公开(公告)号：US10234991B2

公开(公告)日：2019-03-19

申请号：US15446618

申请日：2017-03-01

Applicant: Japan Display Inc.

Inventor： Mitsuhide Miyamoto ,  Takayuki Nakanishi ,  Hayato Kurasawa ,  Hiroshi Mizuhashi ,  Shuji Hayashi ,  Yoshitoshi Kida

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3233 ,  G09G3/3266 ,  H01L27/32

Abstract: A display device includes a plurality of scanning lines provided over an insulating surface, a plurality of video signal lines provided, intersecting with the plurality of scanning lines, a display area including a plurality of pixels, each having a light emitting element and a transistor for controlling a current supplied to the light emitting element, provided at points of intersection between the plurality of scanning lines and the plurality of video signal lines, and a touch sensor provided over the display area and having a drive electrode and a detection electrode which form an electrostatic capacitance with each other.

公开(公告)号：US20190050084A1

公开(公告)日：2019-02-14

申请号：US16161343

申请日：2018-10-16

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Yoshitoshi Kida

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

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：US20180356918A1

公开(公告)日：2018-12-13

申请号：US16107391

申请日：2018-08-21

Applicant: Japan Display Inc.

Inventor： Hayato Kurasawa ,  Yasuyuki Teranishi ,  Yoshitoshi Kida

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0418 ,  G06F2203/04103

Abstract: According to an aspect, a touch detection device includes a drive electrode layer including a plurality of drive electrodes formed in stripes in an array direction; a plurality of touch detection electrodes that are arranged in a manner facing the plurality of drive electrodes and generate capacitance with the plurality of drive electrodes; and a touch detecting unit that applies a touch drive signal to the plurality of drive electrodes and detects a position of an object in contiguity with a touch detection area based on detection signals supplied from the plurality of touch detection electrodes. The plurality of the drive electrodes include an end drive electrode that is provided to at least one end in the array direction and has a larger width in the array direction than the width in the array direction of drive electrodes other than the end drive electrode.

公开(公告)号：US10108839B2

公开(公告)日：2018-10-23

申请号：US15605598

申请日：2017-05-25

Applicant: Japan Display Inc.

Inventor： Toshinori Uehara ,  Yoshitoshi Kida ,  Hiroshi Mizuhashi ,  Hayato Kurasawa ,  Yuji Suzuki ,  Shoji Hinata ,  Toshiya Yamazaki

IPC: G06K9/00 ,  G06F3/041 ,  G06F21/32 ,  G06F3/044 ,  G06F3/0354

Abstract: A display panel including a display function layer displaying an image in a display area, a cover member including a first face and a second face disposed on an opposite side of the first face and faces the display panel, and a fingerprint sensor including a plurality of first detection electrodes disposed in a sensor base and configured to detect unevenness of an object brought into contact with or approaching the first face of the cover member, a shield electrode disposed to face the plurality of first detection electrodes and configured to suppress a change in capacitance between the first detection electrodes and the shield electrode, and switching elements disposed in correspondence with the first detection electrodes, the fingerprint sensor being arranged between the cover member and the display panel and arranged to overlap with the display area when viewed in a direction perpendicular to the first face are included.

公开(公告)号：US10037116B2

公开(公告)日：2018-07-31

申请号：US15226192

申请日：2016-08-02

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Daisuke Takama ,  Yoshitoshi Kida

IPC: G06F3/044 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/041 ,  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：US10001874B2

公开(公告)日：2018-06-19

申请号：US15381660

申请日：2016-12-16

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Yoshitoshi Kida ,  Kohei Azumi ,  Takayuki Nakanishi ,  Hiroshi Mizuhashi

IPC: G06F3/041 ,  G02F1/1368 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1343 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/133707 ,  G02F1/134336 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/133302 ,  G02F2201/123 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04108

Abstract: A display device including a display section having a plurality of pixel electrodes; and a plurality of drive electrodes extending in a first direction and arranged side-by-side in a second direction. Each of the drive electrodes has a width in the second direction corresponding to a size of the two or more pixel electrodes, and has one or more slits extending in the first direction.

公开(公告)号：US20180011570A1

公开(公告)日：2018-01-11

申请号：US15713811

申请日：2017-09-25

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Yoshitoshi Kida

IPC: G06F3/044 ,  G06F3/041 ,  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：US09864473B2

公开(公告)日：2018-01-09

申请号：US15630091

申请日：2017-06-22

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：US20170372110A1

公开(公告)日：2017-12-28

申请号：US15605598

申请日：2017-05-25

Applicant: Japan Display Inc.

Inventor： Toshinori Uehara ,  Yoshitoshi Kida ,  Hiroshi Mizuhashi ,  Hayato Kurasawa ,  Yuji Suzuki ,  Shoji Hinata ,  Toshiya Yamazaki

IPC: G06K9/00

CPC classification number: G06K9/0002 ,  G06F3/03547 ,  G06F3/041 ,  G06F3/044 ,  G06F21/32 ,  G06F2203/0338

Abstract: A display panel including a display function layer displaying an image in a display area, a cover member including a first face and a second face disposed on an opposite side of the first face and faces the display panel, and a fingerprint sensor including a plurality of first detection electrodes disposed in a sensor base and configured to detect unevenness of an object brought into contact with or approaching the first face of the cover member, a shield electrode disposed to face the plurality of first detection electrodes and configured to suppress a change in capacitance between the first detection electrodes and the shield electrode, and switching elements disposed in correspondence with the first detection electrodes, the fingerprint sensor being arranged between the cover member and the display panel and arranged to overlap with the display area when viewed in a direction perpendicular to the first face are included.

公开(公告)号：US20170285811A1

公开(公告)日：2017-10-05

申请号：US15630091

申请日：2017-06-22

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.