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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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公开(公告)号:US20210223651A1
公开(公告)日:2021-07-22
申请号:US16793453
申请日:2020-02-18
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor: Teruhisa Nakagawa
IPC: G02F1/1362 , G09G3/36 , G02F1/1345
Abstract: A display panel includes multiple pairs of scan lines extending in a first direction, multiple data lines extending in a second direction transverse to the first direction, and multiple connection lines extending in the second direction. For each pair of scan lines, the scan lines are provided with the same electrical signal. The data lines cooperate with the scan lines to define a plurality of pixel regions in such a way that two of the data lines are interposed between two of the pixel regions that are immediately adjacent to each other in the first direction in plan view. Each connection line is electrically connected to a corresponding pair of scan lines.
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23.
公开(公告)号:US20210223596A1
公开(公告)日:2021-07-22
申请号:US16793748
申请日:2020-02-18
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor: Masahiro ISHII , Tetsuo FUKAMI , Yukinori KAYAMA
IPC: G02F1/1343 , G02F1/13 , G02F1/1339 , G02F1/1337
Abstract: Disclosed herein are a viewing angle control unit, a substrate assembly of the viewing angle control unit, and a display assembly. The viewing angle control unit includes two substrate assemblies, a liquid crystal (LC) component disposed between the substrate assemblies, and a seal component interconnecting the substrate assemblies and surrounding the LC component. At least one of the substrate assemblies includes a transparent base substrate, a transparent electrode layer disposed on the transparent base substrate, and an alignment film disposed on the transparent electrode layer. The transparent electrode layer has a groove extending along at least part of the seal component, so as to mitigate excessive spreading of a material of the alignment film during manufacturing of the viewing angle control unit. The display assembly includes the viewing angle control unit.
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公开(公告)号:US11054927B2
公开(公告)日:2021-07-06
申请号:US16751736
申请日:2020-01-24
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor: Daisuke Kajita
Abstract: An in-cell touch panel includes: transistors and pixel electrodes respectively provided in pixels; common electrodes arranged in a first direction and a second direction, each facing one or more of the pixel electrodes and provided separately from each other; gate lines extending along the first direction; data lines extending along the second direction; dummy data lines extending along the second direction, provided in a same layer as the data lines; and touch lines extending along the second direction and connected to a corresponding one of common electrodes. The data lines and the dummy data lines are alternately provided for boundaries between two pixels adjacent in the first direction.
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公开(公告)号:US20210181569A1
公开(公告)日:2021-06-17
申请号:US17187945
申请日:2021-03-01
Inventor: Hideo TANABE , Masaru TAKABATAKE , Toshiki KANEKO , Atsushi HASEGAWA , Hiroko SEHATA
IPC: G02F1/1333 , G02F1/1362 , G02F1/1368 , H01L27/12 , H01L29/786
Abstract: A LCD device having a large pixel holding capacitance includes opposedly facing first and second substrates, and liquid crystal between them. The first substrate includes a video signal line, a pixel electrode, a thin film transistor having a first electrode connected to the video signal line and a second electrode connected to the pixel electrode, a first silicon nitride film formed above the second electrode, an organic insulation film above the first silicon nitride film, a capacitance electrode above the organic insulation film, and a second silicon nitride film above the capacitance electrode and below the pixel electrode. A contact hole etched in both the first and second silicon nitride films connects the second electrode and the pixel electrode to each other. A holding capacitance is formed by the pixel electrode, the second silicon nitride film and the capacitance electrode.
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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:US20210149232A1
公开(公告)日:2021-05-20
申请号:US17160684
申请日:2021-01-28
Inventor: Takahiro NAGAMI
IPC: G02F1/1339 , G02F1/1335 , G02F1/1341
Abstract: A display device includes a display panel having a display region and a peripheral region, the display panel including a TFT substrate, a counter substrate fixed to the TFT substrate by seal material formed at the peripheral region, and liquid crystal interposed between the TFT substrate and the counter substrate. The TFT substrate includes an inorganic film and an organic film, with first column spacers being formed on the counter substrate. The organic film includes a first part which has an island-like shape formed at the peripheral region and a second part formed at the display region, and the seal material covers at least one of the first column spacers and the first part of the organic film, and is in contact with the inorganic film. The first part of the organic film is separated from the second part of the organic film of the organic film.
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28.
公开(公告)号:US10983399B2
公开(公告)日:2021-04-20
申请号:US16566456
申请日:2019-09-10
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor: Kazuhiko Tsuda , Yoshiki Watanabe , Norimichi Shirai
IPC: G02F1/1333 , G02F1/1339
Abstract: A method for manufacturing a liquid crystal display device including a display panel provided with a first substrate, a second substrate, and liquid crystal, the method comprises: a first irradiation step of irradiating first positions of a first glass plate and a second glass plate with a laser beam having first irradiation energy; a second irradiation step of irradiating second positions of the first glass plate and the second glass plate with the laser beam having second irradiation energy higher than the first irradiation energy; and an etching step of exposing the display panel to an etching solution after the first irradiation step and the second irradiation step, such that the first positions are not cleaved, the second positions are cleaved, and at least a part of an outer periphery of each of the first substrate and the second substrate is formed.
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公开(公告)号:US10976609B2
公开(公告)日:2021-04-13
申请号:US16783879
申请日:2020-02-06
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor: Naoki Sato
IPC: G02F1/13357
Abstract: A lighting device includes: a light source including a light emitting element that emits light having an emission peak wavelength in a wavelength range of 500 nm or less; and first, second and third fluorescent substances on which light emitted from the light emitting element is incident, wherein the first fluorescent substance absorbs at least light emitted from the light emitting element to emit light having a emission peak wavelength in a wavelength range of 500 nm to 580 nm, the second fluorescent substance absorbs at least light emitted from the first fluorescent substance to emit light having a emission peak wavelength in a wavelength range of 580 nm to 750 nm, and the third fluorescent substance absorbs light having a wavelength range of 500 nm or less to emit light having a emission peak wavelength in a wavelength range of 600 nm to 750 nm.
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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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