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公开(公告)号：US20220146764A1
公开(公告)日：2022-05-12
申请号：US17520251
申请日：2021-11-05
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Aleksander V. MOROZOV , Sergey E. Dubynin , German B. Dubinin , Chilsung Choi , Hongseok Lee , Hoon Song
Abstract: There is provided a beam expander including a first optical element, a second optical element, a composite waveguide including a plurality of waveguide elements, and a dichroic coating provided between the plurality of waveguide elements. The first optical element inputs a collimated incident beam from the outside into the composite waveguide, and the second optical element outputs , from the composite waveguide, collimated incident beam, input to the composite waveguide, wherein the collimated incident beam input into the composite waveguide is divided into multiple wavefronts by the dichroic coating, and the multiple wavefronts are mixed by total internal reflection in the composite waveguide. When the beam expander is used, coherency and collimation of an output beam may be maintained and speckles may be reduced or eliminated while improving the efficiency of an optical system.
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102.发明授权公开(公告)号：US11327439B2
公开(公告)日：2022-05-10
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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公开(公告)号：US11282289B2
公开(公告)日：2022-03-22
申请号：US16933696
申请日：2020-07-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hojung Kim , Yongkyu Kim , Hoon Song , Hongseok Lee
IPC: G06T19/20 , G06F17/14 , H04N13/271 , H04N13/161 , G03H1/08 , G06T7/262 , H04N7/18
Abstract: A method for processing a three-dimensional (3D) image includes acquiring a frame of a color image and a frame of a depth image, and generating a frame by combining the acquired frame of the color image with the acquired frame of the depth image. The generating of the frame includes combining a line of the color image with a corresponding line of the depth image.
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104.发明授权公开(公告)号：US11262700B2
公开(公告)日：2022-03-01
申请号：US16660887
申请日：2019-10-23
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：US11226590B2
公开(公告)日：2022-01-18
申请号：US15819485
申请日：2017-11-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jungkwuen An , Hoon Song , Sunil Kim , Hongseok Lee , Joonyong Park , Chilsung Choi
Abstract: Provided are holographic displays and operating methods of the holographic display. The holographic display includes a backlight portion configured to emit light for displaying an image; a deflector configured to control a direction at which the image is displayed; a lens portion configured to control a location where the image to be displayed is formed to match a location that satisfies a diffraction condition; and a panel portion configured to display a 3D image by combining the image to be displayed with an interference pattern generated with respect to an overlapped hologram.
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Patent Agency Ranking
公开(公告)号：US11194080B2
公开(公告)日：2021-12-07
申请号：US16894971
申请日：2020-06-08
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hyun Seok Choi , Beom Seok Kim , Ju Hyun Kim , Hoon Song , Jung Kwuen An , Sung Dug Kim , Hong-Seok Lee , Sunghyun Han
IPC: G02B5/18
Abstract: A diffractive optical element including a diffraction layer including a plurality of optical axes along an in-plane direction, wherein the diffraction layer includes an anisotropic material that satisfies one of Relationship Equations 1A to 3A Δn1(450 nm)
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公开(公告)号：US11132935B2
公开(公告)日：2021-09-28
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：US10962796B2
公开(公告)日：2021-03-30
申请号：US16206555
申请日：2018-11-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hoon Song , Jungkwuen An , Young Kim , Kanghee Won
Abstract: A beam deflector and a three-dimensional (3D) display device including the beam deflector are provided. The beam deflector includes a first deflector configured to controllably deflect incident light having a first polarization state in a first horizontal direction; a half-wave plate configured to rotate a polarization of light transmitted by the first deflector by 90°; and a second deflector configured to controllably deflect light transmitted by the half-wave plate having the first polarization state in a second horizontal direction that is different from the first horizontal direction.
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公开(公告)号：US10761256B2
公开(公告)日：2020-09-01
申请号：US16374318
申请日：2019-04-03
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： German B. Dubinin , Sergey E. Dubynin , Aleksander V. Morozov , Andrey N. Putilin , Sergey S. Kopenkin , Yuriy P. Borodin , Jungkwuen An , Chilsung Choi , Hongseok Lee , Hoon Song , Sunil Kim
IPC: F21V8/00 , G02F1/13357 , G09G3/22 , G02B5/18 , G02B5/02
Abstract: Provided is a backlight unit including a light source emitting coherent light, a light guide plate propagating the light emitted by the light source, an input grating inputting the light from the light source into the light guide plate, an output grating provided on one surface of the light guide plate and diffracting light incident from inside the light guide plate and outputting the light, in a direction toward the outside of the light guide plate, a first recuperation element provided on one surface of the light guide plate and including a first recycle grating, and a second recuperation element provided opposite to the first recuperation element and directing, to the first recuperation element, incident light that is propagating inside the light guide plate.
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110.发明申请公开(公告)号：US20200273388A1
公开(公告)日：2020-08-27
申请号：US16579231
申请日：2019-09-23
Inventor： Wontaek Seo , Yongkeun Park , Hoon Song , Jungkwuen An , Jongchan Park
IPC: G09G3/00 , G02B27/22 , H04N13/351 , G01S3/787
Abstract: A viewing angle expansion plate, which is a multi-pinhole mask, includes a plurality of cell areas; and a plurality of pinholes formed in the plurality of cell areas, wherein each cell area from among the plurality of cell areas corresponds to a respective pixel from among a plurality of pixels in a flat panel display. The flat panel display includes a light source configured to emit parallel light; a flat panel, on which the parallel light is incident, configured to provide a three-dimensional image; and the viewing angle expansion plate.
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