Hye Lim KANG ,  Moon Jung AN ,  Je Won YOO ,  Dong Eon LEE

IPC: H01L33/10 ,  H01L27/15 ,  H01L33/38

Abstract: A light-emitting element includes a light-emitting element core extending in a direction and including a first semiconductor layer, a second semiconductor layer disposed on the first semiconductor layer, and a device active layer disposed between the first semiconductor layer and the second semiconductor layer, a device insulating film surrounding a lateral surface of the light-emitting element core, and a reflective film disposed on an outer lateral surface of the device insulating film and surrounding at least a lateral surface of the device active layer.

公开(公告)号：US20180085973A1

公开(公告)日：2018-03-29

申请号：US15671061

申请日：2017-08-07

Applicant: Samsung Display Co., Ltd.

Inventor： Han Su KIM ,  Dong Eon LEE ,  Se Hee HAN

IPC: B29C33/42 ,  G02B5/30 ,  B29C33/56

CPC classification number: B29C33/42 ,  B29C33/56 ,  G02B5/3058

Abstract: A master mold for manufacturing a wire grid polarizer includes a mold substrate and a mold part disposed on the mold substrate, in which the mold part includes a plurality of embossed portions extending in a first direction substantially in parallel with one another, a plurality of debossed portions, at least some of which are disposed between adjacent embossed portions, extending in the first direction and separating adjacent embossed portions, and an embossed bridge portion arranged in a second direction intersecting the first direction and connecting the plurality of embossed portions separated by the debossed portions. A wire grid polarizer and a method of manufacturing a wire grid polarizer are also disclosed.