公开(公告)号：US10690958B2

公开(公告)日：2020-06-23

申请号：US16103406

申请日：2018-08-14

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：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：US20200150587A1

公开(公告)日：2020-05-14

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 ,  F21V8/00 ,  G02B27/22

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：US10586094B2

公开(公告)日：2020-03-10

申请号：US15819038

申请日：2017-11-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jungwoo Kim ,  Hoon Song ,  Hongseok Lee

IPC: G06K9/00 ,  G06F3/042

Abstract: An apparatus and method for recognizing a fingerprint are provided. The apparatus includes a display device including a plurality of pixels configured to be turned on and off based on an image signal, a transparent cover disposed on the display device, the transparent cover including a touch surface through which a touch of a user is input, and a touch sensor configured to recognize a location of the touch through the touch surface. The apparatus further includes a fingerprint sensor configured to detect light that is reflected from the touch surface, based on the fingerprint of the user inputting the touch, and generate a signal, based on the light, and a controller configured to generate the image signal to turn on pixels corresponding to the location among the plurality of pixels, and determine a fingerprint profile of the fingerprint, based on the signal generated by the fingerprint sensor.

公开(公告)号：US20190317264A1

公开(公告)日：2019-10-17

申请号：US16374318

申请日：2019-04-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： German B. DUBININ ,  Sergey E. Dubynin ,  Aleksander V. Morozov ,  Andrey N. Putilin ,  Sergey S. Kopenkin ,  Yuriy P. Borodin ,  Jungkwuen An ,  Chilsung Choi ,  Hongseok Lee ,  Hoon Song ,  Sunil Kim

IPC: F21V8/00 ,  G09G3/22 ,  G02F1/1335

Abstract: Provided is a backlight unit including a light source emitting coherent light, a light guide plate propagating the light emitted by the light source, an input grating inputting the light from the light source into the light guide plate, an output grating provided on one surface of the light guide plate and diffracting light incident from inside the light guide plate and outputting the light, in a direction toward the outside of the light guide plate, a first recuperation element provided on one surface of the light guide plate and including a first recycle grating, and a second recuperation element provided opposite to the first recuperation element and directing, to the first recuperation element, incident light that is propagating inside 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.

公开(公告)号：US10088803B2

公开(公告)日：2018-10-02

申请号：US15000601

申请日：2016-01-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G03H1/22 ,  G03H1/04 ,  G03H1/08 ,  G03H1/26 ,  G03H1/30

Abstract: A holographic display apparatus includes: a light source configured to emit light; a spatial light modulator configured to sequentially generate hologram patterns for modulating the light and to sequentially reproduce frames of hologram images based on the hologram patterns; and a controller configured to provide hologram data signals to the spatial light modulator, the hologram data signals being used to sequentially generate the hologram patterns. The controller is configured to further provide, to the spatial light modulator, diffraction pattern data signals for forming periodic diffraction patterns for adjusting locations of the hologram images to be reproduced on a hologram image plane, the diffraction pattern data signals being configured to move the periodic diffraction patterns on the spatial light modulator along a predetermined direction for each of the frames.

公开(公告)号：US10048431B2

公开(公告)日：2018-08-14

申请号：US15174807

申请日：2016-06-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hong-seok Lee ,  Hoon Song ,  Jun-bo Yoon ,  Joo-hyung Lee

IPC: F21V8/00 ,  B29C33/38 ,  B29C33/42 ,  B29C35/08 ,  B29C37/00 ,  B29D11/00 ,  B29K83/00

Abstract: Provided are a light guide member, a lighting apparatus including the light guide member, and a method of fabricating the light guide member. The light guide member comprises: a body, which is formed as a transparent plate, including a first surface and a second surface facing the first surface; and a plurality of dimple type optical controllers formed beneath at least one of the first surface and the second surface and having reflective surfaces that reflect light proceeding between the first and second surfaces of the body toward at least one of the first and second surfaces.

公开(公告)号：US10036884B2

公开(公告)日：2018-07-31

申请号：US14031217

申请日：2013-09-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yun-hee Kim ,  Hoon Song ,  Jung-mok Bae ,  Kyu-hwan Choi ,  Yoon-sun Choi ,  Yong-joo Kwon

IPC: G02F1/00 ,  G02B26/00 ,  G02B27/22

CPC classification number: G02B26/005 ,  G02B27/2242

Abstract: A display including an electrowetting prism array is provided. The display includes: a light source, a 2-dimensional (2D) display for providing an image using light from the light source, a prism array in which a refractive power of one or more prisms of the prism array is adjustable in real time, and an optical element which increases a refraction of light transmitted therethrough. In the display, the optical element may be disposed in front of or behind the prism array. The optical element may be a convex lens, a Fresnel lens, a holographic optical element (HOE), a diffraction optical element (DOE), or a second electrowetting prism array. The convex lens may be a variable focus lens.

公开(公告)号：US09740168B2

公开(公告)日：2017-08-22

申请号：US14167754

申请日：2014-01-29

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Gee-young Sung ,  Hwi Kim ,  Hoon Song ,  Kang-hee Won ,  Hong-seok Lee

IPC: G02F1/01 ,  G03H1/22 ,  G02F1/1335 ,  G02B5/04 ,  G02B5/18 ,  G02B27/22 ,  G03H1/02

CPC classification number: G03H1/2286 ,  G02B5/045 ,  G02B5/1814 ,  G02B27/2214 ,  G02F1/133504 ,  G03H1/02 ,  G03H1/2294 ,  G03H2001/0224 ,  G03H2223/18 ,  G03H2223/19 ,  G03H2223/23 ,  G03H2225/33 ,  G03H2225/55

Abstract: A complex spatial light modulator and a three-dimensional (3D) image display apparatus including the complex spatial light modulator are provided. The complex spatial light modulator includes: a spatial light modulator that modulates a phase of light; a prism array including a plurality of prism units, each of the plurality of prism units including a first prism surface and second prism surface, where light from the spatial light modulator is incident on the prism array; and a polarization-independent diffracting element that diffracts light that has passed through the prism array.