公开(公告)号：US20220416008A1

公开(公告)日：2022-12-29

申请号：US17787654

申请日：2020-12-11

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takeya HIROSE ,  Hideaki SHISHIDO

IPC: H01L27/32

Abstract: A display apparatus with high display quality is provided. A high-resolution display apparatus is provided. The display apparatus includes a plurality of pixels, and the pixels each include a light-emitting device, a first transistor, a second transistor, a third transistor, a fourth transistor, and a first capacitor. One electrode of the light-emitting device is electrically connected to one of a source and a drain of the first transistor, one of a source and a drain of the second transistor, and one electrode of the first capacitor. A gate of the second transistor is electrically connected to the other electrode of the first capacitor, one of a source and a drain of the third transistor, and one of a source and a drain of the fourth transistor. One frame period of each of the pixels includes a period in which the first transistor and the fourth transistor are each in a conduction state.

公开(公告)号：US20210400382A1

公开(公告)日：2021-12-23

申请号：US17282106

申请日：2019-10-02

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeya HIROSE ,  Takayuki IKEDA

IPC: H04R3/00 ,  H04R1/40

Abstract: Provided is a semiconductor device that does not require an A/D converter circuit and is capable of performing sound source separation without converting an analog signal. The semiconductor device includes a plurality of microphones, a plurality of delay circuits, and a signal processing circuit. The plurality of microphones are electrically connected to the respective delay circuits, and output signals of the plurality of delay circuits are input to the signal processing circuit. The delay circuit includes a plurality of signal retention circuits capable of retaining an analog potential, and has functions of retaining an electric signal output from the microphone as a discrete analog signal in the signal retention circuits and outputting the signal at a time different from the time when the microphone outputs the signal. The signal processing circuit has a function of adding the output signals of the plurality of delay circuits.

公开(公告)号：US20250072212A1

公开(公告)日：2025-02-27

申请号：US18723662

申请日：2022-12-15

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daiki NAKAMURA ,  Hisao IKEDA ,  Ryo HATSUMI ,  Takeya HIROSE ,  Yosuke TSUKAMOTO

IPC: H10K59/121 ,  H10K59/35

Abstract: An electronic device with low power consumption is provided. The electronic device includes a first display device and a second display device. The first display device includes a first display portion, and the second display device includes a second display portion. A plurality of first pixels are arranged in the first display portion, and a plurality of second pixels are arranged in the second display portion. The first display device overlaps with the second display device. The second display portion is provided to surround at least part of the first display portion in a plan view. The area occupied by each of the first pixels is smaller than the area occupied by each of the second pixels.

公开(公告)号：US20250024737A1

公开(公告)日：2025-01-16

申请号：US18712749

申请日：2022-12-09

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Ryo HATSUMI ,  Hisao IKEDA ,  Daiki NAKAMURA ,  Takeya HIROSE ,  Yosuke TSUKAMOTO

IPC: H10K59/80 ,  G02B27/01 ,  G09G3/3275 ,  H10K59/65

Abstract: An electronic device with low power consumption is provided. The electronic device includes a first pixel portion and a second pixel portion. A plurality of first pixels are arranged in the first pixel portion. The second pixel portion includes a first region where a plurality of second pixels are arranged and a second region where a plurality of third pixels are arranged. The second region is provided to surround the first region. The first pixel includes a first light-emitting element, the second pixel includes a light-receiving element, and the third pixel includes a second light-emitting element. The area occupied by one of the first pixels is smaller than the area occupied by one of the third pixels.

公开(公告)号：US20240349579A1

公开(公告)日：2024-10-17

申请号：US18685268

申请日：2022-08-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hisao IKEDA ,  Ryo HATSUMI ,  Daiki NAKAMURA ,  Takeya HIROSE

IPC: H10K59/80 ,  G06F3/042 ,  G06V40/13 ,  H10K30/87 ,  H10K39/34

CPC classification number: H10K59/879 ,  G06V40/1318 ,  H10K30/87 ,  H10K39/34 ,  H10K59/8792 ,  G06F3/042 ,  G06F2203/04108

Abstract: A display device having an image capturing function is provided. The display device includes a first pixel and a second pixel. The first pixel includes a light-emitting device. The second pixel includes a light-receiving device and a lens. The light-emitting device and the light-receiving device share an electrode. The lens and the light-receiving device include a region overlapping with each other. The width of the lens is greater than the width of a light-receiving portion of the light-receiving device. The cross-sectional shape of the lens in a thickness direction including an optical axis is a substantial trapezoid. The surface including a leg of the substantially trapezoidal shape has a convex shape. The surface including an upper base of the substantially trapezoidal shape and the light-receiving portion are provided to face each other. The first pixel and the second pixel are provided to be adjacent to each other.

公开(公告)号：US20220286090A1

公开(公告)日：2022-09-08

申请号：US17607943

申请日：2020-04-27

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kiyotaka KIMURA ,  Takeya HIROSE ,  Hidetomo KOBAYASHI ,  Takayuki IKEDA

IPC: H03D7/12 ,  H01L27/108 ,  H01L27/12 ,  H01L29/786

Abstract: A semiconductor device with a novel structure is provided. The semiconductor device includes a mixer circuit including a digital-analog converter circuit, a control circuit for controlling the digital-analog converter circuit, a power source control switch, and a plurality of Gilbert circuits. The plurality of Gilbert circuits each include an analog potential holding circuit for holding an analog potential output from the digital-analog converter circuit. The control circuit has a function of outputting a signal for controlling the analog potential holding circuit and the digital-analog converter circuit. The power source control switch has a function of stopping supply of a power source voltage to the control circuit in a period during which the analog potential held in the analog potential holding circuit is not updated. The analog potential holding circuit includes a first transistor. The first transistor includes a semiconductor layer including an oxide semiconductor in a channel formation region.

公开(公告)号：US20240305909A1

公开(公告)日：2024-09-12

申请号：US18668606

申请日：2024-05-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takeya HIROSE ,  Seiichi YONEDA ,  Hiroki INOUE ,  Takayuki IKEDA ,  Shunpei YAMAZAKI

IPC: H04N25/705 ,  H04N25/77 ,  H04N25/78

CPC classification number: H04N25/705 ,  H04N25/77 ,  H04N25/78

Abstract: An imaging device having a function of processing an image is provided. The imaging device has an additional function such as image processing, can hold analog data obtained by an image capturing operation in a pixel, and can extract data obtained by multiplying the analog data by a predetermined weight coefficient. Difference data between adjacent light-receiving devices can be obtained in a pixel, and data on luminance gradient can be obtained. When the data is taken in a neural network or the like, inference of distance data or the like can be performed. Since enormous volume of image data in the state of analog data can be held in pixels, processing can be performed efficiently.

公开(公告)号：US20230156376A1

公开(公告)日：2023-05-18

申请号：US17995803

申请日：2021-04-09

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Seiichi YONEDA ,  Yusuke NEGORO ,  Takeya HIROSE ,  Shunsuke SATO ,  Shunpei YAMAZAKI

IPC: H04N25/78 ,  H04N25/771 ,  H04N25/79 ,  H10K39/32

CPC classification number: H04N25/78 ,  H04N25/771 ,  H04N25/79 ,  H10K39/32

Abstract: An imaging device that has an image processing function and is capable of a high-speed operation is provided. The imaging device has an additional function such as image processing, and can retain analog data obtained by an image capturing operation in pixels and extract data obtained by multiplying the analog data by a given weight coefficient. In the imaging device, the data is stored in a memory cell and pooling processing of data stored in a plurality of memory cells can be performed. The pixels are provided so as to have a region overlapping with at least one of the memory cells, a pooling processing circuit, and a reading circuit of the pixels; thus, an increase in the area of the imaging device can be inhibited even with an additional function.

公开(公告)号：US20230147770A1

公开(公告)日：2023-05-11

申请号：US17914845

申请日：2021-04-06

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takeya HIROSE ,  Seiichi YONEDA ,  Takayuki IKEDA ,  Shunpei YAMAZAKI

IPC: G11C7/16 ,  G11C27/02 ,  H01L29/786 ,  G11C11/40

CPC classification number: G11C7/16 ,  G11C27/02 ,  H01L29/786 ,  G11C11/40 ,  G11C11/54

Abstract: A semiconductor device capable of holding analog data is provided. Two holding circuits, two bootstrap circuits, and one source follower circuit are formed with use of four transistors and two capacitors. A memory node is provided in each of the two holding circuits; a data potential is written to one of the memory nodes and a reference potential is written to the other of the memory nodes. At the time of data reading, the potential of the one memory node is increased in one of the bootstrap circuits, and the potential of the other memory node is increased in the other of the bootstrap circuits. A potential difference between the two memory nodes is output by the source follower circuit. With use of the source follower circuit, the output impedance can be reduced.

公开(公告)号：US20210297775A1

公开(公告)日：2021-09-23

申请号：US17260686

申请日：2019-08-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takayuki IKEDA ,  Kiyotaka KIMURA ,  Takeya HIROSE

IPC: H04R3/00 ,  H01L27/105 ,  H01L27/12 ,  H01L29/786 ,  H04R1/40

Abstract: A semiconductor device with a novel structure which can identify the sound source is provided. The semiconductor device includes a microphone array, delay circuits, and a signal processing circuit. The delay circuit includes a first selection circuit, which selects a microphone, signal retention circuits, which retain voltages depending on the sound signal, and a second selection circuit, which selects a signal retention circuit. Each signal retention circuit includes a transistor which includes a semiconductor layer including an oxide semiconductor in its channel formation region. The first selection circuit writes the voltage of discreet sound signals to the signal retention circuit. The second selection circuit selects at different timings the voltages which are retained in the signal retention circuit and generates the output signal corresponding to the delayed sound signal.