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公开(公告)号：US10255867B2
公开(公告)日：2019-04-09
申请号：US15475181
申请日：2017-03-31
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor： Katsuji Tanaka , Teruhisa Nakagawa
IPC: G09G3/36 , G02F1/1343 , G02F1/1362 , G02F1/1345 , G02F1/1368
Abstract: A display device includes a plurality of driving circuits, a plurality of terminals formed in each of the plurality of driving circuits, a plurality of signal lines connected to the plurality of terminals, a plurality of pixel electrodes, each of the plurality of pixel electrodes connected to each of the plurality of signal lines; and a switch configured to change a connection mode between the plurality of terminals and the plurality of signal lines. The plurality of signal lines includes a first line, a second line and a third line arrayed in this order. The plurality of terminals includes a first terminal. The switch, configured to change from a first connection mode to a second connection mode, the first terminal connecting the first line and the second line in the first connection mode, and the first terminal connecting the second line and the third line in the second connection mode.
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公开(公告)号：US10249257B2
公开(公告)日：2019-04-02
申请号：US15280573
申请日：2016-09-29
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor： Yoshihisa Ooishi , Daisuke Kajita , Genshiro Kawachi , Sachiko Yamazaki , Kuniaki Amano
IPC: G09G3/36 , G02F1/1368 , G02F1/1362 , G02F1/1343
Abstract: A display device comprises: data lines extending in a first direction; gate lines extending in a second direction, and being divided into groups each of which has the gate lines adjacent in the first direction; selection signal supplying wirings each of which is provided in each group, and connected to each control electrode of the selector transistors corresponding to the group; gate voltage supplying wirings connected to the other conductive electrode of each of the selector transistors corresponding to the group; and wherein a gate driver supplies a second gate voltage having a voltage level lower than that of a first gate voltage to at least one of the gate voltage supplying wirings in each of the groups before supplying the first gate voltage in order to turn on a pixel transistor disposed in an intersection portion of the data line and the gate line.
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公开(公告)号：US10228581B2
公开(公告)日：2019-03-12
申请号：US15879550
申请日：2018-01-25
Inventor： Eiji Oohira
IPC: G06F3/041 , G02F1/1333 , G06F3/044 , G02F1/1335 , G02F1/1339 , G02F1/1343 , G02F1/1345
Abstract: A portable device and method of manufacturing a display device includes a display panel having a glass substrate and a polarizer adhered to the glass substrate, a touch panel which is made of resin material and adhered to the polarizer of the display panel by a first adhesive material, and a front window which is made of glass and adhered to the touch panel by a second adhesive material. One of the first adhesive material and the second adhesive material is an adhesive sheet, and an other of the first adhesive material and the second adhesive material is an ultraviolet-curing adhesive material.
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公开(公告)号：US20190073063A1
公开(公告)日：2019-03-07
申请号：US16181471
申请日：2018-11-06
Inventor： Hiroshi ESAKA , Shouji IKEDA , Kouichi ANNO
IPC: G06F3/044 , H01L27/32 , G02F1/1333 , G06F1/16
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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公开(公告)号：US10223994B2
公开(公告)日：2019-03-05
申请号：US15862185
申请日：2018-01-04
Inventor： Toshio Miyazawa , Iwao Takemoto , Atsushi Hasegawa , Masahiro Maki , Kazutaka Goto
Abstract: A display driving circuit having a shift register is formed on the display panel. The shift register includes a first stage having first and second transistors and a second stage having a third and fourth transistor. A voltage of a control electrode of the first transistor is boosted by a voltage of a first pulse line changing from low to high. In an On state, the second transistor connects the control electrode of the first transistor and a constant voltage line. A voltage of a control electrode of the third transistor is boosted by a voltage of a second pulse line changing from low to high. In an On state, the fourth transistor connects the control electrode of the third transistor and a constant voltage line. The fourth transistor is switched on by a signal from the first stage.
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Patent Agency Ranking
公开(公告)号：US10216021B2
公开(公告)日：2019-02-26
申请号：US15453619
申请日：2017-03-08
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor： Katsuyuki Awazu , Hidenori Kikuchi , Hiroaki Sato
IPC: G06F1/16 , G02F1/1333
Abstract: A display device (100) comprising: a display panel (120); a middle frame (130) holding the display panel (120); and an upper frame (110) covering the display panel (120) from a display surface side. The middle frame (130) includes a placing portion (133) on which a peripheral portion of the display panel (120) is placed, the upper frame (110) includes a frame portion (115), which is disposed opposite to the peripheral portion of the display panel (120). A distance between the placing portion (133) and the frame portion (115), which are disposed opposite to each other on corner portions of the display panel (120), differs from a distance between the placing portion (133) and the frame portion (115), which are disposed opposite to each other on a central portion of the display panel (120).
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公开(公告)号：US20190050105A1
公开(公告)日：2019-02-14
申请号：US16161144
申请日：2018-10-16
Inventor： Kouichi Anno
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044 , G06F3/045 , G06F2203/04103 , G06F2203/04111 , G06F2203/04112 , G09G3/36
Abstract: A display device with a touch panel includes a display panel, and a touch panel formed above the display panel. The touch panel includes X electrodes which extend in a first direction, and Y electrodes which extend in a second direction different from the first direction. The X electrodes and the Y electrodes respectively include intersection portions each formed where the X electrodes and the Y electrodes overlap each other, and electrode portions each formed between the intersection portions, wherein the electrode portions of one of the X electrodes is smaller in area than the electrode portions of one of the Y electrodes, and wherein floating electrodes are formed close to the electrode portion of the one of the X electrodes or Y electrodes, and over a reduced portion of the X electrode.
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公开(公告)号：US20190049775A1
公开(公告)日：2019-02-14
申请号：US16161988
申请日：2018-10-16
Inventor： Hideo TANABE , Masaru TAKABATAKE , Toshiki KANEKO , Atsushi HASEGAWA , Hiroko SEHATA
IPC: G02F1/1333 , H01L29/786 , H01L27/12 , G02F1/1362 , G02F1/1368 , G02F1/1335 , G02F1/1343
CPC classification number: G02F1/133345 , G02F1/133305 , G02F1/133504 , G02F1/133555 , G02F1/134363 , G02F1/136213 , G02F1/136227 , G02F1/1368 , G02F2001/13685 , H01L27/124 , H01L27/1248 , H01L29/78675
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：US10197860B2
公开(公告)日：2019-02-05
申请号：US15719706
申请日：2017-09-29
Inventor： Hidehiro Sonoda , Chikae Matsui , Noboru Kunimatsu
IPC: G02F1/1337 , G02F1/1339 , G02F1/1333 , G02F1/1343 , G02F1/1368 , G02F1/1335 , G02F1/1362
Abstract: A liquid crystal display device includes a first substrate, a first alignment film formed over the first substrate, a second substrate, a second alignment film formed over the second substrate, a liquid crystal layer sandwiched between the first alignment film and the second alignment film, and a projecting portion formed over the second substrate. The first alignment film is a photo alignment film, and a thickness “d2” of the second alignment film over the projecting portion and a film thickness “d1” of a portion of the first alignment film facing the projecting portion satisfy formula (2), d2
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公开(公告)号：US10191341B2
公开(公告)日：2019-01-29
申请号：US15666091
申请日：2017-08-01
Applicant: Panasonic Liquid Crystal Display Co., Ltd.
Inventor： Kikuo Ono
IPC: G02F1/1368 , G02F1/1362 , H01L27/12 , G02F1/1333 , G02F1/1343
Abstract: A display device includes a plurality of pixels arranged in a matrix. Each of the plurality of pixels includes a transistor and a pixel electrode arranged above the transistor through a first protective film and a second protective film. Among the plurality of pixels, the pixel electrodes of two pixels adjacent in a column direction are connected to corresponding source electrodes of the two pixels through second and third contact holes respectively. The second and third contact holes are formed in the first protective film within a first contact hole that is formed in the second protective film.
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