公开(公告)号：US11509877B2

公开(公告)日：2022-11-22

申请号：US16905141

申请日：2020-06-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yuntae Kim ,  Bongsu Shin ,  Geeyoung Sung ,  Hongseok Lee

IPC: H04N13/128 ,  H04N13/111 ,  H04N13/00

Abstract: An image display device includes a processor that sets a location of a virtual image plane on which a virtual image is formed according to depth information included in first image data and generates second image data obtained by correcting the first image data based on the set location of the virtual image plane; an image forming optical system including a display element configured to modulate light to form a display image according to the second image data and a light transfer unit that forms the virtual image on the virtual image plane, the virtual image corresponding to the display image formed by the display element, the light transfer unit comprising a focusing member; and a drive unit that drives the image forming optical system to adjust the location of the virtual image plane.

公开(公告)号：US20220317626A1

公开(公告)日：2022-10-06

申请号：US17689409

申请日：2022-03-08

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Seokil Moon ,  Dongheon Yoo ,  Seungwoo Nam ,  Byoungho Lee ,  Changkun Lee ,  Hongseok Lee

IPC: G03H1/08 ,  G03H1/00

Abstract: Provided is a method of generating a hologram, the method including generating a kernel and a neural network configured to model an aberration of a holographic display device, obtaining second image data output from the neural network to which first image data obtained by propagating a first hologram based on the kernel is input, updating the kernel and the neural network based on comparing the second image data and predetermined image data, and generating a second hologram based on the kernel and the neural network.

公开(公告)号：US20220308526A1

公开(公告)日：2022-09-29

申请号：US17502316

申请日：2021-10-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyeonseung Yu ,  Hoon Song ,  Jungkwuen An ,  Hongseok Lee

IPC: G03H1/22

Abstract: A holographic display device is provided. The holographic display device includes a spatial light modulator for representing a partial complex domain and reproducing a hologram by diffracting light, and a processor for controlling the spatial light modulator. The processor controls the spatial light modulator by employing an algorithm for calculating hologram information according to the representation of the partial complex domain of the spatial light modulator.

公开(公告)号：US20220187677A1

公开(公告)日：2022-06-16

申请号：US17552139

申请日：2021-12-15

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Cornell University

Inventor： Kanghee Won ,  Maxim Radikovich Shcherbakov ,  Hongseok Lee ,  Melissa Bosch ,  Gennady Shvets

IPC: G02F1/29

Abstract: A meta-optical device, which imparts a phase delay to incident light of a wavelength band, includes: a first electrode and a second electrode spaced apart from each other; a liquid crystal layer between the first electrode and the second electrode; a meta-surface layer located within the liquid crystal layer and including a plurality of nanostructures each having a shape dimension smaller than a center wavelength of the wavelength band; and a voltage device configured to apply a voltage between the first electrode and the second electrode. The meta-optical device may exhibit an electrically controlled variable focal length.

公开(公告)号：US20210405388A1

公开(公告)日：2021-12-30

申请号：US17474685

申请日：2021-09-14

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Changkun LEE ,  Seokil Moon ,  Byoungho Lee ,  Wontaek Seo ,  Geeyoung Sung ,  Hongseok Lee

IPC: G02B30/00 ,  G02B3/10 ,  G02B27/10

Abstract: Provided is a multi-image display apparatus including an image forming device configured to form a first image, a first polarization plate configured to transmit a first polarization component of the first image provided from the image forming device, a second polarization plate configured to transmit a second polarization component of a second image that is provided from a path different from the first image, the second polarization component being different from the first polarization component, a screen configured to reflect and diffuse the first image, and transmit the second image, and a polarization selective lens configured to focus the first image having the first polarization component, and transmit the second image having the second polarization component without refraction.

公开(公告)号：US11156961B2

公开(公告)日：2021-10-26

申请号：US16361422

申请日：2019-03-22

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  University of Seoul Industry Cooperation Foundation

Inventor： Hojung Kim ,  Kichul Kim ,  Yongkyu Kim ,  Hongseok Lee

IPC: G03H1/04 ,  G02B27/00 ,  G02B27/01 ,  G03H1/22 ,  G06T5/10

Abstract: A method and apparatus for processing hologram image data capable of optimizing image quality of a hologram image are provided. The image processing method includes receiving input image data, reading a header included at a predetermined location in the input image data, and generating hologram data configured to display a hologram image by performing a Fourier calculation and pixel encoding on the input image data based on at least one parameter recorded in the header, wherein the at least one parameter recorded in the header includes at least one of depth information, scale information, and gamma information.

公开(公告)号：US20210302757A1

公开(公告)日：2021-09-30

申请号：US17036837

申请日：2020-09-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young Kim ,  Soonbum Kwon ,  Byonggwon Song ,  Jungkwuen An ,  Kanghee Won ,  Hongseok Lee ,  Jong-Young Hong

IPC: G02B30/25 ,  G02F1/1335

Abstract: A geometric phase optical element and a three-dimensional display apparatus including the same are provided. The geometric phase optical element includes: a liquid crystal layer; a first electrode on a surface of the liquid crystal layer; and a second electrode on another surface of the liquid crystal layer, wherein, when no voltage is applied to the first and second electrodes, the liquid crystal layer is configured such that a phase difference according to an arrangement of the liquid crystal is π and light transmitted through the liquid crystal layer is diffracted by a first deflection angle, and when a first voltage that causes the phase difference according to the arrangement of the liquid crystal to become π/2 is applied to the first and second electrodes, the liquid crystal layer is configured such that the light transmitted through the liquid crystal layer is diffracted by a second deflection angle.

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

IPC: G03H1/22 ,  F21V8/00 ,  G02B27/09 ,  G02B27/14 ,  G02F1/29

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.

公开(公告)号：US10928645B2

公开(公告)日：2021-02-23

申请号：US16249434

申请日：2019-01-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yuntae Kim ,  Geeyoung Sung ,  Changkun Lee ,  Hongseok Lee

IPC: G02B30/40 ,  G06T7/50 ,  G06T7/20 ,  G03H1/16 ,  G03H1/08 ,  G09G3/00

Abstract: A three-dimensional (3D) image display apparatus includes a processor configured to determine, from image data of a 3D image to be displayed, a representative depth value based on a current frame of the 3D image and a previous frame of the 3D image, and an imaging optical system configured to generate the 3D image in a predetermined space by modulating light based on the representative depth value.

公开(公告)号：US20210003852A1

公开(公告)日：2021-01-07

申请号：US16919987

申请日：2020-07-02

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)

Inventor： Young Kim ,  Hongseok Lee ,  Seokho Song ,  Jungkwuen An ,  Kanghee Won ,  Changkun Lee

IPC: G02B27/09 ,  G02B27/01

Abstract: Provided are a Fourier-beam shaper and a display apparatus including the Fourier-beam shaper. The Fourier-beam shaper includes: a waveguide; an input coupler configured to direct a plurality of light beams toward the waveguide in a time-sequential manner; and a spatial converter configured to output the plurality of light beams traveling in the waveguide through spatially different regions of the spatial converter.