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公开(公告)号：US09304640B2
公开(公告)日：2016-04-05
申请号：US14155036
申请日：2014-01-14
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.
Abstract translation: 检测到的电容的噪声抗扰度被抑制或抑制在设置在输入装置中的宽度不同于其它驱动电极的驱动电极上。 作为输入装置的触摸面板具有沿与X轴方向交叉的Y轴方向配置的X轴方向的多个驱动电极，配置在与X轴方向交叉的一侧的驱动电极 驱动电极并沿X轴方向延伸。 此外，触摸面板TP1具有沿Y轴方向延伸并且沿X轴方向布置的多个检测电极。 驱动电极的宽度小于驱动电极的宽度，并且检测电极包括用于经由驱动电极扩大与多个驱动电极相对的一侧上的检测电极的面积的扩展部。
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12.发明授权公开(公告)号：US11163411B2
公开(公告)日：2021-11-02
申请号：US16511793
申请日：2019-07-15
Applicant: Japan Display Inc.
Inventor： Takafumi Suzuki , Shota Hosaka , Yosuke Nakamori
IPC: G06F3/044 , G02F1/1343 , G02F1/1333 , G06F3/041
Abstract: A force detection apparatus is provided and includes a first electrode facing an input surface to which an object to be detected applies force, and configured to be supplied with a reference potential; a second electrode and a third electrode facing the first electrode; a first conductor arranged between the first electrode, and the second and third electrodes, and configured to be supplied with a drive signal; a first dielectric layer arranged between the first electrode and the first conductor; and a second dielectric layer arranged between the first conductor, and the second and third electrodes, wherein the second electrode is configured to be supplied with the reference potential, and wherein a signal that is same as the drive signal is supplied in synchronization with the drive signal to the third electrode.
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公开(公告)号：US10809851B2
公开(公告)日：2020-10-20
申请号：US16363199
申请日：2019-03-25
Applicant: Japan Display Inc.
Inventor： Hayato Kurasawa , Hiroshi Mizuhashi , Koji Noguchi , Takafumi Suzuki
IPC: G06F3/041 , G02F1/1333 , G02F1/1335 , G02F1/1339 , G02F1/1343 , G02F1/1362 , G02F1/1368 , G02F1/137 , G06F3/044 , G09G3/36
Abstract: According to one embodiment, a display device includes a plurality of gate lines, a plurality of data lines intersecting with the gate lines, a plurality of pixel electrodes provided in areas defined by the gate lines and the data lines, and a sensor drive controller which includes a plurality of common electrodes facing the pixel electrodes and detects a touch by using the common electrodes. The sensor drive controller selects at least one of the common electrodes as a sensor electrode, detects a touch by using the sensor electrode, and inputs, to the other common electrodes, a guard signal for reducing generation of capacitance between the other common electrodes and the sensor electrode.
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公开(公告)号：US10761640B2
公开(公告)日：2020-09-01
申请号：US15872480
申请日：2018-01-16
Applicant: Japan Display Inc.
Inventor： Yasuyuki Teranishi , Takafumi Suzuki , Michita Kudo
Abstract: According to one embodiment, a display device includes first electrodes overlapping a display area, a cover base covering the display area and a frame area, a second electrode arranged in the cover base and overlapping the frame area, a touch detection driver configured to output a drive signal to the second electrode, and a level shifter arranged between the second electrode and the touch detection driver, and configured to increase a signal level of the drive signal and output the drive signal having the increased signal level to the second electrode. The touch detection driver is configured to detect contact or proximity to an object with the frame area based on electrostatic capacitance between the first electrodes and the second electrode.
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15.发明授权公开(公告)号：US10353507B2
公开(公告)日：2019-07-16
申请号：US15665761
申请日：2017-08-01
Applicant: Japan Display Inc.
Inventor： Takafumi Suzuki , Shota Hosaka , Yosuke Nakamori
IPC: G06F3/044 , G06F3/041 , G02F1/1343 , G02F1/1333
Abstract: According to an aspect, a force detection apparatus includes: a first electrode facing an input surface to which an object to be detected applies force, and configured to be supplied with a drive signal; a conductor facing the first electrode, and supplied with a reference potential; a second electrode and a third electrode arranged between the first electrode and the conductor; a first dielectric layer arranged between the first electrode, and the second electrode and the third electrode; and a second dielectric layer arranged between the second electrode and the third electrode, and the conductor. The second electrode is supplied with the reference potential. A signal that is the same as the drive signal is supplied in synchronization with the drive signal to the third electrode.
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Patent Agency Ranking
公开(公告)号：US10282017B2
公开(公告)日：2019-05-07
申请号：US15359473
申请日：2016-11-22
Applicant: Japan Display Inc.
Inventor： Hayato Kurasawa , Hiroshi Mizuhashi , Koji Noguchi , Takafumi Suzuki
IPC: G06F3/041 , G02F1/1333 , G02F1/1335 , G02F1/1339 , G02F1/1343 , G02F1/1362 , G02F1/1368 , G02F1/137 , G06F3/044 , G09G3/36
Abstract: According to one embodiment, a display device includes a plurality of gate lines, a plurality of data lines intersecting with the gate lines, a plurality of pixel electrodes provided in areas defined by the gate lines and the data lines, and a sensor drive controller which includes a plurality of common electrodes facing the pixel electrodes and detects a touch by using the common electrodes. The sensor drive controller selects at least one of the common electrodes as a sensor electrode, detects a touch by using the sensor electrode, and inputs, to the other common electrodes, a guard signal for reducing generation of capacitance between the other common electrodes and the sensor electrode.
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公开(公告)号：US10156933B2
公开(公告)日：2018-12-18
申请号：US15415541
申请日：2017-01-25
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Takafumi Suzuki
Abstract: According to an aspect, a display device with a touch detection function includes: a first substrate; a plurality of pixel electrodes in a first region; a display functional layer; a plurality of first drive electrodes facing the pixel electrodes in a perpendicular direction with respect to a surface of the first substrate; and a plurality of touch detection electrodes facing the first drive electrodes and extending in a direction different from a direction in which the first drive electrodes are extended. At least one touch detection electrode of the plurality of touch detection electrodes extends from the first region to a second region adjacent to the first region. A second drive electrode capacitively-coupled to the at least one touch detection electrode is further provided in the second region.
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公开(公告)号：US10775928B2
公开(公告)日：2020-09-15
申请号：US16532072
申请日：2019-08-05
Applicant: Japan Display Inc.
Inventor： Takafumi Suzuki , Shota Hosaka , Koji Noguchi , Yasuyuki Teranishi
Abstract: A force detection apparatus includes: a force detector that includes an electrode and a conductor facing the electrode across a first and a second layers and outputs a force signal value before correction; and a force detection controller outputting a force signal value after correction having a linear relationship with a force. In a first range of force in which the first layer is deformed and the second layer is not deformed, the force detection controller calculates the force signal value after correction, based on a product of the force and a first constant. In a second range of force in which the first and second layers are deformed, the force detection controller calculates the force signal value after correction, based on a sum of a product of a threshold and the first constant and a product of a difference between the force and the threshold and a second constant.
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公开(公告)号：US10592025B2
公开(公告)日：2020-03-17
申请号：US15692514
申请日：2017-08-31
Applicant: Japan Display Inc.
Inventor： Koji Noguchi , Takafumi Suzuki , Michita Kudo
IPC: G06F3/041 , G06F3/044 , G02F1/1333 , G02F1/1343
Abstract: According to one embodiment, a display device includes a display panel including a first substrate including a display area and a first detection electrode, and a second force sensing electrode opposing the display area and the first detection electrode with a gap therebetween. The second force sensing electrode includes a central portion opposing a central portion of the display region, a peripheral portion located to surround the central portion and a reinforcing structure which reinforces the peripheral portion, and the gap between the central portion and the first detection electrode is greater than a gap between the peripheral portion and the first detection electrode.
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公开(公告)号：US10365759B2
公开(公告)日：2019-07-30
申请号：US16244558
申请日：2019-01-10
Applicant: Japan Display Inc.
Inventor： Takafumi Suzuki
IPC: G06F3/041 , G02F1/1333 , G02F1/1343 , G06F3/044
Abstract: A display device includes: a display panel having a front surface and a back surface and displaying an image on the front surface; a plurality of detection electrodes overlapping the display panel when seen in a plan view; and a shield electrode overlapping the display panel when seen in a plan view. The shield electrode is arranged on a side opposite to a side of the front surface with respect to the plurality of detection electrodes. Based on electrostatic capacitance of the shield electrode, proximity or contact of an object to the front surface is detected, and based on electrostatic capacitance of each of the plurality of detection electrodes, a position of the object is detected.
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