公开(公告)号：US12264963B2

公开(公告)日：2025-04-01

申请号：US18659181

申请日：2024-05-09

Applicant: Japan Display Inc.

Inventor： Kazuki Matsunaga ,  Akio Takimoto ,  Shigesumi Araki

IPC: G01J1/04 ,  G01J1/42

Abstract: According to an aspect, a detection device includes: a plurality of photodiodes arranged on a substrate; a front light including a light guide plate disposed so as to overlap the photodiodes and a light source configured to emit light to a side surface of the light guide plate; and an optical filter layer provided between the photodiodes and the light guide plate of the front light. The optical filter layer includes a plurality of light guide paths that at least partially overlap the photodiodes, and a light-blocking portion having higher absorptance of the light than the light guide paths. The detection device includes a reflective layer that is provided between the light guide plate and the optical filter layer and overlaps the light-blocking portion of the optical filter layer.

公开(公告)号：US11599001B2

公开(公告)日：2023-03-07

申请号：US17126475

申请日：2020-12-18

Applicant: Japan Display Inc.

Inventor： Akio Takimoto ,  Toshiki Kaneko ,  Takuo Kaitoh ,  Kazuhiro Nishiyama ,  Hiroyuki Kimura

IPC: G09G3/36 ,  G02F1/137 ,  F21V8/00 ,  G02F1/1335 ,  H04N5/225

Abstract: According to one embodiment, an electronic apparatus includes a camera, a first polarizer, a second polarizer, a liquid crystal panel, and a controller controlling the liquid crystal panel. The liquid crystal panel includes a first region and a second region. The controller controls a first opening mode of transmitting light through the first region and the second region, and a second opening mode of making a quantity of light transmitted through the first region smaller than a quantity of light transmitted through the second region.

公开(公告)号：US11215862B2

公开(公告)日：2022-01-04

申请号：US17153336

申请日：2021-01-20

Applicant: Japan Display Inc.

Inventor： Akio Takimoto ,  Toshiki Kaneko ,  Takuo Kaitoh ,  Kazuhiro Nishiyama ,  Hiroyuki Kimura

IPC: G02F1/1333 ,  G02F1/29 ,  F21V8/00 ,  G02F1/1335 ,  H04N5/225 ,  G02F1/1343

Abstract: According to one embodiment, an electronic equipment includes a liquid crystal panel including a display portion, a polarizer superposed on the display portion, and a detection element superposed on the liquid crystal panel and the polarizer to detect infrared rays through the liquid crystal panel and the polarizer.

公开(公告)号：US12178059B2

公开(公告)日：2024-12-24

申请号：US17500329

申请日：2021-10-13

Applicant: Japan Display Inc. ,  The University of Tokyo

Inventor： Takashi Nakamura ,  Makoto Uchida ,  Masahiro Tada ,  Marina Mochizuki ,  Hirofumi Kato ,  Akio Takimoto ,  Takao Someya ,  Tomoyuki Yokota

IPC: H01L29/78 ,  H01L29/786 ,  H10K39/32 ,  A61B5/021 ,  G06V40/13

Abstract: A detection device includes a photodiode, and a thin-film transistor coupled to the photodiode. The thin-film transistor includes a semiconductor layer between a light-blocking layer and the photodiode, and an electrode layer between the semiconductor layer and the photodiode, and the electric layer includes a source electrode and a drain electrode of the thin-film transistor. The source electrode extends to a position facing the light-blocking layer with the semiconductor layer interposed therebetween.

公开(公告)号：US11989270B2

公开(公告)日：2024-05-21

申请号：US17405202

申请日：2021-08-18

Applicant: Japan Display Inc.

Inventor： Masahiro Tada ,  Takashi Nakamura ,  Akio Takimoto

IPC: G06F3/02 ,  G06F3/0354 ,  G06F21/32 ,  G06V40/12 ,  G06V40/14 ,  G06V40/70

CPC classification number: G06F21/32 ,  G06F3/021 ,  G06F3/03543 ,  G06V40/1365 ,  G06V40/70 ,  G06V40/14

Abstract: A detection device includes an input unit configured to receive an operation of a user, and a sensor provided in the input unit and configured to detect biological information of the user when the user operates the input unit.

公开(公告)号：US11854299B2

公开(公告)日：2023-12-26

申请号：US17500147

申请日：2021-10-13

Applicant: Japan Display Inc. ,  The University of Tokyo

Inventor： Hirofumi Kato ,  Makoto Uchida ,  Takanori Tsunashima ,  Takashi Nakamura ,  Akio Takimoto ,  Takao Someya ,  Tomoyuki Yokota

IPC: G06V40/13 ,  G06V40/12 ,  A61B5/1172 ,  G06F21/32 ,  G06V40/145

CPC classification number: G06V40/1324 ,  A61B5/1172 ,  G06F21/32 ,  G06V40/1341 ,  G06V40/1365 ,  G06V40/145

Abstract: A detection device includes a plurality of optical sensors arranged in a detection area, a light source configured to emit light that is emitted to an object to be detected and is detected by the optical sensors, and a processor configured to perform processing based on outputs from the optical sensors. The processor is configured to determine, based on the outputs of the respective optical sensors obtained at a cycle of a predetermined period, an optical sensor an output of which is to be employed from among the optical sensors.

公开(公告)号：US12164188B2

公开(公告)日：2024-12-10

申请号：US17873310

申请日：2022-07-26

Applicant: Japan Display Inc.

Inventor： Yoshiro Aoki ,  Akio Takimoto ,  Nobuyuki Suzuki ,  Yoshiomi Yoshii ,  Hirondo Nakatogawa

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/1343 ,  H04M1/02 ,  H04N23/57

Abstract: According to one embodiment, an electronic device includes a liquid crystal panel and a camera. The liquid crystal panel includes a display area, an incident light control area, and an emitted light control area. The camera includes a light-entering surface and a light source. The liquid crystal panel is configured to selectively transmit visible light emitted from the light source in the emitted light control area and to selectively transmit visible light from outside in order to cause visible light to enter the camera from the outside in the incident light control area.

公开(公告)号：US11982900B2

公开(公告)日：2024-05-14

申请号：US18168087

申请日：2023-02-13

Applicant: Japan Display Inc.

Inventor： Akio Takimoto ,  Toshiki Kaneko ,  Takuo Kaitoh ,  Kazuhiro Nishiyama ,  Hiroyuki Kimura

IPC: G02F1/1335 ,  G02F1/1333

CPC classification number: G02F1/133553 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133524 ,  G02F1/133528

Abstract: According to one embodiment, an electronic apparatus includes a camera, a liquid crystal panel including a display portion overlaid on the camera, a light guide having a first side surface and a main surface opposed to the liquid crystal panel and a first through hole, and a light source opposed to the first side surface. The camera is provided in the first through hole.

公开(公告)号：US11914258B2

公开(公告)日：2024-02-27

申请号：US18148072

申请日：2022-12-29

Applicant: Japan Display Inc.

Inventor： Akio Takimoto ,  Toshiki Kaneko ,  Takuo Kaitoh ,  Kazuhiro Nishiyama ,  Hiroyuki Kimura

IPC: G09G3/36 ,  G02F1/137 ,  F21V8/00 ,  G02F1/1335 ,  H04N23/57

CPC classification number: G02F1/137 ,  G02B6/0055 ,  G02F1/133528 ,  G09G3/36 ,  H04N23/57 ,  G09G2360/145

Abstract: According to one embodiment, an electronic apparatus includes a camera, a first polarizer, a second polarizer, a liquid crystal panel, and a controller controlling the liquid crystal panel. The liquid crystal panel includes a first region and a second region. The controller controls a first opening mode of transmitting light through the first region and the second region, and a second opening mode of making a quantity of light transmitted through the first region smaller than a quantity of light transmitted through the second region.

公开(公告)号：US11436859B2

公开(公告)日：2022-09-06

申请号：US17233650

申请日：2021-04-19

Applicant: Japan Display Inc.

Inventor： Takashi Nakamura ,  Makoto Uchida ,  Takanori Tsunashima ,  Hirofumi Kato ,  Akio Takimoto

IPC: G06V40/13

Abstract: A fingerprint detection device includes a substrate, a plurality of photoelectric conversion elements that are provided to the substrate and each output a signal corresponding to light emitted thereto, a plurality of signal lines coupled to the photoelectric conversion elements, a detection circuit that is electrically coupled to the photoelectric conversion elements through the signal lines, and a signal line selection circuit that switches the number of the signal lines to be coupled to the one detection circuit.