公开(公告)号：US20150311886A1

公开(公告)日：2015-10-29

申请号：US14735207

申请日：2015-06-10

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hidetomo KOBAYASHI

IPC: H03K3/012 ,  H03K17/54

CPC classification number: H03K3/012 ,  H01L27/1225 ,  H01L29/7869 ,  H03K17/54

Abstract: The circuit includes a first wiring for supplying a power supply potential to a signal processing circuit, a transistor for controlling electrical connection between the first wiring and a second wiring for supplying the a power supply potential, and a transistor for determining whether or not the first wiring is grounded. At least one of the two transistors is a transistor whose channel is formed in the oxide semiconductor layer. This makes it possible to reduce power consumption due to cutoff current of at least one of the two transistors.

Abstract translation: 该电路包括用于向信号处理电路提供电源电位的第一布线，用于控制第一布线和用于提供电源电位的第二布线之间的电连接的晶体管，以及用于确定第一布线 接线接地。 两个晶体管中的至少一个是沟道形成在氧化物半导体层中的晶体管。 这使得可以减少由于两个晶体管中的至少一个的截止电流引起的功耗。

公开(公告)号：US20250037654A1

公开(公告)日：2025-01-30

申请号：US18697595

申请日：2022-09-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Munehiro KOZUMA ,  Tatsuya ONUKI ,  Hidetomo KOBAYASHI ,  Yuki OKAMOTO ,  Shunpei YAMAZAKI

IPC: G09G3/3233 ,  G06F3/01 ,  G06F3/041 ,  G09G3/32

Abstract: A novel electronic device is provided. The electronic device includes a display apparatus, an arithmetic portion, and a gaze detection portion, and the display apparatus includes a functional circuit and a display portion divided into a plurality of sub-display portions. The gaze detection portion has a function of detecting a gaze of a user. The arithmetic portion has a function of distributing each of the plurality of sub-display portions into a first section or a second section on the basis of a detection result by the gaze detection portion. The first section includes a region overlapping with a gaze point. The functional circuit has a function of making the driving frequency of the second section lower than the driving frequency of the first section. The functional circuit also has a function of making a resolution of an image displayed on the sub-display portions included in the second section lower than a resolution of an image displayed on the sub-display portions included in the first section.

公开(公告)号：US20240196653A1

公开(公告)日：2024-06-13

申请号：US18555286

申请日：2022-04-01

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yuki OKAMOTO ,  Susumu KAWASHIMA ,  Tatsuya ONUKI ,  Hidetomo KOBAYASHI ,  Munehiro KOZUMA ,  Takanori MATSUZAKI ,  Shunpei YAMAZAKI

IPC: H10K59/121 ,  G09G3/3233 ,  H05B33/06 ,  H05B33/14 ,  H10K50/19 ,  H10K59/131

CPC classification number: H10K59/1213 ,  G09G3/3233 ,  H05B33/06 ,  H05B33/14 ,  H10K50/19 ,  H10K59/131 ,  G09G2300/0852 ,  G09G2330/021

Abstract: A novel display device is provided. The display device includes a first layer including a driver circuit, a second layer including a plurality of pixel circuits, and a third layer including a plurality of light-emitting elements; the second layer is provided over the first layer; the third layer is provided over the second layer; and a conductive layer is provided between the driver circuit and the plurality of pixel circuits. The driver circuit has a function of controlling operations of the plurality of pixel circuits. One of the plurality of pixel circuits is electrically connected to one of the plurality of light-emitting elements. The pixel circuit has a function of controlling emission luminance of the light-emitting element.

公开(公告)号：US20240063797A1

公开(公告)日：2024-02-22

申请号：US18240389

申请日：2023-08-31

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Masashi FUJITA ,  Yutaka SHIONOIRI ,  Kiyoshi KATO ,  Hidetomo KOBAYASHI

IPC: H03K19/17728 ,  H03K19/173 ,  H03K19/17758 ,  H03K19/17772

CPC classification number: H03K19/17728 ,  H03K19/1737 ,  H03K19/17758 ,  H03K19/17772

Abstract: An object is to provide a semiconductor device that can maintain the connection relation between logic circuit units or the circuit configuration of each of the logic circuit units even after supply of power supply voltage is stopped. Another object is to provide a semiconductor device in which the connection relation between logic circuit units or the circuit configuration of each of the logic circuit units can be changed at high speed. In a reconfigurable circuit, an oxide semiconductor is used for a semiconductor element that stores data on the circuit configuration, connection relation, or the like. Specifically, the oxide semiconductor is used for a channel formation region of the semiconductor element.

公开(公告)号：US20220336570A1

公开(公告)日：2022-10-20

申请号：US17762490

申请日：2020-09-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takashi NAKAGAWA ,  Hidetomo KOBAYASHI ,  Hideaki SHISHIDO

IPC: H01L27/32

Abstract: A display device with high luminance is provided. A pixel includes a light-emitting device, a first transistor, a second transistor, a third transistor, a fourth transistor, a first capacitor, and a second capacitor. One electrode of the light-emitting device is electrically connected to one of a source and a drain of the first transistor. A gate of the first transistor is electrically connected to one electrode of the first capacitor and one of a source and a drain of the second transistor. The other of the source and the drain of the first transistor is electrically connected to one electrode of the second capacitor. One electrode of the second capacitor is electrically connected to a first wiring having a function of supplying a first potential. The other electrode of the second capacitor 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.

公开(公告)号：US20220208939A1

公开(公告)日：2022-06-30

申请号：US17555671

申请日：2021-12-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hidetomo KOBAYASHI ,  Hideaki SHISHIDO ,  Shuichi KATSUI

IPC: H01L27/32 ,  H01L29/786

Abstract: A display device with high resolution is provided. A display device with low power consumption is provided. A display device with high luminance is provided. A display device with a high aperture ratio is provided. The display device includes a first wiring, a second wiring, a third wiring, and a pixel electrode. The first wiring extends in a first direction and is supplied with a source signal. The second wiring extends in a second direction intersecting the first direction and is supplied with a gate signal. The third wiring is supplied with a constant potential. The first wiring and the pixel electrode overlap with each other with the third wiring therebetween.

公开(公告)号：US20220181428A1

公开(公告)日：2022-06-09

申请号：US17603067

申请日：2020-04-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hidetomo KOBAYASHI ,  Hideaki SHISHIDO ,  Takayuki IKEDA ,  Shuichi KATSUI

IPC: H01L27/32

Abstract: A display apparatus with low power consumption and high image quality is provided. The display apparatus includes a light-emitting element, a first transistor, a second transistor, a third transistor, a first capacitor, and a second capacitor. Preferably, one electrode of the light-emitting element is electrically connected to one of a source and a drain of the first transistor; the one electrode of the light-emitting element is electrically connected to one electrode of the first capacitor; a gate of the first transistor is electrically connected to one of a source and a drain of the second transistor; the gate of the first transistor is electrically connected to one electrode of the second capacitor; the other electrode of the second capacitor is electrically connected to the other electrode of the first capacitor; and the other electrode of the second capacitor is electrically connected to one of a source and a drain of the third transistor.

公开(公告)号：US20220137409A1

公开(公告)日：2022-05-05

申请号：US17429979

申请日：2020-02-13

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Takayuki IKEDA ,  Hidetomo KOBAYASHI ,  Hideaki SHISHIDO ,  Kiyotaka KIMURA ,  Takashi NAKAGAWA ,  Kosei NEI ,  Kentaro HAYASHI

IPC: G02B27/01 ,  G06V40/16 ,  G06T7/73

Abstract: An object is to provide an electronic device capable of recognizing a user's facial feature accurately. A glasses-type electronic device includes a first optical component, a second optical component, a frame, an imaging device, a feature extraction unit, and an emotion estimation unit. The frame is in contact with a side surface of the first optical component and a side surface of the second optical component. The imaging device is in contact with the frame and has a function of detecting part of a user's face. The feature extraction unit has a function of extracting a feature of the user's face from the detected part of the user's face. The emotion estimation unit has a function of estimating information on the user from the extracted feature.

公开(公告)号：US20220059045A1

公开(公告)日：2022-02-24

申请号：US17521100

申请日：2021-11-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hidetomo KOBAYASHI ,  Kei TAKAHASHI ,  Shunpei YAMAZAKI

IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/1343 ,  H01L29/786 ,  G06F1/16 ,  G09G3/3233 ,  H01L27/12 ,  G02B27/01 ,  H04M1/02

Abstract: A display device with favorable display quality is provided. A display portion where a plurality of pixels is arranged in a matrix is divided into Region A and Region B, i.e., regions on the upstream side and the downstream side of a scanning direction. A signal line for supplying an image signal is provided in each of Region A and Region B. Region A and Region B adjoin each other such that a boundary line showing the boundary between the regions is bent. Bending the boundary line suppresses formation of a stripe in a boundary portion. For example, in a given column, the total number of pixels electrically connected to a signal line in Region A is made different from the total number of pixels electrically connected to a signal line in Region B.

公开(公告)号：US20210217891A1

公开(公告)日：2021-07-15

申请号：US17054926

申请日：2019-05-23

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hidetomo KOBAYASHI ,  Takayuki IKEDA ,  Takashi NAKAGAWA ,  Takeya HIROSE ,  Shuichi KATSUI

IPC: H01L29/786 ,  H01L29/66 ,  H01L27/108 ,  G11C11/4074 ,  G11C11/4096

Abstract: A semiconductor device in which the accuracy of arithmetic operation is increased by correction of the threshold voltage of a transistor can be provided. The semiconductor device includes first and second current supply circuits, and the second current supply circuit has the same configuration as the first current supply circuit. The first current supply circuit includes first and second transistors, a first capacitor, and first to third nodes. A first terminal of the first transistor is electrically connected to the first node, and a back gate of the first transistor is electrically connected to a first terminal of the second transistor and a first terminal of the first capacitor. A gate of the first transistor is electrically connected to the second node, and a second terminal of the first capacitor is electrically connected to a second terminal of the first transistor. The first node of the first current supply circuit is electrically connected to a second node of each of the first and second current supply circuits. The threshold voltage of the first transistor is corrected by writing a correction voltage to the back gate of the first transistor.