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公开(公告)号：US10545589B2
公开(公告)日：2020-01-28
申请号：US15959699
申请日：2018-04-23
Applicant: Japan Display Inc.
Inventor： Fumitaka Gotoh , Hiroshi Mizuhashi , Kohei Azumi
IPC: G06F3/041
Abstract: According to one embodiment, a touch detection device includes a touch panel including a transmitting coil and a receiving coil, the touch panel provided with a display function and a touch detection function, and a differential amplifier including two input terminals connected to first and second terminals of the receiving coil.
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公开(公告)号：US10437379B2
公开(公告)日：2019-10-08
申请号：US15684559
申请日：2017-08-23
Applicant: Japan Display Inc.
Inventor： Yasuyuki Teranishi , Takafumi Suzuki , Kohei Azumi
Abstract: A noise immunity of a detected capacitance is prevented or inhibited from lowering on a driving electrode different in width from the other driving electrodes, provided in an input device. A touch panel serving as an input device has a plurality of driving electrodes extending in an X-axis direction and arranged in a Y-axis direction intersecting with the X-axis direction, and a driving electrode arranged outside one side of an arrangement of the driving electrodes and extending in the X-axis direction. Further, the touch panel TP1 has a plurality of detecting electrodes extending in the Y-axis direction and arranged in the X-axis direction. The width of the driving electrode is smaller than the widths of the driving electrodes and the detecting electrode includes an expanding portion for expanding the area of the detecting electrode on the side opposite to the plurality of driving electrodes via the driving electrode.
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公开(公告)号：US10409409B2
公开(公告)日：2019-09-10
申请号：US15928544
申请日：2018-03-22
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Yoshitoshi Kida , Kohei Azumi
Abstract: A display apparatus includes: a display device; a touch detection device; and a driver unit driving the display device so as to sequentially display M horizontal lines in each of plural unit drive periods forming one frame period and driving the touch detection device in N touch detection periods provided in each unit drive period, in which N is lower than M.
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公开(公告)号：US10310664B2
公开(公告)日：2019-06-04
申请号：US15978890
申请日：2018-05-14
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Yoshitoshi Kida , Kohei Azumi , Takayuki Nakanishi , Hiroshi Mizuhashi
IPC: G06F3/041 , G06F3/044 , G02F1/1333 , G02F1/1343 , G02F1/1337 , G02F1/1362 , G02F1/1335 , G02F1/1368
Abstract: A display device including a display section having a plurality of pixel electrodes; and a plurality of drive electrodes extending in a first direction and arranged side-by-side in a second direction. Each of the drive electrodes has a width in the second direction corresponding to a size of the two or more pixel electrodes, and has one or more slits extending in the first direction.
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公开(公告)号：US10146389B2
公开(公告)日：2018-12-04
申请号：US15652685
申请日：2017-07-18
Applicant: Japan Display Inc.
Inventor： Yoshitoshi Kida , Koji Noguchi , Yasuyuki Teranishi , Hiroshi Mizuhashi , Kohei Azumi
Abstract: According to an aspect, a display device with a touch detection function includes a plurality of drive electrodes that face a plurality of pixel electrodes in an orthogonal direction to the surface of the substrate, and extend in a direction parallel to the direction in which a plurality of signal lines extend. The display device with a touch detection function also includes a scan driving unit that applies a touch drive signal to a signal line that faces, in an overlapping manner in the orthogonal direction, a drive electrode to which the touch drive signal is applied.
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Patent Agency Ranking
公开(公告)号：US10042454B2
公开(公告)日：2018-08-07
申请号：US15818411
申请日：2017-11-20
Applicant: Japan Display Inc.
Inventor： Yoshitoshi Kida , Koji Noguchi , Hiroshi Mizuhashi , Kohei Azumi
IPC: G06F3/041 , H03K17/96 , G06F3/044 , G02F1/1333
Abstract: There are provided a display panel with a touch detection function, a drive circuit, and an electronic unit, which make it possible to realize many functions related to touch detection. The display panel includes: one or more display elements; one or more drive electrodes extending in one direction; an electrode drive section integrated into a chip, and applying a drive signal to the drive electrodes; and one or more touch detection electrodes extending in a direction intersecting the direction in which the drive electrodes extend.
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公开(公告)号：US20180074633A1
公开(公告)日：2018-03-15
申请号：US15818411
申请日：2017-11-20
Applicant: Japan Display Inc.
Inventor： Yoshitoshi Kida , Koji Noguchi , Hiroshi Mizuhashi , Kohei Azumi
IPC: G06F3/041 , H03K17/96 , G06F3/044 , G02F1/1333
CPC classification number: G06F3/0412 , G02F1/13338 , G06F3/044 , H03K17/9622 , H03K2217/96031
Abstract: There are provided a display panel with a touch detection function, a drive circuit, and an electronic unit, which make it possible to realize many functions related to touch detection. The display panel includes: one or more display elements; one or more drive electrodes extending in one direction; an electrode drive section integrated into a chip, and applying a drive signal to the drive electrodes; and one or more touch detection electrodes extending in a direction intersecting the direction in which the drive electrodes extend.
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公开(公告)号：US09811189B2
公开(公告)日：2017-11-07
申请号：US14732237
申请日：2015-06-05
Applicant: Japan Display Inc.
Inventor： Yoshihiro Kotani , Hiroshi Mizuhashi , Hayato Kurasawa , Kohei Azumi
IPC: G06F3/041 , G06F3/044 , G09G3/36 , G02F1/1333
CPC classification number: G06F3/0412 , G02F1/13338 , G06F3/0416 , G06F3/044 , G09G3/3614 , G09G3/3648 , G09G3/3688 , G09G2310/0291 , G09G2310/08 , G09G2354/00
Abstract: A display device comprises gate lines extending in a first direction, drain lines extending in a second direction, common electrodes extending in the second direction, and a drive circuit. The common electrodes are configured to be partitioned over drain lines of pixels of a specific color and to be used also as touch panel scan electrodes. The drive circuit is configured so that write periods for driving the gate lines and touch sensing periods for driving the scan electrodes are alternately repeated in each frame period, signal polarity of drain lines for colors other than the specific color is inverted every frame, signal polarity of drain lines for the specific color is inverted at a cycle shorter than one frame, and the cycle of the signal polarity inversion of the drain lines for the specific color can be changed.
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公开(公告)号：US09798415B2
公开(公告)日：2017-10-24
申请号：US14851319
申请日：2015-09-11
Applicant: Japan Display Inc.
Inventor： Kohei Azumi , Hidetoshi Komatsu , Jin Ota , Hiroshi Mizuhashi
CPC classification number: G06F3/0416 , G06F2203/04108 , G09G3/3607 , G09G3/3655 , G09G3/3674 , G09G3/3677 , G09G3/3685 , G09G2300/0426 , G09G2300/0809 , G09G2310/08 , G09G2330/028 , G09G2330/06
Abstract: According to one embodiment, a display device includes a plurality of display elements arranged in a matrix, a plurality of scanning lines, a plurality of signal lines, and a controller configured to control display by sequentially supplying an image signal and a control signal to the plurality of signal lines and the plurality of scanning lines, respectively, wherein the controller repeats a display period in which the display is controlled and a display blanking period in which the display is paused to display a frame image, and at least two types of display periods with different lengths are used when a frame image is displayed.
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公开(公告)号：US09766746B2
公开(公告)日：2017-09-19
申请号：US15059916
申请日：2016-03-03
Applicant: Japan Display Inc.
Inventor： Yasuyuki Teranishi , Takafumi Suzuki , Kohei Azumi
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044
Abstract: A noise immunity of a detected capacitance is prevented or inhibited from lowering on a driving electrode different in width from the other driving electrodes, provided in an input device. A touch panel serving as an input device has a plurality of driving electrodes extending in an X-axis direction and arranged in a Y-axis direction intersecting with the X-axis direction, and a driving electrode arranged outside one side of an arrangement of the driving electrodes and extending in the X-axis direction. Further, the touch panel TP1 has a plurality of detecting electrodes extending in the Y-axis direction and arranged in the X-axis direction. The width of the driving electrode is smaller than the widths of the driving electrodes and the detecting electrode includes an expanding portion for expanding the area of the detecting electrode on the side opposite to the plurality of driving electrodes via the driving electrode.
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