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公开(公告)号：US20180024628A1
公开(公告)日：2018-01-25
申请号：US15370411
申请日：2016-12-06
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunil KIM , Hoon SONG , Hongseok LEE , Jungkwuen AN , Chilsung CHOI
CPC classification number: G06F3/013 , F21V5/007 , F21V23/003 , F21Y2115/00 , F21Y2115/15 , G02B3/0006 , G02B27/01 , G02B27/0103 , G02B2027/0109 , G02B2027/0134 , G03H1/02 , G03H1/2286 , G03H1/2294 , G03H2001/0212 , G03H2001/0224 , G03H2001/2242 , G03H2222/34 , G03H2223/17 , G03H2223/19 , G03H2226/05 , G09G3/3208 , G09G3/342 , G09G2354/00
Abstract: A beam steering backlight unit provides a hologram image to multiple viewing positions and a holographic display apparatus includes the beam steering backlight unit. The backlight unit includes a light source array comprising a plurality of two-dimensionally arranged light sources and a micro lens array arranged to face the light source array and comprising a plurality of two-dimensionally arranged micro lenses. The light source array includes a plurality of light source blocks each corresponding to a respective one of the plurality of micro lenses, wherein a plurality of the light sources are arranged in each of the plurality of light source blocks. The light source array is configured to select and turn on only those light sources of the plurality of light sources respectively disposed in a same position in each of the plurality of light source blocks and turn off the other light sources.
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公开(公告)号：US20170090089A1
公开(公告)日：2017-03-30
申请号：US15251475
申请日：2016-08-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunil KIM , Juwon SEO , Wontaek SEO , Chilsung CHOI
IPC: F21V8/00
CPC classification number: G02B6/005 , G02B6/00 , G02B6/0055 , G02B6/0066 , G02B27/01
Abstract: Provided is a back light unit (BLU) for holographic display. The BLU includes a first diffraction grating attached to a waveguide, a second diffraction grating that supplies light to the first diffraction grating, a light source that supplies light to the second diffraction grating, and a light reflection element that reflects light towards the first diffraction grating. The back light unit may further include a lens that is disposed in front of the waveguide. The light reflection element may be disposed parallel to a rear surface of the waveguide. The light reflection element may be inclined with respect to the rear surface of the waveguide. The light reflection element may be a mirror or a prism array.
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公开(公告)号：US20250067849A1
公开(公告)日：2025-02-27
申请号：US18409388
申请日：2024-01-10
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Byunggil JEONG , Sunil KIM , Junghyun PARK , Minkyung LEE
Abstract: Provided are a spatial light modulator, a method of manufacturing the same, and a light detection and ranging (LiDAR) apparatus including the spatial light modulator. The spatial light modulator includes a substrate including an opening, and a plurality of pixels, wherein at least one pixel of the plurality of pixels includes a first reflective layer provided on the substrate, a cavity layer provided on the first reflective layer, and a second reflective layer provided on the cavity layer, the second reflective layer including a grating structure. The plurality of pixels are supported by the substrate and are arranged to be separated from each other.
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34.发明公开公开(公告)号：US20240201557A1
公开(公告)日：2024-06-20
申请号：US18214721
申请日：2023-06-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunil KIM , Minkyung LEE , Junghyun PARK , Byunggil JEONG
IPC: G02F1/29
CPC classification number: G02F1/29
Abstract: A spatial light modulator includes a substrate, a blocking layer provided on one surface of the substrate, a lower reflective layer provided on the blocking layer, an upper reflective layer facing the lower reflective layer, and a cavity layer provided between the upper reflective layer and the lower reflective layer, where the blocking layer includes a plurality of holes configured to block heat transferred from the upper reflective layer to the substrate.
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35.发明公开公开(公告)号：US20230204782A1
公开(公告)日：2023-06-29
申请号：US17867285
申请日：2022-07-18
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Junghyun PARK , Sunil KIM , Minkyung LEE , Byunggil JEONG
IPC: G01S17/894 , G01S17/10 , G01S7/481 , G01S7/4865 , H01S5/125
CPC classification number: G01S17/894 , G01S7/4814 , G01S7/4865 , G01S17/10 , H01S5/125
Abstract: A three-dimensional (3D) distance information acquisition system and an electronic device including the same are provided. The 3D distance information acquisition system includes: a transmitter including a light source configured to emit a light based on a time division method and a spatial light modulator configured to steer the light incident from the light source to each scan point on an object; a receiver including a photodetector configured to detect the light reflected from the scan point of the object; and a processor configured to obtain 3D distance information based on the light detected by the receiver.
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Patent Agency Ranking
公开(公告)号：US20230123994A1
公开(公告)日：2023-04-20
申请号：US17706100
申请日：2022-03-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Minkyung LEE , Sunil KIM , Junghyun PARK , Byunggil JEONG
Abstract: Provided is a spatial light modulator includes a substrate; a distributed Bragg reflector (DBR) layer provided on a surface of the substrate; a cavity layer provided on the DBR layer; a pixel layer provided on the cavity layer, the pixel layer including a plurality of pixels; and a heat blocking member provided between the plurality of pixels and configured to block heat transfer between the plurality of pixels, wherein each of the plurality of pixels includes a plurality of active meta-patterns.
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公开(公告)号：US20220206322A1
公开(公告)日：2022-06-30
申请号：US17697791
申请日：2022-03-17
Applicant: SAMSUNG ELECTRONICS CO.,LTD.
Inventor： Sunil KIM , Junghyun Park , Duhyun Lee , Byunggill Jeong
Abstract: Provided is an optical modulator including a plurality of unit cells, an active layer including a plurality of refractive index changing areas that are separated from each other, each of the plurality of refractive index changing areas having a refractive index that changes based on an electrical signal applied thereto, a plurality of antenna patterns provided over the active layer, and a mirror layer provided under the active layer opposite to the plurality of antenna patterns.
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公开(公告)号：US20210088813A1
公开(公告)日：2021-03-25
申请号：US16805070
申请日：2020-02-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Duhyun LEE , Changgyun SHIN , Sunil KIM , Junghyun PARK , Byunggil JEONG
Abstract: A light modulator for amplifying an intensity of incident light and modulating a phase of the incident light is provided. The light modulator includes: a first distributed Bragg reflector (DBR) layer having a first reflectivity and comprising at least two first refractive index layers that have different refractive indices from each other and are repeatedly alternately stacked; a second DBR layer having a second reflectivity and comprising at least two second refractive index layers that have different refractive indices from each other and are repeatedly alternately stacked; and an active layer disposed between the first DBR layer and the second DBR layer, and comprising a quantum well structure.
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公开(公告)号：US20210088812A1
公开(公告)日：2021-03-25
申请号：US16848433
申请日：2020-04-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunil KIM , Junghyun PARK , Duhyun LEE , Byunggil JEONG
Abstract: Provided is an optical modulator including a plurality of unit cells, an active layer including a plurality of refractive index changing areas that are separated from each other, each of the plurality of refractive index changing areas having a refractive index that changes based on an electrical signal applied thereto, a plurality of antenna patterns provided over the active layer, and a mirror layer provided under the active layer opposite to the plurality of antenna patterns.
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公开(公告)号：US20210033892A1
公开(公告)日：2021-02-04
申请号：US17075007
申请日：2020-10-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunil KIM , Changbum Lee , Byounglyong Choi
Abstract: A beam steering apparatus may include: a mirror; a refractive index modulation layer disposed on the mirror; a nanoantenna on the refractive index modulation layer; and an insulating layer disposed between the nanoantenna and the refractive index modulation layer, wherein the insulating layer has a thickness distribution in which a first thickness of the insulating layer on a central region of the mirror is less than a second thickness of the insulating layer on an edge region of the mirror, wherein a refractive index of the refractive index modulation layer is modulated to control propagation direction of beam.
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