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公开(公告)号：US20250093708A1
公开(公告)日：2025-03-20
申请号：US18964732
申请日：2024-12-02
Applicant: Japan Display Inc.
Inventor： Mitsutaka OKITA , Shinichiro OKA , Daiichi SUZUKI
IPC: G02F1/1343
Abstract: A reflecting device includes a patch electrode, a common electrode, a liquid crystal layer sandwiched between the patch electrode and the common electrode, and a metal film arranged on the opposite side of the common electrode from the side of the liquid crystal layer, wherein the metal film is spaced apart from the common electrode, and the patch electrode is arranged to overlap the metal film. X can be the value obtained by multiplying a distance T between the common electrode and the metal film by the wavelength λ of the radio wave irradiated to the patch electrode, and x can be equal to or greater than 0.02 and less than or equal to 0.34. X can be equal to or greater than 0.10 and less than or equal to 0.22.
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公开(公告)号：US20250015508A1
公开(公告)日：2025-01-09
申请号：US18893986
申请日：2024-09-24
Applicant: Japan Display Inc.
Inventor： Daiichi SUZUKI , Takanori TSUNASHIMA , Masayuki IKARI , Shinichiro OKA , Mitsutaka OKITA , Kazuki MATSUNAGA
IPC: H01Q15/14
Abstract: A reflect array includes a plurality of patch electrodes arranged spaced apart and interconnected to an incident surface of a radio wave, a plurality of control electrodes arranged spaced apart to correspond to the plurality of patch electrodes and disposed on a rear side of the plurality of patch electrodes, a liquid crystal layer between the plurality of patch electrodes and the plurality of control electrodes, and an auxiliary electrode disposed to overlap a separated region of the plurality of control electrodes.
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公开(公告)号：US20250004322A1
公开(公告)日：2025-01-02
申请号：US18885794
申请日：2024-09-16
Applicant: Japan Display Inc.
Inventor： Kazuki MATSUNAGA , Shinichiro OKA , Mitsutaka OKITA , Daiichi SUZUKI
IPC: G02F1/1335 , G02F1/1343 , G02F1/1362
Abstract: A reflecting device in an embodiment according to the present invention includes common electrodes arranged in a matrix at a distance in a first direction and a second direction intersecting the first direction, bias electrodes arranged overlapping the common electrodes in a planar view, a liquid crystal layer between the common electrodes and the bias electrodes, and common wirings connecting adjacent common electrodes among the common electrodes. Each of the common wirings has a length of half an effective wavelength λg when a radio wave of a specific wavelength λ propagates through the liquid crystal layer.
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公开(公告)号：US20240322429A1
公开(公告)日：2024-09-26
申请号：US18673910
申请日：2024-05-24
Applicant: Japan Display Inc.
Inventor： Daiichi SUZUKI , Shinichiro OKA , Shigesumi ARAKI , Mitsutaka OKITA
IPC: H01Q3/46 , G02F1/1343 , H01Q3/36 , H01Q15/14
CPC classification number: H01Q3/46 , G02F1/134336 , H01Q3/36 , H01Q15/148
Abstract: According to one embodiment, an intelligent reflecting surface includes a plurality of individual areas, each of the individual areas including a first area and one or more second areas, a connection area, a first substrate including a plurality of patch electrodes, a second substrate including a common electrode, the common electrode being located in the first area of each of the individual areas and the connection area and being opposed to the patch electrodes, and a liquid crystal layer held between the first substrate and the second substrate and opposed to the patch electrodes.
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公开(公告)号：US20240103322A1
公开(公告)日：2024-03-28
申请号：US18530320
申请日：2023-12-06
Applicant: Japan Display Inc.
Inventor： Shigesumi ARAKI , Mitsutaka OKITA , Daiichi SUZUKI , Shinichiro OKA
IPC: G02F1/1343 , G02F1/1335 , H01Q3/36
CPC classification number: G02F1/134309 , G02F1/133553 , H01Q3/36
Abstract: A phase modulating device includes a first electrode; a second electrode; and a liquid crystal layer including a plurality of liquid crystal molecules and arranged between the first electrode and the second electrode, wherein a height of the liquid crystal layer from the first electrode toward the second electrode is 30 μm or more and 50 μm or less, and in a planar view of a first plane including the first electrode, the liquid crystal layer and the second electrode, the first plane intersecting with an in-plane direction of the first electrode, at least two liquid crystal molecules arranged adjacent to each other in a direction parallel to the in-plane direction of the first electrode and oriented differently from each other are included.
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Patent Agency Ranking
公开(公告)号：US20230400747A1
公开(公告)日：2023-12-14
申请号：US18451122
申请日：2023-08-17
Applicant: Japan Display Inc.
Inventor： Shinichiro OKA , Mitsutaka OKITA , Daiichi SUZUKI , Shigesumi ARAKI
CPC classification number: G02F1/313 , G02F1/0045 , G02F1/009 , G02F2201/121 , G02F2203/02
Abstract: According to one embodiment, an intelligent reflecting device includes a first substrate including a first base and a plurality of patch electrodes, a second substrate including a second base and a common electrode opposed to the plurality of patch electrodes, a liquid crystal layer held between the first and second substrates, a heat exchanger provided in contact with the second substrate, a temperature sensor, and a temperature controller that controls the heat exchanger based on the temperature detected by the temperature sensor, wherein an incident wave is incident on an incidence surface of the first substrate, and the heat exchanger is provided on a surface opposed to the incidence surface.
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公开(公告)号：US20170184929A1
公开(公告)日：2017-06-29
申请号：US15389941
申请日：2016-12-23
Applicant: Japan Display Inc.
Inventor： Daiichi SUZUKI , Yoshifumi Saeki , Yukio Tanaka , Noboru Kunimatsu , Hidehiro Sonoda , Masahiro Kosuge
IPC: G02F1/1343 , G02F1/133 , G02F1/1337
CPC classification number: G02F1/134363 , G02F1/13306 , G02F1/1337 , G02F2001/134372 , G02F2201/121 , G02F2201/123
Abstract: According to one embodiment, a liquid crystal display device includes a liquid crystal display panel which includes a pixel electrode, a liquid crystal layer and an alignment film, and a driver. The driver drives the pixel electrode at a drive frequency of 1 to 20 Hz. The alignment film has a resistivity of 5×1014 Ω·cm or more.
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公开(公告)号：US20140362129A1
公开(公告)日：2014-12-11
申请号：US14291614
申请日：2014-05-30
Applicant: Japan Display Inc.
Inventor： Yukio TANAKA , Daiichi SUZUKI , Kenji NAKAO
CPC classification number: G09G3/3406 , G09G3/3614 , G09G3/3677 , G09G2320/0247 , G09G2320/041 , G09G2320/0646 , G09G2360/14 , G09G2360/16
Abstract: According to one embodiment, a liquid crystal display apparatus includes a display panel on which a plurality of liquid crystal pixels are arrayed in a matrix, a lighting module arranged to be opposed to the display panel and configured to illuminate the display panel, and a control module configured to control image display on the display panel and luminance of a light source of the lighting module, the control module rewriting an image signal to the liquid crystal pixels by intermittent driving and controlling the luminance of the light source to be proportional to a reciprocal of transmittance of the display panel.
Abstract translation: 根据一个实施例，液晶显示装置包括：多个液晶像素排列在矩阵中的显示面板;布置成与显示面板相对并配置为照亮显示面板的照明模块;以及控制 模块，被配置为控制显示面板上的图像显示和照明模块的光源的亮度，控制模块通过间歇驱动将图像信号重新写入液晶像素，并将光源的亮度与倒数成正比 的显示面板的透射率。
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公开(公告)号：US20250023252A1
公开(公告)日：2025-01-16
申请号：US18898739
申请日：2024-09-27
Applicant: Japan Display Inc.
Inventor： Kazuki MATSUNAGA , Shinichiro OKA , Mitsutaka OKITA , Daiichi SUZUKI
Abstract: A reflecting device includes a plurality of patch electrodes arranged in a first direction and in a second direction intersecting the first direction, and a common wiring connecting the plurality of patch electrodes in series in an array along the first direction. Each of the plurality of patch electrodes comprises a first length along the first direction and a second length along the second direction, and the first length is longer than the second length.
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公开(公告)号：US20240364008A1
公开(公告)日：2024-10-31
申请号：US18766744
申请日：2024-07-09
Applicant: Japan Display Inc. , TOHOKU UNIVERSITY
Inventor： Mitsutaka OKITA , Shigesumi ARAKI , Shinichiro OKA , Daiichi SUZUKI , Qiang CHEN , Hiroyasu SATO , Hideo FUJIKAKE
Abstract: A reflect array includes at least one common electrode arranged on an incident side of a radio wave, at least one bias electrode arranged to overlap a back side of the at least one common electrode, a bias signal line arranged on the back side of the at least one common electrode and connected to the at least one bias electrode, and a liquid crystal layer between the at least one common electrode and the at least one bias electrode. The at least one common electrode is at a constant potential, and a bias voltage is applied to the at least one bias electrode via the bias signal line to change the dielectric constant of the liquid crystal layer.
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