公开(公告)号：US10371875B2

公开(公告)日：2019-08-06

申请号：US14717431

申请日：2015-05-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Uk Kim ,  Min Ki Nam ,  Hae Il Park ,  Jun Han Lee

IPC: G02B1/00 ,  G02B5/02 ,  B82Y20/00 ,  G02F1/1335

Abstract: A display device may include a substrate and a plurality of color conversion units on the substrate. Each of the plurality of color conversion units may include a photonic crystal layer having at least two layers having different refractive indices alternately stacked, and a wavelength shifter dispersed in at least one of the at least two layers.

公开(公告)号：US12191417B2

公开(公告)日：2025-01-07

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 ,  H01L27/15 ,  H01L33/00 ,  H01L33/38

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：US12183857B2

公开(公告)日：2024-12-31

申请号：US17263871

申请日：2019-01-30

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Uk Kim ,  Je Won Yoo ,  Hyun Min Cho ,  Jung Hong Min

IPC: H01L33/50 ,  H01L25/16 ,  G09G3/32 ,  H01L33/20 ,  H01L33/62

Abstract: A light emitting device may include: a substrate; a light emitting element located on the substrate and configured to emit light; a first electrode and a second electrode spaced from each other with the light emitting element interposed therebetween; a color conversion layer located on the substrate and configured to convert light emitted from the light emitting element into light having a specific color; a first contact electrode configured to electrically couple the first electrode with a first end of the light emitting element; and a second contact electrode configured to electrically couple the second electrode with a second end of the light emitting element. In a plan view, the color conversion layer may be spaced from the light emitting element and overlaps with at least one of the first and the second contact electrodes.

公开(公告)号：US12161038B2

公开(公告)日：2024-12-03

申请号：US18120077

申请日：2023-03-10

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Ho Kim ,  Dong Uk Kim ,  Hoon Gi Lee

IPC: H10K59/60 ,  H10K59/122 ,  H10K59/80

Abstract: A display device includes a substrate, a first planarization layer disposed on a surface of the substrate, a second planarization layer disposed on a surface of the first planarization layer, a light-emitting element including a pixel electrode disposed on the surface of the second planarization layer, an emissive layer disposed on a surface of the pixel electrode, and a common electrode disposed on a surface of the emissive layer, a connection electrode disposed on the surface of the first planarization layer and electrically connecting the surface of the first planarization layer with an opposite surface of the first planarization layer through a first contact hole, and a light-absorbing layer disposed on the surface of the first planarization layer and covered by the second planarization layer.

公开(公告)号：US12132141B2

公开(公告)日：2024-10-29

申请号：US17624065

申请日：2020-06-03

Applicant: Samsung Display Co., LTD.

Inventor： Dong Uk Kim ,  Se Young Kim ,  Hyung Rae Cha

IPC: H01L33/00 ,  H01L33/24 ,  H01L33/38

CPC classification number: H01L33/0075 ,  H01L33/24 ,  H01L33/38

Abstract: A light emitting element includes a semiconductor core having at least a partial region extending in a direction and including a first end, a second end, and a main body part between the first end and the second end; a first electrode layer surrounding the second end of the semiconductor core; a second electrode layer surrounding at least the first end of the semiconductor core and spaced apart from the first electrode layer; and an insulating layer surrounding the semiconductor core, the first electrode layer and the second electrode layer. The second end of the semiconductor core has a diameter smaller than a diameter of the main body part.

公开(公告)号：US11935986B2

公开(公告)日：2024-03-19

申请号：US17298445

申请日：2019-05-30

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Uk Kim ,  Jin Oh Kwag ,  Keun Kyu Song ,  Sung-Chan Jo ,  Hyun Min Cho

IPC: H01L33/38 ,  H01L25/075 ,  H01L33/00 ,  H01L33/24 ,  H01L33/62

CPC classification number: H01L33/382 ,  H01L25/0753 ,  H01L33/005 ,  H01L33/24 ,  H01L33/62 ,  H01L2933/0016 ,  H01L2933/0066

Abstract: A display device may include: a substrate including a display area and a non-display area; and pixels in the display area, and each including sub-pixels. Each sub-pixel may include a pixel circuit layer, and a display element layer including at least one light emitting element. The display element layer may include: a first electrode on the pixel circuit layer; a second electrode on the first electrode and electrically insulated from the first electrode; the light emitting element including a first end portion coupled to the first electrode and a second end portion coupled to the second electrode, and between the first electrode and the second electrode; an intermediate layer enclosing at least one area of the light emitting element, and on the first electrode; a connection line electrically connected to the second electrode. The second electrode may be on the intermediate layer.

公开(公告)号：US11810905B2

公开(公告)日：2023-11-07

申请号：US17250633

申请日：2019-01-03

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Min Cho ,  Dae Hyun Kim ,  Dong Uk Kim ,  Jung Hong Min ,  Seung A Lee ,  Hyung Rae Cha

IPC: H01L25/075 ,  H01L27/12 ,  H01L33/00 ,  H01L33/22 ,  H01L33/62

CPC classification number: H01L25/0753 ,  H01L27/1214 ,  H01L33/0093 ,  H01L33/22 ,  H01L33/62 ,  H01L2933/0066

Abstract: Provided are a light emitting device, a method for manufacturing same, and a display device including the light emitting device. The method for manufacturing the light emitting device comprises the steps of: preparing a lower substrate including a substrate and a buffer semiconductor layer formed on the substrate, forming an element rod by forming a separating layer disposed on the lower substrate, forming a first conductivity type semiconductor layer, an active material layer, and a second conductivity type semiconductor layer on the separating layer, and etching the first conductivity type semiconductor layer, the active material layer, the second conductivity type semiconductor layer, and the separating layer in a direction perpendicular to the lower substrate, forming a first insulating layer surrounding an outer circumferential surface of the element rod, forming a second insulating layer surrounding an outer circumferential surface of the first insulating layer and separating the element rod from the lower substrate to form a light emitting element.