公开(公告)号：US11662511B2

公开(公告)日：2023-05-30

申请号：US17369103

申请日：2021-07-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Aleksander V. Morozov ,  Andrey N. Putilin ,  Sergey E. Dubynin ,  Chilsung Choi ,  German B. Dubinin ,  Hongseok Lee ,  Hoon Song

IPC: F21V8/00 ,  G02B27/09 ,  G02B5/32 ,  G02B27/42

CPC classification number: G02B6/0025 ,  G02B5/32 ,  G02B27/0944 ,  G02B27/425

Abstract: A beam expander includes first and second optical elements spaced apart from each other, and a light diffuser having an angular aperture that diffuses incident light through the angular aperture, wherein the first optical element in-couples the diffused light such that light exiting the first optical element has a first cross-sectional shape and light having a second cross-sectional shape different from the first cross-sectional shape is incident on the second optical element, and the second optical element out-couples light incident from the first optical element.

公开(公告)号：US20220299937A1

公开(公告)日：2022-09-22

申请号：US17574811

申请日：2022-01-13

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

Inventor： Yunhee KIM ,  Hwi KIM ,  Jonghyun Lee ,  Hoon Song

IPC: G03H1/00 ,  G03H1/02 ,  G03H1/22

Abstract: Provided is a complex light modulator including a phase modulator, and an amplitude modulator, wherein the phase modulator and the amplitude modulator are configured to generate a first complex pixel having first complex light modulation characteristics and a second complex pixel having second complex light modulation characteristics, wherein the first complex pixel includes first sub-complex pixels that are provided in a 3×3 format and are configured to implement the first complex light modulation characteristics, wherein the second complex pixel includes second sub-complex pixels that are provided in a 3×3 format and are configured to implement the second complex light modulation characteristics, and wherein the first complex pixel and the second complex pixel respectively include a first overlapping pixel that is included in the first sub-complex pixels and the second sub-complex pixels.

公开(公告)号：US11366427B2

公开(公告)日：2022-06-21

申请号：US16381195

申请日：2019-04-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chilsung Choi ,  Hoon Song ,  Jungkwuen An ,  Changkun Lee ,  Hongseok Lee

IPC: G03H1/22 ,  G02B30/26 ,  F21V8/00

Abstract: A backlight unit and a holographic display apparatus including the same are provided. The backlight unit includes a light guide plate and a uniformity changing element. The uniformity changing element has a light-incident surface and a light-exiting surface facing the light-incident surface, and the uniformity changing element receives the light output from the light guide plate through the light-incident surface, changes uniformity of the received light from the light guide plate and outputs the received light with the change in the uniformity of the received light through the light-exiting surface.

公开(公告)号：US11320784B2

公开(公告)日：2022-05-03

申请号：US16717348

申请日：2019-12-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young Kim ,  Wontaek Seo ,  Jungkwuen An ,  Kanghee Won ,  Hongseok Lee ,  Hoon Song ,  Chilsung Choi

IPC: G03H1/16 ,  G03H1/08 ,  G03H1/04 ,  G03H1/22

Abstract: Provided are methods of processing a holographic image and apparatuses using the methods. A method includes obtaining image data with respect to a three-dimensional (3D) object, obtaining interference patterns in a computer-generated hologram (CGH) plane by performing a Fourier transform on the image data, and generating a CGH with respect to the 3D object based on the interference patterns, wherein the Fourier transform is performed based on a focal length of an eye lens of an observer.

公开(公告)号：US10915001B2

公开(公告)日：2021-02-09

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 ,  G02B30/00 ,  H01C1/14 ,  H01C1/16

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：US10884171B2

公开(公告)日：2021-01-05

申请号：US16101025

申请日：2018-08-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young Kim ,  Jungkwuen An ,  Hoon Song ,  Kanghee Won

IPC: G02B5/32 ,  G02F1/1343 ,  G02F1/13357 ,  G02B27/09 ,  G02B5/30 ,  G03H1/22

Abstract: A beam deflector and a holographic three-dimensional image display apparatus employing the same are provided. The beam deflector deflects light through two stages by a first beam deflector that deflects the light in a first moving direction making an angle with a horizontal direction and a vertical direction, such that the deflected light is oriented to a first location, and a second beam deflector that deflects the light incident from the first beam deflector such that the light is deflected in a second moving direction making an angle with the horizontal direction and the vertical direction at the first location and is oriented to a second location.

公开(公告)号：US10795070B2

公开(公告)日：2020-10-06

申请号：US15678516

申请日：2017-08-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yunhee Kim ,  Hoon Song ,  Joonyong Park ,  Geeyoung Sung ,  Hongseok Lee ,  Chilsung Choi

IPC: F21V8/00 ,  G03H1/22 ,  G02B30/26

Abstract: Provided are a backlight unit and a holographic display apparatus including the same. The backlight unit includes a light guide plate; an input coupler configured to guide light into the light guide plate; a light deflector configured to deflect light emitted from the input coupler and guide the deflected light to propagate within the light guide plate. The light deflector is disposed on a region of the light guide plate which does not overlap with an optical path of light incident on the input coupler. The backlight unit also includes an output coupler configured to emit the light, having been propagated within the light guide plate, to an outside of the light guide plate.

公开(公告)号：US10788727B2

公开(公告)日：2020-09-29

申请号：US15809569

申请日：2017-11-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young Kim ,  Yunhee Kim ,  Hoon Song ,  Kanghee Won ,  Yeonhee Kim ,  Kideok Bae ,  Hongseok Lee

IPC: G02F1/29 ,  G02F1/31 ,  G02B30/00 ,  G02B30/22 ,  G02B30/27

Abstract: A liquid crystal light deflector includes a first electrode layer including a plurality of pattern electrodes arranged with a constant pitch in a first direction on a first substrate, a first alignment layer covering the first electrode layer and having a plurality of concave portions formed on an upper surface thereof and extending in parallel to a second direction perpendicular to the first direction, a liquid crystal layer including a plurality of liquid crystal molecules each having a long diameter substantially parallel to the concave portions on the first alignment layer, a second electrode layer, which is a common electrode, disposed on the liquid crystal layer, and a second substrate disposed on the second electrode layer.

公开(公告)号：US10783717B2

公开(公告)日：2020-09-22

申请号：US15455400

申请日：2017-03-10

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

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.

公开(公告)号：US10775540B2

公开(公告)日：2020-09-15

申请号：US15053838

申请日：2016-02-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hoon Song ,  Wontaek Seo ,  Hongseok Lee ,  Juwon Seo

IPC: H04N13/00 ,  G02B5/32 ,  G03H1/22 ,  G03H1/08 ,  H04N13/139 ,  H04N13/302 ,  H04N13/32 ,  H04N13/398 ,  H04N13/366 ,  H04N13/354 ,  H04N13/305 ,  H04N13/376

Abstract: A method of forming a light modulating signal for displaying a 3D includes preparing a plurality of data sets for 2D image data with different viewpoints; imposing a phase value the plurality of data sets, by which each of the 2D images is seen at a corresponding viewpoint; and superposing the 2D images.