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281.发明授权公开(公告)号：US10692457B2
公开(公告)日：2020-06-23
申请号：US15864836
申请日：2018-01-08
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor： Yoshihiro Imajo , Masahiro Ishii , Kenta Endo , Tetsuo Fukami
Abstract: A driving circuit including an output circuit that outputs a signal to a lead line electrically connected to a signal line provided in a display panel; and an output transistor that is provided in the output circuit and connected to an output terminal of the output circuit. An on-resistance value of the output transistor is set according to a resistance value of the lead line electrically connected to the output transistor.
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公开(公告)号：US10690956B2
公开(公告)日：2020-06-23
申请号：US15695711
申请日：2017-09-05
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor： Tomoharu Notoshi , Ryosuke Yabuki
IPC: G02F1/1335 , G02F1/1333
Abstract: A liquid crystal display device is provided. The liquid crystal display device includes: a liquid crystal cell including a liquid crystal layer interposed between a pair of transparent substrates; a backlight unit behind the liquid crystal cell; a polarizer on a surface of the liquid crystal cell, the surface opposing the backlight unit; a transparent reinforcement plate that is between the liquid crystal cell and the backlight unit and supports the polarizer; and an intermediate frame, which is a middle frame, including a protrusion protruding toward a space between the backlight unit and the transparent reinforcement plate. The transparent reinforcement plate rests on the protrusion of the intermediate frame.
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公开(公告)号：US20200175946A1
公开(公告)日：2020-06-04
申请号：US16694363
申请日：2019-11-25
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor： Hideyuki NAKANISHI , Toshikazu KOUDO , Katsuhiro KIKUCHI
Abstract: A display device according to present disclosure 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 acquires input image data and generates first image data corresponding to the first image and second image data corresponding to the second image based on the input image data, wherein the image processor includes a first filter circuit that performs first low-pass filter processing on the input image data, and the first filter circuit reduces a degree of the first low-pass filter processing when input gradation of the input image data is less than first gradation as compared with a case that the input gradation is greater than or equal to the first gradation.
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公开(公告)号：US20200159056A1
公开(公告)日：2020-05-21
申请号：US16194390
申请日：2018-11-19
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor： Takashi MIBU
IPC: G02F1/1339 , G02F1/1333 , G02F1/1343 , G02F1/1335 , G02B5/20
Abstract: Examples of display devices are described herein. In an example, a display device comprises a color filter (CF) substrate having a black matrix extending in a first direction and a second direction different from the first direction, wherein, in plan view, two adjacent color filters of different colors are aligned along the first direction and two adjacent color filters of a same color are aligned along the second direction. The display device comprises a plurality of spacers arranged in the first direction, wherein the plurality of spacers comprises a first, second and third spacer arranged adjacent to each other. The spacers are arranged, such that along the first direction or the second direction, a distance between a center of the first spacer and a center of the second spacer is different from a distance between the center of the second spacer and a center of the third spacer.
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公开(公告)号：US10656481B2
公开(公告)日：2020-05-19
申请号：US15941934
申请日：2018-03-30
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor： Ryouichi Ootsu , Hiroaki Iwato
IPC: G02F1/1362 , G02F1/1335 , G02F1/1368 , G02F1/1343 , G02F1/1333 , G02F1/135 , G02B5/00
Abstract: A liquid crystal display device is disclosed. The liquid crystal display device includes a display panel that includes four sides. One of the four sides has a cut edge. The display panel includes a display region in which an image is to be displayed; a non-display region that surrounds the display region and that includes a non-light transmitting layer that restricts light transmission therethrough; and a plurality of slits disposed in the non-light transmitting layer. An edge of the non-light transmitting layer is co-planar with the cut edge. The plurality of slits are parallel to the cut edge.
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Patent Agency Ranking
公开(公告)号：US20200150797A1
公开(公告)日：2020-05-14
申请号：US16738527
申请日：2020-01-09
Inventor： Hiroshi ESAKA , Shouji IKEDA , Kouichi ANNO
IPC: G06F3/044 , G02F1/1333 , G06F1/16 , H01L27/32
Abstract: An electrostatic capacitive coupling type touch panel including an input region having four sides, a peripheral region around the input region, terminals formed in the peripheral region along a first side of the input region, wirings formed in the peripheral region along second, third and fourth sides of the input region, and the input region having X and Y electrodes crossing. The wirings are connected between corresponding X or Y electrodes and wiring terminals plurality of terminals. A dummy wiring, which is not connected to any of the X electrodes or Y electrodes, is provided outside the wiring formed in a farthest position from the input region, and the dummy wiring extends through the peripheral region along the second, third and fourth sides of the input region, and electrically connects to at least one dummy wiring terminal.
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287.发明申请公开(公告)号：US20200089030A1
公开(公告)日：2020-03-19
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: G02F1/1339 , G02F1/1333
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：US10593281B2
公开(公告)日：2020-03-17
申请号：US15901386
申请日：2018-02-21
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor： Yoshihiro Imajo , Kazunori Inoue , Kenta Endo
Abstract: A drive circuit includes an output circuit provided in a display panel to output a gate-on voltage and a gate-off voltage to a plurality of gate lines. The plurality of gate lines include first to sixth gate lines sequentially disposed in a scanning direction. A first transistor is put into an on state to electrically connect the first gate line and the third gate line, a second transistor is put into the on state to electrically connect the second gate line and the fourth gate line, the third transistor is put into the on state to electrically connect the third gate line and the fifth gate line, and the fourth transistor is put into the on state to electrically connect the fourth gate line and the sixth gate line, after the output circuit outputs the gate-on voltage to the first to fourth gate line.
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公开(公告)号：US20200064691A1
公开(公告)日：2020-02-27
申请号：US16667333
申请日：2019-10-29
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor： Tomoharu NOTOSHI , Yasuyuki DOI
IPC: G02F1/1335 , G02F1/1362 , H05B33/08 , G02F1/00 , G01F3/00
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：US10564459B2
公开(公告)日：2020-02-18
申请号：US16161988
申请日：2018-10-16
Inventor： Hideo Tanabe , Masaru Takabatake , Toshiki Kaneko , Atsushi Hasegawa , Hiroko Sehata
IPC: G02F1/1333 , G02F1/1362 , G02F1/1368 , H01L27/12 , H01L29/786 , G02F1/1335 , G02F1/1343
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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