公开(公告)号：US12099276B2

公开(公告)日：2024-09-24

申请号：US17903687

申请日：2022-09-06

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

Inventor： Yunhee Kim ,  Hwi Kim ,  Sehwan Na ,  Hoon Song ,  Hongseok Lee

IPC: G02F1/13363 ,  G02B27/01 ,  G02F1/1335 ,  G02F1/1343 ,  G03H1/22 ,  G02F1/1337 ,  G02F1/1368 ,  G02F1/139

CPC classification number: G02F1/133633 ,  G02B27/0172 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/133636 ,  G02F1/133638 ,  G02F1/134345 ,  G03H1/2294 ,  G02B2027/0174 ,  G02B2027/0178 ,  G02F1/1337 ,  G02F1/1368 ,  G02F1/1396 ,  G02F2413/01 ,  G03H2223/15 ,  G03H2223/20 ,  G03H2223/22 ,  G03H2225/22 ,  G03H2225/34

Abstract: A complex light modulator including a first polarization plate, a second polarization plate provided, an amplitude modulator provided between the first polarization plate and the second polarization plate, a phase modulator provided between the amplitude modulator and the second polarization plate, and color filters provided between the amplitude modulator and the phase modulator.

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：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：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：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：US10284826B2

公开(公告)日：2019-05-07

申请号：US15695546

申请日：2017-09-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunghyun Nam ,  Yunhee Kim ,  Sookyoung Roh ,  Hongkyu Park ,  Seokho Yun

IPC: H04N5/33 ,  H04N9/04 ,  H01L27/146

Abstract: An image sensor, and an apparatus and method of acquiring an image by using the image sensor are provided. The image sensor includes a color filter having an array of a plurality of types of color filter elements, where each of the color filter elements transmits visible light in a certain wavelength band and blocks visible light outside the certain wavelength band; a photoelectric conversion cell array that detects light that has been transmitted through the color filter; and a modulator, disposed on the photoelectric conversion cell array, which changes a rate of light transmitted to the photoelectric conversion cell array based on an applied voltage.

公开(公告)号：US12124216B2

公开(公告)日：2024-10-22

申请号：US17371415

申请日：2021-07-09

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

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

IPC: G03H1/22 ,  G02B1/00 ,  G02B27/09

CPC classification number: G03H1/2286 ,  G02B1/005 ,  G02B27/09 ,  G02B27/0944 ,  G03H1/2205 ,  G03H2001/221

Abstract: A beam expanding film includes a first material layer and a photonic crystal layer that expands a width of incident light and emits light having an expanded width. The photonic crystal layer includes a first material layer and a plurality of second material layers buried in the first material layer. A holographic display apparatus includes a backlight unit configured to provide coherent collimated light; a beam expanding film described above and facing the backlight unit; a flat panel arranged between the backlight unit and the beam expanding film to provide a hologram; and a lens configured to focus a holographic image on a space.

公开(公告)号：US11262700B2

公开(公告)日：2022-03-01

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: G02B5/18 ,  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：US10656322B2

公开(公告)日：2020-05-19

申请号：US15413526

申请日：2017-01-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yunhee Kim ,  Hoon Song ,  Sunil Kim ,  Seokho Song

IPC: F21V8/00 ,  G03H1/22 ,  G02B6/34 ,  G02B30/27

Abstract: A coherent backlight unit and a 3D image display device including the coherent backlight unit are provided. The coherent backlight unit includes a light source, a light guide plate, a first diffraction grating, a second diffraction grating, and a reflective optical element. The light source irradiates a coherent light and the reflective optical element reflects the coherent light that is propagating toward one of the side surfaces from the inner side of the light guide plate toward the inner side of the light guide plate.

公开(公告)号：US20190147809A1

公开(公告)日：2019-05-16

申请号：US16243197

申请日：2019-01-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young Kim ,  Yunhee Kim ,  Hoon Song

IPC: G09G3/34 ,  G09G3/36 ,  G02F1/29 ,  G02B27/22

Abstract: A light deflector includes a first light deflecting member disposed on a transparent substrate and has a refractive index that varies depending on a magnitude of an electric field applied thereto. The light deflector may adjust the refractive index by applying electric fields differently according to regions of the first light deflecting member or time divisions. The light deflector may have a smaller size than a light deflector including an optical device, and may easily adjust the refractive index.