公开(公告)号：US20240324377A1

公开(公告)日：2024-09-26

申请号：US18678432

申请日：2024-05-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Daisuke KUBOTA ,  Nobuharu OHSAWA ,  Takeyoshi WATABE ,  Taisuke KAMADA

IPC: H10K59/32 ,  H10K50/85 ,  H10K102/00

CPC classification number: H10K59/32 ,  H10K50/85 ,  H10K2102/311

Abstract: A display device that has a function of emitting visible light and infrared light and a function of detecting light. The display device is a display device including a first light-emitting device, a second light-emitting device, and a light-receiving device, in a display portion. The first light-emitting device includes a first pixel electrode, a first optical adjustment layer, a first light-emitting layer, a second light-emitting layer, and a common electrode. The second light-emitting device includes a second pixel electrode, a second optical adjustment layer, the first light-emitting layer, the second light-emitting layer, and the common electrode. The light-receiving device includes a third pixel electrode, an active layer, and the common electrode. The active layer includes an organic compound. The first light-emitting device emits infrared light emitted by the first light-emitting layer. The second light-emitting device emits visible light emitted by the second light-emitting layer. The light-receiving device has a function of absorbing at least part of visible light and infrared light.

公开(公告)号：US20240260454A1

公开(公告)日：2024-08-01

申请号：US18575952

申请日：2022-06-09

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yasuhiro NIIKURA ,  Daisuke KUBOTA ,  Taisuke KAMADA ,  Sachiko KAWAKAMI ,  Anna TADA ,  Satoshi SEO

IPC: H10K85/60 ,  H10K30/30 ,  H10K39/34

CPC classification number: H10K85/636 ,  H10K85/622 ,  H10K85/626 ,  H10K85/631 ,  H10K85/633 ,  H10K85/6572 ,  H10K85/6576 ,  H10K30/30 ,  H10K39/34 ,  H10K85/615 ,  H10K85/6574

Abstract: A light-receiving device with a novel structure is provided. The provided light-receiving device includes a light-receiving layer between a pair of electrodes. The light-receiving layer includes an active layer. The active layer contains a first organic compound and a second organic compound. An absorption spectrum of the first organic compound has one or more peaks. At least one peak wavelength of the peaks is greater than or equal to 400 nm and less than or equal to 700 nm. The HOMO level of the second organic compound is higher than the HOMO level of the first organic compound. The difference between the HOMO level of the first organic compound and the HOMO level of the second organic compound is preferably higher than or equal to 0.2 eV and lower than or equal to 1.5 eV and further preferably higher than or equal to 0.4 eV and lower than or equal to 1.5 eV.

公开(公告)号：US20240164166A1

公开(公告)日：2024-05-16

申请号：US18279925

申请日：2022-02-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke KUBOTA ,  Taisuke KAMADA ,  Akio YAMASHITA ,  Kenichi OKAZAKI ,  Koji KUSUNOKI ,  Tomoaki ATSUMI

IPC: H10K59/35 ,  G09G3/3225 ,  H10K39/34

CPC classification number: H10K59/353 ,  G09G3/3225 ,  H10K39/34 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2310/08

Abstract: A semiconductor device having a light detection function and including a high-resolution display portion is provided. The semiconductor device is a display apparatus including a light-emitting device, a light-receiving device, and a substrate. The light-emitting device includes a first electrode, a light-emitting layer, a first electron-transport layer, an electron-injection layer, and a second electrode stacked in this order over the substrate. The light-receiving device includes a third electrode, an active layer, a first hole-transport layer, the electron-injection layer, and the second electrode stacked in this order over the substrate. The first electrode is supplied with a first potential. The second electrode is preferably supplied with a second potential lower than the first potential. The third electrode is preferably supplied with a third potential higher than the second potential.

公开(公告)号：US20230180491A1

公开(公告)日：2023-06-08

申请号：US17925628

申请日：2021-05-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Taisuke KAMADA ,  Yasuhiro NIIKURA ,  Daisuke KUBOTA ,  Ryo HATSUMI ,  Akio YAMASHITA ,  Sachiko KAWAKAMI ,  Satoshi SEO

IPC: H10K39/34 ,  H10K30/81 ,  H10K50/125 ,  G06F9/30

CPC classification number: H10K39/34 ,  H10K30/81 ,  H10K50/125 ,  G06F9/3001

Abstract: A novel optical functional device that is highly convenient, useful, or reliable is provided. The optical functional device includes a light-emitting function, a photoelectric conversion function, a first electrode, a second electrode, and an optical functional layer. The light-emitting function converts electrical energy into first light, the first light has a first emission spectrum, and the first emission spectrum exhibits a maximum peak at a first wavelength. At a second wavelength, the intensity of the first emission spectrum is 80% of the maximum peak. The photoelectric conversion function has a spectral sensitivity characteristic; at a third wavelength, the spectral sensitivity characteristic has a maximum sensitivity within a range of 420 to 720 nm inclusive; and at a fourth wavelength, the sensitivity of the spectral sensitivity characteristic is 80% of the maximum sensitivity. The third wavelength is positioned closer to the second wavelength than to the first wavelength, and the fourth wavelength is positioned closer to the first wavelength than to the third wavelength.

公开(公告)号：US20230031064A1

公开(公告)日：2023-02-02

申请号：US17788322

申请日：2020-12-28

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daisuke KUBOTA ,  Ryo HATSUMI ,  Taisuke KAMADA ,  Rihoko OHMURA

IPC: G06F21/32 ,  G06V40/13 ,  G06F3/04886

Abstract: To provide a highly secure electronic device. The electronic device includes a control portion, a detection portion, and a memory portion. The detection portion has a function of detecting touch operation and a function of obtaining first finger data on a touching finger. The memory portion has a function of retaining second finger data registered in advance. The control portion has functions of comparing the first finger data with the second finger data and executing predetermined processing when these data match. The first finger data includes first fingerprint data and first positional data, and the second finger data includes second fingerprint data and second positional data.

公开(公告)号：US20220393123A1

公开(公告)日：2022-12-08

申请号：US17732790

申请日：2022-04-29

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke KUBOTA ,  Taisuke KAMADA ,  Yasuhiro NIIKURA ,  Sachiko KAWAKAMI ,  Anna TADA ,  Satoshi SEO

IPC: H01L51/42

Abstract: A light-receiving device that is highly convenient, useful, or reliable is provided. The light-receiving device includes a light-receiving layer between a pair of electrodes, the light-receiving layer includes an active layer and a hole-transport layer, the hole-transport layer contains a first organic compound, and the first organic compound is an aromatic monoamine compound or a heteroaromatic monoamine compound having at least one skeleton of biphenylamine, carbazolylamine, dibenzofuranylamine, dibenzothiophenylamine, fluorenylamine, and spirofluorenylamine. Alternatively, the light-receiving device includes a light-receiving layer between a pair of electrodes, the light-receiving layer includes an electron-transport layer and an active layer, the electron-transport layer contains a second organic compound, and the second organic compound includes a triazine ring.

公开(公告)号：US20220376182A1

公开(公告)日：2022-11-24

申请号：US17727158

申请日：2022-04-22

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daisuke KUBOTA ,  Taisuke KAMADA ,  Yasuhiro NIIKURA ,  Ryo HATSUMI ,  Akio YAMASHITA ,  Sachiko KAWAKAMI ,  Anna TADA ,  Satoshi SEO

IPC: H01L51/00 ,  H01L51/50 ,  C07D401/04 ,  C07D401/06 ,  C07F7/22 ,  C07F15/00 ,  C07D519/00 ,  C07D209/82 ,  C07D413/10 ,  C07D403/10 ,  C07D405/04 ,  C07D219/16 ,  C07D221/20 ,  C07D307/91 ,  C07D409/10 ,  C07D333/76

Abstract: To provide a novel photoelectric conversion device that is highly convenient, useful, or reliable. The photoelectric conversion device includes a first electrode, a second electrode, and a first unit. The first unit is located between the first electrode and the second electrode. The first unit contains a first electron-donating material and a first electron-accepting material. The first electron-donating material is a condensed aromatic compound, and the first electron-accepting material has a perylene skeleton and two or more alkyl groups. The alkyl groups each independently have 1 to 13 carbon atoms.

公开(公告)号：US20220344443A1

公开(公告)日：2022-10-27

申请号：US17642425

申请日：2020-09-09

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Koji KUSUNOKI ,  Kazunori WATANABE ,  Susumu KAWASHIMA ,  Daisuke KUBOTA ,  Taisuke KAMADA ,  Ryo HATSUMI

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/50

Abstract: The resolution of a display apparatus having a light detection function is increased. A display apparatus includes a plurality of transistors and a light-emitting and light-receiving device in a subpixel. The light-emitting and light-receiving device has a function of emitting light of a first color and a function of receiving light of a second color. One of a source and a drain of a first transistor is electrically connected to a first wiring, and the other thereof is electrically connected to a gate of a second transistor. One electrode of the light-emitting and light-receiving device is electrically connected to one of a source and a drain of the second transistor, one of a source and a drain of a third transistor, and one of a source and a drain of a fifth transistor. One of a source and a drain of a fourth transistor is electrically connected to a second wiring, and the other thereof is electrically connected to the other of the source and the drain of the third transistor.

公开(公告)号：US20220294981A1

公开(公告)日：2022-09-15

申请号：US17639683

申请日：2020-09-01

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daisuke KUBOTA ,  Ryo HATSUMI ,  Taisuke KAMADA

IPC: H04N5/232 ,  H04N5/225 ,  G06T5/00 ,  G06T5/50 ,  H01L27/28

Abstract: A thin lightweight imaging device is provided. A highly convenient imaging device is provided. The imaging unit includes an imaging unit, a memory, and an arithmetic circuit. The imaging unit includes a light-receiving device, a first light-emitting device, and a second light-emitting device. The first light-emitting device has a function of emitting light in a wavelength range that is different from a wavelength range of light emitted by the second light-emitting device. The imaging unit has a function of making the first light-emitting device emit light and acquiring first image data. The imaging unit has a function of making the second light-emitting device emit light and acquiring second image data. The memory has a function of retaining the first reference data and the second reference data. The arithmetic circuit has a function of correcting the first image data with the use of the first reference data retained in the memory and calculating first correction image data. The arithmetic circuit has a function of correcting the second image data with the use of the second reference data retained in the memory and calculating second correction image data. The arithmetic circuit has a function of combining the first correction image data and the second correction image data to generate synthesized image data. The light-receiving device includes a first pixel electrode, and the first light-emitting device includes a second pixel electrode on the same plane as the first pixel electrode.

公开(公告)号：US20220285461A1

公开(公告)日：2022-09-08

申请号：US17632340

申请日：2020-07-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Ryo Hatsumi ,  Taisuke KAMADA ,  Kazunori WATANABE ,  Daisuke KUBOTA

IPC: H01L27/32 ,  G06F21/32

Abstract: A display device having both a function of a touch sensor and a function of fingerprint recognition is provided. The display device includes a first display region and a second display region. The first display region and the second display region are provided in contact with each other. The first display region includes a plurality of first light-emitting elements and a plurality of first photodetectors. The second display region includes a plurality of second light-emitting elements and a plurality of second photodetectors. The first photodetector has a function of receiving first light emitted from the first light-emitting element. The second photodetector has a function of receiving second light emitted from the second light-emitting element. The first light-emitting elements and the first photodetectors are arranged in a matrix in the first display region. The second light-emitting elements and the second photodetectors are arranged in a matrix in the second display region. The second photodetectors are arranged in a higher density than the first photodetectors.