公开(公告)号：US11301075B2

公开(公告)日：2022-04-12

申请号：US17186103

申请日：2021-02-26

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：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：US09760220B2

公开(公告)日：2017-09-12

申请号：US14500083

申请日：2014-09-29

Applicant: Japan Display Inc.

Inventor： Toshihiko Tanaka

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

CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F2203/04108 ,  G09G3/3648 ,  G09G3/3696 ,  G09G2310/0264 ,  G09G2354/00

Abstract: According to an aspect, a touch detection device, includes drive electrodes arranged in parallel in a predetermined direction; touch detection electrodes arranged in parallel in a direction intersecting with the predetermined direction; an operation drive unit applying a touch detection drive signal to the drive electrodes; and a touch detection unit. The drive electrodes are divided into a plurality of drive signal application blocks. Each of the drive signal application blocks has a drive block overlapped portion on which an arrangement order of the drive electrodes is changed such that an area of at least one of the drive electrodes at an end side in the predetermined direction is swapped for an area of at least one of the drive electrodes in an adjacent drive signal application block at an end side in the predetermined direction.

公开(公告)号：US12248221B2

公开(公告)日：2025-03-11

申请号：US17652793

申请日：2022-02-28

Applicant: Japan Display Inc.

Inventor： Koji Yoshida ,  Hirofumi Ohira ,  Soichiro Ohama ,  Toshihiko Tanaka

IPC: G02F1/1362 ,  B60K35/00 ,  B60K35/23 ,  G01K7/16 ,  G02B27/01 ,  G02F1/1335

Abstract: According to an aspect, a display device includes: a substrate having a display region; and a plurality of temperature detection wiring lines each having a conductive thin wiring line arranged at a position overlapping with the display region in plan view. A light shielding layer is arranged so as to extend in a first direction in the display region, and the conductive thin wiring line is arranged at a position overlapping with the light shielding layer and extends in the first direction along the light shielding layer in plan view.

公开(公告)号：US12079409B2

公开(公告)日：2024-09-03

申请号：US18195511

申请日：2023-05-10

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Toshihiko Tanaka ,  Naoki Takada ,  Chihiro Tanaka ,  Koji Ishizaki

IPC: G06F3/041 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G02F1/133 ,  G02F1/13338 ,  G02F1/1343 ,  G06F3/04164 ,  G06F3/0445 ,  G06F3/0446

Abstract: A sensor device is provided and includes electrodes each including first parts arranged in a first direction and a second part connected to the first parts, the first parts each having a first mesh shape which is formed of first metal wires, and the second part having a second mesh shape which is formed of second metal wires, wherein a longitudinal direction of the second part is the first direction, and at least one of the first mash shape and the second mash shape has an intersection portion at which two of the first metal wires or two of the second metal wires intersect.

公开(公告)号：US11320923B2

公开(公告)日：2022-05-03

申请号：US17161226

申请日：2021-01-28

Applicant: Japan Display Inc.

Inventor： Chihiro Tanaka ,  Naoki Takada ,  Toshihiko Tanaka

IPC: G06F3/041 ,  G09G3/36 ,  G06F3/044 ,  G02F1/1362 ,  G02F1/1333

Abstract: A control circuit for a display apparatus is provided and includes a buffer configured to temporarily store therein externally-supplied image data; and a controller configured to output pixel signals to signal lines of the display apparatus based on the image data stored in the buffer and read detection signals generated in detection conductors which extend along the signal lines of the display apparatus due to the pixel signals.

公开(公告)号：US11175784B2

公开(公告)日：2021-11-16

申请号：US17089971

申请日：2020-11-05

Applicant: Japan Display Inc.

Inventor： Toshihiko Tanaka ,  Naoki Takada ,  Chihiro Tanaka

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch panel driving circuit is provided and includes a plurality of output circuits each outputting a driving signal, respectively; a power supply line connected to a power of the plurality of output circuits; a power supply circuit; and a resistor element that is provided in common for the plurality of output circuits and is different from a resistance of the power supply line, wherein the power of the plurality of output circuits is connected to the power supply circuit through the resistor element and the power supply line.

公开(公告)号：US11073713B2

公开(公告)日：2021-07-27

申请号：US16773470

申请日：2020-01-27

Applicant: Japan Display Inc.

Inventor： Koji Yoshida ,  Hirofumi Ohira ,  Soichiro Ohama ,  Toshihiko Tanaka

IPC: G02F1/1333 ,  G02F1/1362

Abstract: According to an aspect, a display device includes: a substrate having a display region; a shield conductive layer provided above the substrate; and a plurality of wiring units for temperature detection disposed at positions overlapping with the display region and the shield conductive layer when seen in a plan view. Each wiring unit for temperature detection has one end coupled to a first wire and the other end coupled to a second wire to detect resistance that changes in accordance with a change in temperature, between the first wire and the second wire.

公开(公告)号：US10551953B2

公开(公告)日：2020-02-04

申请号：US15885251

申请日：2018-01-31

Applicant: Japan Display Inc.

Inventor： Chihiro Tanaka ,  Naoki Takada ,  Toshihiko Tanaka

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36 ,  G02F1/1362 ,  G02F1/1333

Abstract: According to an aspect, a display apparatus includes: a plurality of pixels configured to display an image; a plurality of signal lines configured to supply pixel signals to the pixels; a plurality of detection conductors configured to be capacitively coupled to the signal lines; and a controller configured to output the pixel signals to the signal lines and read detection signals generated in the detection conductors due to the pixel signals.