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公开(公告)号：US11132967B2
公开(公告)日：2021-09-28
申请号：US16790261
申请日：2020-02-13
Inventor： Hideyuki Nakanishi , Toshikazu Koudo , Katsuhiro Kikuchi
Abstract: A liquid crystal display device having a plurality of display panels disposed in a superposed manner, comprising: a first display panel that displays a first image; a second display panel disposed on a back surface side of the first display panel to display a second image; and an image processor that generates first image data for the first image and second image data for the second image based on the input image data, wherein the image processor includes: a differential filter that performs differential filter processing on a luminance signal calculated from the input image data and outputs a differential detection value; a background level detection circuit that detects a background level using the luminance signal; a gain determination circuit that determines a filter gain using the differential detection value and the background level; and a low-pass filter that performs low-pass filter processing using the filter gain.
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公开(公告)号：US11119368B2
公开(公告)日：2021-09-14
申请号：US16781756
申请日：2020-02-04
Inventor： Teruhisa Nakagawa
IPC: G02F1/1343 , G02F1/1368
Abstract: A liquid crystal display panel having a plurality of pixels arrayed in a matrix, the liquid crystal display panel comprising: a plurality of first signal lines; a transistor provided in each of the plurality of pixels; and a pixel electrode provided in each of the plurality of pixels, wherein, in each of the plurality of pixels, the pixel electrode includes a first pixel electrode and a second pixel electrode that are separated across the first signal line corresponding to the pixel and a bridge electrode that extends over the first signal line and connects the first pixel electrode and the second pixel electrode, the first pixel electrode has a plurality of first line electrodes extending in a first direction, and the second pixel electrode has a plurality of second line electrodes extending in a second direction different from the first direction.
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公开(公告)号：US11081071B2
公开(公告)日：2021-08-03
申请号：US16709570
申请日：2019-12-10
Inventor： Toshikazu Koudo
IPC: G09G3/36
Abstract: A liquid crystal display device that displays an input video signal, the liquid crystal display device comprising: a first liquid crystal display panel and a second liquid crystal display panel disposed to be laminated; a gamma corrector that generates a corrected video signal by performing gamma correction decided depending on a first control signal input from an outside with respect to the video signal; a first video signal generator that generates a first video signal for the first liquid crystal display panel using the corrected video signal; and a second video signal generator that generates a second video signal for the second liquid crystal display panel using the first video signal.
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公开(公告)号：US11074877B1
公开(公告)日：2021-07-27
申请号：US16750830
申请日：2020-01-23
Inventor： Hideyuki Nakanishi , Katsuhiro Kikuchi , Takenobu Nishiguchi , Tatsuo Itoman
Abstract: A liquid crystal (LC) display device includes a first display panel, a second display panel, and an image processor. The image processor generates first image data and second image data that correspond to a first image and a second image for display on the first display panel and the second display panel, respectively. The image processor includes a first image data decision unit that decides the first image data, a filter that decides a correction factor, and a second image data decision unit that decides the second image data based on smoothed image data and the correction factor. A method for displaying an image in a LC display device with a first display panel and a second display panel includes determining first image data based on smoothed input image data, and determining second image data based on the smoothed input image data and a correction factor.
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Patent Agency Ranking
公开(公告)号：US20210166646A1
公开(公告)日：2021-06-03
申请号：US17170297
申请日：2021-02-08
Inventor： Toshikazu KOUDO , Tetsuo FUKAMI
IPC: G09G3/36 , G02F1/1368 , G02F1/1347 , G02F1/1335 , G02F1/133 , G02F1/1362
Abstract: A display device includes a first display panel disposed closer to an observer and a second display panel disposed farther from the observer than the first display panel. An image display region of the second display panel is larger than an image display region of the first display panel.
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公开(公告)号：US10962849B2
公开(公告)日：2021-03-30
申请号：US15882702
申请日：2018-01-29
Inventor： Ikuko Mori , Tomohiro Murakoso , Kazuhiko Tsuda
IPC: G02F1/1347 , G02F1/1333 , G02F1/1335 , G02F1/1337 , G02F1/1362
Abstract: A liquid crystal display device includes a plurality of display panels which are disposed so as to overlap each other, each of the display panels displaying an image. The liquid crystal display device includes a first substrate; a second substrate disposed opposite to the first substrate in a first direction; a first liquid crystal layer disposed between the first substrate and the second substrate; a third substrate disposed opposite to the first substrate in a second direction that is an opposite direction to the first direction; and a second liquid crystal layer disposed between the first substrate and the third substrate.
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公开(公告)号：US10884280B2
公开(公告)日：2021-01-05
申请号：US16168394
申请日：2018-10-23
Inventor： Kikuo Ono
IPC: G02F1/1335 , G02F1/017 , G02F1/13357 , G02F1/1343
Abstract: A liquid crystal display device comprising; a first display panel including a first substrate, a second substrate that is disposed in a first direction with respect to the first substrate and includes a color filter, and a first liquid crystal layer disposed between the first substrate and the second substrate; a color conversion unit disposed in a second direction opposite to the first direction with respect to the first display panel; and a backlight disposed in the second direction with respect to the color conversion unit. The color conversion unit converts backlight light emitted from the backlight into light of a color corresponding to the color filter, and emits the light.
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公开(公告)号：US10783841B2
公开(公告)日：2020-09-22
申请号：US16116510
申请日：2018-08-29
Inventor： Satoshi Hirotsune , Toshikazu Koudo
Abstract: A liquid crystal display device comprises a first and second display panels that display a first image and a second image, respectively based on input image data of m bits, and are both driven by n bits, where n
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公开(公告)号：US10739627B2
公开(公告)日：2020-08-11
申请号：US15927365
申请日：2018-03-21
Inventor： Yusuke Katagiri , Masaki Tsubokura
IPC: G02F1/1333 , H01L27/12 , H05K1/18 , G02F1/1345 , G02F1/1347 , H05K1/14
Abstract: A display device includes: a first display panel; a first flexible substrate on which a first driver IC outputting a driving signal to the first display panel is mounted; a second flexible substrate being apart from the first flexible substrate, at least a part of the second flexible substrate overlapping the first flexible substrate; and an insulating material disposed between the first flexible substrate and the second flexible substrate. The first flexible substrate is connected to the first display panel so that the first driver IC is on a side of the second flexible substrate. The insulating material is disposed between the first driver IC and the second flexible substrate.
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