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公开(公告)号：US20250149800A1
公开(公告)日：2025-05-08
申请号：US19002759
申请日：2024-12-27
Applicant: Japan Display Inc.
Inventor： Daiichi SUZUKI , Shinichiro OKA , Mitsutaka OKITA
IPC: H01Q15/14 , G02F1/1343
Abstract: A reflecting device includes a plurality of first patch electrodes, a plurality of second patch electrodes having a size different from a size of the first patch electrodes, a ground electrode opposing the plurality of first patch electrodes and the plurality of second patch electrodes and separated from the plurality of first patch electrodes and the plurality of second patch electrodes, and a liquid crystal layer between the plurality of first patch electrodes and the plurality of second patch electrodes and the ground electrode, wherein the plurality of first patch electrodes and the plurality of second patch electrodes are arranged alternately in a first direction or a second direction intersecting the first direction, and each first patch electrode is adjacent to each second patch electrode in the first direction or the second direction.
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公开(公告)号：US20250149786A1
公开(公告)日：2025-05-08
申请号：US19003062
申请日：2024-12-27
Applicant: Japan Display Inc.
Inventor： Mitsutaka OKITA , Shinichiro OKA , Daiichi SUZUKI , Hiromi MATSUNO , Takuya OHTO , Yoshiaki AMANO
IPC: H01Q3/46
Abstract: A driving method of an intelligent reflecting surface having a plurality of reflecting elements arranged in a matrix, the method includes dividing the plurality of reflecting elements arranged in the matrix into a first region that controls an amount of phase change for each row of the plurality of reflecting elements arrayed in a row direction and a second region that controls an amount of phase change for every two adjacent rows of a plurality of reflecting elements arrayed in the row direction, and driving each of the plurality of reflecting elements belonging to the first region
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公开(公告)号：US20240047890A1
公开(公告)日：2024-02-08
申请号：US18477602
申请日：2023-09-29
Applicant: Japan Display Inc.
Inventor： Shinichiro OKA , Mitsutaka OKITA , Daiichi SUZUKI , Shigesumi ARAKI , Yoshiaki AMANO , Hiromi MATSUNO
CPC classification number: H01Q15/148 , H01Q21/065 , H01Q3/36
Abstract: According to one embodiment, an intelligent reflecting surface includes a plurality of patch areas including a plurality of square patch electrodes, an electrode shape formed by the patch electrode, a first connection electrode, a second connection electrode, a third connection electrode, and a fourth connection electrode included in each of the plurality of patch areas has rotational symmetry having a point inside each of the plurality of patch areas as a center of rotation, and a first patch area, a second patch, a third patch area, and a fourth patch area have an intersection of the first patch area, the second patch area, the third patch area, and the fourth patch area as a whole as a center of rotation.
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公开(公告)号：US20150102988A1
公开(公告)日：2015-04-16
申请号：US14510471
申请日：2014-10-09
Applicant: Japan Display Inc.
Inventor： Daiichi SUZUKI , Yukio TANAKA , Kenji NAKAO , Kazuhiro NISHIYAMA , Shinichi KOMURA , Shinichiro OKA , Mika OIWA
IPC: G02F1/133 , G02F1/1368 , G09G3/36 , G02F1/1337
CPC classification number: G09G3/3648 , G02F1/1337 , G02F1/134363 , G02F1/1368 , G02F2001/134372 , G09G3/3614 , G09G2300/0426 , G09G2320/0247 , G09G2330/021 , G09G2340/0435
Abstract: According to one embodiment, a lateral electric-field type of liquid crystal display device includes a display panel and a controller, wherein a frame frequency falls within a range of 1 Hz to 10 Hz, an off-leak current of each of the TFTs has a value of 1×10−15 A or less, a resistivity of a liquid crystal and a resistivity of an alignment film both fall within one of a first range and a second range, the first range being 1×1013 to 5×1013 Ω·cm, the second range being 5×1013 to 5×1014 Ω·cm, and a relationship of “R1×C1≈R2×C2” is satisfied, where R1 is a resistance and C1 is a capacity with respect to each pixel, R2 is a resistance and C2 is a capacity with respect to each pixel.
Abstract translation: 根据一个实施例，液晶显示装置的横向电场型包括显示面板和控制器，其中帧频落在1Hz至10Hz的范围内，每个TFT的截止漏电流具有 1×10 -15 A或更小的值，液晶的电阻率和取向膜的电阻率均落在第一范围和第二范围之内，第一范围为1×1013至5×1013＆OHgr ;·cm，第二范围为5×1013〜5×1014＆OHgr·cm，并且满足“R1×C1≈R2×C2”的关系，其中R1是电阻，C1是相对于每个 像素，R2是电阻，C2是相对于每个像素的容量。
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公开(公告)号：US20150062100A1
公开(公告)日：2015-03-05
申请号：US14476999
申请日：2014-09-04
Applicant: Japan Display Inc.
Inventor： Yukio TANAKA , Daiichi SUZUKI , Kazuhiro NISHIYAMA
CPC classification number: G09G3/2096 , G09G3/3648 , G09G2310/08 , G09G2320/0247 , G09G2320/103 , G09G2340/0435
Abstract: When normal driving is switched to intermittent driving simultaneously with switching from a video image to a still image, a flicker may occur due to a response delay caused by dielectric anisotropy of liquid crystal. A display device has a first mode (video image driving) in which driving is performed at a first frame frequency and a second mode (still image driving) in which the driving is performed at a second frame frequency lower than the first frame frequency. When the first mode is switched to the second mode, the display device first performs the driving at a frame frequency higher than the second frame frequency for at least one frame and then, the driving is switched to be performed at the second frame frequency.
Abstract translation: 当从视频图像切换到静止图像同时切换到间歇驱动时，由于液晶的介电各向异性引起的响应延迟，可能会发生闪烁。 显示装置具有第一模式（视频图像驱动），其中以低于第一帧频率的第二帧频进行驱动的第一帧频进行驱动和第二模式（静止图像驱动）。 当第一模式切换到第二模式时，显示装置首先以高于第二帧频的帧频执行至少一帧的驱动，然后切换以第二帧频执行。
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Patent Agency Ranking
公开(公告)号：US20250147347A1
公开(公告)日：2025-05-08
申请号：US19016275
申请日：2025-01-10
Applicant: Japan Display Inc.
Inventor： Daiichi SUZUKI , Shinichiro OKA , Mitsutaka OKITA
Abstract: A method for inspecting a reflecting device, which has a plurality of reflecting elements arrayed in a matrix, each of the plurality of reflecting elements comprises a patch electrode, a common electrode on a back side of the patch electrode, and a liquid crystal layer between the patch electrode and the common electrode, a first voltage V1 is applied between one of the plurality of patch electrodes and the common electrode, and whether the reflecting element is good or bad is determined based on changes in a frame region that appears around a periphery of one of the plurality of patch electrodes in a top view when a voltage is applied between one of the plurality of patch electrodes and the common electrode.
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公开(公告)号：US20240405441A1
公开(公告)日：2024-12-05
申请号：US18804145
申请日：2024-08-14
Applicant: Japan Display Inc.
Inventor： Shigesumi ARAKI , Shinichiro OKA , Mitsutaka OKITA , Daiichi SUZUKI
IPC: H01Q15/14
Abstract: Disclosed is an intelligent reflecting surface including a plurality of radio-wave reflecting devices, an adjusting substrate over the plurality of radio-wave reflecting devices, and an anti-reflective film located over the adjusting substrate and configured to absorb radio waves. Each of the plurality of radio-wave reflecting devices includes a pair of substrates and a plurality of radio-wave reflecting elements between the pair of substrates. The anti-reflective film has a lattice shape as a whole. An edge is covered by the anti-reflective film and a portion surrounded by the edge is exposed from the anti-reflective film in each of the plurality of radio-wave reflecting devices. A frequency of the radio waves is equal to or greater than 400 MHz and equal to or less than 50 GHz, for example.
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公开(公告)号：US20240027826A1
公开(公告)日：2024-01-25
申请号：US18477550
申请日：2023-09-29
Applicant: Japan Display Inc.
Inventor： Mitsutaka OKITA , Shinichiro OKA , Shigesumi ARAKI , Daiichi SUZUKI , Yoshiaki AMANO , Hiromi MATSUNO
IPC: G02F1/1335 , G02F1/1347 , G02F1/1343
CPC classification number: G02F1/133553 , G02F1/13478 , G02F1/134309
Abstract: According to one embodiment, an intelligent reflecting surface includes a first substrate including a plurality of patch electrodes spaced apart and arranged in a matrix along each of an X-axis and a Y-axis orthogonal to each other, a second substrate including a common electrode opposed to the plurality of patch electrodes in a direction parallel to a Z-axis orthogonal to each of the X-axis and the Y-axis, and a liquid crystal layer held between the first substrate and the second substrate and opposed to the plurality of patch electrodes. Each of the patch electrodes includes a first aperture.
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公开(公告)号：US20210408681A1
公开(公告)日：2021-12-30
申请号：US17447601
申请日：2021-09-14
Applicant: Japan Display Inc.
Inventor： Daiichi SUZUKI , Mitsutaka OKITA , Emi HIGANO
Abstract: An antenna device includes a strip conductor layer, a radiation conductor layer continuous from the strip conductor layer, a ground conductor layer facing the strip conductor layer and the radiation conductor layer, a liquid crystal layer between the strip conductor layer and the ground conductor layer, and the radiation conductor layer and the ground conductor layer, and an alignment film between the strip conductor layer and the liquid crystal layer, and the radiation conductor layer and the liquid crystal layer. The alignment film includes a first region overlapping the strip conductor layer and a second region overlapping the radiation conductor layer, and the alignment state of liquid crystal molecules of the liquid crystal layer in the first region is different from the alignment state of liquid crystal molecules of the liquid crystal layer in the second region.
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公开(公告)号：US20180217423A1
公开(公告)日：2018-08-02
申请号：US15883198
申请日：2018-01-30
Applicant: Japan Display Inc.
Inventor： Daiichi SUZUKI , Hirofumi WAKEMOTO , Mitsutaka OKITA , Tetsuya KOJIMA
IPC: G02F1/1337 , G02F1/1339 , G02F1/1345 , G02F1/1333 , G09G3/36
Abstract: According to one embodiment, the organic insulating film and the alignment film are provided on the first substrate. The alignment film is located between the liquid crystal layer and the organic insulating film and contacts the liquid crystal layer. The organic insulating film has a restricting portion on an inner side from the sealant and on an outer side from the display area. The restricting portion includes a recess and a projection extending in predetermined directions. The alignment film is formed on the restricting portion.
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