公开(公告)号：US20250020923A1

公开(公告)日：2025-01-16

申请号：US18902115

申请日：2024-09-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chilsung Choi ,  Hoon Song ,  Hongseok Lee

IPC: G02B27/01 ,  F21V8/00 ,  G02B5/18 ,  G02B5/30 ,  G02B6/27 ,  G02B30/25 ,  G02B30/33

Abstract: Provided is a waveguide structure including an output grating, a polarization conversion element provided parallel to the output grating, and a polarization separation element provided between the output grating and the polarization conversion element, wherein the polarization separation element is configured to transmit, to the output grating, light having a first polarization direction among light incident on the polarization separation element, and reflect, to the polarization conversion element, light having a second polarization direction different from the light having the first polarization direction among the light incident on the polarization separation element.

公开(公告)号：US12092994B2

公开(公告)日：2024-09-17

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: G03H1/08 ,  G03H1/00 ,  G03H1/02 ,  G03H1/22 ,  G03H1/26

CPC classification number: G03H1/0005 ,  G03H1/02 ,  G03H1/2205 ,  G03H2001/0088 ,  G03H2001/0224

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：US11774752B2

公开(公告)日：2023-10-03

申请号：US17107290

申请日：2020-11-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G02B27/00 ,  G03H1/22

CPC classification number: G02B27/0068 ,  G03H1/2286 ,  G03H2001/221 ,  G03H2001/2234 ,  G03H2222/18

Abstract: A holographic display device includes a light source configured to emit light, the light including first light of a first wavelength, second light of a second wavelength, and third light of a third wavelength; a spatial light modulator configured to form a holographic pattern to modulate the light emitted from the light source and to produce a holographic image; and a focusing optical system configured to focus the holographic image. The focusing optical system includes a fixed-focus optical system having a fixed focal length, and a variable focus optical system having a focal length that is changed by electrical control. The fixed-focus optical system is configured to focus the first light of the first wavelength, the second light of the second wavelength, and the third light of the third wavelength on different positions, respectively, on an optical axis to cancel a chromatic aberration by the variable focus optical system.

公开(公告)号：US20220308526A1

公开(公告)日：2022-09-29

申请号：US17502316

申请日：2021-10-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyeonseung Yu ,  Hoon Song ,  Jungkwuen An ,  Hongseok Lee

IPC: G03H1/22

Abstract: A holographic display device is provided. The holographic display device includes a spatial light modulator for representing a partial complex domain and reproducing a hologram by diffracting light, and a processor for controlling the spatial light modulator. The processor controls the spatial light modulator by employing an algorithm for calculating hologram information according to the representation of the partial complex domain of the spatial light modulator.

公开(公告)号：US11119444B2

公开(公告)日：2021-09-14

申请号：US16514253

申请日：2019-07-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yunhee Kim ,  German B. Dubinin ,  Alexander V. Morozov ,  Sunil Kim ,  Hoon Song ,  Jungkwuen An ,  Young Kim ,  Hongseok Lee ,  Chilsung Choi

IPC: G03H1/22 ,  F21V8/00 ,  G02B27/09 ,  G02B27/14 ,  G02F1/29

Abstract: A backlight unit for a binocular-holographic display device and a holographic display device including the same are provided. The backlight unit includes a light source unit which outputs light, a first beam expansion unit which expands, in a first direction, the light output from the light source unit, a second beam expansion unit which expands, in a second direction perpendicular to the first direction, the light output from the first beam expansion unit, and a beam deflection unit which diffracts light incident on the first beam expansion unit. The holographic display device includes the backlight unit, a field lens, and a spatial light modulator.

公开(公告)号：US10775742B2

公开(公告)日：2020-09-15

申请号：US15271351

申请日：2016-09-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G03H1/08 ,  G03H1/26 ,  G03H1/22 ,  G06K9/00 ,  G06F3/01

Abstract: An apparatus and method for processing a holographic image. The apparatus calculates a first calculation result with respect to an image for the left eye and a first calculation result with respect to an image for the right eye and stores the results at different memory addresses of a storage. Thereafter, the apparatus calculates values of a waveform of light to be modulated by a spatial light modulator by performing a second calculation that uses all of the first calculation results stored in the storage. An image window of the image for the left eye and an image window of the image for the right eye are spatially separated from each other by the apparatus in a viewing window of a hologram image reproduced via the spatial light modulator.

公开(公告)号：US10656721B2

公开(公告)日：2020-05-19

申请号：US15374505

申请日：2016-12-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hoon Song ,  Yuntae Kim ,  Juwon Seo ,  Hongseok Lee ,  Chilsung Choi

IPC: G06F3/01 ,  H04N13/161 ,  H04N13/383 ,  H04N9/31 ,  G03H1/22 ,  G06K9/20 ,  H04N13/302 ,  H04N13/32 ,  G06K9/00 ,  G06F3/03 ,  G06T7/73 ,  G06T7/246 ,  G06F3/042 ,  G06T7/70 ,  G03H1/02 ,  G06F3/0481 ,  G06F3/0484 ,  G06T7/20 ,  H04N13/279 ,  G03H1/00

Abstract: An interactive 3D display apparatus and method are provided. The interactive 3D display apparatus includes a hand sensing module configured to acquire a hand image by detecting a hand of a user and a user interaction module configured to generate a virtual object adjustment parameter by analyzing user-intended information about the hand based on the hand image acquired by the hand sensing module and comparing an analysis result with predefined user scenarios, an image rendering module configured to set a scene according to the generated virtual object adjustment parameter, generate image data by rendering the set scene, and convert the generated image data into display data, and a 3D display configured to display a 3D image including a virtual object in which a change intended by the user has been reflected according to the display data.

公开(公告)号：US20200050146A1

公开(公告)日：2020-02-13

申请号：US16660887

申请日：2019-10-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yunhee Kim ,  German B. Dubinin ,  Alexander V. Morozov ,  Sunil Kim ,  Hoon Song ,  Jungkwuen An ,  Young kim ,  Hongseok Lee ,  Chilsung Choi

IPC: G03H1/22 ,  G02F1/29 ,  G02B27/14 ,  G02B27/09 ,  F21V8/00

Abstract: A backlight unit for a binocular-holographic display device and a holographic display device including the same are provided. The backlight unit includes a light source unit which outputs light, a first beam expansion unit which expands, in a first direction, the light output from the light source unit, a second beam expansion unit which expands, in a second direction perpendicular to the first direction, the light output from the first beam expansion unit, and a beam deflection unit which diffracts light incident on the first beam expansion unit. The holographic display device includes the backlight unit, a field lens, and a spatial light modulator.

公开(公告)号：US20200050145A1

公开(公告)日：2020-02-13

申请号：US16287493

申请日：2019-02-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young KIM ,  Hongseok Lee ,  Hoon Song ,  Jungkwuen An ,  Kanghee Won ,  Chilsung Choi

IPC: G03H1/04 ,  G02F1/1343 ,  G02F1/1335 ,  G02B6/12 ,  G02F1/133

Abstract: A focus modulation optical system and a holographic display device having the focus modulation optical system are disclosed. The holographic display device includes a light source configured to emit a plurality of color lights, a focus modulation optical system including at least one variable focus lens that is configured to change a focusing position of incident light by electrical control of the at least one variable focus lens based on a color of light incident on the variable focus lens, and a spatial light modulator configured to form a holographic image by diffracting light output from the focus modulation optical system.

公开(公告)号：US10416762B2

公开(公告)日：2019-09-17

申请号：US15370411

申请日：2016-12-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G03H1/02 ,  G06F3/01 ,  F21V5/00 ,  F21V23/00 ,  G02B27/01 ,  G09G3/3208 ,  G09G3/34 ,  G03H1/22 ,  G02B3/00 ,  F21Y115/00 ,  F21Y115/15

Abstract: A beam steering backlight unit provides a hologram image to multiple viewing positions and a holographic display apparatus includes the beam steering backlight unit. The backlight unit includes a light source array comprising a plurality of two-dimensionally arranged light sources and a micro lens array arranged to face the light source array and comprising a plurality of two-dimensionally arranged micro lenses. The light source array includes a plurality of light source blocks each corresponding to a respective one of the plurality of micro lenses, wherein a plurality of the light sources are arranged in each of the plurality of light source blocks. The light source array is configured to select and turn on only those light sources of the plurality of light sources respectively disposed in a same position in each of the plurality of light source blocks and turn off the other light sources.