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公开(公告)号：US20210325826A1
公开(公告)日：2021-10-21
申请号：US17232955
申请日：2021-04-16
Inventor： Sang Hoon CHEON , Yong Hae KIM , Seong-Mok CHO , Kyunghee CHOI , Chi-Sun HWANG
IPC: G03H1/22
Abstract: Disclosed is an apparatus for displaying a hologram including a pixel circuit array including first to nth pixel circuits, a first insulating layer provided on the pixel circuit array, first to nth pixel electrodes provided on the first insulating layer and electrically connected to the first to nth pixel circuits, respectively, a second insulating layer provided on the first insulating layer, first to nth display electrodes provided on the second insulating layer and electrically connected to the first to nth pixel electrodes, respectively, a display panel formed on the first to nth display electrodes, and a common electrode formed on the display panel. The first to nth display electrodes are clustery formed, and an area of the first to nth display electrodes is smaller than an area of the pixel circuit array.
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公开(公告)号：US20230296954A1
公开(公告)日：2023-09-21
申请号：US18077377
申请日：2022-12-08
Inventor： Chil Seong AH , Hojun RYU , Juhee SONG , Sang Hoon CHEON
IPC: G02F1/155 , G02F1/153 , G02F1/1516
CPC classification number: G02F1/155 , G02F1/1533 , G02F1/15165
Abstract: Provided is a method for manufacturing an electrochromic device, the method including forming a first electrode on a first flexible substrate, forming an electrochromic layer on the first electrode, etching the electrochromic layer to form electrochromic pixel patterns, etching the first electrode to form fine pattern electrodes including first fine pattern electrode portions and second fine pattern electrode portions, forming an insulation film on upper surfaces of the second fine pattern electrode portions, and forming an electrolyte layer on the insulation film and on the electrochromic pixel patterns, wherein the electrochromic pixel patterns are disposed on upper surface of the first fine pattern electrode portions, and the etching of the first electrode and the etching of the electrochromic layer are performed in a single process.
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公开(公告)号：US20220137556A1
公开(公告)日：2022-05-05
申请号：US17491246
申请日：2021-09-30
Inventor： Yong Hae KIM , Gi Heon KIM , Joo Yeon KIM , Jong-Heon YANG , Sang Hoon CHEON , Seong-Mok CHO , Kyunghee CHOI , Ji Hun CHOI , Jae-Eun PI , Chi-Sun HWANG
IPC: G03H1/22
Abstract: Provided is an operation method for a digital hologram implementation device including a backlight and a spatial light modulator, the operation method including setting an initial phase value of an optical signal to a remedy phase, computing a reduced phase based on the remedy phase, correcting the remedy phase based on a difference between the reduced phase and a preset optimized phase, determining whether the corrected remedy phase is a stabilized phase, performing forward propagation on the stabilized phase and an amplitude of the optical signal, correcting the amplitude of the optical signal, performing backward propagation on the corrected amplitude and the stabilized phase, and determining whether a phase derived by the backward propagation is an optimized phase.
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公开(公告)号：US20180062418A1
公开(公告)日：2018-03-01
申请号：US15617659
申请日：2017-06-08
Inventor： Sang Hoon CHEON , Hojun RYU
CPC classification number: H02J7/025 , H01F27/288 , H01F38/14 , H02J50/12 , H04B5/0037 , H04R1/1016 , H04R1/1025 , H04R5/0335 , H04R2420/07
Abstract: Provided is an electronic device system. The electronic device system includes an electronic device having an open loop shape and a coil within the electronic device. The coil includes a first coil part through which current flows in a first direction, a second coil part through which current flows in a second direction opposite to the first direction, and a shield unit provided to at least one of the first coil part or the second coil part.
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公开(公告)号：US20240369969A1
公开(公告)日：2024-11-07
申请号：US18442922
申请日：2024-02-15
Inventor： Sang Hoon CHEON , Won-Ok KWON , Joong-Ki PARK
Abstract: Disclosed is a hologram image generating system, which includes a preprocessor that receives point cloud data to convert the received point cloud data into depth map image data, a depth map hologram processor that generates depth map hologram data based on the depth map image data, and a hologram generating device that generates a hologram image based on the depth map hologram data.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240119111A1
公开(公告)日：2024-04-11
申请号：US18481025
申请日：2023-10-04
Inventor： Won Ok KWON , Sang Hoon CHEON
CPC classification number: G06F17/142 , G03H1/0866 , G03H1/16 , G03H2226/02
Abstract: The present invention relates to a method and apparatus for performing two dimension fast fourier transform for hologram processing. A method for processing a hologram according to an embodiment of the present disclosure may comprise: generating complex data by multiplying the digital image by a random phase value; performing inverse fast fourier transform (IFFT) processing on the complex data; generating pattern information by multiplying a result of the IFFT processing by a quadrant phase; and processing the hologram based on the pattern information. Here, the IFFT processing may comprise a IFFT core operation that performs row-base IFFT and column-base IFFT on the complex data, and a single shift IFFT operation that applies a predefined rule to a result of one or more of the row-based IFFT or the column-based IFFT.
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公开(公告)号：US20220214589A1
公开(公告)日：2022-07-07
申请号：US17519465
申请日：2021-11-04
Inventor： Tae-Youb KIM , Jisu HAN , Hojun RYU , Juhee SONG , Chil Seong AH , Sang Hoon CHEON
IPC: G02F1/155 , G02F1/1343 , G02F1/153 , C09D7/61 , C09D7/45 , C09D7/63 , C09D5/24 , C09D5/00 , C09D183/06 , C09D179/02
Abstract: Provided is a method of manufacturing a thin film electrode for an electrochromic device, and an electrochromic device manufactured thereby. Specifically, a method of manufacturing a thin film electrode for an electrochromic device includes: synthesizing insoluble Prussian blue nanoparticles; adding a surfactant to the insoluble Prussian blue nanoparticles to form water-soluble Prussian blue nanoparticles; adding a solvent and a binder to the water-soluble Prussian blue nanoparticles to form a mixed solution; applying the mixed solution onto an electrode; and performing a drying process on the electrode applied with the mixed solution, wherein the drying process may be performed at 15° C. to 30° C.
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公开(公告)号：US20220179272A1
公开(公告)日：2022-06-09
申请号：US17519455
申请日：2021-11-04
Inventor： Chil Seong AH , Juhee SONG , Hojun RYU , Tae-Youb KIM , Sang Hoon CHEON , Doo-Hee CHO , Seong-Mok CHO , Chi-Sun HWANG
IPC: G02F1/155 , G02F1/1524 , G02F1/1516 , G02F1/1343 , G02F1/1347 , C09K9/02
Abstract: Provided is an electrochromic display device including: a first substrate; a second substrate on the first substrate; an electrolyte layer disposed between the first substrate and the second substrate; a first transparent electrode provided between the electrolyte layer and the first substrate; second transparent electrodes provided between the electrolyte layer and the second substrate; a first electrochromic layer provided between the first transparent electrode and the electrolyte layer; and a second electrochromic layer provided between the second transparent electrodes and the electrolyte layer, wherein the second transparent electrodes each extend in a first direction and be disposed apart from each other in a second direction perpendicular to the first direction, the second electrochromic layer extends between the second transparent electrodes and contacts a lower surface of the second substrate, the first electrochromic layer includes an inorganic electrochromic material, and the second electrochromic layer includes an organic electrochromic material.
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公开(公告)号：US20210231956A1
公开(公告)日：2021-07-29
申请号：US17154737
申请日：2021-01-21
Inventor： Seong-Mok CHO , Yong Hae KIM , Hyunkoo LEE , Sang Hoon CHEON , Kyunghee CHOI , Chi-Sun HWANG
Abstract: Provided are a display device and an augmented reality apparatus including the same. The display device includes a display panel including display blocks and an optics array including pin hole structures that one-to-one correspond to the display blocks. Here, each of the pin hole structures includes a pin hole and a shielding area surrounding the pin hole, and the display blocks are spaced apart from each other in a first direction parallel to a top surface of the display panel and a second direction crossing the first direction and parallel to the top surface of the display panel.
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公开(公告)号：US20180231856A1
公开(公告)日：2018-08-16
申请号：US15864455
申请日：2018-01-08
Inventor： Joo Yeon KIM , JEONG IK LEE , Sang Hoon CHEON , Nam Sung CHO , Seong-Mok CHO , Yong Hae KIM , Tae-Youb KIM , Hojun RYU , Chil Seong AH , Chi-Sun HWANG
IPC: G02F1/155 , G02F1/157 , G02F1/1335 , G02F1/153
CPC classification number: G02F1/155 , G02F1/133553 , G02F1/1533 , G02F1/157 , G02F2001/1502 , G02F2001/1536 , G02F2001/1555 , G02F2201/50 , G02F2202/022
Abstract: An electrochromic mirror includes a first electrode structure, a second electrode structure provided on the first electrode structure, and an electrolyte provided between the first and second electrode structures. Here, the first electrode structure further includes a metal layer, a graphene layer disposed on the metal layer, and an interface part disposed between the metal layer and the graphene layer. The interface part includes a micro/nano-porous polymer material.
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