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公开(公告)号：US12237365B2
公开(公告)日：2025-02-25
申请号：US18456069
申请日：2023-08-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Junhee Choi , Kiho Kong , Nakhyun Kim , Dongho Kim , Junghun Park , Jinjoo Park , Eunsung Lee , Joohun Han
IPC: H01L27/15
Abstract: A micro light-emitting display apparatus and a method of manufacturing the same are disclosed The micro light-emitting display apparatus includes a first semiconductor layer, an isolation structure provided on the first semiconductor layer and configured to define a plurality of sub-pixels each configured to emit light, a first light-emitting unit including a first active layer provided in a first sub-pixel among the plurality of sub-pixels, and a second semiconductor layer provided on the first active layer, and a second light-emitting unit including a rod semiconductor layer provided in a second sub-pixel among the plurality of sub-pixels, a second active layer provided on the rod semiconductor layer, and a third semiconductor layer provided on the second active layer. The first active layer is configured to emit blue light and the second active layer is configured to emit green light.
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公开(公告)号：US12095005B2
公开(公告)日：2024-09-17
申请号：US18200399
申请日：2023-05-22
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Nakhyun Kim , Junhee Choi , Jinjoo Park , Joohun Han
CPC classification number: H01L33/24 , H01L25/0753 , H01L25/167 , H01L29/0676 , H01L33/32 , H01L33/44
Abstract: A nanorod semiconductor layer having a flat upper surface, a micro-LED including the nanorod semiconductor layer, a pixel plate including the micro-LED , a display device including the pixel plate, and an electronic device including the pixel plate are provided. The nanorod semiconductor layer includes: a main body; and an upper end formed from the main body, wherein the upper end includes: a first inclined surface; a second inclined surface facing the first inclined surface; and a flat upper surface between the first inclined surface and the second inclined surface, and a width of the upper end becomes narrower in an upward direction, and when a length of the upper end protruded from the main body (a thickness of the upper end) is L1, an inclination angle between a surface extending parallel to a surface selected from the first and second inclined surfaces and the flat upper surface is β, and a width of the main body is D, a width D1 of the flat upper surface satisfies Equation 1.
D1=D−(2×L1×tanβ)-
公开(公告)号：US11777056B2
公开(公告)日：2023-10-03
申请号：US17112346
申请日：2020-12-04
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Junhee Choi , Nakhyun Kim , Jinjoo Park , Joohun Han
CPC classification number: H01L33/24 , H01L27/156 , H01L33/0025 , H01L33/0062 , H01L33/06 , H01L33/145 , H01L33/30 , H01L33/40
Abstract: Provided is a nanorod light-emitting device including a first semiconductor layer doped with a first conductive type impurity, an emission layer disposed above the first semiconductor layer, a second semiconductor layer disposed above the emission layer and doped with a second conductive type impurity that is electrically opposite to the first conductive type impurity, a conductive layer disposed between at least one of a center portion of a lower surface of the emission layer and the first semiconductor layer and a center portion of an upper surface of the emission layer and the second semiconductor layer, and a current blocking layer surrounding a sidewall of the conductive layer.
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公开(公告)号：US11769788B2
公开(公告)日：2023-09-26
申请号：US17501996
申请日：2021-10-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jinjoo Park , Hoyoung Ahn , Junhee Choi , Sungjin Kang , Junghun Park
CPC classification number: H01L27/156 , H01L33/145 , H01L33/42 , H01L33/504
Abstract: A high-resolution display device is provided. The high-resolution display device includes a light-emitting layer including a first semiconductor layer, an active layer, and a second semiconductor layer, a plurality of transparent electrodes respectively formed on the second semiconductor layer in sub-pixel regions, a first electrode connected to the first semiconductor layer, a plurality of second electrodes connected to the plurality of transparent electrodes, a color-converting layer arranged over the light-emitting layer and configured to emit light of a predetermined color based on light generated by the light-emitting layer, which are sequentially stacked on a substrate including a plurality of sub-pixel regions. One or more ion injection regions corresponding to current injection regions corresponding to the plurality of the sub-pixel regions is formed in the second semiconductor layer.
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公开(公告)号：US11699775B2
公开(公告)日：2023-07-11
申请号：US17138071
申请日：2020-12-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Junhee Choi , Nakhyun Kim , Jinjoo Park , Joohun Han
IPC: H01L33/24 , H01L25/075 , H01L33/32 , H01L33/00
CPC classification number: H01L33/24 , H01L25/0753 , H01L33/32 , H01L33/0075
Abstract: A semiconductor light emitting diode (LED) and a method of manufacturing the same are provided. The LED includes a first semiconductor layer; a plurality of active elements spaced apart on the first semiconductor layer and each having a width less than a width of the first semiconductor layer; and a second semiconductor layer disposed on the plurality of active elements.
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Patent Agency Ranking
公开(公告)号：US11450650B2
公开(公告)日：2022-09-20
申请号：US16593635
申请日：2019-10-04
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hoyoung Ahn , Junhee Choi , Kyungwook Hwang , Jinjoo Park
Abstract: A display device includes a substrate, an emission layer provided on the substrate and a reflective layer provided on the emission layer. The emission layer has an emission region that emits light, the reflective layer has a first opening, the emission region overlaps the first opening in a direction perpendicular to an upper surface of the substrate and a first width of the emission region is smaller than a second width of the first opening.
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公开(公告)号：US20220140183A1
公开(公告)日：2022-05-05
申请号：US17197326
申请日：2021-03-10
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Joohun HAN , Junhee Choi , Nakhyun Kim , Dongho Kim , Jinjoo Park
Abstract: A nanorod light emitting device, a method of manufacturing the same, and a display apparatus including the nanorod light emitting device are provided. The nanorod light emitting device includes a first semiconductor layer doped with a first conductivity type, a light emitting layer disposed on the first semiconductor layer, and a second semiconductor layer disposed on the light emitting layer and doped with a second conductivity type that is electrically opposite to the first conductivity type, wherein a distance between a lower surface of the first semiconductor layer and an upper surface of the second semiconductor layer is in a range of about 2 μm to about 10 μm, wherein a difference between a diameter of the upper surface of the second semiconductor layer and the lower surface of the first semiconductor layer is 10% or less of a diameter of the upper surface of the second semiconductor layer.
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公开(公告)号：US12034032B2
公开(公告)日：2024-07-09
申请号：US18308895
申请日：2023-04-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Joohun Han , Junhee Choi , Kiho Kong , Jinjoo Park , Nakhyun Kim , Junghun Park
CPC classification number: H01L27/156 , H01L33/0093 , H01L33/0095 , H01L33/007
Abstract: A micro light emitting diode (LED) device and a method of manufacturing the same are provided. A micro LED device includes a light emitting layer that is provided on a support substrate, a bonding layer, and a driver layer. The light emitting layer includes a stacked structure including a first semiconductor layer, an active layer, and a second semiconductor layer; first and second electrodes provided on a first side and a second side of the stacked structure; and a plurality of light emitting regions. The bonding layer is positioned between the support substrate and the light emitting layer. The drive layer includes a drive element electrically connected to the light emitting layer and is positioned on the light emitting layer to apply power to the plurality of light emitting regions of the light emitting layer.
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公开(公告)号：US11776988B2
公开(公告)日：2023-10-03
申请号：US17227981
申请日：2021-04-12
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Junhee Choi , Kiho Kong , Nakhyun Kim , Dongho Kim , Junghun Park , Jinjoo Park , Eunsung Lee , Joohun Han
IPC: H01L27/15
CPC classification number: H01L27/156
Abstract: A micro light-emitting display apparatus and a method of manufacturing the same are disclosed The micro light-emitting display apparatus includes a first semiconductor layer, an isolation structure provided on the first semiconductor layer and configured to define a plurality of sub-pixels each configured to emit light, a first light-emitting unit including a first active layer provided in a first sub-pixel among the plurality of sub-pixels, and a second semiconductor layer provided on the first active layer, and a second light-emitting unit including a rod semiconductor layer provided in a second sub-pixel among the plurality of sub-pixels, a second active layer provided on the rod semiconductor layer, and a third semiconductor layer provided on the second active layer. The first active layer is configured to emit blue light and the second active layer is configured to emit green light.
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公开(公告)号：US11688827B2
公开(公告)日：2023-06-27
申请号：US17106515
申请日：2020-11-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Nakhyun Kim , Junhee Choi , Jinjoo Park , Joohun Han
CPC classification number: H01L33/24 , H01L25/0753 , H01L25/167 , H01L29/0676 , H01L33/32 , H01L33/44
Abstract: A nanorod semiconductor layer having a flat upper surface, a micro-LED including the nanorod semiconductor layer, a pixel plate including the micro-LED, a display device including the pixel plate, and an electronic device including the pixel plate are provided. The nanorod semiconductor layer includes: a main body; and an upper end formed from the main body, wherein the upper end includes: a first inclined surface; a second inclined surface facing the first inclined surface; and a flat upper surface between the first inclined surface and the second inclined surface, and a width of the upper end becomes narrower in an upward direction, and when a length of the upper end protruded from the main body (a thickness of the upper end) is L1, an inclination angle between a surface extending parallel to a surface selected from the first and second inclined surfaces and the flat upper surface is β, and a width of the main body is D, a width D1 of the flat upper surface satisfies Equation 1.
D1=D−(2×L1×tan β)
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