公开(公告)号：US20240304025A1

公开(公告)日：2024-09-12

申请号：US18669684

申请日：2024-05-21

Applicant: Japan Display Inc.

Inventor： Kento HIMOTO ,  Takashi NAKAMURA

IPC: G06V40/13 ,  G06F3/042

CPC classification number: G06V40/1318 ,  G06F3/0421

Abstract: A detection device includes a substrate, a plurality of photodiodes that are provided on the substrate, and include organic semiconductors, a plurality of transistors that are provided correspondingly to the respective photodiodes, and each include a semiconductor layer, a gate electrode, and a source electrode, a plurality of lower electrodes that are provided between the transistors and the photodiodes in a direction orthogonal to the substrate, and are provided correspondingly to the respective photodiodes, an upper electrode provided across the photodiodes, a first auxiliary capacitor electrode provided between the substrate and each of the photodiodes in the direction orthogonal to the substrate, and a second auxiliary capacitor electrode that is provided in the same layer as that of the semiconductor layer or the source electrode, and faces the first auxiliary capacitor electrode with an insulating film interposed between the first auxiliary capacitor electrode and the second auxiliary capacitor electrode.

公开(公告)号：US20230054533A1

公开(公告)日：2023-02-23

申请号：US17890642

申请日：2022-08-18

Applicant: Japan Display Inc.

Inventor： Kento HIMOTO ,  Takashi NAKAMURA

IPC: H01L27/30

Abstract: A detection device includes a substrate, a plurality of photodiodes provided on the substrate, a plurality of transistors provided correspondingly to the respective photodiodes, a plurality of gate lines that extend in a first direction, a plurality of signal lines that extend in a second direction intersecting the first direction, a plurality of lower electrodes that are provided between the transistors and the photodiodes in a direction orthogonal to the substrate, and are provided correspondingly to the respective photodiodes, an upper electrode provided so as to extend across the photodiodes, and a reflective layer provided between the substrate and each of the photodiodes in the direction orthogonal to the substrate. Each of the lower electrodes has a smaller area than an area defined by the gate lines and the signal lines, and the reflective layer is provided between the lower electrodes adjacent to each other in a plan view.

公开(公告)号：US20230055390A1

公开(公告)日：2023-02-23

申请号：US17888975

申请日：2022-08-16

Applicant: Japan Display Inc.

Inventor： Kento HIMOTO ,  Takashi NAKAMURA

IPC: G06V40/13 ,  G06F3/042

Abstract: A detection device includes a substrate, a plurality of photodiodes that are provided on the substrate, and include organic semiconductors, a plurality of transistors that are provided correspondingly to the respective photodiodes, and each include a semiconductor layer, a gate electrode, and a source electrode, a plurality of lower electrodes that are provided between the transistors and the photodiodes in a direction orthogonal to the substrate, and are provided correspondingly to the respective photodiodes, an upper electrode provided across the photodiodes, a first auxiliary capacitor electrode provided between the substrate and each of the photodiodes in the direction orthogonal to the substrate, and a second auxiliary capacitor electrode that is provided in the same layer as that of the semiconductor layer or the source electrode, and faces the first auxiliary capacitor electrode with an insulating film interposed between the first auxiliary capacitor electrode and the second auxiliary capacitor electrode.

公开(公告)号：US20220399403A1

公开(公告)日：2022-12-15

申请号：US17838314

申请日：2022-06-13

Applicant: Japan Display Inc.

Inventor： Isao SUZUMURA ,  Kento HIMOTO ,  Takashi NAKAMURA ,  Masahiro TADA ,  Yasushi TOMIOKA

IPC: H01L27/30 ,  H01L51/42 ,  H01L51/44

Abstract: A photo detecting device, includes a plurality of photodiodes arranged above a substrate, a lower electrode and a first inorganic insulating film that are provided between the substrate and the photodiodes in a direction orthogonal to a surface of the substrate, and an upper electrode provided above the photodiodes. Each of the photodiodes comprises an active layer, a first carrier transport layer provided between the active layer and the lower electrode, and a second carrier transport layer provided between the active layer and the upper electrode, the first inorganic insulating film is provided between the lower electrode and the first carrier transport layer, and the first inorganic insulating film covers at least an end on an outer edge side of the lower electrode.

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：US20240180454A1

公开(公告)日：2024-06-06

申请号：US18442219

申请日：2024-02-15

Applicant: Japan Display Inc.

Inventor： Kento HIMOTO ,  Takashi NAKAMURA ,  Gen KOIDE

IPC: A61B5/1455

CPC classification number: A61B5/14551 ,  A61B2562/185

Abstract: According to an aspect, a detection device includes: a base member having a first principal surface; a detection area provided to the first principal surface; a sensor including a plurality of photodiodes; gate lines; signal lines; and a light emission device. The light emission device includes light sources. A lit area in which the light emission device is lit up is a portion of the detection area overlapping the light sources. A portion of the detection area not overlapping the lit area is an unlit area in which the light emission device is not lit up. Photodiodes that overlap the unlit area are selected from among the photodiodes, and amounts of light received by the selected photodiodes are read.

公开(公告)号：US20230165019A1

公开(公告)日：2023-05-25

申请号：US18101183

申请日：2023-01-25

Applicant: Japan Display Inc. ,  The University of Tokyo

Inventor： Kento HIMOTO ,  Takashi NAKAMURA ,  Takao SOMEYA ,  Tomoyuki YOKOTA

IPC: H10K39/32

CPC classification number: H10K39/32

Abstract: A detection device is a detection device including a plurality of optical sensors arranged on a substrate. In each of the optical sensors, a lower electrode, an electron transport layer, an active layer, a hole transport layer, and an upper electrode are stacked in a direction orthogonal to a surface of the substrate in the order as listed. The active layer contains an organic semiconductor. The hole transport layer includes a metal oxide layer and is provided on the active layer so as to be in contact therewith.