公开(公告)号：US11182034B2

公开(公告)日：2021-11-23

申请号：US17020187

申请日：2020-09-14

Applicant: Japan Display Inc.

Inventor： Yasuyuki Teranishi ,  Takafumi Suzuki ,  Kohei Azumi

IPC: G06F3/044 ,  G06F3/041

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.

公开(公告)号：US10540038B2

公开(公告)日：2020-01-21

申请号：US15966834

申请日：2018-04-30

Applicant: Japan Display Inc.

Inventor： Takafumi Suzuki ,  Yasuyuki Teranishi ,  Michita Kudo

IPC: G06F3/041 ,  G06F3/044

Abstract: A display device includes a substrate, a plurality of first electrodes, a plurality of second electrodes, at least one third electrode, and a drive circuit. The first electrodes are arrayed in an active area of the substrate. The second electrodes face the first electrodes and form capacitance between the first electrodes and the second electrodes. The third electrode is provided in a peripheral region positioned on the outside of the active area. The drive circuit supplies a drive signal having a phase determined based on a predetermined code to the first electrodes and the third electrode.

公开(公告)号：US10372267B2

公开(公告)日：2019-08-06

申请号：US15661248

申请日：2017-07-27

Applicant: Japan Display Inc.

Inventor： Takafumi Suzuki ,  Shota Hosaka ,  Koji Noguchi ,  Yasuyuki Teranishi

IPC: G01L1/14 ,  G06F3/041 ,  G06F3/044

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.

公开(公告)号：US09513749B2

公开(公告)日：2016-12-06

申请号：US14175330

申请日：2014-02-07

Applicant: Japan Display Inc.

Inventor： Takafumi Suzuki ,  Kohei Azumi

IPC: G06F3/044 ,  G02F1/1333

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04104 ,  G06F2203/04108

Abstract: In relation to touch sensors, technique capable of shortening total touch drive time and a touch detection period or suppressing increase thereof are provided. In a panel unit of a touch-sensor device, a touch drive unit generates a first pulse to an M-th pulses which are pulses of a plurality of types having mutually different cycles in accordance with differences in time constants with respect to paths including wirings of a peripheral area, touch drive electrodes, units of touch detection, touch detection electrodes, and wirings of the peripheral area through which pulses of touch drive signals to the plurality of touch drive electrodes are transmitted in a touch detection area in which the plurality of units of touch detection formed by pairs of the plurality of touch drive electrodes and the plurality of touch detection electrodes are formed like a matrix, and the touch drive unit applies the pulses.

Abstract translation: 关于触摸传感器，提供了能够缩短总触摸驱动时间和触摸检测周期或抑制其增加的技术。 在触摸传感器装置的面板单元中，触摸驱动单元根据包括布线的路径的时间常数的差异，向第M个脉冲生成具有相互不同周期的多种类型的脉冲的第一脉冲 外围区域的触摸驱动电极，触摸检测单元，触摸检测电极以及周边区域的布线，在多个触摸驱动电极的触摸检测区域中，触摸驱动电极向多个触摸驱动电极发送触摸驱动信号的脉冲， 由多个触摸驱动电极和多个触摸检测电极的成对形成的触摸检测单元形成为矩阵，触摸驱动单元施加脉冲。

公开(公告)号：US10579196B2

公开(公告)日：2020-03-03

申请号：US16025605

申请日：2018-07-02

Applicant: Japan Display Inc.

Inventor： Michita Kudo ,  Yasuyuki Teranishi ,  Takafumi Suzuki

IPC: G06F3/044 ,  G06F3/041 ,  G02F1/1333 ,  G02F1/1343 ,  G09G3/36 ,  G02F1/1335

Abstract: A display device includes a first substrate, a plurality of first electrodes, a second electrode, a third electrode, and a driver. The first electrodes are disposed in a display region of the first substrate. The second electrode faces the first electrodes in a direction perpendicular to the surface of the first substrate and forms capacitance between the second electrode and the first electrodes. The third electrode is provided in a peripheral region positioned on the outside of the display region and does not overlap the first electrodes in planar view. The driver supplies a drive signal to the third electrode and at least one of the first electrodes simultaneously.

公开(公告)号：US10564754B2

公开(公告)日：2020-02-18

申请号：US16026654

申请日：2018-07-03

Applicant: Japan Display Inc.

Inventor： Michita Kudo ,  Yasuyuki Teranishi ,  Takafumi Suzuki

IPC: G06F3/044 ,  G06F3/041 ,  G09G3/36

Abstract: A display device includes a display panel, a housing, a second electrode, and a driver. The display panel includes a substrate and a plurality of first electrodes arrayed in a display region of the substrate. The housing has at least a pair of walls facing each other in planar view and is provided with the display panel between the pair of walls. The second electrode is provided to the housing and positioned on the outer side than the display region in planar view and forms capacitance between the second electrode and the first electrodes. The driver supplies a drive signal to the second electrode.

公开(公告)号：US10558292B2

公开(公告)日：2020-02-11

申请号：US15913235

申请日：2018-03-06

Applicant: Japan Display Inc.

Inventor： Takafumi Suzuki ,  Yasuyuki Teranishi

IPC: G06F3/044 ,  G06F3/041

Abstract: A display device includes a substrate, pixel electrodes, first electrodes, gate lines, signal lines, switching elements, a conductor, and a driver. The pixel electrodes are arrayed in a display region of the substrate. The first electrodes are separated from the pixel electrodes in a direction perpendicular to the substrate. The gate lines are disposed between the substrate and the first electrodes in the direction perpendicular to the substrate and extend in a plane parallel to the surface of the substrate. The signal lines intersect the gate lines in planar view. The switching elements are provided at the intersections of the gate lines and the signal lines. The conductor is provided opposite to the gate lines and the signal lines across the substrate in the direction perpendicular to the substrate.

公开(公告)号：US20190220138A1

公开(公告)日：2019-07-18

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 ,  G09G3/36 ,  G02F1/137 ,  G02F1/1368 ,  G02F1/1362 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1339 ,  G02F1/1343

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.

公开(公告)号：US10310328B2

公开(公告)日：2019-06-04

申请号：US15478612

申请日：2017-04-04

Applicant: Japan Display Inc.

Inventor： Yosuke Nakamori ,  Takafumi Suzuki

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/1343

Abstract: According to one embodiment, a backlight device includes a case, a light guide in the case, a first optical sheet on the light guide, a second optical sheet on the first optical sheet, a first adhesive provided between the case and at least one of the first optical sheet and the second optical sheet, to stick at least one of the optical sheets to the case, and a light source in the case, configured to radiate light to the light guide.

公开(公告)号：US10234976B2

公开(公告)日：2019-03-19

申请号：US15658956

申请日：2017-07-25

Applicant: Japan Display Inc.

Inventor： Takafumi Suzuki ,  Shota Hosaka ,  Yosuke Nakamori

IPC: G06F3/041 ,  G02F1/1343 ,  G02F1/1333 ,  G06F3/044 ,  H01L27/32 ,  F21V8/00 ,  H01L51/52

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 a force; a second electrode facing the first electrode across a first layer deformable by the force; a conductor facing the second electrode across a second layer deformable by the force; and a force detection controller calculates a force signal value indicating the force, based on a first influence amount and a second influence amount, the first influence amount being an amount of influence added by the force to first capacitance between the first electrode and the second electrode, and the second influence amount being an amount of influence added by the force to second capacitance between the second electrode and the conductor.