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公开(公告)号：US10551795B2
公开(公告)日：2020-02-04
申请号：US15169849
申请日：2016-06-01
发明人： Geeyoung Sung , Jungkwuen An , Hongseok Lee
摘要： A spatial light modulator providing an expanded viewing window and a holographic display apparatus including the spatial light modulator are provided. The spatial light modulator includes a mask member having a periodic pattern that is arranged to split an area of each of a plurality of pixels into at least two portions such that a space between lattice spots formed by a period structure of the spatial light modulator increases.
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公开(公告)号：US20180129166A1
公开(公告)日：2018-05-10
申请号：US15676336
申请日：2017-08-14
发明人： Wontaek Seo , Juwon Seo , Geeyoung Sung , Yuntae Kim
摘要： A holographic display apparatus for providing an expanded viewing window is provided. The holographic display apparatus includes a spatial filter configured to allow a plurality of holographic images generated by 0th order or higher diffraction in a spatial light modulator to pass therethrough, and an image path conversion element configured to adjust a light path of the plurality of holographic images so that the plurality of holographic images are spaced apart from each other on a focal plane of an optical system.
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公开(公告)号：US11509877B2
公开(公告)日：2022-11-22
申请号：US16905141
申请日：2020-06-18
发明人： Yuntae Kim , Bongsu Shin , Geeyoung Sung , Hongseok Lee
IPC分类号： H04N13/128 , H04N13/111 , H04N13/00
摘要： An image display device includes a processor that sets a location of a virtual image plane on which a virtual image is formed according to depth information included in first image data and generates second image data obtained by correcting the first image data based on the set location of the virtual image plane; an image forming optical system including a display element configured to modulate light to form a display image according to the second image data and a light transfer unit that forms the virtual image on the virtual image plane, the virtual image corresponding to the display image formed by the display element, the light transfer unit comprising a focusing member; and a drive unit that drives the image forming optical system to adjust the location of the virtual image plane.
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公开(公告)号：US11187901B2
公开(公告)日：2021-11-30
申请号：US16275424
申请日：2019-02-14
发明人： Bongsu Shin , Sunil Kim , Wontaek Seo , Geeyoung Sung , Changkun Lee
IPC分类号： G02B27/01
摘要： A see-through type display device includes an image generation unit configured to emit image light, a light coupling unit configured to generate off-axis aberration in the image light, and a correction aberration generation unit configured to generate correction aberration, opposite to the off-axis aberration, in the image light emitted from the image generation unit, wherein the correction aberration generation unit is disposed on an optical path of the image light between the image generation unit and the light coupling unit, and wherein the light coupling unit is disposed off-axis relative to the image light.
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公开(公告)号：US10928645B2
公开(公告)日：2021-02-23
申请号：US16249434
申请日：2019-01-16
发明人： Yuntae Kim , Geeyoung Sung , Changkun Lee , Hongseok Lee
摘要： 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：US10754074B2
公开(公告)日：2020-08-25
申请号：US16034931
申请日：2018-07-13
发明人： Juwon Seo , Wontaek Seo , Geeyoung Sung , Changkun Lee , Hongseok Lee , Jaeseung Chung
摘要： A holographic display apparatus for providing an expanded viewing window includes a spatial filter configured to separate a plurality of holographic images generated by the hologram pattern displayed on the spatial light modulator from a plurality of lattice spots generated by a physical structure of the spatial light modulator. The spatial filter includes a plurality of color filters or a plurality of dichroic mirrors separating a first color image, a second color image, and a third color image from a first color lattice spot, a second color lattice spot, and a third color lattice spot.
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公开(公告)号：US10133162B1
公开(公告)日：2018-11-20
申请号：US15883570
申请日：2018-01-30
发明人： Jaeseung Chung , Geeyoung Sung , Hongseok Lee
摘要： A projection display apparatus that tracks a user's eye with an eye tracker and displays a high-resolution image at a position of the user's eye. The projection display apparatus includes an eye tracker configured to track an eye of a user; a projector configured to project an image; and a controller configured to control the projector, based on a position of the eye of the user obtained from the eye tracker, to perform a first operation to project a first portion of the image at a first resolution onto a first region with respect to the position of the eye of the user, and to perform one of a second operation to project a second portion of the image at a second resolution lower than the first resolution onto a second region excluding the first region, and a third operation to refrain from projecting the image in the second region.
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公开(公告)号：US09869969B2
公开(公告)日：2018-01-16
申请号：US14682548
申请日：2015-04-09
发明人： Hoon Song , Geeyoung Sung , Kanghee Won , Hongseok Lee
CPC分类号： G03H1/02 , G02B5/06 , G02B26/005 , G02B26/0883 , G02B27/2271 , G02F1/133371 , G02F1/292 , G03H1/2286 , G03H1/2294 , G03H2001/0216 , G03H2001/221 , G03H2001/2292 , G03H2223/18 , G03H2227/03
摘要： A holographic display includes: a light source; at least one beam steerer configured to control a propagation direction of a beam emitted from the light source; an optical element configured to condense a beam passing through the at least one beam steerer; and a spatial light modulator configured to form a three-dimensional (3D) image by modulating a beam passing through the at least one beam steerer.
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19.发明授权公开(公告)号：US09696687B2
公开(公告)日：2017-07-04
申请号：US14561760
申请日：2014-12-05
发明人： Geeyoung Sung , Hoon Song , Jungkwuen An , Kanghee Won , Hongseok Lee
CPC分类号： G03H1/2294 , G02B5/045 , G02B5/32 , G02B27/2214 , G02B27/2242 , G02B27/2264 , G03H2001/0224 , G03H2223/18 , G03H2223/19 , G03H2225/33 , G03H2225/55
摘要： Provided are a complex spatial light modulator and a three-dimensional (3D) image display apparatus. The complex spatial light modulator includes a spatial light modulator configured to modulate a phase of light, a first prism array which is disposed after the spatial light modulator along a path of the light, and including prism units each having a first prism surface and a second prism surface, and a hologram optical device configured to diffract the light that has passed through the first prism array independently from a polarization of the light, where the first prism array and the hologram optical device are configured to modulate the phase and an amplitude of the light.
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公开(公告)号：US20230043244A1
公开(公告)日：2023-02-09
申请号：US17969432
申请日：2022-10-19
发明人： Yuntae Kim , Bongsu Shin , Geeyoung Sung , Hongseok Lee
IPC分类号： H04N13/128 , H04N13/111
摘要： An image display device includes a processor that sets a location of a virtual image plane on which a virtual image is formed according to depth information included in first image data and generates second image data obtained by correcting the first image data based on the set location of the virtual image plane; an image forming optical system including a display element configured to modulate light to form a display image according to the second image data and a light transfer unit that forms the virtual image on the virtual image plane, the virtual image corresponding to the display image formed by the display element, the light transfer unit comprising a focusing member; and a drive unit that drives the image forming optical system to adjust the location of the virtual image plane.
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