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公开(公告)号：US20240256037A1
公开(公告)日：2024-08-01
申请号：US18594319
申请日：2024-03-04
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Yoshiyuki KUROKAWA , Hiromichi GODO , Kouhei TOYOTAKA , Kazuki TSUDA , Satoru OHSHITA , Hidefumi RIKIMARU
IPC: G06F3/01 , G02B27/01 , G09G3/00 , G09G3/3225 , H01L27/12 , H01L29/786 , H10K59/121
CPC classification number: G06F3/013 , G02B27/0172 , G09G3/002 , G09G3/3225 , H10K59/1213 , G02B2027/0178 , G09G2354/00 , G09G2360/14 , H01L27/1225 , H01L27/1251 , H01L27/1255 , H01L29/78648 , H01L29/78651 , H01L29/7869
Abstract: To provide a novel electronic device. The electronic device includes a housing and a display device. The display device includes a first layer, a second layer, and a third layer. The first layer, the second layer, and the third layer are provided in different layers. The first layer includes a driver circuit and an arithmetic circuit. The second layer includes pixel circuits and a cell array. The third layer includes light-receiving devices and light-emitting devices. The pixel circuits each have a function of controlling light emission of the light-emitting device. The driver circuit has a function of controlling the pixel circuits. The arithmetic circuit has a function of performing arithmetic processing on the basis of first data corresponding to currents output from the light-receiving devices and second data corresponding to a potential held in the cell array.
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公开(公告)号：US20230260475A1
公开(公告)日：2023-08-17
申请号：US18134054
申请日：2023-04-13
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kouhei TOYOTAKA , Motoharu SAITO
IPC: G09G3/36
CPC classification number: G09G3/3688 , G09G3/3696 , G09G2300/0426 , G09G2310/0286 , G09G2310/0291 , G09G2330/021
Abstract: A display apparatus which includes a driver with low power consumption and in which an output voltage of the driver is boosted by a pixel is provided. The source driver in which a logic unit and an amplifier unit operate appropriately by the same low voltage is included, and the pixel has a function of retaining first data, a function of adding second data to the first data to generate third data, and a function of supplying the third data to a display device. Thus, even when a voltage output from the source driver is low, the voltage can be boosted by the pixel; accordingly, the display device can operate appropriately.
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公开(公告)号：US20220122526A1
公开(公告)日：2022-04-21
申请号：US17562425
申请日：2021-12-27
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kei TAKAHASHI , Koji KUSUNOKI , Kazunori WATANABE , Susumu KAWASHIMA , Kouhei TOYOTAKA , Shunpei YAMAZAKI
IPC: G09G3/32 , H01L25/075 , H01L27/105 , H01L27/12
Abstract: A novel display is provided. A display having a small change in chromaticity of a micro light-emitting diode in proportion to current density is provided. A display capable of reducing power consumption in the driver circuit when displaying a still image is provided. The display includes a plurality of pixels each including a display element and a microcontroller. The microcontroller includes a first transistor, a triangular wave generator circuit, a comparator, a switch, and a constant current circuit. The first transistor has a function of retaining a potential corresponding to data written to the pixel by being switched off. The triangular wave generator circuit has a function of generating a triangular wave signal. The comparator has a function of generating an output signal corresponding to the potential and the triangular wave signal. The switch has a function of controlling whether or not to make a current flowing in the constant current circuit flow to the display element in accordance with the output signal.
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公开(公告)号：US20210376646A1
公开(公告)日：2021-12-02
申请号：US17256667
申请日：2019-06-25
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Kei TAKAHASHI , Koji KUSUNOKI , Kouhei TOYOTAKA , Kazunori WATANABE
IPC: H02J7/00 , G01R31/3835 , G01R31/396
Abstract: A battery management circuit with a novel structure and a power storage device including the battery management circuit are provided. The power storage device includes a plurality of battery cells connected in series and a battery management circuit. The battery management circuit includes a voltage monitor circuit having a function of acquiring a voltage value between a pair of electrodes of any one of the battery cells. The voltage monitor circuit includes a multiplexer and a buffer circuit for outputting a signal for controlling the multiplexer. The multiplexer and the buffer circuit each include an n-channel transistor. The n-channel transistor is a transistor including an oxide semiconductor in a channel formation region. The multiplexer has a function of retaining an output voltage of the battery cell by setting the transistor in an off state.
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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
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.
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Patent Agency Ranking
公开(公告)号：US20210201834A1
公开(公告)日：2021-07-01
申请号：US17191807
申请日：2021-03-04
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei YAMAZAKI , Jun KOYAMA , Hiroyuki MIYAKE , Kouhei TOYOTAKA
Abstract: A liquid crystal display device comprising a backlight and a pixel portion including first to 2n-th scan lines, wherein, in a first case of expressing a color image, first pixels controlled by the first to n-th scan lines are configured to express a first image using at least one of first to third hues supplied in a first rotating order, and second pixels controlled by the (n+1)-th to 2n-th scan lines are configured to express a second image using at least one of the first to third hues supplied in a second rotating order, wherein, in a second case of expressing a monochrome image, the first and second pixels controlled by the first to 2n-th scan lines are configured to express the monochrome image by external light reflected by the reflective pixel electrode, and wherein the first rotating order is different from the second rotating order.
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公开(公告)号：US20210174757A1
公开(公告)日：2021-06-10
申请号：US16771246
申请日：2018-12-11
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kouhei TOYOTAKA , Kei TAKAHASHI , Koji KUSUNOKI , Kazunori WATANABE , Susumu KAWASHIMA
Abstract: A novel display panel that is highly convenient or reliable is provided. A pixel circuit includes a first switch, a node, a capacitor, and a second switch. The first switch includes a first terminal to which a first signal is supplied and a second terminal electrically connected to the node. The capacitor includes a first terminal electrically connected to the node and a second terminal electrically connected to the second switch. The second switch includes a first terminal to which a second signal is supplied and a second terminal electrically connected to the second terminal of the capacitor. In addition, the second switch has a function of changing from a non-conducting state to a conducting state when the first switch is in a non-conducting state and a function of changing from a conducting state to a non-conducting state when the first switch is in a non-conducting state. The display element performs display on the basis of a potential of the node.
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公开(公告)号：US20210110783A1
公开(公告)日：2021-04-15
申请号：US16971137
申请日：2019-02-14
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Susumu KAWASHIMA , Kouhei TOYOTAKA , Koji KUSUNOKI , Kei TAKAHASHI , Kentaro HAYASHI
Abstract: A display device operating at high speed is provided.
The display device includes a pixel provided with a first memory circuit, a second memory circuit, and a display unit, in which the first memory circuit and the second memory circuit are electrically connected to one electrode of the display unit. The operation of the display device includes a first period of writing first image data to the first memory circuit and writing second image data to the second memory circuit, a second period of supplying a first potential to the first memory circuit, a third period of displaying a first image corresponding to the first image data, a fourth period of setting a potential of the one electrode of the display unit to a second potential, a fifth period of supplying the first potential to the second memory circuit, and a sixth period of displaying a second image corresponding to the second image data.-
公开(公告)号：US20210097951A1
公开(公告)日：2021-04-01
申请号：US16970779
申请日：2019-02-13
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kouhei TOYOTAKA , Kazunori WATANABE , Susumu KAWASHIMA
IPC: G09G3/36
Abstract: A display apparatus that operates at high speed is provided. The display apparatus includes a display portion provided with a pixel, and the display portion has a function of displaying a first-color image and a second-color image. A first period in which first image data and first data are written to the pixel, a second period in which the first-color image corresponding to the first image data is displayed on the display portion, a third period in which second image data is generated in the pixel on the basis of the first image data and the first data, and a fourth period in which the second-color image corresponding to the second image data is displayed on the display portion are included.
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公开(公告)号：US20210096409A1
公开(公告)日：2021-04-01
申请号：US16956623
申请日：2018-12-25
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
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.
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