公开(公告)号：US20230056997A1

公开(公告)日：2023-02-23

申请号：US17885716

申请日：2022-08-11

Applicant: Japan Display Inc.

Inventor： Hirofumi KATO

IPC: G06K7/14 ,  G06V40/13

Abstract: According to an aspect, a detection system includes: a sensor provided with a plurality of photosensors in a detection area; a controller configured to control the sensor; and a data storage configured to store correction value data including correction values for detection values of the photosensors and identification codes of a plurality of the sensors in such a manner that the identification codes are associated one-to-one with the correction value data. The controller is configured to acquire the correction value data corresponding to the identification code of the sensor from the data storage and correct the detection values of the photosensors based on the acquired correction value data.

公开(公告)号：US20220037410A1

公开(公告)日：2022-02-03

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: H01L27/30 ,  H01L29/786

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：US20220036036A1

公开(公告)日：2022-02-03

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: G06K9/00 ,  A61B5/1172 ,  G06F21/32

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：US20220031182A1

公开(公告)日：2022-02-03

申请号：US17500179

申请日：2021-10-13

Applicant: Japan Display Inc. ,  The University of Tokyo

Inventor： Hirofumi KATO ,  Takanori TSUNASHIMA ,  Makoto UCHIDA ,  Takashi NAKAMURA ,  Akio TAKIMOTO ,  Takao SOMEYA ,  Tomoyuki YOKOTA

IPC: A61B5/024 ,  A61B5/0285 ,  A61B5/00

Abstract: A detection device includes a first optical sensor, a second optical sensor disposed at a predetermined distance from the first optical sensor, a light source that emits light to be detected by the first optical sensor and the second optical sensor facing a living body tissue including a blood vessel, and a processor that calculates a pulse wave velocity of the blood vessel based on a time-series variation of an output of the first optical sensor, a time-series variation of an output of the second optical sensor, and the predetermined distance.

公开(公告)号：US20210326623A1

公开(公告)日：2021-10-21

申请号：US17358950

申请日：2021-06-25

Applicant: Japan Display Inc. ,  The University of Tokyo

Inventor： Hirofumi KATO ,  Takanori TSUNASHIMA ,  Makoto UCHIDA ,  Takashi NAKAMURA ,  Akio TAKIMOTO ,  Takao SOMEYA ,  Tomoyuki YOKOTA

IPC: G06K9/20 ,  G06K9/00 ,  G01J1/04 ,  G01J1/42 ,  H01L27/146 ,  H01L31/167

Abstract: A detection device according to an aspect includes: a sensor base; a plurality of photoelectric conversion elements that are provided in a detection area of the sensor base and are configured to receive light incident thereon and output signals corresponding to the received light; a plurality of switching elements provided in the respective photoelectric conversion elements; a plurality of gate lines that are coupled to the switching elements and extend in a first direction; a first light source configured to emit first light having a first maximum emission wavelength; and a second light source configured to emit second light having a second maximum emission wavelength.

公开(公告)号：US20190043432A1

公开(公告)日：2019-02-07

申请号：US16154256

申请日：2018-10-08

Applicant: Japan Display Inc.

Inventor： Hirofumi KATO

IPC: G09G3/34 ,  G02F1/1334 ,  G02F1/1343 ,  G02F1/137 ,  G02F1/13 ,  G09G3/36

Abstract: In a display device, an image display panel updates an image in a frame cycle including an image scanning period and a vertical blanking period, a light modulation layer is disposed at a back of the panel and switched to a scattering or transmission state depending on an electric field applied, a light source emits light which enters the light modulation layer from its side and travels therethrough, electrodes are formed according to divided areas of the light modulation layer arranged in a direction of the light and apply the electric field to the light modulation layer, and a controller drives the electrodes in synchronization with image scanning to switch the divided areas to the scattering state in order during the image scanning period, and drives the electrodes according to distances from the side to control the scattering state on the individual divided areas during the vertical blanking period.

公开(公告)号：US20150379931A1

公开(公告)日：2015-12-31

申请号：US14753733

申请日：2015-06-29

Applicant: Japan Display Inc.

Inventor： Hirofumi KATO ,  Takayuki NAKANISHI ,  Tatsuya YATA

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0276 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2320/0673

Abstract: According to one embodiment, a display device includes a plurality of pixels arranged in a matrix on a substrate, each including a luminescent element and a drive transistor configured to supply current to the luminescent element for light emission, and a panel characteristics correction unit configured to correct for display a video signal supplied from outside, to be supplied to a respective one of the pixels, and the panel characteristics correction unit includes an EL characteristics correction unit configured to correct the video signal with inverse luminescent characteristics of the luminescent element, and a TFT characteristics correction unit configured to correct the video signal with inverse drive characteristics of the drive transistor.

Abstract translation: 根据一个实施例，显示装置包括在基板上以矩阵形式布置的多个像素，每个像素包括发光元件和配置为向发光元件供应电流以用于发光的驱动晶体管，以及面板特性校正单元，被配置为 正确地显示从外部提供的视频信号，以提供给各个像素，面板特性校正单元包括EL特性校正单元，被配置为校正具有发光元件的反向发光特性的视频信号，以及 TFT特性校正单元，被配置为校正具有驱动晶体管的反向驱动特性的视频信号。