公开(公告)号：US10175818B2

公开(公告)日：2019-01-08

申请号：US15831495

申请日：2017-12-05

Applicant: Japan Display Inc.

Inventor： Shigesumi Araki ,  Mitsutaka Okita ,  Kazuhiro Nishiyama ,  Yoshitoshi Kida ,  Koji Ishizaki ,  Kohei Azumi ,  Hiroshi Mizuhashi

IPC: G06F3/041 ,  G02F1/1362 ,  G02F1/1333 ,  G06F3/044 ,  G09G3/36 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1345

Abstract: A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer.

公开(公告)号：US20180299995A1

公开(公告)日：2018-10-18

申请号：US16016055

申请日：2018-06-22

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Daisuke Takama ,  Yoshitoshi Kida

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

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G02F1/134363 ,  G02F2001/134372 ,  G02F2201/12 ,  G06F3/0412 ,  G09G3/3648

Abstract: A common electrode for a display, which is originally provided in a liquid crystal display element, is also used as one (drive electrode) of a pair of electrodes for a touch sensor, and the other (detection-electrode-for-the-sensor) of the pair of electrodes is newly formed. An existing common drive signal as a drive signal for display is used in common for a drive signal for the touch sensor. A capacitance is formed between the common electrode and the detection-electrode-for-the-sensor, and touch detection is performed by utilizing a change of this capacitance caused by a finger touch of a user. Thus, a display device with a touch sensor is also applicable to a mobile device in which electric potential of the user is inconstant in many cases. The newly-provided electrode is only the detection-electrode-for-the-sensor, and it is unnecessary to newly prepare a drive signal for the touch sensor.

公开(公告)号：US10088935B2

公开(公告)日：2018-10-02

申请号：US15928491

申请日：2018-03-22

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Hiroshi Mizuhashi ,  Yoshitoshi Kida

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

Abstract: A sensor-equipped display device includes a display panel comprising a common electrode; a sensor comprising a plurality of detection electrodes extending in a first direction and arranged in a second direction crossing the first direction, each of the detection electrodes including a first electrode and a second electrode which are opposed to the common electrode, are divided and extend in the first direction, each of the first electrode and the second electrode including a gradient in width in the first direction in the detection electrode, the gradient in width of the first electrode and the gradient in width of the second electrode being inclined in opposite directions; and a controller configured to effect switching to either a first mode or a second mode, and to control driving of the common electrode and the detection electrodes, wherein the sensor further comprises a dummy electrode disposed between neighboring detection electrodes.

公开(公告)号：US10048817B2

公开(公告)日：2018-08-14

申请号：US15096874

申请日：2016-04-12

Applicant: Japan Display Inc.

Inventor： Fumitaka Gotoh ,  Hiroshi Mizuhashi ,  Hayato Kurasawa ,  Yoshitoshi Kida

IPC: G06F3/044 ,  G06F3/041

Abstract: According to one embodiment, a touch control method of a touch control device which drives a touch sensor to collect data indicating a position of at least one object to be detected, and outputs the data to an external device, the touch sensor having plural first electrodes arranged to extend a first direction, and plural second electrodes arranged to extend in a second direction crossing the first direction, the touch control method includes driving the first electrodes in a self-detection mode to specify at least one of the first electrodes which detects the object, and driving the specified at least one first electrode and the second electrodes in a partial mutual detection mode to collect data indicating the position of the object.

公开(公告)号：US10013131B2

公开(公告)日：2018-07-03

申请号：US15845740

申请日：2017-12-18

Applicant: Japan Display Inc.

Inventor： Hiroshi Mizuhashi ,  Yoshitoshi Kida ,  Koji Noguchi

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412

Abstract: There are provide a display panel with a touch detection function, in which display operation is less affected by touch detection operation, a method of driving the display panel with a touch detection function, a driving circuit, and an electronic unit having the display panel with a touch detection function. The display panel with a touch detection function includes: one or more display elements; one or more drive electrodes; one or more touch detection electrodes; and a drive section selectively applying a DC drive signal or an AC drive signal to the drive electrodes.

公开(公告)号：US20180107305A1

公开(公告)日：2018-04-19

申请号：US15845740

申请日：2017-12-18

Applicant: Japan Display Inc.

Inventor： Hiroshi Mizuhashi ,  Yoshitoshi Kida ,  Koji Noguchi

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412

Abstract: There are provide a display panel with a touch detection function, in which display operation is less affected by touch detection operation, a method of driving the display panel with a touch detection function, a driving circuit, and an electronic unit having the display panel with a touch detection function. The display panel with a touch detection function includes: one or more display elements; one or more drive electrodes; one or more touch detection electrodes; and a drive section selectively applying a DC drive signal or an AC drive signal to the drive electrodes.

公开(公告)号：US09927937B2

公开(公告)日：2018-03-27

申请号：US15713811

申请日：2017-09-25

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Yoshitoshi Kida

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

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G06F3/0416

Abstract: A display apparatus with a substrate having a long side and a short side, a plurality of driving electrodes arranged on the substrate parallel to the long side of the substrate, a plurality of touch detection electrodes arranged on the substrate parallel to the short side of the substrate, a control unit electrically coupled to each of the plurality of driving electrodes and which sequentially drives the plurality of driving electrodes, and a detection unit electrically coupled to each of the touch detection electrodes.

公开(公告)号：US09804704B2

公开(公告)日：2017-10-31

申请号：US15446728

申请日：2017-03-01

Applicant: Japan Display Inc.

Inventor： Kohei Azumi ,  Yoshitoshi Kida ,  Hayato Kurasawa

IPC: G06F3/045 ,  G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04108 ,  G06F2203/04803

Abstract: According to an aspect, a touch detecting device includes: a first drive area and a second drive area each including drive electrodes and detection electrodes, the drive electrodes extending in a first direction, being arrayed in a second direction intersecting with the first direction, and being applied with a drive signal, the detection electrodes extending in the second direction, being arrayed in the first direction, and outputting a detection signal. Application of the drive signal to the drive electrodes in the second drive area is stopped at a timing to apply the drive signal to the drive electrodes arranged in a first predetermined area included in the first drive area, and application of the drive signal to the drive electrodes in the first drive area is stopped at a timing to apply the drive signal to a second predetermined area included in the second drive area.

公开(公告)号：US09772701B2

公开(公告)日：2017-09-26

申请号：US14160237

申请日：2014-01-21

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Hiroshi Mizuhashi ,  Yoshitoshi Kida

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/041 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044

Abstract: According to an aspect, a touch detection device has a detection surface for detecting a position of an external proximity object which is in contact therewith or in proximity thereto. The touch detection device includes: a drive electrode layer that has a plurality of drive electrodes; a plurality of touch detection electrodes that face the drive electrodes; a drive electrode driver for applying a driving signal to the drive electrodes; and a plurality of wirings for electrically coupling the plurality of drive electrodes with the drive circuit. In the drive electrode layer, a specific drive electrode coupled via the wiring with a longest distance has an overlapped area smaller than an average of the overlapped areas of the other drive electrodes. The overlapped area is an area that is overlapped with the wiring.

公开(公告)号：US09746949B2

公开(公告)日：2017-08-29

申请号：US14182432

申请日：2014-02-18

Applicant: Japan Display Inc.

Inventor： Michio Yamamoto ,  Jouji Yamada ,  Hirofumi Nakagawa ,  Kohei Azumi ,  Makoto Hayashi ,  Hiroshi Mizuhashi ,  Kozo Ikeno ,  Yoshitoshi Kida

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/044

Abstract: According to one embodiment, an electronic device includes a display device includes a plurality of first electrodes arranged in a matrix form, second electrodes opposite to the first electrodes, the second electrodes including a plurality of electrode patterns extending in a first direction and aligned in a second direction to cross the first direction, and third electrodes opposite to the second electrodes, the third electrodes including a plurality of electrode patterns extending in the second direction and aligned in the first direction, a display driver applying a sensor drive signal to the second electrodes, a detection circuit transmitting a detection data including physical quantity data detected from the plurality of electrode patterns of the third electrodes at each time when the sensor drive signal is applied to the second electrodes, and an application processor processing the detection data received from the detection circuit.