公开(公告)号：US20180181242A1

公开(公告)日：2018-06-28

申请号：US15848073

申请日：2017-12-20

Applicant: Japan Display Inc.

Inventor： Hiroshi MIZUHASHI ,  Hayato KURASAWA ,  Yoshitoshi KIDA ,  Toshinori UEHARA ,  Takayuki NAKANISHI

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

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04107 ,  G09G2310/0264

Abstract: A display device comprises a first power supply line supplying a first potential, a second power supply line supplying a second potential, a third power supply line supplying a touch driving signal, and a display unit including a plurality of sub-pixels. The display unit comprises a plurality of first electrodes respectively provided in the plurality of sub-pixels and electrically connected to the first power supply line, a second electrode provided to be common among the plurality of sub-pixels and electrically connected to the second power supply line, a light emitting layer provided between the first electrode and the second electrode, a plurality of third electrodes electrically connected to the third power supply line, and a signal control circuit supplying a signal synchronized with a touch driving signal to the second electrode in a period in which a touch driving signal is supplied to the plurality of third electrodes.

公开(公告)号：US20170286739A1

公开(公告)日：2017-10-05

申请号：US15469755

申请日：2017-03-27

Applicant: Japan Display Inc.

Inventor： Fumihito SHIBANO ,  Hiroshi MIZUHASHI ,  Toshinori UEHARA ,  Kimiyo NONOYAMA ,  Hayato KURASAWA

IPC: G06K9/00

CPC classification number: G06K9/0002

Abstract: According to an aspect, a fingerprint sensor includes a first glass substrate, a second glass substrate, and a plurality of sensor electrodes between the first glass substrate and the second glass substrate. The first glass substrate and the second glass substrate are bonded together by a sealing material with the plurality of sensor electrodes interposed therebetween.

公开(公告)号：US20150378222A1

公开(公告)日：2015-12-31

申请号：US14754185

申请日：2015-06-29

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA ,  Keiji TAKIZAWA ,  Toshinori UEHARA

IPC: G02F1/1343 ,  G02F1/1335

CPC classification number: G02F1/134363 ,  G02F1/133514 ,  G02F2001/134345

Abstract: According to an aspect, a liquid crystal display device includes: a first substrate; a second substrate; a liquid crystal layer between the first and second substrates; pixels each including sub-pixels corresponding to different color areas; a first electrode in each sub-pixel; and a second electrode facing the first electrode. The first electrode includes an electrode base portion extending in a first direction; and a plurality of comb tooth portions extending in a second direction from the electrode base portion. A slit pitch of a sub-pixel in one color area and a slit pitch of a sub-pixel in the other color area of at least two color areas out of different color areas are different in size, each slit pitch corresponding to a gap between the comb tooth portions adjacent to each other.

Abstract translation: 根据一方面，液晶显示装置包括：第一基板; 第二基板; 第一和第二基板之间的液晶层; 每个像素包括对应于不同颜色区域的子像素; 每个子像素中的第一电极; 以及面向第一电极的第二电极。 第一电极包括沿第一方向延伸的电极基部; 以及从电极基部沿第二方向延伸的多个梳齿部。 一个颜色区域中的子像素的狭缝间距和不同颜色区域中的至少两个颜色区域的另一个颜色区域中的子像素的狭缝间距是不同的，每个狭缝间距对应于 梳齿部彼此相邻。

公开(公告)号：US20240328875A1

公开(公告)日：2024-10-03

申请号：US18612397

申请日：2024-03-21

Applicant: Japan Display Inc.

Inventor： Fumihoru NAKANO ,  Toshinori UEHARA

IPC: G01L1/22

CPC classification number: G01L1/2287 ,  G01L1/225

Abstract: According to one embodiment, a strain detection device includes a sensor sheet including strain gauges, power lines and first signal lines each connected to one end side of a respective one thereof, and ground lines and second signal lines each connected to an other end side of the respective one thereof, and a controller including a selector which sequentially scan-drives the strain gauges via the power lines and sequentially reads detection signals at the one end side of the respective strain gauges and detection signals at the other end side via the first and second signal lines, an arithmetic processor which calculates a radius of curvature based on the detection signals, and a determination unit which determines whether to stop or continue scan-driving of the strain gauges.

公开(公告)号：US20240183646A1

公开(公告)日：2024-06-06

申请号：US18528199

申请日：2023-12-04

Applicant: Japan Display Inc.

Inventor： Toshinori UEHARA ,  Fumihoru NAKANO

IPC: G01B7/16

CPC classification number: G01B7/18

Abstract: An object is to provide a detection device with a reduced number of wires.
A detection device includes a bridge circuit including a first node to which a second end of a first reference resistance element and a first end of a second reference resistance element are connected, a second node to which a second end of the second reference resistance element and a first end of a third reference resistance element are connected, a third node to which a second end of the third reference resistance element and a first end of a strain gauge resistance element are connected, and a fourth node to which a second end of the strain gauge resistance element and a first end of the first reference resistance element are connected, a capacitance element provided between the first node and the third node, a first switch element provided between the fourth node and a reference power supply line, and a second switch element provided between the second node and a detection circuit.

公开(公告)号：US20230154230A1

公开(公告)日：2023-05-18

申请号：US18098278

申请日：2023-01-18

Applicant: Japan Display Inc.

Inventor： Fumihito SHIBANO ,  Hiroshi MIZUHASHI ,  Toshinori UEHARA ,  Kimiyo NONOYAMA ,  Hayato KURASAWA

IPC: G06V40/13

CPC classification number: G06V40/1306

Abstract: A fingerprint sensor is provided and includes substrate; sensor electrodes arranged on substrate; first switches coupled to sensor electrodes; organic layer covering sensor electrodes; control line drive circuit in a first direction; signal line drive circuit in a second direction orthogonal to the first direction; signal lines coupled to the first switches; control lines coupling first switches to control line drive circuit; sensor drive electrode surrounding sensor electrodes; second switches between signal line drive circuit and signal lines; first number of third switches between signal line drive circuit and first number of second switches, wherein surface of organic layer is lower than sensor drive electrode, and wherein first number is less than number of all second switches.

公开(公告)号：US20230015331A1

公开(公告)日：2023-01-19

申请号：US17951172

申请日：2022-09-23

Applicant: Japan Display Inc.

Inventor： Koichi MIYASAKA ,  Yoshikatsu IMAZEKI ,  Yoichi KAMIJO ,  Shuichi OSAWA ,  Toshinori UEHARA

IPC: G06F3/044 ,  G02F1/1333 ,  G02F1/1343 ,  G06V40/13

Abstract: According to an aspect, a detection device includes: drive electrodes; detection electrodes; and dummy electrodes in a floating state. The drive electrodes include a first electrode extending in a first direction, and a second electrode disposed at a predetermined interval from the first electrode in a second direction intersecting the first direction. The detection electrodes include a third electrode extending in the second direction. The dummy electrodes include a fourth electrode disposed at a predetermined interval from the third electrode in the first direction. The first electrode includes a first extension part, a second extension part, and a first coupling part. The second electrode includes a third extension part, a fourth extension part, and a second coupling part. The third electrode includes a fifth extension part, a sixth extension part, and a third coupling part. The fourth electrode includes a seventh extension part, and an eighth extension part.

公开(公告)号：US20220236831A1

公开(公告)日：2022-07-28

申请号：US17579719

申请日：2022-01-20

Applicant: Japan Display Inc.

Inventor： Toshinori UEHARA

IPC: G06F3/044 ,  G06F3/041

Abstract: A detecting device includes a plurality of drive electrodes arrayed in a first direction, a plurality of detection electrodes arrayed in a second direction intersecting the first direction, a drive signal supply circuit configured to supply a drive signal to the drive electrodes, and a plurality of switch elements configured to switch between coupling and decoupling between the drive electrodes.

公开(公告)号：US20210397805A1

公开(公告)日：2021-12-23

申请号：US17464044

申请日：2021-09-01

Applicant: Japan Display Inc.

Inventor： Yoshitaka OZEKI ,  Hayato KURASAWA ,  Toshinori UEHARA ,  Koshiro MORIGUCHI

IPC: G06K9/00 ,  H01L27/12 ,  H01L29/423 ,  G06F3/041

Abstract: A detection device is provided and includes substrate; drive electrode provided on substrate; detection electrode provided on substrate and capacitively coupling with drive electrode; first thin film transistor connected to drive electrode and second thin film transistor connected to first thin film transistor, first insulating film and second insulating film both stacked on substrate, wherein first thin film transistor comprises first gate electrode and first semiconductor layer, second thin film transistor comprises second gate electrode and second semiconductor layer, first semiconductor layer and second semiconductor layer are in same layer and are located between first insulating film and second insulating film, first gate electrode opposes first semiconductor layer via first insulating film, second gate electrode opposes second semiconductor layer via second insulating film, and distance from first gate electrode to first semiconductor layer is greater than distance from second gate electrode to second semiconductor layer.

公开(公告)号：US20190354739A1

公开(公告)日：2019-11-21

申请号：US16531887

申请日：2019-08-05

Applicant: Japan Display Inc.

Inventor： Fumihito SHIBANO ,  Hiroshi MIZUHASHI ,  Toshinori UEHARA ,  Kimiyo NONOYAMA ,  Hayato KURASAWA

IPC: G06K9/00

Abstract: A fingerprint sensor and includes a first substrate having a first surface; an insulating layer having a second surface opposed to the first surface of the first substrate, and a third surface opposed to the second surface; sensor electrodes arranged in a matrix in the third surface; and a conductive portion arranged in the first surface of the first substrate and configured to supply a drive signal, wherein a height of the conductive portion is higher than a height of one of the sensor electrodes in a direction perpendicular to the first surface of the first substrate.