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公开(公告)号：US12147096B2
公开(公告)日：2024-11-19
申请号：US18334838
申请日：2023-06-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Junghyun Park , Yeonsang Park , Sunil Kim , Duhyun Lee , Byunggil Jeong
Abstract: Provided is a light modulator including a substrate, and a resonator configured to modulate a phase of incident light by modulating a refractive index based on an external stimulus, the resonator comprising a first reflective structure provided on the substrate, a cavity layer provided on the first reflective structure, and a second reflective structure provided on the cavity layer, wherein at least one of the first reflective structure or the second reflective structure comprises first material layers, second material layers that are alternately stacked with the first material layers, and a third material layer, and wherein each of the first material layers has a first refractive index, each of the second material layers has a second refractive index that is different from the first refractive index, and the third material layer has a third refractive index that is different from the first refractive index.
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公开(公告)号：US11921288B2
公开(公告)日：2024-03-05
申请号：US17327281
申请日：2021-05-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Wontaek Seo , Hongseok Lee , Sunil Kim , Seokil Moon , Bongsu Shin , Daeho Yang , Changkun Lee
CPC classification number: G02B27/0101 , G02B26/0833 , G02B27/0093 , G02B27/30 , G02B2027/014
Abstract: A display device includes a light source array including a plurality of light sources where at least one of the plurality of light sources is selectively driven, a spatial light modulator for modulating light from the light source array to form image light, a focusing optical system for focusing the image light formed by the spatial light modulator at a position in a predetermined eye box, a micro mirror array arranged in an optical path formed in the focusing optical system and including a plurality of mirror cells. The plurality of mirror cells are controlled to be in an ON state in that light is reflected in a direction toward an inside of the eye box or to be in an OFF state in that light is reflected in a direction toward an outside of the eye box.
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公开(公告)号：US11768380B2
公开(公告)日：2023-09-26
申请号：US17411940
申请日：2021-08-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Wontaek Seo , Geeyoung Sung , Sunil Kim , Bongsu Shin , Changkun Lee , Hongseok Lee
CPC classification number: G02B27/0172 , G02B27/0093 , G02B2027/0174 , G02B2027/0178
Abstract: A three-dimensional (3D) image display apparatus is provided. The apparatus includes a plurality of light sources; a spatial light modulator configured to modulate light from the plurality of light sources according to 3D image information; and a focusing optical system configured to focus an image formed by the spatial light modulator onto a focal plane. The plurality of light sources may be arranged such that multiple focal points, respectively corresponding to the plurality of light sources, are formed on the focal plane near a pupil of a user.
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公开(公告)号：US11747657B2
公开(公告)日：2023-09-05
申请号：US17697791
申请日：2022-03-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunil Kim , Junghyun Park , Duhyun Lee , Byunggil Jeong
CPC classification number: G02F1/015 , H01S5/0085 , H01S5/18375 , G02F2202/10
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：US11714301B2
公开(公告)日：2023-08-01
申请号：US16880350
申请日：2020-05-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Junghyun Park , Yeonsang Park , Sunil Kim , Duhyun Lee , Byunggil Jeong
CPC classification number: G02F1/0311 , G02B26/10 , G02F1/0147 , G02F1/0316 , G02F1/09 , G02F2201/307 , G02F2201/346
Abstract: Provided is a light modulator including a substrate, and a resonator configured to modulate a phase of incident light by modulating a refractive index based on an external stimulus, the resonator comprising a first reflective structure provided on the substrate, a cavity layer provided on the first reflective structure, and a second reflective structure provided on the cavity layer, wherein at least one of the first reflective structure or the second reflective structure comprises first material layers, second material layers that are alternately stacked with the first material layers, and a third material layer, and wherein each of the first material layers has a first refractive index, each of the second material layers has a second refractive index that is different from the first refractive index, and the third material layer has a third refractive index that is different from the first refractive index.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11347057B2
公开(公告)日：2022-05-31
申请号：US16283979
申请日：2019-02-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunil Kim , Bongsu Shin , Wontaek Seo , Changkun Lee
Abstract: Provided is an image display device including a first light source configured to emit a first beam of light, a second light source configured to emit a second beam of light, a spatial light modulator configured to modulate the first beam of light and the second beam of light, a holographic optical element configured to focus, on a first focal point, the first beam of light emitted from the first light source and modulated by the spatial light modulator, and to focus, on a second focal point, the second beam of light emitted from the second light source and modulated by the spatial light modulator and a processor configured to control the first and the second light sources and the spatial light modulator.
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公开(公告)号：US20210405500A1
公开(公告)日：2021-12-30
申请号：US17101200
申请日：2020-11-23
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Junghyun Park , Sunil Kim , Duhyun Lee , Byunggil Jeong
IPC: G02F1/29
Abstract: Provided is an optical modulating device including an incidence optical system, an optical modulating assembly including a plurality of nano-antennas that form a meta-grating based on a driving signal, the optical modulating assembly being configured to change a traveling direction of incidence light incident at an incidence angle from the incidence optical system based on an effective displacement of the meta-grating according to the driving signal, and an emission optical system configured to emit light steered by the optical modulating assembly, wherein the emission optical system is further configured to emit first-order diffraction light of the incidence light based on the meta-grating.
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公开(公告)号：US11187901B2
公开(公告)日：2021-11-30
申请号：US16275424
申请日：2019-02-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Bongsu Shin , Sunil Kim , Wontaek Seo , Geeyoung Sung , Changkun Lee
IPC: G02B27/01
Abstract: A see-through type display device includes an image generation unit configured to emit image light, a light coupling unit configured to generate off-axis aberration in the image light, and a correction aberration generation unit configured to generate correction aberration, opposite to the off-axis aberration, in the image light emitted from the image generation unit, wherein the correction aberration generation unit is disposed on an optical path of the image light between the image generation unit and the light coupling unit, and wherein the light coupling unit is disposed off-axis relative to the image light.
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9.发明授权公开(公告)号：US11119444B2
公开(公告)日：2021-09-14
申请号：US16514253
申请日：2019-07-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yunhee Kim , German B. Dubinin , Alexander V. Morozov , Sunil Kim , Hoon Song , Jungkwuen An , Young Kim , Hongseok Lee , Chilsung Choi
Abstract: A backlight unit for a binocular-holographic display device and a holographic display device including the same are provided. The backlight unit includes a light source unit which outputs light, a first beam expansion unit which expands, in a first direction, the light output from the light source unit, a second beam expansion unit which expands, in a second direction perpendicular to the first direction, the light output from the first beam expansion unit, and a beam deflection unit which diffracts light incident on the first beam expansion unit. The holographic display device includes the backlight unit, a field lens, and a spatial light modulator.
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10.发明授权公开(公告)号：US11048142B2
公开(公告)日：2021-06-29
申请号：US16262362
申请日：2019-01-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Byunggil Jeong , Sunil Kim
IPC: G02F1/29
Abstract: Provided is a driving method for a beam steering device having a metasurface optical phased array, the beam steering device includes a nano-antenna, a conductor, and an active layer arranged therebetween. The driving method includes comparing a first voltage to be applied to a first electrode of one of the nano-antenna and the conductor, with a second voltage applied immediately before the first voltage, and applying a correction voltage the first electrode of the other of the nano-antenna and the conductor and then applying the first voltage. The correction voltage is applied to the first electrode and has an electrical polarity different from an electrical polarity of the second voltage.
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