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：US20230138701A1

公开(公告)日：2023-05-04

申请号：US17911147

申请日：2021-03-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kouhei TOYOTAKA ,  Kiyotaka KIMURA ,  Hidetomo KOBAYASHI ,  Kei TAKAHASHI

IPC: G09G3/3275

Abstract: A low-power display device is provided. The display device is provided with a plurality of display portions. A data driver circuit and an addition circuit are provided to have a region overlapping with the display portion. First analog data is output from the data driver circuit in the case where first digital data consisting of a first digital value is input to the data driver circuit, whereas second analog data is output from the data driver circuit in the case where second digital data consisting of a second digital value is input to the data driver circuit. The addition circuit generates analog data corresponding to digital data that has a high-order bit that is the first digital value and a low-order bit that is the second digital value, by adding the second analog data to the first analog data. An output terminal of the data driver circuit is directly connected to an input terminal of the addition circuit without through an amplifier circuit.

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：US20220352265A1

公开(公告)日：2022-11-03

申请号：US17439880

申请日：2020-09-23

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kei TAKAHASHI ,  Hidetomo KOBAYASHI

IPC: H01L27/32 ,  H01L51/00 ,  G06F1/16

Abstract: Common noise is reduced from light-receiving data. A display module includes a display apparatus and a reading circuit. Each of a first pixel and a second pixel adjacent to each other in the display apparatus includes a light-receiving element and a light-emitting element. The reading circuit includes a differential input circuit. Common noise generated when display data is supplied to a light-emitting element, for example, may affect a first light-receiving signal output by the first pixel and a second light-receiving signal output by the second pixel. A first current is generated using the first light-receiving signal and a ramp signal, and a second current is generated using the second light-receiving signal and a first potential. The differential input circuit is controlled so that the first current and the second current have the same current value, whereby common noise can be removed from the first light-receiving signal.

公开(公告)号：US20220278187A1

公开(公告)日：2022-09-01

申请号：US17628381

申请日：2020-07-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hidetomo KOBAYASHI ,  Takayuki IKEDA ,  Shunpei YAMAZAKI

IPC: H01L27/32

Abstract: A display device with high design flexibility that can be designed easily is provided. One embodiment of the present invention includes a first substrate (101) provided with a driver circuit including first and second pulse output circuits (91_1, 91_2), a second substrate (103) provided with a display unit (92) including a first pixel circuit including a first source wiring (SL_1) and a first contact portion (SC_1) and a second pixel circuit including a second source wiring (SL_2) adjacent to the first source wiring and a second contact portion (SC_2) electrically connected to the second source wiring, and a connection unit where the first and second substrates are electrically connected to each other. The display unit is placed to overlap with the driver circuit, the first and second pulse output circuits are electrically connected to the first and second pixel circuits respectively through the first and second contact portions, the first pulse output circuit is placed on an opposite side of a straight line connecting the first and second contact portions from the second pulse output circuit, and the connection unit includes a wiring containing copper.

公开(公告)号：US20220216254A1

公开(公告)日：2022-07-07

申请号：US17705479

申请日：2022-03-28

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hidetomo KOBAYASHI ,  Yuki TAMATSUKURI ,  Naoto KUSUMOTO

IPC: H01L27/146

Abstract: An imaging device capable of executing image processing is provided. A structure is employed in which a photoelectric conversion element, a first transistor, a second transistor, and an inverter circuit are included; one electrode of the photoelectric conversion element is electrically connected to one of a source and a drain of the first transistor; the other of the source and the drain of the first transistor is electrically connected to one of a source and a drain of the second transistor; the one of the source and the drain of the second transistor is electrically connected to an input terminal of the inverter circuit; and data obtained by photoelectric conversion is binarized and output.

公开(公告)号：US20220189398A1

公开(公告)日：2022-06-16

申请号：US17440811

申请日：2020-04-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kiyotaka KIMURA ,  Hidetomo KOBAYASHI ,  Takayuki IKEDA

IPC: G09G3/3233 ,  H01L27/12

Abstract: A semiconductor device with low power consumption is provided. A semiconductor device that operates at high speed is provided. A semiconductor device with a small circuit area is provided. A novel semiconductor device is provided. In the semiconductor device, a signal line is electrically connected to a plurality of pixels between a first node and a second node; an amplifier circuit has a function of amplifying a supplied current and supplying the amplified current to the first node; an analog-to-digital converter circuit has a function of converting a potential of the first node into a first signal, and a function of converting a potential of the second node into a second signal; a sensing circuit has a function of comparing the first signal and the second signal and generating a third signal; and the current amplification factor of the amplifier circuit is determined in accordance with the third signal.

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：US20210134860A9

公开(公告)日：2021-05-06

申请号：US16615156

申请日：2018-05-16

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takayuki IKEDA ,  Yoshiyuki KUROKAWA ,  Shintaro HARADA ,  Hidetomo KOBAYASHI ,  Roh YAMAMOTO ,  Kiyotaka KIMURA ,  Takashi NAKAGAWA ,  Yusuke NEGORO

IPC: H01L27/146 ,  H04N5/341 ,  H04N5/374 ,  H01L29/786 ,  H04N5/3745 ,  H01L27/12

Abstract: An imaging device capable of image processing is provided.
The imaging device can retain analog data (image data) obtained by an image-capturing operation in a pixel and perform a product-sum operation of the analog data and a predetermined weight coefficient in the pixel to convert the data into binary data. When the binary data is taken in a neural network or the like, processing such as image recognition can be performed. Since enormous volumes of image data can be retained in pixels in the state of analog data, processing can be performed efficiently.

公开(公告)号：US20180226041A1

公开(公告)日：2018-08-09

申请号：US15888630

申请日：2018-02-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Susumu KAWASHIMA ,  Hidetomo KOBAYASHI

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G2310/0213 ,  G09G2310/04 ,  G09G2320/0219 ,  G09G2320/0295

Abstract: Display quality is improved. A display device includes a display controller and a display panel provided with m×n pixels. The display controller includes the step of comparing first display data, which is displayed in a first pixel connected to the i-th signal line and the (j−1)-th scan line, with second display data, which is displayed in a second pixel connected to the i-th signal line and the j-th scan line, and calculating an absolute value of a difference value, the step of extracting a maximum value from a result of the absolute value, and the step of determining a first selection period of the j-th scan line in accordance with the maximum value.