公开(公告)号：US20230176445A1

公开(公告)日：2023-06-08

申请号：US17830977

申请日：2022-06-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byunggil JEONG ,  Sunil KIM ,  Junghyun PARK ,  Minkyung LEE

IPC: G02F1/29

CPC classification number: G02F1/292 ,  G02F2203/24 ,  G02F2203/50

Abstract: A spatial light modulator and an electronic apparatus including the spatial light modulator are provided. The spatial light modulator may include: a plurality of pixels configured to steer incident light; and a plurality of thermoelectric layers in which heat transfer with the plurality of pixels occurs. The plurality of pixels may include a plurality of grating structures.

公开(公告)号：US20220171186A1

公开(公告)日：2022-06-02

申请号：US17327281

申请日：2021-05-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wontaek SEO ,  Hongseok LEE ,  Sunil KIM ,  Seokil MOON ,  Bongsu SHIN ,  Daeho YANG ,  Changkun LEE

IPC: G02B27/01 ,  G02B26/08 ,  G02B27/30 ,  G02B27/00

Abstract: A display device includes a light source array including a plurality of light sources where at least one of the plurality of light sources is selectively driven, a spatial light modulator for modulating light from the light source array to form image light, a focusing optical system for focusing the image light formed by the spatial light modulator at a position in a predetermined eye box, a micro mirror array arranged in an optical path formed in the focusing optical system and including a plurality of mirror cells. The plurality of mirror cells are controlled to be in an ON state in that light is reflected in a direction toward an inside of the eye box or to be in an OFF state in that light is reflected in a direction toward an outside of the eye box.

公开(公告)号：US20210382314A1

公开(公告)日：2021-12-09

申请号：US17411940

申请日：2021-08-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wontaek SEO ,  Geeyoung SUNG ,  Sunil KIM ,  Bongsu SHIN ,  Changkun LEE ,  Hongseok LEE

IPC: G02B27/01 ,  G02B27/00

Abstract: A three-dimensional (3D) image display apparatus is provided. The apparatus includes a plurality of light sources; a spatial light modulator configured to modulate light from the plurality of light sources according to 3D image information; and a focusing optical system configured to focus an image formed by the spatial light modulator onto a focal plane. The plurality of light sources may be arranged such that multiple focal points, respectively corresponding to the plurality of light sources, are formed on the focal plane near a pupil of a user.

公开(公告)号：US20210271083A1

公开(公告)日：2021-09-02

申请号：US17038592

申请日：2020-09-30

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  MYONGJI UNIVERSITY INDUSTRY AND ACADEMIA COOPERATION

Inventor： Bongsu SHIN ,  Woojun HAN ,  Jaisoon KIM ,  Sunil KIM ,  Hongseok LEE

IPC: G02B27/01 ,  G02C7/08

Abstract: An anamorphic optical system and a display apparatus including the same are disclosed. The anamorphic optical system includes an illumination system having astigmatism, and first and second correction lenses that are provided to have tangential power and sagittal power respectively and correct the astigmatism in the illumination system. The first and second correction lenses are provided in which a difference between a distance from the first correction lens to a tangential image formed by the first correction lens and a distance from the second correction lens to a sagittal image formed by the second correction lens corresponds to a distance between the first correction lens and the second correction lenses, and at least one of the first correction lens and the second correction lens has an asymmetric stop to form the tangential image and the sagittal image on the same surface.

公开(公告)号：US20190113761A1

公开(公告)日：2019-04-18

申请号：US15937288

申请日：2018-03-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil KIM ,  Chilsung CHOI ,  Hoon SONG ,  Jungkwuen AN ,  Sunghoon LEE

IPC: G02B27/09 ,  G02B27/30 ,  F21V8/00

Abstract: A beam expander and a displays including the beam expander are provided. The beam expander includes a holographic optical element (HOE) configured to generate collimated light by diffracting incident light incident thereon from a light source that emits coherent light. The beam expander also includes a diffraction optical element that diffracts light received from the HOE. The light source and the HOE may face each other with the diffraction optical element therebetween. Both the light source and the HOE may be arranged on a side of the diffraction optical element. The light source may be arranged above or below the diffraction optical element.

公开(公告)号：US20190094359A1

公开(公告)日：2019-03-28

申请号：US16135874

申请日：2018-09-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil KIM ,  Byounglyong CHOI ,  Changgyun SHIN

IPC: G01S17/02 ,  G02B27/09 ,  G06T7/521

Abstract: Provided are an optical sensing system and an optical apparatus including the same. The optical sensing system may include a light output part configured to emit a laser beam to an object, and a sensing part configured to sense a laser beam emitted from the light output part and reflected from the object. The sensing part may include a photodetector and the active optical device located on an optical path between the photodetector and the object. The active optical device may actively control an orientation of a laser beam passing therethrough and may include a material layer having a refractive index which is changeable by application of an electrical signal.

公开(公告)号：US20180321492A1

公开(公告)日：2018-11-08

申请号：US16038410

申请日：2018-07-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jungkwuen AN ,  Geeyoung SUNG ,  Sunil KIM ,  Hongseok LEE ,  Chilsung CHOI

IPC: G02B27/01 ,  G02B27/22 ,  G02B27/00 ,  G03H1/22 ,  G03H1/08

CPC classification number: G02B27/0103 ,  G02B27/0093 ,  G02B27/225 ,  G02B2027/0134 ,  G03H1/2294 ,  G03H2001/0825 ,  G03H2001/2242 ,  G03H2001/2297 ,  G03H2222/34 ,  G03H2226/05 ,  H04N13/302 ,  H04N13/366 ,  H04N13/376 ,  H04N13/398

Abstract: A holographic display apparatus includes a spatial light modulator configured to generate hologram patterns to modulate light; an illuminator configured to emit the light to the spatial light modulator; and a controller configured to control operations of the spatial light modulator and the illuminator, the spatial light modulator being configured to generate, from among the hologram patterns, a first hologram pattern and a second hologram pattern according to the control operations of the controller, the first hologram pattern and the second hologram pattern being configured to form a first hologram image and a second hologram image having different viewpoints, and the controller being configured to set a first phase modulation value of the first hologram pattern and a second phase modulation value of the second hologram pattern to be different from each other such that hologram images having different viewpoints are formed.

公开(公告)号：US20180173057A1

公开(公告)日：2018-06-21

申请号：US15704193

申请日：2017-09-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chilsung CHOI ,  Sunil KIM ,  Geeyoung SUNG ,  Hoon SONG ,  Jungkwuen AN ,  Hongseok LEE

IPC: G02F1/1335 ,  G02B5/32 ,  G06F3/01 ,  G03H1/22

CPC classification number: G02F1/133602 ,  G02B5/32 ,  G02B6/0026 ,  G02B6/0031 ,  G02B6/0053 ,  G02F1/133553 ,  G02F1/133615 ,  G02F1/133621 ,  G03H1/22 ,  G03H1/2286 ,  G03H1/2294 ,  G03H2001/2242 ,  G03H2001/2292 ,  G03H2001/2297 ,  G03H2210/30 ,  G03H2222/18 ,  G03H2223/16 ,  G03H2223/23 ,  G03H2226/05 ,  G06F3/013

Abstract: Provided is a backlight unit having high optical efficiency and a holographic display device including the backlight unit. The backlight unit includes a light source unit configured to provide a light beam, a first beam expander configured to mix the light beam provided from the light source unit, expand the light beam in a first direction, and output the mixed and expanded light beam as white light, and a second beam expander configured to expand the white light output from the first beam expander in a second direction perpendicular to the first direction and output the expanded white light as surface light.

公开(公告)号：US20180059507A1

公开(公告)日：2018-03-01

申请号：US15686935

申请日：2017-08-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil KIM ,  Duhyun LEE ,  Changbum LEE ,  Byounglyong CHOI

IPC: G02F1/313

CPC classification number: G02F1/3137 ,  G02F1/2955 ,  G02F2001/311 ,  G02F2201/06

Abstract: A laser beam steering device and a system including the same are provided. The laser beam steering device includes a waveguide through which a laser beam passes, and a cladding layer disposed on the waveguide. The cladding layer has a refractive index which changes according to an electrical signal applied thereto and thus a phase of a laser beam passing through the waveguide may be changed.

公开(公告)号：US20170153527A1

公开(公告)日：2017-06-01

申请号：US15355710

申请日：2016-11-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil KIM ,  Changgyun SHIN ,  Jungwoo KIM ,  Duhyun LEE

IPC: G02F1/29

CPC classification number: G02F1/29 ,  B82Y20/00 ,  G02F1/133602 ,  G02F1/292 ,  G02F2001/133614 ,  G02F2201/34 ,  G02F2202/10 ,  G02F2202/36 ,  G02F2203/24 ,  Y10S977/932

Abstract: Provided are a beam steering device and a system including the same. The beam steering device includes a conversion layer having a refractive index which is variable via electrical control and a plurality of nanoantenna pattern layers stacked on the conversion layer. The refractive index of the conversion layer is electrically changed by a driver.