公开(公告)号：US20210288357A1

公开(公告)日：2021-09-16

申请号：US16603487

申请日：2018-04-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutaka KURIKI ,  Ryota TAJIMA ,  Kouhei TOYOTAKA ,  Hideaki SHISHIDO ,  Toshiyuki ISA

IPC: H01M10/48 ,  H01M10/44 ,  G06N3/04 ,  G06N3/063 ,  H02J7/00

Abstract: A power storage system with excellent characteristics is provided. A power storage system with a high degree of safety is provided. A power storage system with less deterioration is provided. A storage battery with excellent characteristics is provided. The power storage system includes a neural network and a storage battery. The neural network includes an input layer, an output layer, and one or more hidden layers between the input layer and the output layer. The predetermined hidden layer is connected to the previous hidden layer or the previous input layer by a predetermined weight coefficient, and connected to the next hidden layer or the next output layer by a predetermined weight coefficient. In the storage battery, voltage and time at which the voltage is obtained are measured as one of sets of data. The sets of data measured at different times are input to the input layer and the operational condition of the storage battery is changed in accordance with a signal output from the output layer.

公开(公告)号：US20150270321A1

公开(公告)日：2015-09-24

申请号：US14669722

申请日：2015-03-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yasuhiro JINBO ,  Toshiyuki ISA ,  Tatsuya Honda

IPC: H01L27/32 ,  H01L29/786 ,  H01L29/24 ,  H01L21/02 ,  H01L29/45 ,  H01L29/423 ,  H01L51/56 ,  H01L29/66 ,  H01L29/49

CPC classification number: H01L21/02686 ,  H01L21/02532 ,  H01L21/02565 ,  H01L21/2026 ,  H01L27/12 ,  H01L27/1214 ,  H01L27/1266 ,  H01L27/283 ,  H01L27/3258 ,  H01L27/3274 ,  H01L28/40 ,  H01L29/24 ,  H01L29/42356 ,  H01L29/45 ,  H01L29/4908 ,  H01L29/495 ,  H01L29/66969 ,  H01L29/78603 ,  H01L29/7869 ,  H01L51/003 ,  H01L51/56 ,  H01L2227/323 ,  H01L2227/326 ,  H01L2251/5338

Abstract: An object of the invention is to provide a method for manufacturing semiconductor devices that are flexible in which elements fabricated using a comparatively low-temperature (less than 500° C.) process are separated from a substrate. After a molybdenum film is formed over a glass substrate, a molybdenum oxide film is formed over the molybdenum film, a nonmetal inorganic film and an organic compound film are stacked over the molybdenum oxide film, and elements fabricated by a comparatively low-temperature (less than 500° C.) process are formed using existing manufacturing equipment for large glass substrates, the elements are separated from the glass substrate.

公开(公告)号：US20220131392A1

公开(公告)日：2022-04-28

申请号：US17431302

申请日：2020-02-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Toshiyuki ISA ,  Takayuki IKEDA ,  Kei TAKAHASHI ,  Ryota TAJIMA

IPC: H02J7/00 ,  H01L27/02 ,  G01R31/367

Abstract: The safety is ensured in such a manner that an abnormality of a secondary battery is detected, for example, a phenomenon that lowers the safety of the secondary battery is detected early and a warning is given to a user. A first protection circuit and a second protection circuit are provided for one secondary battery. The first protection circuit includes a memory circuit including a transistor including an oxide semiconductor. Combination of a plurality of protection circuits enables a complementary double protection system in charging, and the safety can be further enhanced.

公开(公告)号：US20210190877A1

公开(公告)日：2021-06-24

申请号：US16761289

申请日：2018-11-07

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Toshiyuki ISA ,  Akihiro CHIDA ,  Ryota TAJIMA

IPC: G01R31/392 ,  G01R31/367 ,  G01R31/36 ,  G01R31/374

Abstract: An object is to predict a deterioration state of a secondary battery even in an environment where temperature and a charging voltage change. A lifetime estimation device of the secondary battery includes a measuring unit for measuring the capacity of the secondary battery in the full charging state; a temperature sensing unit for sensing the ambient temperature of the secondary battery; and a storage unit for storing a table of a proportional coefficient corresponding to temperature in advance, and a predicted deterioration line of the secondary battery is calculated with the use of a nonlinear regression equation approximated to a measured deterioration line obtained by the measuring unit. The lifetime estimation device may construct a lifetime estimation system with the use of a neural network.

公开(公告)号：US20230132746A1

公开(公告)日：2023-05-04

申请号：US18089199

申请日：2022-12-27

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryota TAJIMA ,  Toshiyuki ISA ,  Akihiro CHIDA

IPC: H01M10/42 ,  G01R31/367 ,  B60L58/18 ,  H01M10/48

Abstract: A highly safe power storage system is provided. If n (n is an integer over or equal to three) secondary batteries are used in a vehicle such as an electric vehicle, a circuit configuration is used with which the condition of each secondary battery is monitored using an anomaly detection unit; and if an anomaly such as a micro-short circuit is detected, only the detected anomalous secondary battery is electrically separated from the charging system or the discharging system. At least one microcomputer monitors anomalies in n secondary batteries consecutively, selects the anomalous secondary battery or the detected secondary battery which causes an anomaly, and gives an instruction to bypass the secondary battery with each switch.

公开(公告)号：US20210201763A1

公开(公告)日：2021-07-01

申请号：US17056687

申请日：2019-05-27

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Koji KUSUNOKI ,  Kei TAKAHASHI ,  Toshiyuki ISA

IPC: G09G3/32

Abstract: A display device that inhibits display deterioration is provided. The display device estimates the amount of deterioration of a pixel included in the display device and corrects a first image signal supplied to the pixel. The display device includes a display panel including a plurality of pixels, a frame memory, and an arithmetic portion. The pixels each include a light-emitting element and a transistor supplying a current to the light-emitting element. The arithmetic portion has a function of performing an arithmetic operation in accordance with a regression model. A forecast error parameter and an output parameter are set in the arithmetic portion. The arithmetic portion updates the forecast error parameter from a first observation signal supplied from the frame memory and a second observation signal supplied from the pixel, in accordance with the regression model, and updates an output parameter by the forecast error parameter in accordance with the regression model. The arithmetic portion corrects the first image signal by the output parameter and generates a second image signal, and the light-emitting element emits light by the second image signal supplied to the transistor included in the pixel.

公开(公告)号：US20200292624A1

公开(公告)日：2020-09-17

申请号：US16753839

申请日：2018-10-25

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryota TAJIMA ,  Toshiyuki ISA ,  Akihiro CHIDA

IPC: G01R31/387 ,  H02J9/06

Abstract: It is difficult to know the remaining amount and the degradation state of a power storage device, and it is also difficult to estimate how long the power storage device can be used. Data obtained through midway discharge and mid-to-full charge is used as the learning data to calculate the degradation state and the capacity. In other words, the learning data includes both a discharge curve of midway discharge and a charge curve of mid-to-full charge, and neural network processing is performed with the use of the learned data.

公开(公告)号：US20200278398A1

公开(公告)日：2020-09-03

申请号：US16645980

申请日：2018-09-05

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Toshiyuki ISA ,  Koji KUSUNOKI ,  Akihiro CHIDA ,  Kouhei TOYOTAKA ,  Ryota TAJIMA

IPC: G01R31/367 ,  G01R31/3842 ,  G01R31/389 ,  H01M10/0525

Abstract: An anomaly detection system for a secondary battery which detects the remaining capacity of the secondary battery on an electric vehicle, cautions against the secondary battery with anomalous characteristics, stops using the secondary battery, changes the secondary battery, or changes charging conditions of the secondary battery is provided. The anomaly detection system is provided; the system compares a value obtained by estimating internal resistance or SOC of a secondary battery based on the measured value of a current or a voltage of the secondary battery with the use of a nonlinear Kalman filter and a value input to an anomaly detection system (network) of AI to predict a change in the internal resistance; the system regards a case where the difference is large as an anomaly; and the system detects an anomaly.

公开(公告)号：US20200043382A1

公开(公告)日：2020-02-06

申请号：US16340227

申请日：2017-10-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Toshiyuki ISA ,  Akio ENDO ,  Yosuke TSUKAMOTO ,  Jun KOYAMA

IPC: G09F9/30 ,  G06F1/16

Abstract: An electronic device including a large display region and with improved portability is provided. An electronic device with improved reliability is provided.An information processing device includes a first film, a panel substrate, and at least a first housing. The panel substrate has flexibility and a display region, and the first film has a visible-light-transmitting property and flexibility. The first housing includes a first slit, the panel substrate includes a region positioned between the first film and a second film, the first slit has a function of storing the region, and one or both of the panel substrate and the first film can slide along the first slit.

公开(公告)号：US20170315589A1

公开(公告)日：2017-11-02

申请号：US15497743

申请日：2017-04-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Toshiyuki ISA ,  Akio ENDO ,  Yosuke TSUKAMOTO ,  Jun KOYAMA

IPC: G06F1/16 ,  G06F3/044 ,  G06F3/041

CPC classification number: G06F1/1652 ,  G06F1/1616 ,  G06F1/1618 ,  G06F1/1641 ,  G06F1/1675 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/042 ,  G06F3/044 ,  G06F2203/04102 ,  G06F2203/04103 ,  G06F2203/04111 ,  H01L27/323

Abstract: An electronic device with a large display region and improved portability is provided. An electronic device with improved reliability is provided. The information processing device includes a first film, a second film, a panel substrate, and at least a first housing. The panel substrate has flexibility and includes a display region. The first film has visible light transmittance and flexibility, and the second film has flexibility. The first housing includes a first slit, the panel substrate includes a region interposed between the first film and the second film, the first slit is configured to store the region, and one or more of the panel substrate, the first film, and the second film can slide along the first slit.