公开(公告)号：US20250028357A1

公开(公告)日：2025-01-23

申请号：US18905307

申请日：2024-10-03

Applicant: Japan Display Inc.

Inventor： Atsunori OYAMA

IPC: G06F1/16 ,  H05K1/14

Abstract: According to an aspect, a detection device includes: an annular housing; a first flexible substrate provided along a shape of the annular housing; a battery provided on the first flexible substrate; a light source provided on the first flexible substrate; and an optical sensor including a second flexible substrate and a plurality of photodiodes provided in a detection area of the second flexible substrate. One end of the second flexible substrate of the optical sensor overlaps one end of the first flexible substrate, and the second flexible substrate is electrically coupled to the first flexible substrate.

公开(公告)号：US20240298937A1

公开(公告)日：2024-09-12

申请号：US18593127

申请日：2024-03-01

Applicant: Japan Display Inc.

Inventor： Atsunori OYAMA ,  Kento HIMOTO

IPC: A61B5/1455 ,  A61B5/00

CPC classification number: A61B5/14552 ,  A61B5/6802 ,  A61B2562/0233 ,  A61B2562/046

Abstract: According to an aspect, a detection device includes: a housing; an optical sensor including photodiodes; a light source disposed in the housing so as to be close to an end of the optical sensor; and a control circuit configured to control light emission of the light source. The optical sensor includes gate lines arranged in a first direction away from the light source and electrically coupled to the photodiodes. The control circuit is configured to control the light emission of the light source such that, when the photodiodes are sequentially driven on a gate line basis, a total amount of light of the light source when detected by the photodiodes driven by the gate line closest to the light source is smaller than the total amount of light of the light source when detected by the photodiodes driven by the gate line farthest from the light source.

公开(公告)号：US20170103715A1

公开(公告)日：2017-04-13

申请号：US15281461

申请日：2016-09-30

Applicant: Japan Display Inc.

Inventor： Atsunori OYAMA

IPC: G09G3/34 ,  G02F1/1335 ,  G02F1/1334 ,  G09G3/20 ,  G09G3/36

CPC classification number: G09G3/3413 ,  G02F1/1334 ,  G02F1/133504 ,  G02F1/133514 ,  G02F1/133606 ,  G02F1/134309 ,  G02F1/13476 ,  G02F2001/133601 ,  G02F2201/121 ,  G02F2201/123 ,  G09G3/2003 ,  G09G3/36 ,  G09G3/3611 ,  G09G3/3688 ,  G09G2300/023 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2320/0271 ,  G09G2320/0646 ,  G09G2320/0666

Abstract: A display device according to an aspect of the present invention includes: a polymer dispersed liquid crystal panel; a light source device that emits illumination light to an end surface of the polymer dispersed liquid crystal panel; a video signal control unit that corrects a video signal to generate a video control signal, the video signal being corrected so as to cancel a change in a color of the illumination light when the illumination light propagates through inside the polymer dispersed liquid crystal panel; and a display panel that modulates the illumination light that has propagated through the inside of the polymer dispersed liquid crystal panel and is scattered by the polymer dispersed liquid crystal panel, based on the video control signal.

公开(公告)号：US20250028360A1

公开(公告)日：2025-01-23

申请号：US18905358

申请日：2024-10-03

Applicant: Japan Display Inc.

Inventor： Atsunori OYAMA

IPC: G06F1/16 ,  G06F1/18 ,  G06F3/03

Abstract: According to an aspect, a detection device includes: an annular housing; a first flexible substrate provided along a shape of the annular housing; a battery provided on the first flexible substrate; a light source provided on the first flexible substrate; a coil to charge the battery provided on the first flexible substrate; and an optical sensor including a second flexible substrate and a plurality of photodiodes provided in a detection area of the second flexible substrate. One end of the second flexible substrate of the optical sensor overlaps one end of the first flexible substrate, and the second flexible substrate is electrically coupled to the first flexible substrate. The coil is disposed in a position that is different from those of the one end of the first flexible substrate and the light source and is between the one end of the first flexible substrate and the light source.

公开(公告)号：US20220215684A1

公开(公告)日：2022-07-07

申请号：US17646754

申请日：2022-01-03

Applicant: Japan Display Inc.

Inventor： Kazuhide MOCHIZUKI ,  Takashi NAKAMURA ,  Atsunori OYAMA

IPC: G06V40/13 ,  G06V40/12 ,  G06V40/145 ,  G06F3/041

Abstract: According to one embodiment, a biometric authentication device includes a sensor and an illumination device. The sensor includes a first base material, a plurality of photoelectric conversion elements and a first control unit. The illumination device includes a second base material, a plurality of light emitting elements and a second control unit. Upon lighting the light emitting element at a predetermined position in the groups of the light emitting elements by the second control unit, the first control unit controls the operation of the photoelectric conversion elements so as to acquire a signal from the photoelectric conversion elements at predetermined positions of the groups of the photoelectric conversion elements.

公开(公告)号：US20250028358A1

公开(公告)日：2025-01-23

申请号：US18905321

申请日：2024-10-03

Applicant: Japan Display Inc.

Inventor： Atsunori OYAMA ,  Gen KOIDE

IPC: G06F1/16 ,  H05K1/14

Abstract: According to an aspect, a detection device includes: an annular housing; a first flexible substrate provided along a shape of the annular housing; a battery provided on a first surface of the first flexible substrate; a light source provided in a first area of a second surface of the first flexible substrate opposite the first surface; and an optical sensor that is provided in a second area different from the first area of the second surface of the first flexible substrate and includes a plurality of photodiodes.

公开(公告)号：US20230379599A1

公开(公告)日：2023-11-23

申请号：US18230508

申请日：2023-08-04

Applicant: Japan Display Inc.

Inventor： Keiichi SAITO ,  Takashi NAKAMURA ,  Atsunori OYAMA

IPC: H04N25/709 ,  H04N25/76

CPC classification number: H04N25/709 ,  H04N25/76 ,  H01L27/14643

Abstract: According to an aspect, a detection device includes: photodiodes configured to perform detection in a detection period, a power supply control circuit, and power supply circuits configured to supply, to each photodiode, a first potential or a second potential based on a control signal from the power supply control circuit. The photodiodes are respectively provided for partial detection areas of a detection area. The power supply control circuit is configured to detect an output level of a signal output from each of the partial detection areas when the first potential is supplied to the photodiodes during a setting period different from the detection period, and control the power supply circuits so as to supply the second potential to the photodiode of the partial detection area in which the output level of the signal is equal to or higher than a predetermined threshold during the detection period.

公开(公告)号：US20220366720A1

公开(公告)日：2022-11-17

申请号：US17742431

申请日：2022-05-12

Applicant: Japan Display Inc.

Inventor： Atsunori OYAMA

IPC: G06V40/13 ,  H01L27/30 ,  H01L51/00 ,  G06V40/145 ,  G06V40/10

Abstract: According to one embodiment, a biometric authentication device includes a resin substrate, an optical sensor and an illumination device. The resin substrate has flexibility. The optical sensor is disposed on the resin substrate. The illumination device is disposed on the resin substrate. The optical sensor and the illumination device are disposed on the resin substrate so as to face each other with a detection target interposed therebetween when the biometric authentication device is mounted on the detection target. The optical sensor detects light emitted from the illumination device and transmitted through the detection target.