公开(公告)号：US12189336B2

公开(公告)日：2025-01-07

申请号：US17516142

申请日：2021-11-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daeho Yang ,  Hongseok Lee ,  Wontaek Seo ,  Jungkwuen An ,  Jong-Young Hong

IPC: G03H1/08 ,  G02B27/01 ,  G03H1/22

Abstract: A holographic display apparatus includes: a light source; a spatial light modulator configured to modulate light from the light source according to an image to be displayed on an object plane; and a processor configured to generate a computer generated hologram (CGH) in which a phase value of hologram data to be displayed on a reference plane of the spatial light modulator is 0, the processor being configured to apply a light modulation signal based on the CGH to the spatial light modulator.

公开(公告)号：US11635633B2

公开(公告)日：2023-04-25

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 ,  G02F1/13 ,  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：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：US11953856B2

公开(公告)日：2024-04-09

申请号：US17165548

申请日：2021-02-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hoon Song ,  Dukho Lee ,  Jong-Young Hong ,  Hongseok Lee ,  Chilsung Choi

IPC: G06F3/01 ,  G03H1/22 ,  G06T7/50

CPC classification number: G03H1/2294 ,  G03H1/2205 ,  G06T7/50 ,  G03H2223/23 ,  G03H2223/50 ,  G06F3/013

Abstract: Provided is a holographic display apparatus including: a spatial light modulator that modulates a wavefront of a reference beam to form a hologram image; an optical element arranged to change a position of a viewing window of the hologram image off-axis by a first angle; and an image processor that generates hologram data according to the position of the viewing window of the hologram image and a hologram image to be reproduced, and provides the hologram data to the spatial light modulator. The hologram image formed by the spatial light modulator is viewable from a side of the spatial light modulator.

公开(公告)号：US20230418075A1

公开(公告)日：2023-12-28

申请号：US18466664

申请日：2023-09-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jong-Young Hong ,  Hongseok Lee ,  Young Kim

IPC: G02B27/01 ,  G02B27/44 ,  H04N9/31 ,  G02B30/40 ,  G02B27/00 ,  G02B27/42 ,  G02B5/18 ,  F21V8/00

CPC classification number: G02B27/0172 ,  G02B27/44 ,  H04N9/3152 ,  G02B30/40 ,  G02B27/0081 ,  G02B27/4205 ,  G02B5/18 ,  G02B6/0026 ,  G02B6/0016 ,  G02B2027/0178 ,  G02B2027/0174 ,  G02B2027/0123 ,  G02B2027/0125 ,  G02B5/1819 ,  G02B2005/1804

Abstract: A display apparatus capable of providing an expanded viewing window includes a light guide plate including an input coupler and an output coupler; and an image providing apparatus facing the input coupler to provide an image to the input coupler. The input coupler may include a plurality of sub input couplers configured to propagate the image provided from the image providing apparatus at different angles in the light guide plate.

公开(公告)号：US11789271B2

公开(公告)日：2023-10-17

申请号：US17107109

申请日：2020-11-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jong-Young Hong ,  Hongseok Lee ,  Young Kim

IPC: G02B27/01 ,  G02B27/44 ,  H04N9/31 ,  G02B30/40 ,  G02B27/00 ,  G02B27/42 ,  G02B5/18 ,  F21V8/00

CPC classification number: G02B27/0172 ,  G02B5/18 ,  G02B6/0016 ,  G02B6/0026 ,  G02B27/0081 ,  G02B27/4205 ,  G02B27/44 ,  G02B30/40 ,  H04N9/3152 ,  G02B5/1819 ,  G02B2005/1804 ,  G02B2027/0123 ,  G02B2027/0125 ,  G02B2027/0174 ,  G02B2027/0178

Abstract: A display apparatus capable of providing an expanded viewing window includes a light guide plate including an input coupler and an output coupler; and an image providing apparatus facing the input coupler to provide an image to the input coupler. The input coupler may include a plurality of sub input couplers configured to propagate the image provided from the image providing apparatus at different angles in the light guide plate.

公开(公告)号：US20220357703A1

公开(公告)日：2022-11-10

申请号：US17516142

申请日：2021-11-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Daeho Yang ,  Hongseok Lee ,  Wontaek Seo ,  Jungkwuen An ,  Jong-Young Hong

IPC: G03H1/08 ,  G02B27/01 ,  G03H1/22

Abstract: A holographic display apparatus includes: a light source; a spatial light modulator configured to modulate light from the light source according to an image to be displayed on an object plane; and a processor configured to generate a computer generated hologram (CGH) in which a phase value of hologram data to be displayed on a reference plane of the spatial light modulator is 0, the processor being configured to apply a light modulation signal based on the CGH to the spatial light modulator.

公开(公告)号：US20220179214A1

公开(公告)日：2022-06-09

申请号：US17526764

申请日：2021-11-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Changkun Lee ,  Seokil Moon ,  Geeyoung Sung ,  Hongseok Lee ,  Jong-Young Hong

IPC: G02B27/01 ,  F21V8/00 ,  G02B27/00

Abstract: A foveated display apparatus includes a first display panel configured to form a two-dimensional (2D) image; a second display panel configured to form a hologram image comprising a three-dimensional (3D) image; a light guide plate configured to transmit the 2D image at a first angle of view to an eye of a user; and a holographic optical element configured to transmit the hologram image at a second angle of view to the eye of the user, the second angle of view being smaller than the first angle of view.

公开(公告)号：US12055892B2

公开(公告)日：2024-08-06

申请号：US17547374

申请日：2021-12-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jong-Young Hong ,  Hoon Song ,  Juwon Seo

IPC: G03H1/22 ,  G02B27/00 ,  G02B27/01

CPC classification number: G03H1/2294 ,  G02B27/0093 ,  G02B27/0103 ,  G03H1/2205 ,  G02B2027/0174 ,  G03H2001/221 ,  G03H2222/12 ,  G03H2222/16 ,  G03H2226/05

Abstract: A holographic display apparatus includes a backlight unit having a light source configured to emit coherent light, a spatial light modulator configured to diffract incident light from the backlight unit and generate a holographic image, a beam deflector configured to change a traveling direction of the incident light from the backlight unit to change a focal position of the holographic image, an eye-tracking sensor configured to recognize positions of a viewer's eyeballs, and a controller configured to perform, in real time, calibration of the eye-tracking sensor and the beam deflector to focus the holographic image on the recognized positions of the viewer's eyeballs.

公开(公告)号：US11899399B2

公开(公告)日：2024-02-13

申请号：US17505823

申请日：2021-10-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hoon Song ,  Byonggwon Song ,  Yunhee Kim ,  Chilsung Choi ,  Jong-Young Hong

IPC: G03H1/22 ,  G02B5/30 ,  G02B27/00 ,  G02F1/29 ,  G06F3/01

CPC classification number: G03H1/2294 ,  G02B5/3083 ,  G02B27/005 ,  G02F1/29 ,  G03H1/2202 ,  G06F3/013 ,  G03H2223/17 ,  G03H2223/23 ,  G03H2225/00

Abstract: A beam deflection apparatus includes a first beam deflector that deflects light in a first direction and a second beam deflector that deflects light in a second direction perpendicular to the first direction, wherein the first beam deflector and the second beam deflector each include a first region for deflecting light of a first wavelength and a second region for deflecting light of a second wavelength, and a ratio of a spatial period of a signal applied to first drive electrodes arranged in the first region of the first beam deflector to the first wavelength is the same as a ratio of a spatial period of a signal applied to second drive electrodes arranged in the second region of the first beam deflector to the second wavelength.