公开(公告)号：US10976861B2

公开(公告)日：2021-04-13

申请号：US16725408

申请日：2019-12-23

Applicant: Japan Display Inc.

Inventor： Kisho Yamamoto ,  Naoki Takada ,  Hiroshi Yamaguchi

IPC: G06F3/041 ,  G06F3/044

Abstract: According to an aspect, a detection device includes: a plurality of first sensor electrodes disposed side by side in a first direction and a second direction intersecting the first direction; and a plurality of second sensor electrodes disposed side by side in the first direction and the second direction. One of the second sensor electrodes overlaps a plurality of first sensor electrodes out of the first sensor electrodes in planar view. Each of the second sensor electrodes has a plurality of electric-field transmission regions. One of the electric-field transmission regions overlaps a corresponding one of the first sensor electrodes in planar view and does not straddle two first sensor electrodes in planar view.

公开(公告)号：US10936104B2

公开(公告)日：2021-03-02

申请号：US16740073

申请日：2020-01-10

Applicant: JAPAN DISPLAY INC.

Inventor： Chihiro Tanaka ,  Naoki Takada ,  Toshihiko Tanaka ,  Hayato Kurasawa ,  Koji Ishizaki ,  Tatsuya Wakimoto ,  Masaki Miyatake

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/044 ,  G02F1/1339

Abstract: According to one embodiment, a touch detection device includes first detection electrodes in a detection area, second detection electrodes in the detection area, extending to intersect the first detection electrodes, first control lines connected to the first detection electrodes, respectively, and provided in a non-detection area, and second control lines connected to the second detection electrodes, respectively, and provided in the non-detection area. The second control lines overlap the first control lines at a plurality of positions as seen in plan view, such that areas of overlapping portions in which the first control lines overlap the second control lines are substantially equalized.

公开(公告)号：US10831306B2

公开(公告)日：2020-11-10

申请号：US16157774

申请日：2018-10-11

Applicant: Japan Display Inc.

Inventor： Toshihiko Tanaka ,  Naoki Takada ,  Chihiro Tanaka

IPC: G06F3/041 ,  G06F3/044

Abstract: There is provided a display device equipped with a touch sensor that can decrease the area of the mounting surface with electromagnetic interference reduced. The display device includes a plurality of drive electrodes, an output circuit connected to the plurality of drive electrodes, a power supply circuit, and a resistor element. A power of the output circuit is connected to the power supply circuit through the resistor element.

公开(公告)号：US10775944B2

公开(公告)日：2020-09-15

申请号：US16122411

申请日：2018-09-05

Applicant: Japan Display Inc.

Inventor： Naoki Takada

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1343 ,  H01L27/32 ,  H05K1/18

Abstract: According to one embodiment, a display device includes a display panel, a cover member includes an opening which opposes the display panel and a sensor device provided around the opening in the cover member, and the sensor device includes a button portion includes a plurality of first sensors arranged at a first interval along a first direction, a bar portion includes plurality of second sensors arranged at a second interval along the first direction, the second sensors being smaller than the first sensors and a volume portion formed into a ring shape and including a plurality of third sensors arranged along a circumferential direction thereof.

公开(公告)号：US10521061B2

公开(公告)日：2019-12-31

申请号：US15921952

申请日：2018-03-15

Applicant: Japan Display Inc.

Inventor： Naoki Takada ,  Hayato Kurasawa

IPC: G06F3/044 ,  G06F3/047 ,  G06F3/0488 ,  G06F3/041

Abstract: According to an aspect, a touch detection device includes: a plurality of drive electrodes; a plurality of detection electrodes; a detection circuit electrically coupled to a first predetermined number or less of the detection electrodes; and a selection circuit configured to be electrically coupled to the plurality of detection electrodes and the detection circuit, wherein a second predetermined number as the number of the plurality of detection electrodes is larger than the first predetermined number, the selection circuit selects at least one of groups each including the first predetermined number or less of the detection electrodes, the detection circuit performs first touch detection based on self-capacitance of the selected detection electrodes, and the detection circuit performs second touch detection based on mutual capacitance between the detection electrodes that perform the first touch detection and the drive electrodes.

公开(公告)号：US10386955B2

公开(公告)日：2019-08-20

申请号：US15373201

申请日：2016-12-08

Applicant: Japan Display Inc.

Inventor： Teppei Yamada ,  Masaki Murase ,  Yoshiyuki Ikehata ,  Daisuke Ito ,  Naoki Takada

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/133 ,  G09G3/20

Abstract: A liquid crystal display device includes a panel unit and a driving unit driving the panel unit. The driving unit includes as operation modes a first mode in which a detection operation of a first external object is performed in units of a divided region obtained by dividing an entire surface of a touch region of the panel unit and a second mode in which a detection operation of a second external object is performed on the entire surface of the touch region of the panel unit. The first mode is a mode detecting, in units of the divided region of the panel unit, a contact position of the first external object with each divided region, and the second mode is a mode detecting, on the entire surface of the panel unit, whether or not the second external object approaches the entire surface.

公开(公告)号：US20190163299A1

公开(公告)日：2019-05-30

申请号：US16169439

申请日：2018-10-24

Applicant: Japan Display Inc.

Inventor： Takayuki Nakanishi ,  Naoki Takada ,  Fumitaka Gotoh ,  Shota Hosaka

IPC: G06F3/044 ,  H03K17/96 ,  H03K17/955 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/041662 ,  G06F3/0445 ,  G06F3/0446 ,  G06F3/0448 ,  G06F2203/04103 ,  G06F2203/04108 ,  H03K17/955 ,  H03K17/962 ,  H03K2017/9615

Abstract: A proximity sensor is arranged with a first electrode input with a first signal, a second electrode input with a second signal different from the first signal, a third electrode arranged closer to the first electrode than the second electrode, and the second signal has a reverse phase of the first signal.

公开(公告)号：US20180275794A1

公开(公告)日：2018-09-27

申请号：US15921952

申请日：2018-03-15

Applicant: Japan Display Inc.

Inventor： Naoki Takada ,  Hayato Kurasawa

IPC: G06F3/044 ,  G06F3/0488 ,  G06F3/041 ,  G06F3/047

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/047 ,  G06F3/0488 ,  G06F2203/04104

Abstract: According to an aspect, a touch detection device includes: a plurality of drive electrodes; a plurality of detection electrodes; a detection circuit electrically coupled to a first predetermined number or less of the detection electrodes; and a selection circuit configured to be electrically coupled to the plurality of detection electrodes and the detection circuit, wherein a second predetermined number as the number of the plurality of detection electrodes is larger than the first predetermined number, the selection circuit selects at least one of groups each including the first predetermined number or less of the detection electrodes, the detection circuit performs first touch detection based on self-capacitance of the selected detection electrodes, and the detection circuit performs second touch detection based on mutual capacitance between the detection electrodes that perform the first touch detection and the drive electrodes.

公开(公告)号：US09711105B2

公开(公告)日：2017-07-18

申请号：US14478130

申请日：2014-09-05

Applicant: Japan Display Inc. ,  Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Takahiro Ochiai ,  Mitsuru Goto ,  Youzou Nakayasu ,  Yuki Okada ,  Naoki Takada

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3674 ,  G09G2300/0434

Abstract: A gate signal line driving circuit which suppresses noises in a gate signal and a display device which uses the gate signal line driving circuit are provided. A first basic circuit provided to a gate signal line driving circuit includes a HIGH voltage applying switching element which applies a HIGH voltage to gate signal lines in response to a signal HIGH period, and a LOW voltage applying switching circuit which applies a LOW voltage to the gate signal lines in response to a signal LOW period. In response to a signal HIGH period, a switch of the LOW voltage applying switching circuit of the first basic circuit is turned off based on a signal applied to a switch of the HIGH voltage applying switching element of a second basic circuit which assumes a signal HIGH period earlier than the first basic circuit.