公开(公告)号：US20240154060A1

公开(公告)日：2024-05-09

申请号：US18417474

申请日：2024-01-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryo ARASAWA ,  Hideaki SHISHIDO

IPC: H01L33/16 ,  H01L27/12

CPC classification number: H01L33/16 ,  H01L27/1225 ,  H01L27/124

Abstract: An object is to provide a light-emitting display device in which a pixel including a thin film transistor using an oxide semiconductor has a high aperture ratio. The light-emitting display device includes a plurality of pixels each including a thin film transistor and a light-emitting element. The pixel is electrically connected to a first wiring functioning as a scan line. The thin film transistor includes an oxide semiconductor layer over the first wiring with a gate insulating film therebetween. The oxide semiconductor layer is extended beyond the edge of a region where the first wiring is provided. The light-emitting element and the oxide semiconductor layer overlap with each other.

公开(公告)号：US20230397444A1

公开(公告)日：2023-12-07

申请号：US18024286

申请日：2021-09-09

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yusuke NEGORO ,  Hideaki SHISHIDO

IPC: H10B80/00 ,  H01L27/146 ,  H10K39/00 ,  H04N25/771 ,  H04N25/79

CPC classification number: H10B80/00 ,  H01L27/14645 ,  H01L27/14605 ,  H10K39/601 ,  H04N25/771 ,  H04N25/79 ,  H01L24/08

Abstract: An imaging device that has an image processing function and is capable of operating at high speed is provided. The imaging device has an additional function such as image processing, image data obtained by an imaging operation is binarized in a pixel portion, and a product-sum operation is performed using the binarized data. A memory circuit is provided in the pixel portion and retains a weight coefficient used for the product-sum operation. Thus, an arithmetic operation can be performed without the weight coefficient read from the outside every time, so that power consumption can be reduced. Furthermore, a pixel circuit, a memory circuit, and the like and a product-sum operation circuit and the like are formed to be stacked; therefore, the length of a wiring between the circuits can be shortened, and a low-power consumption operation and a high-speed operation can be performed.

公开(公告)号：US20230386383A1

公开(公告)日：2023-11-30

申请号：US18296690

申请日：2023-04-06

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takashi NAKAGAWA ,  Takayuki IKEDA ,  Hidetomo KOBAYASHI ,  Hideaki SHISHIDO ,  Shuichi KATSUI ,  Kiyotaka KIMURA

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2300/0814 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2310/08 ,  H01L27/1225

Abstract: A display device with a narrower frame can be provided. In the display device, a first layer, a second layer, and a third layer are provided to be stacked. The first layer includes a gate driver circuit and a data driver circuit, the second layer includes a demultiplexer circuit, and the third layer includes a display portion. In the display portion, pixels are arranged in a matrix, an input terminal of the demultiplexer circuit is electrically connected to the data driver circuit, and an output terminal of the demultiplexer circuit is electrically connected to some of the pixels. The gate driver circuit and the data driver circuit are provided to include a region overlapping some of the pixels. The gate driver circuit and the data driver circuit have a region where they are not strictly separated from each other and overlap each other. Five or more gate driver circuits and five or more data driver circuits can be provided.

公开(公告)号：US20230022181A1

公开(公告)日：2023-01-26

申请号：US17887708

申请日：2022-08-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takayuki IKEDA ,  Hidetomo KOBAYASHI ,  Hideaki SHISHIDO ,  Kiyotaka KIMURA ,  Takashi NAKAGAWA ,  Kosei NEI

IPC: G09G3/3275 ,  G09G3/3233 ,  G09G3/3266 ,  G09G5/377 ,  H01L27/32 ,  H01L29/786

Abstract: A high-definition display device is provided. A small display device is provided. In the display device, a first layer and a second layer are stacked and provided. The first layer includes a gate driver circuit and a source driver circuit, and the second layer includes a display portion. The gate driver circuit and the source driver circuit are provided to include a region overlapping with the display portion. The gate driver circuit and the source driver circuit have an overlap region where they are not strictly separated from each other. Five or more gate driver circuits and five or more source driver circuits can be provided.

公开(公告)号：US20210295780A1

公开(公告)日：2021-09-23

申请号：US17055285

申请日：2019-05-09

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takayuki IKEDA ,  Hidetomo KOBAYASHI ,  Hideaki SHISHIDO ,  Kiyotaka KIMURA ,  Takashi NAKAGAWA ,  Kosei NEI

IPC: G09G3/3275 ,  H01L27/32 ,  H01L29/786 ,  G09G3/3266 ,  G09G5/377 ,  G09G3/3233

Abstract: A high-definition display device is provided. A small display device is provided. In the display device, a first layer and a second layer are stacked and provided. The first layer includes a gate driver circuit and a source driver circuit, and the second layer includes a display portion. The gate driver circuit and the source driver circuit are provided to include a region overlapping with the display portion. The gate driver circuit and the source driver circuit have an overlap region where they are not strictly separated from each other. Five or more gate driver circuits and five or more source driver circuits can be provided.

公开(公告)号：US20200076223A1

公开(公告)日：2020-03-05

申请号：US16610931

申请日：2018-05-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutaka KURIKI ,  Ryota TAJIMA ,  Hideaki SHISHIDO ,  Yusuke YOSHITANI ,  Haruki KATAGIRI ,  Yohei MOMMA

IPC: H02J7/04 ,  H02J7/02 ,  H02J7/00 ,  H02J50/20 ,  H02J50/80 ,  B60L53/12 ,  B60L50/60 ,  B60L53/62 ,  G05B13/02 ,  H01M10/46 ,  H01M10/44

Abstract: A charging control device using machine learning is provided. A high-security charging control device is provided. A charging control system with little deterioration is provided. A storage battery having excellent characteristics is provided.An approximate charging end time is calculated. A result obtained when it is different from the estimated charging end time is fed back and learned, and accordingly the charging end can be precisely estimated after the next time. That is, the portable information terminal makes a charging plan with the use of artificial intelligence and the secondary battery is charged based on information about the charging plan. The charging plan is made to reduce the retention time of the full charging (SOC 100%) and charging is executed. Charging history information is stored in the portable information terminal and made use of to make the next charging plan.

公开(公告)号：US20180149920A1

公开(公告)日：2018-05-31

申请号：US15825417

申请日：2017-11-29

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Hideaki SHISHIDO ,  Koji KUSUNOKI

IPC: G02F1/1335 ,  G02F1/1362 ,  G02F1/1343 ,  G06F3/041 ,  G02F1/1333

CPC classification number: G02F1/133602 ,  G02F1/133305 ,  G02F1/13338 ,  G02F1/133382 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/136209 ,  G02F1/136213 ,  G02F1/136286 ,  G02F2201/40 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04107 ,  G06F2203/04111 ,  G06F2203/04112

Abstract: A liquid crystal display device with a high aperture ratio is provided. A liquid crystal display device with low power consumption is provided. A display device includes a liquid crystal element, a transistor, a scan line, and a signal line. The liquid crystal element includes a pixel electrode, a liquid crystal layer, and a common electrode. The scan line and the signal line are each electrically connected to the transistor. The scan line and the signal line each include a metal layer. The transistor includes a metal oxide layer, a gate, and a gate insulating layer. The metal oxide layer includes a first region and a second region. The first region overlaps with the gate with the gate insulating layer therebetween. The second region includes a first part connected to the pixel electrode. The resistivity of the second region is lower than that of the first region. The pixel electrode, the common electrode, and the first part are configured to transmit visible light. The visible light passes through the first part and the liquid crystal element and is emitted to the outside of the display device.

公开(公告)号：US20180145096A1

公开(公告)日：2018-05-24

申请号：US15818869

申请日：2017-11-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Hideaki SHISHIDO

IPC: H01L27/12 ,  G02F1/1368 ,  G02F1/1333 ,  G02F1/1362

CPC classification number: H01L27/1255 ,  G02F1/133345 ,  G02F1/136213 ,  G02F1/1368 ,  G02F2201/121 ,  G02F2201/40 ,  H01L27/1225 ,  H01L27/124

Abstract: A liquid crystal display device with high aperture ratio is provided. The liquid crystal display device includes a first conductive layer, a second conductive layer, and a liquid crystal element where a liquid crystal layer is positioned between a third conductive layer and a fourth conductive layer. The first to fourth conductive layers transmit visible light and include a region where the first to fourth conductive layers overlap with each other. The second conductive layer is positioned between the first conductive layer and the third conductive layer. An insulating layer is positioned between the first conductive layer and the second conductive layer. An insulating layer is positioned between the second conductive layer and the third conductive layer. Therefore, two capacitors each including the second conductive layer as an electrode are stacked. The two capacitors transmit light and overlap with the liquid crystal element; thus, aperture ratio can be increased.

公开(公告)号：US20170309239A1

公开(公告)日：2017-10-26

申请号：US15646452

申请日：2017-07-11

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroyuki MIYAKE ,  Hideaki SHISHIDO ,  Ryo ARASAWA

IPC: G09G3/36 ,  H01L27/12 ,  H01L29/02 ,  G06F3/038

CPC classification number: G09G3/3648 ,  G06F1/3265 ,  G06F3/038 ,  G09G3/3614 ,  H01L27/1225 ,  H01L29/02 ,  Y02D10/153

Abstract: An object is to provide a driving method of a liquid crystal display device with a low power consumption and a high image quality. A pixel includes a liquid crystal element and a transistor which controls supply of an image signal to the liquid crystal element. The transistor includes, in a channel formation region, a semiconductor which has a wider band gap than a silicon semiconductor and has a lower intrinsic carrier density than silicon, and has an extremely low off-state current. In inversion driving of pixels, image signals having opposite polarities are input to a pair of signal lines between which a pixel electrode is disposed. By employing such a structure, the quality of the displayed image can be increased even in the absence of a capacitor in the pixel.

公开(公告)号：US20170186777A1

公开(公告)日：2017-06-29

申请号：US15375453

申请日：2016-12-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kouhei TOYOTAKA ,  Kei TAKAHASHI ,  Hideaki SHISHIDO ,  Koji KUSUNOKI

IPC: H01L27/12 ,  H01L29/786 ,  H01L29/49 ,  H01L29/04

CPC classification number: H01L27/1225 ,  H01L27/124 ,  H01L27/1266 ,  H01L27/3262 ,  H01L29/045 ,  H01L29/4908 ,  H01L29/78648 ,  H01L29/7869

Abstract: A novel display device or the like in which a transistor connected to a scan line has small gate capacitance is provided. A novel display device or the like in which a scan line has low resistance is provided. A novel display device or the like in which pixels can be arranged with high density is provided. A novel display device or the like that can be manufactured without an increase in cost is provided. In a transistor including a first gate electrode and a second gate electrode, the first gate electrode is formed using a metal material with low resistance and the second gate electrode is formed using a metal oxide material that can reduce oxygen vacancies in an oxide semiconductor layer. The first gate electrode is connected to the scan line, and the second gate electrode is connected to a wiring to which a constant potential is supplied.