公开(公告)号：US20220093661A1

公开(公告)日：2022-03-24

申请号：US17540374

申请日：2021-12-02

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takayuki IKEDA

IPC: H01L27/146 ,  G06N3/08

Abstract: An imaging device that generates a pulse signal by utilizing photoelectric conversion operation is provided.
A data potential generated by the photoelectric conversion operation is input to a pulse generation circuit to output a pulse signal having a spike waveform. In addition, a structure in which product-sum operation of pulse signals is performed is provided, and digital data is generated from a new pulse signal. The digital data is taken into a neural network or the like, whereby processing such as image recognition can be performed. Processing up to taking an enormous amount of image data into a neural network or the like can be performed in the imaging device; thus, processing can be efficiently performed.

公开(公告)号：US20210374378A1

公开(公告)日：2021-12-02

申请号：US17282119

申请日：2019-10-01

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hidetomo KOBAYASHI ,  Takayuki IKEDA

IPC: G06K9/00 ,  H01L27/146

Abstract: A highly convenient imaging device is provided. Alternatively, a highly reliable imaging device is provided. Alternatively, a highly convenient authentication device is provided. Alternatively, a highly reliable authentication device is provided. The imaging device includes a substrate, a pixel array, and an adhesive layer. The substrate has flexibility, the pixel array is positioned over a first surface of the substrate, and the adhesive layer is positioned on a second surface facing the first surface of the substrate. The pixel array includes a light-receiving element and a light-emitting element. The light-receiving element has a function of sensing infrared light and includes a first pixel electrode, an active layer, and a common electrode. The light-emitting element has a function of emitting infrared light and includes a second pixel electrode, a light-emitting layer, and the common electrode. The active layer is positioned over the first pixel electrode and contains a first organic compound. The light-emitting layer is positioned over the second pixel electrode and contains a second organic compound different from the first organic compound. The common electrode includes a portion overlapping with the first pixel electrode with the active layer therebetween, and a portion overlapping with the second pixel electrode with the light-emitting layer therebetween.

公开(公告)号：US20210249703A1

公开(公告)日：2021-08-12

申请号：US16973666

申请日：2019-07-03

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takayuki IKEDA ,  Munehiro KOZUMA ,  Takanori MATSUZAKI ,  Ryota TAJIMA ,  Shunpei YAMAZAKI

IPC: H01M10/44 ,  H01L27/105 ,  H01L27/12 ,  H01L29/24 ,  H01L29/786 ,  H02J7/00 ,  H01M10/48

Abstract: A semiconductor device capable of charging that is less likely to cause deterioration of a power storage device is provided.
The amount of a charging current is adjusted in accordance with the ambient temperature. Charging under low-temperature environments is performed with a reduced charging current. When the ambient temperature is too low or too high, the charging is stopped. Measurement of the ambient temperature is performed with a memory element using an oxide semiconductor. The use of a memory element using an oxide semiconductor enables measurement of the ambient temperature and retention of the temperature information to be performed at the same time.

公开(公告)号：US20200226457A1

公开(公告)日：2020-07-16

申请号：US16831085

申请日：2020-03-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takayuki IKEDA ,  Takahiro FUKUTOME

IPC: G06N3/067 ,  H04N5/225 ,  H01L27/146 ,  H04N5/3745 ,  G06N3/063 ,  G06N3/04 ,  H04N5/378

Abstract: An imaging device connected to a neural network is provided. An imaging device having a neuron in a neural network includes a plurality of first pixels, a first circuit, a second circuit, and a third circuit. Each of the plurality of first pixels includes a photoelectric conversion element. The plurality of first pixels is electrically connected to the first circuit. The first circuit is electrically connected to the second circuit. The second circuit is electrically connected to the third circuit. Each of the plurality of first pixels generates an input signal of the neuron. The first circuit, the second circuit, and the third circuit function as the neuron. The third circuit includes an interface connected to the neural network.

公开(公告)号：US20200112320A1

公开(公告)日：2020-04-09

申请号：US16623588

申请日：2018-06-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takayuki IKEDA ,  Seiichi YONEDA

IPC: H03M1/66 ,  H03K3/037 ,  G11C7/16 ,  G11C11/56

Abstract: A semiconductor device in which an increase of circuit area is prevented is provided. A semiconductor device including a control circuit with a plurality of scan chain circuits, a DA converter electrically connected to the control circuit, and a plurality of potential holding units electrically connected to the DA converter is provided. The plurality of potential holding units each include a transistor including an oxide semiconductor in a channel formation region and a capacitor electrically connected to the transistor. In accordance with digital data held in any one of the plurality of scan chain circuits, an output potential output from the DA converter is held in any one of the plurality of potential holding units.

公开(公告)号：US20200091214A1

公开(公告)日：2020-03-19

申请号：US16618871

申请日：2018-05-29

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takayuki IKEDA

IPC: H01L27/146 ,  G06N3/08

Abstract: An imaging device that generates a pulse signal by utilizing photoelectric conversion operation is provided.A data potential generated by the photoelectric conversion operation is input to a pulse generation circuit to output a pulse signal having a spike waveform. In addition, a structure in which product-sum operation of pulse signals is performed is provided, and digital data is generated from a new pulse signal. The digital data is taken into a neural network or the like, whereby processing such as image recognition can be performed. Processing up to taking an enormous amount of image data into a neural network or the like can be performed in the imaging device; thus, processing can be efficiently performed.

公开(公告)号：US20180184030A1

公开(公告)日：2018-06-28

申请号：US15842938

申请日：2017-12-15

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takayuki IKEDA

IPC: H04N5/369 ,  H04N5/3745 ,  H01L29/786 ,  H01L27/146

Abstract: An imaging device that operates at high speed is provided. The imaging device includes an imaging circuit, two or more image processing blocks, and two or more selectors. The image processing blocks each include an image processing unit and a retention circuit, and the selectors each include a switch unit and a retention circuit. The imaging circuit has a function of generating image data by performing imaging operation. The image processing unit has a function of processing the image data generated by the imaging circuit. The retention circuit included in the image processing block has a function of receiving and retaining a parameter that is necessary for the image processing unit to perform processing. The switch unit has a function of outputting the image data generated by the imaging circuit or the image data processed by the image processing unit. The retention circuit included in the selector has a function of receiving and retaining a parameter that is output from the switch unit. The first retention circuit and the second retention circuit each include a transistor including a metal oxide in a channel formation region.

公开(公告)号：US20180059841A1

公开(公告)日：2018-03-01

申请号：US15685792

申请日：2017-08-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takayuki IKEDA ,  Yuki OKAMOTO ,  Kei TAKAHASHI ,  Shunpei YAMAZAKI

IPC: G06F3/041 ,  G06F1/32

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G06F1/3203 ,  G06F1/3265 ,  G06F3/04883 ,  Y02D10/153

Abstract: A display device with excellent visibility can be provided. The display device includes a display region displayed by a light-emitting element. In the display region, a point touched by a user is a first point, a point which has been touched by the user prior to the first point is a second point, a vector that starts at the first point and ends at the second point is a first vector, a vector obtained by multiplying the first vector by k (k is a real number) is a second vector, and a point that is the second vector away from the first point is a third point, the display region includes a first region and a second region obtained by excluding the first region from the display region, The first region includes a first circle and a second circle, the center of the first circle is the first point, and the center of the second circle is the third point. The luminance in the first region is higher than the luminance in the second region.

公开(公告)号：US20180038699A1

公开(公告)日：2018-02-08

申请号：US15667761

申请日：2017-08-03

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takayuki IKEDA

IPC: G01C21/32 ,  A63F13/26 ,  A63F13/92 ,  G06F1/16 ,  G06F3/01 ,  G09G5/397 ,  G06T19/00 ,  H04N13/00 ,  H04N13/02 ,  G01C21/20 ,  G06F3/14

CPC classification number: G01C21/32 ,  A63F13/26 ,  A63F13/92 ,  A63F13/95 ,  A63F2300/204 ,  G01C21/20 ,  G06F1/1616 ,  G06F1/3206 ,  G06F1/3265 ,  G06F3/011 ,  G06F3/1423 ,  G06F17/30 ,  G06F2200/1612 ,  G06F2200/1637 ,  G06T19/006 ,  G09G5/397 ,  H04N13/156 ,  H04N13/275 ,  H04N13/356 ,  Y02D10/153

Abstract: An object is to provide a novel data processing system. The data processing system includes a portable terminal, a network, a server, and a database. The portable terminal transmits position information to the server through the network. The server transmits, to the portable terminal through the network, a plurality of pieces of object data corresponding to the position information obtained from the database. Imaging data obtained by the portable terminal and the plurality of pieces of object data are compared, and when there is a piece of the object data that does not match the imaging data, the mismatched piece of the object data stored in the database is updated.

公开(公告)号：US20170110453A1

公开(公告)日：2017-04-20

申请号：US15291276

申请日：2016-10-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takayuki IKEDA

IPC: H01L27/088 ,  H01L23/535 ,  H01L27/115 ,  H01L29/24

CPC classification number: H01L27/088 ,  H01L23/535 ,  H01L27/115 ,  H01L29/24 ,  H03K19/0027 ,  H03K19/20

Abstract: A semiconductor device with a small number of transistors is provided. The semiconductor device includes a first transistor, a second transistor, a third transistor, a first wiring, and a second wiring. The first transistor includes a first gate and a second gate. The first gate and the second gate overlap with each other with a semiconductor therebetween. The first wiring and the second wiring are supplied with a high power supply potential and a low power supply potential, respectively. A first terminal of the first transistor is electrically connected to the first gate and the first wiring. A second terminal of the first transistor is electrically connected to the second gate. The second terminal of the first transistor is electrically connected to the second wiring through the second transistor and the third transistor. The first transistor, the second transistor, and the third transistor are preferably n-channel transistors.