公开(公告)号：US12078910B2

公开(公告)日：2024-09-03

申请号：US17324489

申请日：2021-05-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kanghee Won ,  Young Kim ,  Jungkwuen An ,  Hongseok Lee

IPC: G02F1/29 ,  G02B27/00 ,  G02B30/00 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/137 ,  G03H1/00 ,  G03H1/22

CPC classification number: G02F1/29 ,  G02B27/0093 ,  G02B30/00 ,  G02F1/133776 ,  G02F1/134381 ,  G02F1/13706 ,  G02F1/292 ,  G03H1/0005 ,  G03H1/2294 ,  G02F2203/24 ,  G03H2001/0088

Abstract: A beam deflector includes a first electrode layer including a plurality of line electrodes extending in a first direction and arranged parallel to each other in a second direction crossing the first direction; a second electrode layer separated from the first electrode layer by a predetermined distance to face the first electrode layer; and a deflection layer between the first electrode layer and the second electrode layer and having a plurality of optically anisotropic molecules controlled by an electric field formed between the first electrode layer and the second electrode layer. Each of the optically anisotropic molecules has an ellipse shape having a major axis and a minor axis, wherein the major axis is arranged to head for the first direction.

公开(公告)号：US11262614B2

公开(公告)日：2022-03-01

申请号：US16883596

申请日：2020-05-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G02F1/1335 ,  G02F1/13363 ,  G02B5/30 ,  G03H1/22 ,  G02F1/29 ,  G02B30/25 ,  G02B30/56

Abstract: A beam deflector includes a first wavelength selective polarizer configured to convert a polarization state of light in a first wavelength band into a first polarization state, a first liquid crystal deflector including liquid crystal molecules and an optical path change surface to deflect light incident from the first wavelength selective polarizer, and a controller configured to control the first liquid crystal deflector to adjust an angle of the first optical path change surface.

公开(公告)号：US10585330B2

公开(公告)日：2020-03-10

申请号：US15863453

申请日：2018-01-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young Kim ,  Alexander V. Morozov ,  Hoon Song ,  Kanghee Won ,  Hongseok Lee

IPC: G02F1/31 ,  G02B27/22 ,  G02F1/1343

Abstract: A liquid crystal light deflector includes a first electrode layer including line electrodes, a second electrode layer including a common electrode, and a liquid crystal layer that forms an electrical prism using liquid crystal molecules according to an electric field formed between the first and second electrode layers. The orientations of the liquid crystal molecules may be reset by an electric field formed between line electrodes of adjacent channels within the first electrode layer. A method of deflecting light includes controlling the first electrode layer and the second electrode layer to reset the orientation of the liquid crystal molecules prior to forming an electrical prism in the liquid crystal layer.

公开(公告)号：US20200012092A1

公开(公告)日：2020-01-09

申请号：US16233980

申请日：2018-12-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G02B27/00 ,  G02B7/09 ,  G03H1/22

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：US11243449B2

公开(公告)日：2022-02-08

申请号：US17167872

申请日：2021-02-04

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：US11144010B2

公开(公告)日：2021-10-12

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 ,  G02B6/12 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/1343

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：US10895798B2

公开(公告)日：2021-01-19

申请号：US16121392

申请日：2018-09-04

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Young Kim ,  Kanghee Won ,  Himchan Park ,  Jinwook Burm ,  Hoon Song ,  Hongseok Lee

IPC: G02F1/29 ,  G03H1/00

Abstract: A beam deflector, a holographic display device including the beam deflector, and a method of driving the beam deflector are provided. The beam deflector includes first electrodes spaced apart from each other on a first substrate, second electrodes spaced apart from each other on a second substrate, a liquid crystal layer between the first substrate and the second substrate, and a controller configured to cause active prisms to be formed in the liquid crystal layer and to form a floating zone by turning off a voltage of at least one of the first electrode and the second electrode disposed between adjacent ones of the active prisms.

公开(公告)号：US20210003967A1

公开(公告)日：2021-01-07

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 ,  G03H1/22 ,  G03H1/04

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：US10884240B2

公开(公告)日：2021-01-05

申请号：US16233980

申请日：2018-12-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G02B27/00 ,  G03H1/22

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：US09897733B2

公开(公告)日：2018-02-20

申请号：US14614912

申请日：2015-02-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seunghoon Han ,  Kanghee Won ,  Hongseok Lee

IPC: G02F1/19 ,  G03H1/22 ,  G02B5/30 ,  G02B27/22 ,  G02F1/1343 ,  B82Y20/00 ,  G03H1/02

CPC classification number: G02B5/30 ,  B82Y20/00 ,  G02B5/3058 ,  G02B27/22 ,  G02B27/2214 ,  G02F1/134363 ,  G02F1/19 ,  G03H1/2294 ,  G03H2001/0224 ,  G03H2225/22 ,  Y10S977/952

Abstract: A spatial light modulator including an electrode having a nano-antenna structure, and a display apparatus including the spatial light modulator are provided. The spatial light modulator includes a refractive index changing layer, and a pixel electrode and a common electrode which are configured to apply an electric field to the refractive index changing layer, and at least one of the pixel electrode and the common electrode include a nano-antenna pattern structure configured to resonate light.