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公开(公告)号：US10962815B2
公开(公告)日：2021-03-30
申请号：US16735388
申请日：2020-01-06
Inventor： Hideo Tanabe , Masaru Takabatake , Toshiki Kaneko , Atsushi Hasegawa , Hiroko Sehata
IPC: G02F1/1333 , G02F1/1362 , G02F1/1368 , H01L27/12 , G02F1/1335 , G02F1/1343 , 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：US10942406B2
公开(公告)日：2021-03-09
申请号：US16674287
申请日：2019-11-05
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor： Teruhisa Nakagawa , Tetsuya Kawamura
IPC: G02F1/1362 , H01L27/12 , G02F1/1343 , G02F1/1339 , G02F1/1368 , G02F1/1345 , G02F1/1335 , H01L29/786 , G02F1/1337
Abstract: A thin film transistor substrate including a pixel region constructed with pixels, includes: gate signal lines provided in the pixel region and extending in a first direction; gate lead-out lines provided in the pixel region and extending in a second direction; a thin film transistor and a pixel electrode provided in each of the pixels; a common electrode provided across the pixels; and a common line electrically connected to the common electrode. The gate signal lines and the gate lead-out lines are connected to each other through a first contact hole at at least one of a plurality of intersections of the gate signal lines and the gate lead-out lines, and the common line covers the first contact hole in planar view of the thin film transistor substrate.
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公开(公告)号：US10935834B2
公开(公告)日：2021-03-02
申请号：US16727542
申请日：2019-12-26
Inventor： Shoichi Hirota , Shinichi Komura , Yoshifumi Sekiguchi , Tsunenori Yamamoto , Masaya Adachi
IPC: G02F1/1335 , H01L27/32 , G09G3/36 , G02F1/1343 , G02F1/1362 , G09G3/20
Abstract: A color display device comprises an array of a plurality of sub-pixels including a red sub-pixel, a blue sub-pixel, a first green sub-pixel and a second green sub-pixel. The first green sub-pixel and the second green sub-pixel are smaller than that of the red sub-pixel or the blue sub-pixel. The two adjacent first green sub-pixels are arranged in a first direction, the two adjacent second green sub-pixels are arranged in the first direction. The blue sub-pixel is directly adjacent to the red sub-pixel in a second direction; the blue sub-pixel is directly adjacent to the two first green sub-pixels and the two second green sub-pixels.
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公开(公告)号：US20210041749A1
公开(公告)日：2021-02-11
申请号：US17078628
申请日：2020-10-23
Inventor： Chikae MATSUI , Noboru KUNIMATSU , Hidehiro SONODA
IPC: G02F1/1337 , C09K19/56 , G02F1/1343
Abstract: An alignment film is given a 2-layer structure comprising a photoalignment film that is photoalignable and a low-resistivity alignment film whose resistivity is smaller than that of the photoalignment film. The photoalignment film is formed by a polyimide whose precursor is polyamide acid alkyl ester, the number molecular weight of the photoalignment film is large, and the stability of alignment of the photoalignment film by photoalignment is excellent. The low-resistivity alignment film is formed by a polyimide whose precursor is polyamide acid, the number molecular weight of the low-resistivity alignment film is small, and the resistivity of the low-resistivity alignment film is small. The 2-layer structure alignment film can be maintaining an excellent photoalignment characteristic, so DC afterimages can be controlled.
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公开(公告)号：US20210033901A1
公开(公告)日：2021-02-04
申请号：US17065871
申请日：2020-10-08
Inventor： Takahiro OCHIAI , Tohru SASAKI , Tetsuya NAGATA
IPC: G02F1/1339 , G02F1/1362 , G02F1/1368
Abstract: A column for defining the interval between a TFT substrate and an opposed substrate is formed at a crossing point between a drain line and a scanning line. At the crossing point where the column is formed, the drain line is formed to have a wider width to prevent light leakage. Further, at the crossing point where the column is formed, the scanning line is formed to have a narrower width to prevent increase of capacitance between the drain line and the scanning line. The column is formed at a crossing point corresponding to a specific color, e.g., a blue pixel B, so that a difference in transmittance and in characteristic of thin film transistors due to formation of the column is initially compensated.
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Patent Agency Ranking
公开(公告)号：US10908456B2
公开(公告)日：2021-02-02
申请号：US16667333
申请日：2019-10-29
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor： Tomoharu Notoshi , Yasuyuki Doi
IPC: G02F1/13357 , G09G3/34 , G02F1/1362 , G01F3/00 , G02F1/00 , H05B45/10
Abstract: A backlight module for a liquid crystal display includes: LEDs; LED drivers; a controller that outputs data and the latch signal to the LED drivers; data lines for transmitting the data; and latch signal lines for transmitting the latch signal. The latch signal lines are wired according to each of a plurality of first groups obtained by dividing LED drivers. The data lines are wired according to each of a plurality of second groups, which are constructed with a collection of at least one LED driver selected from each of the plurality of first groups without duplication, and each data line is commonly connected to at least one LED belonging to the corresponding second group.
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公开(公告)号：US20210018774A1
公开(公告)日：2021-01-21
申请号：US17062703
申请日：2020-10-05
Inventor： Koichi FUKUDA
IPC: G02F1/1333 , G02F1/1335
Abstract: An electronic device includes a liquid crystal display device having a first substrate, a second substrate bonded to the first substrate, with liquid crystal material held between the first substrate and the second substrate, and an upper polarizing plate affixed to the second substrate. A protective member is disposed over the upper polarizing plate, and an adhesive member is disposed between the protective member and the upper polarizing plate without an air layer between the protective member and the upper polarizing plate. The protective member is configured as a protective cover of the electronic device.
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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：US10884177B2
公开(公告)日：2021-01-05
申请号：US16444041
申请日：2019-06-18
Inventor： Eiji Oohira
IPC: F21V8/00 , G02F1/1333 , G02F1/13357 , G02F1/1335 , G02F1/1339
Abstract: A liquid crystal display device includes a LCD panel having a first polarizer, a first substrate, a second substrate and a second polarizer are sequentially provided from a front surface side, a frame which surrounds the LCD panel and has a first opening having first to fourth sides, a planar light source disposed on the rear surface side of the LCD panel in the first opening, a plurality of optical sheet groups which are disposed between the planar light source and the LCD panel, and an adhesive layer which has a second opening formed along the first to fourth sides of the frame. A front surface side of the adhesive layer is adhered to the LCD panel along at least the first side, and a rear surface side of the adhesive layer is adhered to the plurality of optical sheet groups and the frame along at least the first side.
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公开(公告)号：US10831075B2
公开(公告)日：2020-11-10
申请号：US16172861
申请日：2018-10-29
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor： Norimichi Shirai , Ryutaro Oke , Daisuke Kajita
IPC: G02F1/1362 , G09G3/36
Abstract: A display device is provided. The display device comprises a plurality of data lines extending in a first direction. The display device also comprises a plurality of gate lines. The plurality of gate lines comprises a first gate line, a second gate line and a third gate line extending in a second direction different than the first direction to form a matrix with the plurality of data lines. The first gate line and the second gate line are separated from each other and are arranged in a same row of the matrix. The display device further comprises a first gate connector line and a second gate connector line, respectively, electrically connecting the first gate line and the second gate line to one or two gate drivers. The first gate connector line and the second gate connector line extend in the first direction.
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