公开(公告)号：US20250134462A1

公开(公告)日：2025-05-01

申请号：US19009680

申请日：2025-01-03

Applicant: Japan Display Inc. ,  The University of Tokyo

Inventor： Kento Himoto ,  Takashi Nakamura ,  Takao Someya ,  Tomoyuki Yokota ,  Dongkai Cheng

IPC: A61B5/00 ,  A61B5/1455

Abstract: According to an aspect, a detection device includes: a plurality of optical sensors arranged in a detection area; a light source configured to emit light to the optical sensors; an analog front-end (AFE) circuit configured to acquire a detection value of each of the optical sensors; and a signal processing circuit configured to acquire predefined biometric information based on first time-domain data obtained by acquiring the detection values in chronological order. The signal processing circuit is configured to: convert the first time-domain data into a time-domain matrix and perform singular value decomposition on the time-domain matrix, and inversely calculate second time-domain data based on a predetermined singular value among a plurality of singular values obtained as a result of the singular value decomposition; and acquire the biometric information that changes in chronological order as image information using the second time-domain data.

公开(公告)号：US12237346B2

公开(公告)日：2025-02-25

申请号：US18225809

申请日：2023-07-25

Applicant: Japan Display Inc. ,  The University of Tokyo

Inventor： Keiichi Saito ,  Takashi Nakamura ,  Gen Koide ,  Takao Someya ,  Tomoyuki Yokota

IPC: H01L27/144 ,  H01L31/101

Abstract: According to an aspect, a detection device includes a plurality of optical sensors arranged on a substrate. Each of the optical sensors includes a first photodiode and a second photodiode that is coupled in series and in an opposite direction to the first photodiode.

公开(公告)号：US12143379B2

公开(公告)日：2024-11-12

申请号：US17488295

申请日：2021-09-29

Applicant: Japan Display Inc.

Inventor： Masahiro Tada ,  Takashi Nakamura ,  Akio Takimoto ,  Tomokatsu Kinugawa

IPC: H04L9/40 ,  G06F3/041 ,  G06V10/141 ,  G06V40/12 ,  G06V40/13

Abstract: A biometric authentication system is a biometric authentication system having a detection device and an authentication device performing personal authentication. The detection device has a plurality of sensor elements, a plurality of gate lines and a plurality of signal lines provided in correspondence with the sensor elements, and gate line drive circuit scanning the gate lines.

公开(公告)号：US20170235399A1

公开(公告)日：2017-08-17

申请号：US15434559

申请日：2017-02-16

Applicant: Japan Display Inc.

Inventor： Takanori TSUNASHIMA ,  Takashi Nakamura ,  Masahiro Tada ,  Kazuhide Mochizuki

IPC: G06F3/041 ,  G02F1/1333 ,  G09G3/36 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1335 ,  G06F3/044 ,  G02F1/1368

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/134336 ,  G02F1/136209 ,  G02F1/13624 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/13685 ,  G02F2201/121 ,  G02F2201/123 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04107 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2354/00

Abstract: According to one embodiment, a liquid crystal display device includes touch-sensor electrodes, an array substrate including pixel electrodes, gate lines, source lines, switching elements, a light-shielding layer, and a plurality of stripe-like common electrodes, a counter-substrate, and a liquid crystal layer, wherein the common electrodes included in the array substrate are used not only as electrodes for display, but also as touch-sensor electrodes and, in a touch operation, a touch drive signal is input to each drive unit electrode including a plurality of common electrodes, and the light-shielding layer is divided into parts each of which corresponds to the drive unit electrode, and is provided to extend across a region opposed to a region of the drive unit electrode.

公开(公告)号：US20160291738A1

公开(公告)日：2016-10-06

申请号：US15180704

申请日：2016-06-13

Applicant: JAPAN DISPLAY INC.

Inventor： Yoshiro AOKI ,  Takashi Nakamura ,  Masahiro Tada ,  Hirotaka Hayashi ,  Makoto Shibusawa ,  Yutaka Umeda ,  Miyuki Ishikawa

IPC: G06F3/044 ,  H01L51/52 ,  H01L27/32

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/047 ,  G06F2203/04103 ,  G06F2203/04107 ,  G06F2203/04111 ,  G06F2203/04112 ,  H01L27/323 ,  H01L51/5237 ,  H01L51/524 ,  H01L51/5253

Abstract: According to one embodiment, a lateral-electric-field liquid crystal display device includes a light-emitting display layer including OLEDs and a driving circuit controlling light emission of the OLEDs, a moisture impermeable film provided to be laminated on the light-emitting display layer to prevent infiltration of moisture into the light-emitting display layer, an optical substrate provided separately from the moisture impermeable film and subjecting light from the light-emitting display region to optical processing, a first touch electrode group serving as one electrode group of touch electrodes and provided on a back surface of the optical substrate, and an extraction electrode group formed to be laminated on the moisture impermeable film, the extraction electrode group and the optical substrate have an overlapping part in plan view, and electrodes of the first touch electrode group being electrically connected to electrodes of the extraction electrode group in the overlapping part.

公开(公告)号：US20140225844A1

公开(公告)日：2014-08-14

申请号：US14151181

申请日：2014-01-09

Applicant: Japan Display Inc.

Inventor： Masahiro TADA ,  Yutaka Umeda ,  Takashi Nakamura ,  Hirotaka Hayashi

IPC: G06F3/01 ,  G06F3/041

CPC classification number: G06F3/016 ,  G06F3/044

Abstract: According to one embodiment, a touchpanel includes, a plurality of electrodes arranged in each of a first direction and a second direction on the touchpanel, a module configured to supply a signal for detecting a position of a conductor on the touchpanel to each of the electrodes, and configured to compute the position of the conductor based on a signal output from the electrode, a module configured to output a tactile signal to an electrode in a vicinity to the position of the conductor, a module configured to switch between a signal line from the touch detection module and a signal line from the tactile output module, and to connect the signal line to a signal line from each of the electrodes, and a control module configured to control operations of the modules.

Abstract translation: 根据一个实施例，触摸屏包括：多个电极，其布置在触摸屏上的第一方向和第二方向中的每一个中;模块，被配置为提供用于检测触摸面板上的导体的位置的信号到每个电极 并且被配置为基于从所述电极输出的信号来计算所述导体的位置，所述模块被配置为向所述导体的位置附近的电极输出触觉信号，所述模块被配置为在所述导体的信号线之间切换， 触摸检测模块和来自触觉输出模块的信号线，并且将信号线连接到来自每个电极的信号线;以及控制模块，被配置为控制模块的操作。

公开(公告)号：US12223763B2

公开(公告)日：2025-02-11

申请号：US18225838

申请日：2023-07-25

Applicant: Japan Display Inc.

Inventor： Gen Koide ,  Keiichi Saito ,  Takashi Nakamura

IPC: G06V40/13 ,  G06V10/147 ,  G06V40/10 ,  G06V40/145

Abstract: According to an aspect, a detection device including a plurality of optical sensors arranged in a matrix having a row-column configuration, the detection device being configured to: detect a signal that is output from each of the optical sensors by reverse-biasing the optical sensor, and perform a refreshing operation to restore characteristics of the optical sensor to an initial state by forward-biasing the optical sensor for each predetermined period.

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.