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151.发明授权公开(公告)号：US10895798B2
公开(公告)日：2021-01-19
申请号：US16121392
申请日：2018-09-04
Inventor： Young Kim , Kanghee Won , Himchan Park , Jinwook Burm , Hoon Song , Hongseok Lee
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.
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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
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.
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公开(公告)号：US10884376B2
公开(公告)日：2021-01-05
申请号：US16415741
申请日：2019-05-17
Applicant: SAMSUNG ELECTRONICS CO., LTD. , KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Geeyoung Sung , Joonku Hahn , Wontaek Seo , Hongseok Lee
Abstract: A holographic display apparatus capable of steering a location of a viewing window according to a location of an observer is disclosed. The holographic display apparatus includes a light source; a spatial light modulator configured to modulate incident light and thereby reproduce the holographic image; a spatial filter configured to transmit only the holographic image; an eye tracker configured to track a pupil location of an observer; and a controller configured to adjust locations of the light source and the spatial filter in response to a change in the pupil location of the observer received from the eye tracker. The controller is configured to move the light source and the spatial filter simultaneously in the same direction by the same distance.
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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
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.
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155.发明授权公开(公告)号：US10852559B2
公开(公告)日：2020-12-01
申请号：US15946282
申请日：2018-04-05
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Chilsung Choi , Hoon Song , Jungkwuen An , Sunil Kim , Sunghoon Lee , Hongseok Lee
Abstract: Provided are a light guide plate, a backlight unit, and a holographic display apparatus including the backlight unit. The backlight unit includes a light source and a light guide plate including two or more layers configured to guide light from the light source, wherein the two or more layers are configured to control a ratio of light transmitted therethrough to light reflected thereby.
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Patent Agency Ranking
公开(公告)号：US20200272023A1
公开(公告)日：2020-08-27
申请号：US16529328
申请日：2019-08-01
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kanghee WON , Young Kim , Byonggwon Song , Hoon Song , Jungkwuen An , Hongseok Lee
IPC: G02F1/29
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.
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公开(公告)号：US10663638B2
公开(公告)日：2020-05-26
申请号：US15000183
申请日：2016-01-19
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hongseok Lee , Geeyoung Sung , Joonyong Park , Hoon Song , Bongsu Shin , Yoonsun Choi
IPC: F21V8/00 , H04N13/32 , H04N13/356
Abstract: A two-dimensional (2D)/three-dimensional (3D) switchable backlight unit and an image display apparatus using the 2D/3D switchable backlight unit are provided. The 2D/3D switchable backlight unit includes: a light source unit; a first light guide plate, within which light from the light source unit is totally internally reflected; and a plurality of refraction patterns, each having a trapezoidal form. The light source unit may include a first light source and a second light source.
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公开(公告)号：US20200033615A1
公开(公告)日：2020-01-30
申请号：US16249434
申请日：2019-01-16
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yuntae Kim , Geeyoung Sung , Changkun Lee , Hongseok Lee
Abstract: A three-dimensional (3D) image display apparatus includes a processor configured to determine, from image data of a 3D image to be displayed, a representative depth value based on a current frame of the 3D image and a previous frame of the 3D image, and an imaging optical system configured to generate the 3D image in a predetermined space by modulating light based on the representative depth value.
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公开(公告)号：US10545328B2
公开(公告)日：2020-01-28
申请号：US15724459
申请日：2017-10-04
Inventor： Hojung Kim , Kichul Kim , Yongkyu Kim , Hongseok Lee
Abstract: An image processing apparatus includes a core configured to perform a fast Fourier transformation (FFT) operation on the image data, a memory configured to store data that is output by the core, and a controller configured to control the core to perform the FFT operation on the image data. The core is resettable based on an amount of the image data.
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公开(公告)号：US10523926B2
公开(公告)日：2019-12-31
申请号：US14673987
申请日：2015-03-31
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunil Kim , Chilsung Choi , Jungkwuen An , Alexander V. Morozov , Hongseok Lee , Andrey N. Putilin , German B. Dubinin , Sergey E. Dubynin
IPC: H04N13/32
Abstract: Provided are a backlight unit and a holographic display including the same. The backlight unit may include: a light guide plate; a light source unit configured to adjust a direction of light which is emitted from the light source unit and incident on the light guide plate; and a diffraction device which is disposed on the light guide plate and configured to control a direction of light emitted from the light guide plate.
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