公开(公告)号：US20210264866A1

公开(公告)日：2021-08-26

申请号：US17319087

申请日：2021-05-13

Applicant: Japan Display Inc.

Inventor： Yuta HAGA ,  Kazunari TOMIZAWA

IPC: G09G3/36 ,  G02F1/1335

Abstract: According to one embodiment, a display device includes a display panel including a plurality of pixels arranged in a non-rectangular display area, and a display controller configured to display images in the display area. An opening portion of each of pixels disposed at an edge portion of the display area is light-shielded at an area ratio according to a shape of the display area.

公开(公告)号：US20230240567A1

公开(公告)日：2023-08-03

申请号：US18102935

申请日：2023-01-30

Applicant: Japan Display Inc.

Inventor： Ayato KITAMURA ,  Yuta HAGA

IPC: A61B5/1455

CPC classification number: A61B5/14552 ,  A61B2562/043

Abstract: According to an aspect, a detection device includes: a first light source configured to emit light having a predetermined wavelength; a second light source configured to emit light having a wavelength different from that of light emitted by the first light source; optical sensors provided at different locations from each other and configured to measure the light emitted by the first light source and the second light source; a light quantity controller configured to set a light quantity of at least one of the first light source or the second light source so that a measurement value based on at least one of detection values of the optical sensors reaches a predetermined target value; and a biometric information detector configured to, when the measurement value has reached the predetermined target value, detect information on a living body with the optical sensors using the set light quantity for detecting biometric information.

公开(公告)号：US20240172972A1

公开(公告)日：2024-05-30

申请号：US18513154

申请日：2023-11-17

Applicant: Japan Display Inc.

Inventor： Yuta HAGA

IPC: A61B5/1455

CPC classification number: A61B5/14552

Abstract: According to an aspect, a detection device includes: a first optical sensor configured to detect light; a second optical sensor provided adjacent to the first optical sensor and configured to detect light; a first light source configured to emit light having a predetermined wavelength; a second light source configured to emit light having a wavelength different from that of the light emitted by the first light source; a controller configured to cause the first light source and the second light source to simultaneously emit the light; and a signal processor configured to perform processing to obtain a blood oxygen saturation level based on a value detected by the first optical sensor and a value detected by the second optical sensor. The first optical sensor and the second optical sensor are configured to detect light that has been reflected in a living body or transmitted through the living body.

公开(公告)号：US20210266005A1

公开(公告)日：2021-08-26

申请号：US17317892

申请日：2021-05-12

Applicant: Japan Display Inc.

Inventor： Yuta HAGA

IPC: H03M1/34

Abstract: According to one embodiment, a sensor device includes a switch, a control circuit and an A/D converter. The switch is connected to a sensor element configured to store charge and provided to read the charge stored in the sensor element from the sensor element. The control circuit is configured to control the switch so as to partially and sequentially read the charge stored in the sensor element. The A/D converter is connected to the switch, which is configured to output a digital signal obtained by A/D-converting an analog signal according to the charge, for each charge partially read via the switch.

公开(公告)号：US20250008759A1

公开(公告)日：2025-01-02

申请号：US18883461

申请日：2024-09-12

Applicant: Japan Display Inc.

Inventor： Makoto HAYASHI ,  Hirofumi KATO ,  Yoshitaka KOJIMA ,  Yuta HAGA ,  Ayato KITAMURA ,  Yoshiyuki TERADA

IPC: H10K39/00 ,  A61B5/024 ,  A61B5/1455

Abstract: According to an aspect, a detection device includes: a light source configured to emit light to an object to be detected; a plurality of photodiodes that each include a sensor electrode and an organic semiconductor layer and are arranged in a detection area; and one or a plurality of detection circuits coupled to the photodiodes. The photodiodes includes a first photodiode and a second photodiode that has a shorter distance from the light source than that of the first photodiode. A light-receiving area of the first photodiode is larger than a light-receiving area of the second photodiode.

公开(公告)号：US20230200690A1

公开(公告)日：2023-06-29

申请号：US18066423

申请日：2022-12-15

Applicant: Japan Display Inc.

Inventor： Yuta HAGA ,  Ayato KITAMURA

IPC: A61B5/1455

CPC classification number: A61B5/1455

Abstract: According to an aspect, a detection device includes: a sensor having a detection area divided into a plurality of partial detection areas; and a detector configured to extract, from among the partial detection areas, one or more partial detection areas in each of which a signal strength of data satisfying a predetermined condition is acquired, and acquire biometric data on an object to be detected based on detection signals detected in a biometric data acquisition area including the extracted one or more partial detection areas.

公开(公告)号：US20250138312A1

公开(公告)日：2025-05-01

申请号：US18925431

申请日：2024-10-24

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA ,  Chikyu NAKAOKA ,  Takeo KOITO ,  Yuta HAGA

IPC: G02B27/01

Abstract: According to an aspect, a display device includes: a backlight, first and second image display panels. The first image display panel includes: a first polarizing plate configured to transmit light polarized in a first direction and block light polarized in a direction different from the first direction; and a first color filter provided between the first polarizing plate and the second image display panel. The second image display panel includes: a second polarizing plate configured to transmit light polarized in a second direction and block light polarized in a direction different from the second direction; and a second color filter provided between at least the second polarizing plate and the first image display panel. The thickness of the first color filter is different from the thickness of the second color filter. Another polarizing plate is not provided between the first image display panel and the second image display panel.

公开(公告)号：US20250134384A1

公开(公告)日：2025-05-01

申请号：US19007956

申请日：2025-01-02

Applicant: Japan Display Inc.

Inventor： Yuta HAGA

IPC: A61B5/00

Abstract: According to an aspect, a detection device includes: a light source; a plurality of optical sensors that are arranged so as to be capable of receiving light of the light source and have light-receiving areas different in size; a detection circuit that is electrically coupled to each of the optical sensors and configured to detect waveform data that allows an amount of received light of each of the optical sensors to be identified; and a control circuit configured to select at least one piece of the waveform data having waveform amplitude that satisfies a selection condition from a plurality of pieces of the waveform data detected by the optical sensors.

公开(公告)号：US20240272024A1

公开(公告)日：2024-08-15

申请号：US18428772

申请日：2024-01-31

Applicant: Japan Display Inc.

Inventor： Yuta HAGA

IPC: G01L1/26 ,  G01L1/20

CPC classification number: G01L1/26 ,  G01L1/205

Abstract: A force sensor includes a plurality of detection electrodes disposed in respective individual detection regions, a sensor layer facing the detection electrodes, a common electrode through which current flows to the detection electrodes via the sensor layer at inputting of force, a plurality of signal lines that are coupled to the detection electrodes and through which the current having flowed to the detection electrodes is output to outside, a plurality of switch elements configured to open and close the coupling of the signal lines and the detection electrodes, a plurality of gate lines for controlling opening and closing of the switch elements, a plurality of correction circuits disposed in the respective individual detection regions, and correction gate lines for driving the correction circuits.

公开(公告)号：US20230301125A1

公开(公告)日：2023-09-21

申请号：US18121181

申请日：2023-03-14

Applicant: Japan Display Inc.

Inventor： Makoto HAYASHI ,  Hirofumi KATO ,  Yoshitaka KOJIMA ,  Yuta HAGA ,  Ayato KITAMURA ,  Yoshiyuki TERADA

IPC: H10K39/00 ,  G06V40/13 ,  G06V10/147

CPC classification number: H10K39/601 ,  G06V40/13 ,  G06V10/147

Abstract: According to an aspect, a detection device includes: a light source configured to emit light to an object to be detected; a plurality of photodiodes arranged in a detection area; one or more detection circuits; and a coupling switching circuit configured to switch coupling of one or more of the photodiodes to one or more of the detection circuits. The coupling switching circuit is configured to change the number of the detection circuits coupled to one or more of the photodiodes based on an output value from one or more of the photodiodes.