公开(公告)号：US20240118344A1

公开(公告)日：2024-04-11

申请号：US18377458

申请日：2023-10-06

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kei TAKAHASHI ,  Kouhei TOYOTAKA

IPC: G01R31/3842 ,  G01R19/165 ,  G01R31/367 ,  H01M10/0525 ,  H01M10/48

CPC classification number: G01R31/3842 ,  G01R19/16576 ,  G01R31/367 ,  H01M10/0525 ,  H01M10/48

Abstract: A secondary battery control system that conducts abnormality detection while predicting other parameters (internal resistance, SOC, and the like) with high accuracy is provided. A difference between an observation value (voltage) at a certain point in time and a voltage that is estimated using a prior-state variable is sensed. A threshold voltage is set in advance, and from the voltage difference that is sensed, a sudden abnormality, specifically a micro-short circuit or the like is detected. Furthermore, it is preferable that detection be performed by using a neural network to learn data on voltage difference in a time series and determine abnormality or normality.

公开(公告)号：US20240006419A1

公开(公告)日：2024-01-04

申请号：US18229226

申请日：2023-08-02

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Kei TAKAHASHI ,  Yoshiyuki KUROKAWA

IPC: H01L27/12 ,  G02F1/1362 ,  G02F1/1368 ,  H01L29/24 ,  H01L29/786

CPC classification number: H01L27/124 ,  G02F1/136286 ,  G02F1/1368 ,  H01L27/1222 ,  H01L27/1225 ,  H01L27/1259 ,  G09G3/3648 ,  H01L29/78666 ,  H01L29/78675 ,  H01L29/7869 ,  G02F2202/10 ,  G02F2202/103 ,  G02F2202/104 ,  H01L29/24

Abstract: A display device that is suitable for increasing its size is provided. The display device includes first to third wirings, a first transistor, first to third conductive layers, and a first pixel electrode; the first wiring extends in a first direction and intersects with the second and the third wirings; the second and the third wirings each extend in a second direction intersecting with the first direction; a gate of the first transistor is electrically connected to the first wiring; one of a source and a drain of the first transistor is electrically connected to the second wiring through the first to the third conductive layers; the second conductive layer includes a region overlapping with the third wiring; the first conductive layer, the third conductive layer, and the first pixel electrode contain the same material; the first wiring and the second conductive layer contain the same material; the first wiring is supplied with a selection signal; and the second and the third wirings are supplied with different signals.

公开(公告)号：US20230350256A1

公开(公告)日：2023-11-02

申请号：US18202557

申请日：2023-05-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kouhei TOYOTAKA ,  Kazunori WATANABE ,  Susumu KAWASHIMA ,  Kei TAKAHASHI ,  Koji KUSUNOKI ,  Masataka NAKADA ,  Ami SATO

IPC: G02F1/1368 ,  G02F1/1362

CPC classification number: G02F1/1368 ,  G02F1/136227

Abstract: A liquid crystal display device with a high aperture ratio is provided. The display device includes a transistor, a first insulating layer, a second insulating layer, a third insulating layer, a first conductive layer, a pixel electrode, a common electrode, and a liquid crystal layer in a pixel. The first insulating layer is positioned over a channel formation region of the transistor. The first conductive layer is positioned over the first insulating layer. The second insulating layer is positioned over the transistor, the first insulating layer, and the first conductive layer. The pixel electrode is positioned over the second insulating layer, the third insulating layer is positioned over the pixel electrode, the common electrode is positioned over the third insulating layer, and the liquid crystal layer is positioned over the common electrode. The common electrode includes a region overlapping with the first conductive layer with the pixel electrode positioned therebetween. The pixel includes a first connection portion where the pixel electrode is electrically connected to the transistor and a second connection portion where the first conductive layer is electrically connected to the common electrode. The first conductive layer, the pixel electrode, and the common electrode each have a function of transmitting visible light.

公开(公告)号：US20230298504A1

公开(公告)日：2023-09-21

申请号：US18201823

申请日：2023-05-25

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Susumu KAWASHIMA ,  Koji KUSUNOKI ,  Kei TAKAHASHI ,  Shunpei YAMAZAKI

IPC: G09G3/20 ,  H01L27/12 ,  H01L29/786 ,  G09G3/3233

CPC classification number: G09G3/2007 ,  G09G3/20 ,  H01L27/1225 ,  H01L27/1255 ,  H01L29/7869 ,  G09G3/2074 ,  G09G3/3233 ,  G09G2300/0852 ,  H01L27/124 ,  G09G2300/0417 ,  G09G2300/0861 ,  G09G2340/0428 ,  G09G2320/0295 ,  H01L29/78648 ,  H01L27/1207 ,  H04N23/50

Abstract: To provide a display device capable of displaying a plurality of images by superimposition using a plurality of memory circuits provided in a pixel. A plurality of memory circuits are provided in a pixel, and signals corresponding to images for superimposition are retained in each of the plurality of memory circuits. In the pixel, the signals corresponding to the images for superimposition are added to each of the plurality of memory circuits. The signals are added to the signals retained in the memory circuits by capacitive coupling. A display element can display an image corresponding to a signal in which a signal written to a pixel through a wiring is added to the signals retained in the plurality of memory circuits. Reduction in the amount of arithmetic processing for displaying images by superimposition can be achieved.

公开(公告)号：US20230100524A1

公开(公告)日：2023-03-30

申请号：US17795619

申请日：2021-02-08

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takayuki IKEDA ,  Kei TAKAHASHI ,  Shuji FUKAI ,  Shunpei YAMAZAKI

IPC: H01M10/42 ,  H10B12/00 ,  H01L27/12 ,  H01L29/786 ,  H01M50/574 ,  H01M10/44 ,  H01M10/48

Abstract: A battery management circuit, a battery protection circuit, a power storage device, a semiconductor device, a vehicle, and an electronic device, or the like with a novel structure, a low power consumption structure, or a highly integrated structure is provided. The semiconductor device includes a first transistor comprising a first conductor and a first semiconductor over the first conductor, a first insulator over the first transistor, a second conductor provided in an opening of the first insulator, a second transistor over the first insulator, and a third conductor over the second transistor. The first conductor has a function of one of a source electrode and a drain electrode of the first transistor. The first semiconductor and the second conductor overlap each other. The second conductor and the third conductor overlap each other. The third conductor and the second transistor overlap each other. The first semiconductor and the second transistor are electrically connected to each other through the second conductor and the third conductor.

公开(公告)号：US20220394202A1

公开(公告)日：2022-12-08

申请号：US17441733

申请日：2021-02-17

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kei TAKAHASHI ,  Kouhei TOYOTAKA ,  Hidetomo KOBAYASHI

IPC: H04N5/378 ,  H01L27/28 ,  H04N5/3745

Abstract: The reading accuracy of an imaging device is increased. Clear image capturing is performed even in the case where the luminance is high. A reading circuit of the imaging device includes an amplifier portion and a conversion portion. The amplifier portion amplifies a potential difference between a first signal and a second signal that are sequentially input and outputs the amplified difference to the conversion portion. The conversion portion converts the output potential of the amplifier portion into a digital value. The amplifier portion is reset on the basis of a first reference potential and the first signal and amplifies the potential difference on the basis of a second reference potential that is different from the first reference potential and the second signal.

公开(公告)号：US20220350432A1

公开(公告)日：2022-11-03

申请号：US17760603

申请日：2020-09-22

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kei TAKAHASHI ,  Hidetomo KOBAYASHI ,  Hajime KIMURA ,  Takeshi OSADA ,  Hideaki SHISHIDO ,  Kiyotaka KIMURA ,  Shuichi KATSUI ,  Takeya HIROSE ,  Takayuki IKEDA

IPC: G06F3/041 ,  H01L51/52 ,  H01L27/12 ,  H01L51/44 ,  G09G3/3266 ,  G06F3/042 ,  G09G3/3275 ,  G09G3/3233

Abstract: To provide an inexpensive display device. The display device includes a pixel and an IC chip. The pixel includes a first pixel circuit including a display element and a second pixel circuit including a light-receiving device. The one IC chip includes a control circuit, a data driver circuit, and a read circuit. The first and second pixel circuits are electrically connected to the read circuit. The control circuit has a function of controlling driving of the data driver circuit and the read circuit. The data driver circuit has a function of supplying image data to the first pixel circuit. The read circuit has a function of outputting a monitor signal corresponding to a monitor current when the monitor current flows through the first pixel circuit. The read circuit also has a function of outputting an imaging signal corresponding to imaging data acquired by the second pixel circuit.

公开(公告)号：US20220329233A1

公开(公告)日：2022-10-13

申请号：US17836283

申请日：2022-06-09

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yuki OKAMOTO ,  Kei TAKAHASHI

IPC: H03K3/0233 ,  H01M10/48 ,  H02J7/02 ,  H03K17/22 ,  H03K19/0185 ,  G06G7/186 ,  H03K5/08 ,  H03K19/20

Abstract: To provide a hysteresis comparator having a small circuit area and low power consumption. The hysteresis comparator includes a comparator, a switch, a first capacitor, a second capacitor, and a logic circuit. A first terminal of the switch is electrically connected to one of a pair of conductive regions of the first capacitor, one of a pair of conductive regions of the second capacitor, and a first input terminal of the comparator. An output terminal of the comparator is electrically connected to an input terminal of the logic circuit. An output terminal of the logic circuit is electrically connected to the other of the pair of conductive regions of the second capacitor. The logic circuit has a function of generating an inverted signal of a signal input to the input terminal of the logic circuit and outputting the inverted signal to the output terminal of the logic circuit. A reference potential is input to the first input terminal of the comparator and the reference potential is held by the switch. Due to change in the potential of the output terminal of the comparator, the reference potential is changed by capacitive coupling of the second capacitor.

公开(公告)号：US20220208245A1

公开(公告)日：2022-06-30

申请号：US17604523

申请日：2020-04-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Munehiro KOZUMA ,  Takayuki IKEDA ,  Kei TAKAHASHI ,  Takeshi AOKI

IPC: G11C11/4074 ,  H01L27/108 ,  H01L27/12 ,  H01L29/786 ,  G11C11/405 ,  G11C11/4096 ,  G06F3/06

Abstract: A semiconductor device with reduced power consumption is provided. The semiconductor device includes a transmitter unit, a receiver unit, a bias-outputting unit, and a controller unit. The bias-outputting unit has a plurality of memory units. The plurality of memory units each retains information to determine transmission power. The receiver unit receives a request signal transmitted from a base station and supplies it to the controller unit. The controller unit selects one of the plurality of memory units according to the request signal. The memory unit has an OS transistor and retains information when power supply is stopped.

公开(公告)号：US20210373839A1

公开(公告)日：2021-12-02

申请号：US17401423

申请日：2021-08-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kensuke YOSHIZUMI ,  Yuichi YANAGISAWA ,  Kei TAKAHASHI

IPC: G06F3/14 ,  H01L51/00 ,  G06F3/147 ,  H01L27/146

Abstract: Provided is a display device or a display system capable of displaying images along a curved surface, a display device or a display system capable of displaying images seamlessly in the form of a ring, or a display device or a display system that is suitable for increasing in size. The display device includes a display panel. The display panel includes a first part and a second part and is flexible. The first part can display images. The second part can transmit visible light. The display panel is curved so that the second part and the first part overlap with each other.