公开(公告)号：US11661927B2

公开(公告)日：2023-05-30

申请号：US17477829

申请日：2021-09-17

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Bongsu Shin ,  Jesung Koh ,  Hongseok Lee ,  Dongjin Kim ,  Baekgyeom Kim

IPC: F03G7/06

CPC classification number: F03G7/06143 ,  F03G7/0636 ,  F03G7/0665

Abstract: A driving device includes a first driving element and a first flexible structure. The first driving element includes a first wire extending in a first direction and includes a shape memory alloy. The first flexible structure has a certain width in a second direction perpendicular to the first direction, and when the first wire contracts in the first direction, the first flexible structure has a height increasing in a third direction perpendicular to both the first direction and the second direction. The driving device further includes a second driving element including a second wire and a second flexible structure, the second wire extending in the first direction and including a shape memory alloy. The second flexible structure has a certain width in the second direction, and when the second wire contracts in the first direction, the second flexible structure has a height increasing in the third direction.

公开(公告)号：US20230133574A1

公开(公告)日：2023-05-04

申请号：US18090985

申请日：2022-12-29

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Korea University Research and Business Foundation

Inventor： Yuntae KIM ,  Sanghoon Sull ,  Geeyoung Sung ,  Hongseok Lee ,  Myungjae Jeon

IPC: G06V40/20 ,  G06F3/01 ,  G06N3/049 ,  G06T19/00

Abstract: An augmented reality (AR) device and a method of predicting a pose in the AR device is provided. In the augmented reality (AR) device inertial measurement unit (IMU) values corresponding to the movement of the AR device are obtained at an IMU rate, intermediate 6-degrees of freedom (6D) poses of the AR device are estimated based on the IMU values and images around the AR device via a visual-inertial simultaneous localization and mapping (VI-SLAM) module, and a pose prediction model for predicting relative 6D poses of the AR device is generated by performing learning by using a deep neural network.

公开(公告)号：US11567451B2

公开(公告)日：2023-01-31

申请号：US17357180

申请日：2021-06-24

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Korea University Research and Business Foundation, Sejong Campus

Inventor： Hoon Song ,  Hwi Kim ,  Jungkwuen An ,  Hongseok Lee ,  Yunhee Kim ,  Chilsung Choi

IPC: G03H1/22 ,  G06T3/40

Abstract: A holographic display apparatus capable of providing an expanded viewing window and a display method are provided. The holographic display apparatus includes an image processor configured to provide computer generated hologram (CGH) data to a spatial light modulator, wherein the image processor is further configured to generate a hologram data array comprising information of the holographic image to be reproduced at the first resolution or a resolution less than the first resolution, perform an off-axis phase computation on the hologram data array at the second resolution, and then, generate the CHG data at the first resolution.

公开(公告)号：US11561508B2

公开(公告)日：2023-01-24

申请号：US17474595

申请日：2021-09-14

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：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：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

IPC: G03H1/02 ,  G03H1/20 ,  G03H1/22

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.

公开(公告)号：US20220299939A1

公开(公告)日：2022-09-22

申请号：US17536511

申请日：2021-11-29

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 ,  G06T5/00 ,  G06T5/50 ,  G06T5/20

Abstract: Provided are holographic display systems and methods for generating a hologram by compensating for aberrations of a holographic display device. The holographic display system may include a holographic display device and a hologram generating device. The hologram generating device may generate a hologram by propagating hologram segments, using kernels generated by modeling each aberration corresponding to each of hologram plane segments to compensate for aberrations.

公开(公告)号：US11409114B2

公开(公告)日：2022-08-09

申请号：US17170269

申请日：2021-02-08

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Bongsu Shin ,  Jesung Koh ,  Geeyoung Sung ,  Hongseok Lee ,  Dongjin Kim ,  Baekgyeom Kim

IPC: G02B27/01 ,  G02B30/34 ,  H04N13/344 ,  H04N13/366 ,  H04N13/128

Abstract: Provided is an image display device including a display element configured to modulate light to form an image; a light transfer unit configured to transmit the image formed by the display element to eyes of an observer, the light transfer unit comprising a focusing member; and a driver configured to drive the display element to change a position of the display element, the driver including: a first actuator comprising a deformable wire; a housing that fixes a first end and a second end of the deformable wire; and an operating structure through which the deformable wire is routed, wherein the operating structure is configured move the display element in a first direction in conjunction with a length variation of the deformable wire, and the operating structure includes an elastic structure configured to prevent tilt with respect to an axis in the first direction.

公开(公告)号：US20220187599A1

公开(公告)日：2022-06-16

申请号：US17370667

申请日：2021-07-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Changkun LEE ,  Seokil Moon ,  Geeyoung Sung ,  Bongsu Shin ,  Hongseok Lee

IPC: G02B27/01 ,  F21V8/00 ,  G02B5/00 ,  G02B5/32 ,  G02B1/00

Abstract: A waveguide type display apparatus is provided. This waveguide type display apparatus includes a waveguide through which an image proceeds and a leakage image reducer configured to reduce emission of a leakage image leaked from the waveguide without total internal reflection in the waveguide, from among images, to the outside by a volume grating.

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.