公开(公告)号：US20220413631A1

公开(公告)日：2022-12-29

申请号：US17850345

申请日：2022-06-27

Applicant: Japan Display Inc.

Inventor： Yuto KAKINOKI ,  Makoto HAYASHI ,  Takaaki KONO ,  Takayuki NAKANISHI

IPC: G06F3/0362 ,  G06F3/044

Abstract: An input detection system includes a detection device including a plurality of drive electrodes and a plurality of detection electrodes arrayed in a detection region, and a drive electrode scan circuit configured to supply a drive signal to the drive electrodes, and an input device including an LC circuit, a first electrode coupled to one end side of the LC circuit, and a second electrode coupled to the other end side of the LC circuit. The drive electrode scan circuit supplies the drive signal to at least equal to or more than one of the drive electrodes and supplies, to the others of the drive electrodes, an opposite phase signal as a drive signal having an opposite phase to a phase of the drive signal.

公开(公告)号：US20220128852A1

公开(公告)日：2022-04-28

申请号：US17568751

申请日：2022-01-05

Applicant: Japan Display Inc.

Inventor： Koji YOSHIDA ,  Hirofumi OHIRA ,  Soichiro OHAMA ,  Naoki TAKADA ,  Takayuki NAKANISHI

IPC: G02F1/1333 ,  G02F1/1343 ,  G02F1/137 ,  G02F1/155 ,  G02F1/163

Abstract: The display device includes a display panel and a front surface panel that is superimposed with the display panel, and that is switched between a reflective state in which incident light is reflected and a transmissive state in which incident light is transmitted. The front surface panel can detect presence of an object to be detected.

公开(公告)号：US20210302797A1

公开(公告)日：2021-09-30

申请号：US17347588

申请日：2021-06-15

Applicant: Japan Display Inc.

Inventor： Yuto KAKINOKI ,  Naoki TAKADA ,  Takayuki NAKANISHI

IPC: G02F1/1362 ,  G01L1/14

Abstract: According to an aspect, a display device includes: a display region in which a plurality of pixels are arrayed in a row direction and a column direction; a plurality of gate lines extending in the row direction and coupled to the pixels; a plurality of signal lines extending in the column direction and coupled to the pixels; a plurality of pixel electrodes provided in the pixels; a plurality of first electrodes facing the pixel electrodes; a plurality of auxiliary wiring lines coupled to the respective first electrodes; a second electrode provided in the same layer as the auxiliary wiring lines and overlapping with the signal lines; and a detection circuit configured to detect force applied to the display region based on at least first capacitance generated between the second electrode and the signal lines.

公开(公告)号：US20210191179A1

公开(公告)日：2021-06-24

申请号：US17167087

申请日：2021-02-04

Applicant: Japan Display Inc.

Inventor： Koji YOSHIDA ,  Hirofumi OHIRA ,  Soichiro OHAMA ,  Naoki TAKADA ,  Takayuki NAKANISHI

IPC: G02F1/1333 ,  G02F1/1343 ,  G02F1/155 ,  G02F1/137 ,  G02F1/163

Abstract: The display device includes a display panel and a front surface panel that is superimposed with the display panel, and that is switched between a reflective state in which incident light is reflected and a transmissive state in which incident light is transmitted. The front surface panel can detect presence of an object to be detected.

公开(公告)号：US20210089156A1

公开(公告)日：2021-03-25

申请号：US17110873

申请日：2020-12-03

Applicant: Japan Display Inc.

Inventor： Takayuki NAKANISHI

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32

Abstract: A display device with an input function is provided having a plurality of pixel parts arranged at intervals in a first direction and a second direction intersecting the first direction, and a display region including a plurality of light-transmitting parts arranged in the gap portions of the pixel parts, the pixel parts include at least one pixel provided with light-emitting elements, the light-transmitting part includes a sensor electrode for detecting electrostatic capacitance.

公开(公告)号：US20190129245A1

公开(公告)日：2019-05-02

申请号：US16168996

申请日：2018-10-24

Applicant: Japan Display Inc.

Inventor： Takayuki NAKANISHI ,  Tatsuya Yata ,  Takeo Koito

IPC: G02F1/1335 ,  G02F1/1337 ,  G02F1/13363

Abstract: According to one embodiment, an optical element, including a first liquid crystal lens formed of liquid crystal molecules, a polarizer opposed to the first liquid crystal lens, a first modulating portion located between the first liquid crystal lens and the polarizer to modulate incident light and a first unmodulating portion located between the first liquid crystal lens and the polarizer and adjacent to the first modulating portion.

公开(公告)号：US20180329543A1

公开(公告)日：2018-11-15

申请号：US16045181

申请日：2018-07-25

Applicant: Japan Display Inc.

Inventor： Takayuki NAKANISHI ,  Masaya TAMAKI ,  Tatsuya YATA

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F2203/04101 ,  G06F2203/04103 ,  G06F2203/04111

Abstract: An input device includes a first substrate, a first light-emitting element unit, and a third electrode unit. The first substrate has a first surface and a second surface. The first light-emitting element includes a first electrode unit formed on the second surface, a second electrode unit formed in a layer different from that of the first electrode unit, and a luminescent layer electrically in contact with at least a part of the first electrode unit and a part of the second electrode unit, and formed between the first electrode unit and the second electrode unit. The third electrode unit is insulated from the first electrode unit and detects a change in an electric field between the first electrode unit and the third electrode unit depending on coordinates of a proximity object present at a position overlapping with the first surface in planar view.

公开(公告)号：US20180246596A1

公开(公告)日：2018-08-30

申请号：US15903897

申请日：2018-02-23

Applicant: Japan Display Inc.

Inventor： Naoki TAKADA ,  Hayato KURASAWA ,  Koji NOGUCHI ,  Takayuki NAKANISHI ,  Yasuyuki TERANISHI

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

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/0418 ,  G06F2203/04108 ,  H03K17/962

Abstract: A display device includes a substrate, a plurality of detection electrodes, a drive circuit, a detector, and a first switching circuit. The detection electrodes are provided in a display area of the substrate. The drive circuit supplies a drive signal to the detection electrodes. The detector receives, from the detection electrodes, a detection signal corresponding to a capacitance change in the detection electrodes occurring when the drive signal is supplied. The first switching circuit is coupled to the detector via wiring and provided between the detection electrodes and the detector. The first switching circuit changes the number of detection electrodes electrically coupled to one of the wiring based on the detection signal.

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：US20180004322A1

公开(公告)日：2018-01-04

申请号：US15626249

申请日：2017-06-19

Applicant: Japan Display Inc.

Inventor： Takayuki NAKANISHI

IPC: G06F3/044 ,  H05K9/00 ,  G02F1/1333 ,  G06F3/041

CPC classification number: G06F3/044 ,  G02F1/13338 ,  G02F1/133385 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04102 ,  G06F2203/04103 ,  G06F2203/04106 ,  G06F2203/04107 ,  G06F2203/04112 ,  H05K9/0084 ,  H05K9/0096

Abstract: A display device with an input function is provided with a display panel, a touch sensor arranged overlapping the display panel, and an electromagnetic shield arranged overlapping the display panel, the display panel, the touch sensor, and the electromagnetic shield have flexibility, the display panel includes a substrate having flexibility, a functional circuit layer arranged on the first surface of the substrate, and a display element layer provided in a location facing the first surface via the functional circuit layer, the touch sensor includes a plurality of electrostatic capacitance type sensor electrodes arranged in a location facing the functional circuit layer via the display element layer, the electromagnetic shield is arranged in a location further outside than the touch sensor from the rolled axis or the folded axis of the substrate when the functional circuit layer and the display element layer are rolled or folded inward.