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    HOLOGRAPHIC DISPLAY DEVICE HAVING REDUCED CHROMATIC ABERRATION
    2.
    发明申请
    HOLOGRAPHIC DISPLAY DEVICE HAVING REDUCED CHROMATIC ABERRATION 审中-公开

    公开(公告)号：US20200012092A1

    公开(公告)日：2020-01-09

    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

    IPC: G02B27/00 ,  G02B7/09 ,  G03H1/22

    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.

    HOLOGRAPHIC DISPLAY APPARATUS AND HOLOGRAPHIC DISPLAY METHOD FOR PROVIDING ENHANCED IMAGE QUALITY
    3.
    发明申请
    HOLOGRAPHIC DISPLAY APPARATUS AND HOLOGRAPHIC DISPLAY METHOD FOR PROVIDING ENHANCED IMAGE QUALITY 审中-公开

    公开(公告)号：US20180364642A1

    公开(公告)日：2018-12-20

    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

    IPC: G03H1/22 ,  G03H1/08 ,  G03H1/26 ,  G03H1/04 ,  G03H1/30

    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.

    METHOD AND APPARATUS FOR PROCESSING HOLOGRAPHIC IMAGE
    5.
    发明申请
    METHOD AND APPARATUS FOR PROCESSING HOLOGRAPHIC IMAGE 审中-公开

    公开(公告)号：US20170235277A1

    公开(公告)日：2017-08-17

    申请号：US15271351

    申请日：2016-09-21

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Juwon SEO ,  Wontaek SEO ,  Hoon SONG ,  Jungkwuen AN ,  Hongseok LEE

    IPC: G03H1/26 ,  G06F3/01 ,  G06K9/00 ,  G03H1/22 ,  G03H1/08

    Abstract: An apparatus and method for processing a holographic image are disclosed. The apparatus calculates a first calculation result with respect to an image for the left eye and a first calculation result with respect to an image for the right eye and stores the results at different memory addresses of a storage. Thereafter, the apparatus calculates values of a waveform of light to be modulated by a spatial light modulator by performing a second calculation that uses all of the first calculation results stored in the storage. An image window of the image for the left eye and an image window of the image for the right eye are spatially separated from each other by the apparatus in a viewing window of a hologram image reproduced via the spatial light modulator.

    APPARATUS AND METHOD OF PERFORMING FOURIER TRANSFORM
    6.
    发明申请
    APPARATUS AND METHOD OF PERFORMING FOURIER TRANSFORM 审中-公开
    设备和执行FOURIER变换的方法

    公开(公告)号：US20170064333A1

    公开(公告)日：2017-03-02

    申请号：US15218243

    申请日：2016-07-25

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Hojung KIM ,  Hoon SONG ,  Hongseok LEE

    IPC: H04N19/60 ,  H04N19/42

    CPC classification number: H04N19/60 ,  G03H1/0808 ,  G03H2210/30 ,  G03H2226/02 ,  G06F17/142 ,  H04N19/42

    Abstract: A method of performing a Fourier transform includes generating first data by performing a one-dimensional (1D) fast Fourier transform (FFT), on data having rows and columns, in a row direction; generating second data by performing the 1D FFT, on a portion of the first data, in a column direction; and storing a portion of the second data.

    Abstract translation: 执行傅里叶变换的方法包括通过对行方向上的具有行和列的数据执行一维（1D）快速傅里叶变换（FFT）来产生第一数据; 通过在列方向上对所述第一数据的一部分执行1D FFT来产生第二数据; 以及存储所述第二数据的一部分。

    DISPLAY SYSTEM INCLUDING ELECTRONIC DEVICE AND SCREEN
    7.
    发明申请
    DISPLAY SYSTEM INCLUDING ELECTRONIC DEVICE AND SCREEN 有权

    公开(公告)号：US20250093647A1

    公开(公告)日：2025-03-20

    申请号：US18897860

    申请日：2024-09-26

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jaeseung CHUNG ,  Seokil MOON ,  Hoon SONG ,  Jungkwuen AN ,  Changkun LEE

    IPC: G02B27/01 ,  G02B5/12 ,  G02B27/28

    Abstract: A display system is provided. The display system includes an electronic device including a plurality of projectors emitting a light for providing a three-dimensional (3D) image, and a screen including a geometric phase layer and a retroreflection layer, the geometric phase layer refracts light incident from the plurality of projectors in different directions according to a polarization of the light and the retroreflection layer reflects light incident from the geometric phase layer in an opposite direction to an incident direction, wherein, based on the polarization of the light emitted from the plurality of projectors being a first polarization from among a right-circularly polarization and a left-circularly polarization, the emitted light is refracted in a first direction by the geometric phase layer, the light refracted in the first direction is reflected in an opposite direction to the first direction by the retroreflection layer, and the reflected light is refracted in a second direction toward a predetermined location corresponding to both eyes of a user by the geometric phase layer, and wherein, based on the polarization of the light emitted from the plurality of projectors being a second polarization, the emitted light is refracted in a third direction different from the first direction by the geometric phase layer, the light refracted in the third direction is reflected in an opposite direction to the third direction by the retroreflection layer, and the reflected light is refracted in a fourth direction different from the second direction by the geometric phase layer.

    BEAM DEFLECTOR, METHOD FOR OPERATING THE BEAM DEFLECTOR AND EYE TRACKING DEVICE BASED ON THE BEAM DEFLECTOR
    8.
    发明申请
    BEAM DEFLECTOR, METHOD FOR OPERATING THE BEAM DEFLECTOR AND EYE TRACKING DEVICE BASED ON THE BEAM DEFLECTOR 有权

    公开(公告)号：US20220404681A1

    公开(公告)日：2022-12-22

    申请号：US17556490

    申请日：2021-12-20

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Young KIM ,  Byonggwon SONG ,  Hongsuk KIM ,  Hoon SONG ,  Kanghee WON ,  Hongseok LEE ,  Sunghee JUNG

    IPC: G02F1/31 ,  G06F3/01

    Abstract: Provided is a beam deflector including: a first electrode layer including a plurality of electrode patterns that are arranged in a first direction; a second electrode layer provided to oppose the first electrode layer; a liquid crystal layer provided between the first electrode layer and the second electrode layer in a second direction perpendicular to the first direction, and including a plurality of liquid crystal molecules; an input channel unit including a plurality of input channels; a demultiplexer configured to divide each of the input channels into a preset number of divided channels, and connect the divided channels to the electrode patterns; and a control circuit connected to the demultiplexer, and configured to control an output signal output from the divided channels to the first electrode layer.

    OPTICAL DEVICE WITH REDUCED CHROMATIC ABERRATION AND DISPLAY DEVICE INCLUDING THE SAME
    9.
    发明申请
    OPTICAL DEVICE WITH REDUCED CHROMATIC ABERRATION AND DISPLAY DEVICE INCLUDING THE SAME 有权

    公开(公告)号：US20220107453A1

    公开(公告)日：2022-04-07

    申请号：US17555070

    申请日：2021-12-17

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jong-Young HONG ,  Hoon SONG ,  Jungkwuen AN ,  Hongseok LEE

    IPC: F21V8/00

    Abstract: Provided is an optical device including a first backlight configured to output first light of a first wavelength through a first output coupler, a first lens disposed to face the first output coupler and having a focal length with respect to the first light, a second backlight including a second output coupler, the second backlight being configured to output second light of a second wavelength through the second output coupler, a second lens disposed to face the second output coupler and having different focal lengths with respect to the first light and the second light, a third backlight including a third output coupler, the third backlight being configured to output third light of a third wavelength through the third output coupler, and a third lens disposed to face the third output coupler and having different focal lengths with respect to the first light, the second light, and the third light.

    HOLOGRAPHIC DISPLAY DEVICE HAVING REDUCED CHROMATIC ABERRATION
    10.
    发明申请
    HOLOGRAPHIC DISPLAY DEVICE HAVING REDUCED CHROMATIC ABERRATION 有权

    公开(公告)号：US20210080716A1

    公开(公告)日：2021-03-18

    申请号：US17107290

    申请日：2020-11-30

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Hoon SONG ,  Hongseok LEE ,  Young KIM ,  Jungkwuen AN ,  Kanghee WON ,  Chilsung CHOI

    IPC: G02B27/00 ,  G03H1/22

    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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