公开(公告)号：US20200272023A1

公开(公告)日：2020-08-27

申请号：US16529328

申请日：2019-08-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kanghee WON ,  Young Kim ,  Byonggwon Song ,  Hoon Song ,  Jungkwuen An ,  Hongseok Lee

IPC: G02F1/29

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.

公开(公告)号：US10663638B2

公开(公告)日：2020-05-26

申请号：US15000183

申请日：2016-01-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongseok Lee ,  Geeyoung Sung ,  Joonyong Park ,  Hoon Song ,  Bongsu Shin ,  Yoonsun Choi

IPC: F21V8/00 ,  H04N13/32 ,  H04N13/356

Abstract: A two-dimensional (2D)/three-dimensional (3D) switchable backlight unit and an image display apparatus using the 2D/3D switchable backlight unit are provided. The 2D/3D switchable backlight unit includes: a light source unit; a first light guide plate, within which light from the light source unit is totally internally reflected; and a plurality of refraction patterns, each having a trapezoidal form. The light source unit may include a first light source and a second light source.

公开(公告)号：US10321159B2

公开(公告)日：2019-06-11

申请号：US15218243

申请日：2016-07-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hojung Kim ,  Hoon Song ,  Hongseok Lee

IPC: G06F17/14 ,  H04N19/60 ,  H04N19/42 ,  G03H1/08

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.

公开(公告)号：US20180181065A1

公开(公告)日：2018-06-28

申请号：US15819485

申请日：2017-11-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jungkwuen An ,  Hoon Song ,  Sunil Kim ,  Hongseok Lee ,  Joonyong Park ,  Chilsung Choi

IPC: G03H1/22 ,  G03H1/00 ,  G03H1/08 ,  G03H1/28

CPC classification number: G03H1/2294 ,  G03H1/0005 ,  G03H1/0866 ,  G03H1/2205 ,  G03H1/2286 ,  G03H1/28 ,  G03H2001/0088 ,  G03H2001/0883 ,  G03H2001/221 ,  G03H2001/2223 ,  G03H2001/2292 ,  G03H2225/12 ,  G03H2225/60

Abstract: Provided are holographic displays and operating methods of the holographic display. The holographic display includes a backlight portion configured to emit light for displaying an image; a deflector configured to control a direction at which the image is displayed; a lens portion configured to control a location where the image to be displayed is formed to match a location that satisfies a diffraction condition; and a panel portion configured to display a 3D image by combining the image to be displayed with an interference pattern generated with respect to an overlapped hologram.

公开(公告)号：US09658378B2

公开(公告)日：2017-05-23

申请号：US14180414

申请日：2014-02-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hoon Song ,  Gee-young Sung ,  Kang-hee Won ,  Hong-seok Lee

IPC: G02B5/32 ,  G03H1/22 ,  G02B27/22 ,  G03H1/04

CPC classification number: G02B5/32 ,  G02B27/225 ,  G03H1/041 ,  G03H1/2286 ,  G03H1/2294 ,  G03H2001/0434 ,  G03H2001/0439 ,  G03H2001/221 ,  G03H2001/2242 ,  G03H2001/2615 ,  G03H2210/30 ,  G03H2222/18 ,  G03H2222/34 ,  G03H2223/17 ,  G03H2223/24

Abstract: An illumination unit is provided including a coherent light source; a projection optical element which focuses a light beam emitted from the coherent light source onto a focal plane; and a holographic optical element interposed between the coherent light source and the projection optical element, and having an interference pattern formed thereon. The holographic optical element diffracts the light beam emitted from the coherent light source and emits the diffracted light to the projection optical element. Here, the interference pattern on the holographic optical element may have information that diffracts the light beam and thereby cancels a diffraction of the light beam due to an aberration of the projection optical element.

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.

公开(公告)号：US11796960B2

公开(公告)日：2023-10-24

申请号：US17011080

申请日：2020-09-03

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

Inventor： Yunhee Kim ,  Hwi Kim ,  Hoon Song ,  Soobin Kim ,  Hongseok Lee

IPC: G02B5/18 ,  G03H1/22

CPC classification number: G03H1/2294 ,  G03H1/2205 ,  G03H2001/2239 ,  G03H2222/22 ,  G03H2223/15 ,  G03H2223/18 ,  G03H2223/19 ,  G03H2223/24 ,  G03H2225/23

Abstract: Provided is a holographic display apparatus capable of providing an expanded viewing window when reproducing a holographic image via an off-axis technique. The holographic display apparatus includes a spatial light modulator comprising a plurality of pixels arranged two-dimensionally; and an aperture enlargement film configured to enlarge a beam diameter of a light beam coming from each of the plurality of pixels of the spatial light modulator. The beam diameter of each light beam enlarged by the aperture enlargement film may be greater than the width of an aperture of each pixel of the spatial light modulator.

公开(公告)号：US11747620B2

公开(公告)日：2023-09-05

申请号：US16810403

申请日：2020-03-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chilsung Choi ,  Hoon Song ,  Hongseok Lee

IPC: G02B27/01 ,  F21V8/00

CPC classification number: G02B27/0172 ,  G02B6/0065 ,  G02B6/0078 ,  G02B2027/0174 ,  G02B2027/0178

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.

公开(公告)号：US11727659B2

公开(公告)日：2023-08-15

申请号：US17679964

申请日：2022-02-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hojung Kim ,  Yongkyu Kim ,  Hoon Song ,  Hongseok Lee

IPC: G06T19/20 ,  G06F17/14 ,  H04N13/271 ,  H04N13/161 ,  G03H1/08 ,  G06T7/262 ,  H04N7/18

CPC classification number: G06T19/20 ,  G03H1/0808 ,  G06F17/142 ,  G06T7/262 ,  H04N7/183 ,  H04N13/161 ,  H04N13/271 ,  G03H2210/45 ,  G06T2207/10024 ,  G06T2207/10028 ,  G06T2207/20056

Abstract: A method for processing a three-dimensional (3D) image includes acquiring a frame of a color image and a frame of a depth image, and generating a frame by combining the acquired frame of the color image with the acquired frame of the depth image. The generating of the frame includes combining a line of the color image with a corresponding line of the depth image.