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公开(公告)号：US10788681B2
公开(公告)日：2020-09-29
申请号：US15654097
申请日：2017-07-19
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunghoon Lee , Dongouk Kim , Joonyong Park , Jihyun Bae , Hoon Song , Bongsu Shin , Dongsik Shim , Jaeseung Chung
IPC: F21V8/00 , G02B6/34 , G02B5/18 , G02F1/13357 , G02B30/00
Abstract: A backlight unit for a three-dimensional (3D) image display includes a light guiding plate configured to guide light; a light source configured to emit the light to the light guiding plate; and a diffraction grating structure provided on a surface of the light guiding plate, the diffraction grating structure configured to diffract the light emitted from the surface of the light guiding plate, and including diffracting gratings having different heights.
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公开(公告)号：US20200301361A1
公开(公告)日：2020-09-24
申请号：US16780402
申请日：2020-02-03
Applicant: SAMSUNG ELECTRONICS CO., LTD. , Korea University Research and Business Foundation, Sejong Campus
Inventor： Hoon Song , Hwi Kim , Jongha Park , Hojung Kim , Yongkyu Kim
Abstract: A method for processing a three-dimensional holographic image includes obtaining depth images from depth data of a three-dimensional object, dividing each of the depth images into a predetermined number of sub-images, obtaining interference patterns of computer-generated hologram (CGH) patches corresponding to each of the sub-images by performing a Fourier transform to calculate an interference pattern in a CGH plane for object data included in each of the sub-images, and generating a CGH for the three-dimensional object using the obtained interference patterns of the CGH patches.
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公开(公告)号：US20200294442A1
公开(公告)日：2020-09-17
申请号：US16574856
申请日：2019-09-18
Inventor： Wontaek Seo , Yongkeun Park , Hoon Song , Jungkwuen An , Jongchan Park
Abstract: Provided are correction pattern obtaining apparatuses and methods of obtaining a correction pattern by using the correction pattern obtaining apparatuses. The correction pattern obtaining apparatus includes a flat panel display having an optical element that receives one or more input test patterns, a detector that measures intensity of light emitted from the flat panel display corresponding to each of the one or more input test patterns and a processor that determines a correction pattern comprising one or more of the one or more test patterns at a given ratio based on the measured intensity of light corresponding to each of the one or more input test patterns.
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公开(公告)号：US20200285110A1
公开(公告)日：2020-09-10
申请号：US16883596
申请日：2020-05-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kanghee WON , Young Kim , Hoon Song , Sunil Kim , Jungkwuen An , Sunghoon Lee , Hongseok Lee , Chilsung Choi
IPC: G02F1/1335 , G02F1/13363 , G02B5/30 , G03H1/22 , G02F1/29 , G02B30/25 , G02B30/56
Abstract: A beam deflector includes a first wavelength selective polarizer configured to convert a polarization state of light in a first wavelength band into a first polarization state, a first liquid crystal deflector including liquid crystal molecules and an optical path change surface to deflect light incident from the first wavelength selective polarizer, and a controller configured to control the first liquid crystal deflector to adjust an angle of the first optical path change surface.
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85.发明授权公开(公告)号：US10585330B2
公开(公告)日：2020-03-10
申请号：US15863453
申请日：2018-01-05
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Young Kim , Alexander V. Morozov , Hoon Song , Kanghee Won , Hongseok Lee
IPC: G02F1/31 , G02B27/22 , G02F1/1343
Abstract: A liquid crystal light deflector includes a first electrode layer including line electrodes, a second electrode layer including a common electrode, and a liquid crystal layer that forms an electrical prism using liquid crystal molecules according to an electric field formed between the first and second electrode layers. The orientations of the liquid crystal molecules may be reset by an electric field formed between line electrodes of adjacent channels within the first electrode layer. A method of deflecting light includes controlling the first electrode layer and the second electrode layer to reset the orientation of the liquid crystal molecules prior to forming an electrical prism in the liquid crystal layer.
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Patent Agency Ranking
86.发明申请公开(公告)号：US20200041958A1
公开(公告)日：2020-02-06
申请号：US16596933
申请日：2019-10-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Wontaek Seo , Hongseok Lee , Juwon Seo , Hoon Song , Jungkwuen An
Abstract: Provided is a holographic display apparatus including a light source configured to emit light; a spatial light modulator configured to sequentially generate hologram patterns for modulating the light and to sequentially reproduce frames of hologram images based on the hologram patterns; and a controller configured to provide hologram data signals to the spatial light modulator, the hologram data signals being used to sequentially generate the hologram patterns. The controller is configured to further provide, to the spatial light modulator, diffraction pattern data signals for forming periodic diffraction patterns for adjusting locations of the hologram images to be reproduced on a hologram image plane, the diffraction pattern data signals being configured to move the periodic diffraction patterns on the spatial light modulator along a predetermined direction for each of the frames.
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87.发明授权公开(公告)号：US10527773B2
公开(公告)日：2020-01-07
申请号：US15659787
申请日：2017-07-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yunhee Kim , Jaeseung Chung , Hoon Song , Sunil Kim , Jungkwuen An
Abstract: A backlight unit and a holographic display apparatus that includes a backlight unit are provided. The backlight unit includes a light source, a first light guide plate for guiding a light beam emitted by the light source in a first direction, a second light guide plate for guiding the light beam incident via the first light guide plate in a second direction, and an output/input coupler that is disposed between the first light guide plate and the second light guide plate.
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88.发明申请公开(公告)号：US20190339647A1
公开(公告)日：2019-11-07
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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公开(公告)号：US10210823B2
公开(公告)日：2019-02-19
申请号：US15171587
申请日：2016-06-02
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Young Kim , Yunhee Kim , Hoon Song
Abstract: A light deflector includes a first light deflecting member disposed on a transparent substrate and has a refractive index that varies depending on a magnitude of an electric field applied thereto. The light deflector may adjust the refractive index by applying electric fields differently according to regions of the first light deflecting member or time divisions. The light deflector may have a smaller size than a light deflector including an optical device, and may easily adjust the refractive index.
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公开(公告)号：US10146181B2
公开(公告)日：2018-12-04
申请号：US14861308
申请日：2015-09-22
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hojung Kim , Hoon Song , Hongseok Lee
Abstract: Provided are an apparatus and a method for displaying a holographic three-dimensional (3D) image. The apparatus includes an image segmenter configured to segment an original image into a plurality of segments, and a calculator configured to calculate diffraction fringe pattern information for displaying each of the plurality of segments as a 3D holographic image. The image segmenter adjusts the number of the plurality of segments.
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