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公开(公告)号：US11454928B2
公开(公告)日：2022-09-27
申请号：US16596914
申请日：2019-10-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jungkwuen An , Hoon Song , Hongseok Lee , Wontaek Seo
Abstract: Provided is a holographic display apparatus including a light source configured to emit light, a spatial light modulator configured to form a hologram pattern to modulate the light incident thereon and reproduce a hologram image, the spatial light modulator including a plurality of display pixels that are arranged two-dimensionally, and an optical element provided opposite a light incidence surface of the spatial light modulator or a light exit surface of the spatial light modulator, the optical element including an array of a plurality of light transmission patterns that are arranged irregularly.
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公开(公告)号：US20220179210A1
公开(公告)日：2022-06-09
申请号：US17338954
申请日：2021-06-04
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunil KIM , Wontaek Seo , Geeyoung Sung , Hoon Song , Hongseok Lee
IPC: G02B27/01
Abstract: A light combiner combines first light provided by a light source with second light containing an image of an exterior environment and provides the combined light to a user. The light combiner includes a transmissive optical device comprising a first surface on which the first light is incident and a second surface facing the first surface, and branching the first light in a plurality of directions to pass through the second surface, and a holographic optical device on a side of the transmissive optical device facing the second surface and spaced apart from the transmissive optical device. The holographic optical device diffracts light rays branched and transmitted by the transmissive optical device in the plurality of directions, to be respectively focused at a plurality of focal points different from each other and corresponding to the directions, and transmits the second light therethrough to travel toward the plurality of focal points.
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公开(公告)号：US11243449B2
公开(公告)日：2022-02-08
申请号：US17167872
申请日：2021-02-04
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kanghee Won , Young Kim , Byonggwon Song , Hoon Song , Jungkwuen An , Hongseok Lee
Abstract: Provided are a light deflector and a light output device including the light deflector, the light deflector including a first electrode layer and a second electrode layer that are spaced apart from each other and facing each other, and a deflection layer configured to deflect incident light thereon based on a voltage applied to the first electrode layer and the second electrode layer, wherein the first electrode layer includes a plurality of electrode elements that are spaced apart from each other, and a resistor that is in contact with at least part of the plurality of electrode elements and in which a voltage drop is generated.
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公开(公告)号：US11144010B2
公开(公告)日：2021-10-12
申请号：US16287493
申请日：2019-02-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Young Kim , Hongseok Lee , Hoon Song , Jungkwuen An , Kanghee Won , Chilsung Choi
IPC: G03H1/04 , G02B6/12 , G02F1/133 , G02F1/1335 , G02F1/1343
Abstract: A focus modulation optical system and a holographic display device having the focus modulation optical system are disclosed. The holographic display device includes a light source configured to emit a plurality of color lights, a focus modulation optical system including at least one variable focus lens that is configured to change a focusing position of incident light by electrical control of the at least one variable focus lens based on a color of light incident on the variable focus lens, and a spatial light modulator configured to form a holographic image by diffracting light output from the focus modulation optical system.
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55.发明授权公开(公告)号：US10969744B2
公开(公告)日：2021-04-06
申请号：US16114273
申请日：2018-08-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Wontaek Seo , Hongseok Lee , Juwon Seo , Hoon Song , Jungkwuen An
Abstract: A holographic display apparatus includes: 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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Patent Agency Ranking
公开(公告)号：US20210088788A1
公开(公告)日：2021-03-25
申请号：US16810403
申请日：2020-03-05
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Chilsung CHOI , Hoon Song , Hongseok Lee
Abstract: Provided a backlight unit including a light source and a light guide structure configured to guide the light emitted from the light source, the light guide structure includes a first coupler layer including a first output coupler configured to expand light in a first direction and output the expanded light in the first direction to the outside of the light guide structure, and a first expansion coupler configured to expand the light in a second direction perpendicular to the first direction and provide the expanded light in the second direction to the first output coupler, and a second coupler layer including a second output coupler configured to expand light in the first direction and output the expanded light to the outside of the light guide structure, and a second expansion coupler configured to expand light in the second direction and provide the expanded light to the second output coupler.
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57.发明授权公开(公告)号：US10895798B2
公开(公告)日：2021-01-19
申请号：US16121392
申请日：2018-09-04
Inventor： Young Kim , Kanghee Won , Himchan Park , Jinwook Burm , Hoon Song , Hongseok Lee
Abstract: A beam deflector, a holographic display device including the beam deflector, and a method of driving the beam deflector are provided. The beam deflector includes first electrodes spaced apart from each other on a first substrate, second electrodes spaced apart from each other on a second substrate, a liquid crystal layer between the first substrate and the second substrate, and a controller configured to cause active prisms to be formed in the liquid crystal layer and to form a floating zone by turning off a voltage of at least one of the first electrode and the second electrode disposed between adjacent ones of the active prisms.
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公开(公告)号：US20210003967A1
公开(公告)日：2021-01-07
申请号：US16717348
申请日：2019-12-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Young Kim , Wontaek Seo , Jungkwuen An , Kanghee Won , Hongseok Lee , Hoon Song , Chilsung Choi
Abstract: Provided are methods of processing a holographic image and apparatuses using the methods. A method includes obtaining image data with respect to a three-dimensional (3D) object, obtaining interference patterns in a computer-generated hologram (CGH) plane by performing a Fourier transform on the image data, and generating a CGH with respect to the 3D object based on the interference patterns, wherein the Fourier transform is performed based on a focal length of an eye lens of an observer.
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公开(公告)号：US10884240B2
公开(公告)日：2021-01-05
申请号：US16233980
申请日：2018-12-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hoon Song , Hongseok Lee , Young Kim , Jungkwuen An , Kanghee Won , Chilsung Choi
Abstract: A holographic display device includes a light source configured to emit light, the light including first light of a first wavelength, second light of a second wavelength, and third light of a third wavelength; a spatial light modulator configured to form a holographic pattern to modulate the light emitted from the light source and to produce a holographic image; and a focusing optical system configured to focus the holographic image. The focusing optical system includes a fixed-focus optical system having a fixed focal length, and a variable focus optical system having a focal length that is changed by electrical control. The fixed-focus optical system is configured to focus the first light of the first wavelength, the second light of the second wavelength, and the third light of the third wavelength on different positions, respectively, on an optical axis to cancel a chromatic aberration by the variable focus optical system.
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60.发明授权公开(公告)号：US10852559B2
公开(公告)日：2020-12-01
申请号：US15946282
申请日：2018-04-05
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Chilsung Choi , Hoon Song , Jungkwuen An , Sunil Kim , Sunghoon Lee , Hongseok Lee
Abstract: Provided are a light guide plate, a backlight unit, and a holographic display apparatus including the backlight unit. The backlight unit includes a light source and a light guide plate including two or more layers configured to guide light from the light source, wherein the two or more layers are configured to control a ratio of light transmitted therethrough to light reflected thereby.
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