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：US20240046694A1

公开(公告)日：2024-02-08

申请号：US18378501

申请日：2023-10-10

Applicant: Japan Display Inc.

Inventor： Hirofumi KATO ,  Yoshitaka KOJIMA

IPC: G06V40/13 ,  G06V40/145

CPC classification number: G06V40/1318 ,  G06V40/145

Abstract: According to an aspect, a detection device includes: a plurality of optical sensors that are arranged in a detection area and each of which is configured to output a signal corresponding to light irradiating the optical sensor; a detection circuit configured to be supplied with the signals from the optical sensors; and a control circuit configured to output first data and second data for which detection conditions for acquiring the signals differ from each other. The control circuit is configured to output detection information data in which the detection conditions for the first data and the detection conditions for the second data are added as attribute information to a head of a data string in which the first data and the second data are sequentially arranged.

公开(公告)号：US20220338352A1

公开(公告)日：2022-10-20

申请号：US17718919

申请日：2022-04-12

Applicant: Japan Display Inc.

Inventor： Hirofumi KATO ,  Yoshitaka KOJIMA

IPC: H05K1/18

Abstract: A detection device includes a sensor substrate provided with a plurality of photosensors, a control board provided with a control circuit configured to control the photosensors, and a flexible printed circuit board provided with wiring configured to electrically couple the sensor substrate to the control board. The flexible printed circuit board is provided with a plurality of cutting indication lines for changing a length between the sensor substrate and the flexible printed circuit board.

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.