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：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：US10545337B2

公开(公告)日：2020-01-28

申请号：US15337548

申请日：2016-10-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Geeyoung Sung ,  Yuntae Kim ,  Jungkwuen An ,  Hongseok Lee

IPC: G02B27/01 ,  G02B3/14 ,  G03H1/22

Abstract: A see-through holographic display apparatus includes a relay optical system expanding or reducing and transferring a hologram image generated by a spatial light modulator, a noise removal filter removing noise from diffraction light of the hologram image transferred through the relay optical system, and a light path converter changing at least one of a path of the diffraction light of the hologram image transferred from the relay optical system and a path of external light.

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：US10409064B2

公开(公告)日：2019-09-10

申请号：US15355827

申请日：2016-11-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongseok Lee ,  Geeyoung Sung ,  Yuntae Kim

IPC: G02B27/01 ,  G02B27/28 ,  G02B3/10 ,  G02B27/14 ,  G02C7/06

Abstract: See-through type display apparatuses and electronic apparatuses including the same are disclosed. A see-through type display apparatus may include a multipath optical member that transfers a plurality of images along a plurality of paths to an ocular organ of a user, and an anisotropic optical member that is arranged between the multipath optical member and the ocular organ of the user. The anisotropic optical member may exhibit characteristics which vary based on a polarization direction of incident light. For example, the anisotropic optical member may function as a lens with respect to light that propagates along a first path and function in a different manner than the lens with respect to light that propagates along a second path. The anisotropic optical member may function as a flat plate with respect to the light that propagates along the second path.

公开(公告)号：US10274755B2

公开(公告)日：2019-04-30

申请号：US15102400

申请日：2014-12-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seunghoon Han ,  Kanghee Won ,  Hongseok Lee ,  Jaeeun Jung

IPC: G02B5/30 ,  G02F1/01 ,  G02F1/29 ,  G03H1/02 ,  G03H1/08 ,  G03H1/22 ,  G02B27/22 ,  G02B27/28 ,  G02F1/1335 ,  G02F1/1347 ,  G02F1/13363

Abstract: Disclosed are a beam combining/splitting modulator, a display apparatus including the same, and a spatial light modulation method. The beam combining/splitting modulator includes a light modulator including first and second modulation regions for modulating light, a polarization converter disposed at a side of an emitting surface of the light modulator and including a first transmissive region for polarizing and converting light incident from the first modulation region to have a first polarization and a second transmissive region for polarizing and converting light incident from the second modulation region to have a second polarization, a birefringence modulator disposed at the side of an emitting surface of the polarization converter and switching between a first state in which birefringence occurs and a second state in which birefringence does not occur, and a polarizer disposed at the side of an emitting surface of the birefringence modulator.

公开(公告)号：US20190049732A1

公开(公告)日：2019-02-14

申请号：US15868145

申请日：2018-01-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Changkun Lee ,  Geeyoung Sung ,  Wontaek Seo ,  Hongseok Lee

IPC: G02B27/01

Abstract: An optical window system includes: a path conversion member configured to change a path of light of a first image from a first direction to a second direction, the path conversion member being translucent to light incident in the second direction; and a focusing member configured to focus the light of the first image in the second direction. Moreover, the path conversion member is configured to occupy a space according to an angle, defined by a first length of the path conversion member in the first direction and a second length of the path conversion member in the second direction, satisfying a predetermined condition, thereby reducing a system thickness and providing a wide field of view.

公开(公告)号：US10197810B2

公开(公告)日：2019-02-05

申请号：US15720599

申请日：2017-09-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wontaek Seo ,  Geeyoung Sung ,  Hongseok Lee ,  Yuntae Kim ,  Juwon Seo

IPC: G02B27/28 ,  G02B27/01 ,  G02B5/30 ,  G06T19/00 ,  G02B3/10 ,  G02B27/14

Abstract: Provided are display apparatuses and electronic apparatuses that include the display apparatuses. The display apparatus may include an optical system that transfers a first image and a second image to an ocular organ of a user. The optical system may include at least two polarization-dependent lenses. Each of the two polarization-dependent lenses may have a focal length that varies based on a polarization state of incident light. The two polarization-dependent lenses may have optically different characteristics with respect to the first and second images. The display apparatus may further include at least one wave plate and/or at least one polarizer provided between the two polarization-dependent lenses or outside thereof.

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.