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：US20220342503A1

公开(公告)日：2022-10-27

申请号：US17723712

申请日：2022-04-19

Applicant: Japan Display Inc.

Inventor： Yuto KAKINOKI ,  Takaaki KONO ,  Makoto HAYASHI

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/0362 ,  G06F3/02 ,  G06F3/039

Abstract: An input detection system includes a detection device including a plurality of sensor electrodes arrayed in a detection region, an input support device including an LC circuit, a first electrode coupled to one end side of the LC circuit, and a second electrode coupled to another end side of the LC circuit, and a control circuit including a drive signal supply circuit supplying a drive signal to the sensor electrodes and an adjustment circuit coupled to the sensor electrodes. The adjustment circuit adjusts a circuit constant that is added to a capacitance between the sensor electrode and the first electrode or the second electrode facing the sensor electrode.

公开(公告)号：US20220147189A1

公开(公告)日：2022-05-12

申请号：US17497070

申请日：2021-10-08

Applicant: Japan Display Inc.

Inventor： Yuto KAKINOKI ,  Makoto HAYASHI ,  Takaaki KONO

IPC: G06F3/044 ,  G06F3/041

Abstract: An input detection system includes a plurality of electrodes arrayed in a detection region, and an input support device including an LC circuit, a first electrode coupled to the LC circuit and arranged so as to overlap with at least equal to or more than one of the electrodes, and a housing accommodating therein at least the LC circuit. The housing is a conductor, and one end side of the LC circuit is coupled to the housing through a coupling member or a capacitor and another end side of the LC circuit is coupled to the first electrode.

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：US20190102030A1

公开(公告)日：2019-04-04

申请号：US16139963

申请日：2018-09-24

Applicant: Japan Display Inc.

Inventor： Yuto KAKINOKI ,  Naoki TAKADA

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0414 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/04166 ,  G06F3/041662 ,  G06F3/0418 ,  G06F3/04182 ,  G06F3/044 ,  G06F3/0443 ,  G06F3/0445 ,  G06F3/0446 ,  G06F2203/04105

Abstract: A display device with a touch detection function includes a touch detection electrode, first and second electrodes, a touch detection controller, and a force detection controller. The force detection controller performs interpolation processing on reference values to calculate an interpolation value when a reference force is applied to a position in an input surface at which a force has been applied by an object and calculates a force detection value based on a ratio of a detection value detected based on capacitance between first and second electrodes to the interpolation value. The position at which the force is applied is specified based on a position detected by the touch detection controller as a position of contact with the input surface by the object. The reference values are detected based on the capacitance between the first and second electrodes when the reference force is applied to reference positions.