公开(公告)号：US20240331641A1

公开(公告)日：2024-10-03

申请号：US18293869

申请日：2022-07-28

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Munehiro KOZUMA ,  Tatsuya ONUKI ,  Hidetomo KOBAYASHI

IPC: G09G3/3266 ,  G06F3/042 ,  G06V40/13 ,  G09G3/3233

CPC classification number: G09G3/3266 ,  G06F3/042 ,  G06V40/1318 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2354/00 ,  G09G2360/14

Abstract: To provide a display apparatus with a novel structure. A display portion including a first subpixel, a second subpixel, a first gate line supplied with a first selection signal to scan the first subpixel, and a second gate line supplied with a second selection signal to scan the second subpixel; and a driver control circuit including a gate line driver circuit, a switching portion that allots the first selection signal or the second selection signal output from the gate line driver circuit to the first gate line or the second gate line to be output, and a timing control circuit that controls the switching portion are included. The timing control circuit allows the gate line driver circuit to output the first selection signal of a first frame frequency and the second selection signal having a selection period longer than the first selection signal in a first operation mode, and to output the first selection signal and the second selection signal with a second frame frequency lower than the first frame frequency in a second operation mode.

公开(公告)号：US20240321205A1

公开(公告)日：2024-09-26

申请号：US18569779

申请日：2022-06-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yuki OKAMOTO ,  Tatsuya ONUKI ,  Hidetomo KOBAYASHI ,  Munehiro KOZUMA ,  Takanori MATSUZAKI ,  Susumu KAWASHIMA ,  Yutaka OKAZAKI

IPC: G09G3/3233 ,  H01L27/088 ,  H01L27/12

CPC classification number: G09G3/3233 ,  H01L27/088 ,  H01L27/1225 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2330/021

Abstract: The invention of the application is the invention regarding a semiconductor device and a method for driving the semiconductor device. The semiconductor device includes first and second transistors, first to fifth switches, first to third capacitors, and a display element. The first transistor (M2) comprises a back gate, a gate of the first transistor is electrically connected to the first switch (M1), the second switch (M3) and the first capacitor (C1) are positioned between the gate of the first transistor and a source of the first transistor, the back gate of the first transistor is electrically connected to the third switch (M4), the second capacitor (C2) is positioned between the back gate of the first transistor and the source of the first transistor, the source of the first transistor is electrically connected to the fourth switch (M6) and a drain of the second transistor (M5), a gate of the second transistor is electrically connected to the fifth switch (M7), the third capacitor (C3) is positioned between the gate of the second transistor and a source of the second transistor, and the source of the second transistor is electrically connected to the display element (61).

公开(公告)号：US20240215359A1

公开(公告)日：2024-06-27

申请号：US18554148

申请日：2022-03-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hajime KIMURA ,  Shuichi KATSUI ,  Hidetomo KOBAYASHI

IPC: H10K59/131 ,  H10K59/12 ,  H10K59/121 ,  H10K59/35 ,  H10K71/00

CPC classification number: H10K59/131 ,  H10K59/1201 ,  H10K59/1213 ,  H10K59/352 ,  H10K59/353 ,  H10K71/00

Abstract: A display device with high display quality is provided. A highly reliable display device is provided. A display device with low power consumption is provided. A display device that can easily achieve higher definition is provided. A display device with both high display quality and high definition is provided. A display device with high contrast is provided. The display device includes a first wiring to a fourth wiring and a display portion including a first pixel to a third pixel. The second pixel is positioned between the first pixel and the third pixel in a plan view. Each pixel includes a first subpixel and a second subpixel. The first wiring has a function of applying a first potential to the second subpixel included in the first pixel. The second wiring has a function of applying the first potential to the first subpixel included in the second pixel. The third wiring has a function of applying the first potential to the second subpixel included in the second pixel. The fourth wiring has a function of applying the first potential to the first subpixel included in the third pixel. The first wiring and the second wiring are adjacent to each other. The third wiring and the fourth wiring are adjacent to each other. A distance between the first wiring and the second wiring is shorter than a distance between the third wiring and the fourth wiring.

公开(公告)号：US20230260473A1

公开(公告)日：2023-08-17

申请号：US18135818

申请日：2023-04-18

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

CPC classification number: G09G3/3648 ,  G02F1/136286 ,  G02F1/1343 ,  H01L29/78648 ,  G06F1/1652 ,  G09G3/3233 ,  H01L27/1225 ,  G02B27/01 ,  H01L27/124 ,  H04M1/0268 ,  G09G2310/0264 ,  G09G2300/0426 ,  G02F1/133602

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：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：US20220264046A1

公开(公告)日：2022-08-18

申请号：US17628293

申请日：2020-07-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroki INOUE ,  Seiichi YONEDA ,  Yusuke NEGORO ,  Takahiko ISHIZU ,  Hidetomo KOBAYASHI

IPC: H04N5/3745 ,  H04N5/351

Abstract: An imaging device having a motion detecting function and an image processing function is provided. The imaging device can detect a difference between a reference frame image and a comparative frame image, and can switch from a motion detecting mode to a normal image capturing mode when a significant difference is detected. A low-frame-rate operation in the motion detecting mode can reduce power consumption. Moreover, the imaging device has an image recognition function in combination with the motion detecting function, so that switching from the motion detecting mode to the normal image capturing mode can be performed when a particular image is recognized.

公开(公告)号：US20210383762A1

公开(公告)日：2021-12-09

申请号：US17411205

申请日：2021-08-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hidetomo KOBAYASHI ,  Kouhei TOYOTAKA

IPC: G09G3/3266 ,  G09G3/3233 ,  G09G3/34 ,  G09G3/36

Abstract: A display device that can be easily and more flexibly designed is provided. The display device includes a pixel circuit and a driver circuit in a display portion. The driver circuit includes a plurality of pulse output circuits. Each of the plurality of pulse output circuits has a function of driving a gate line. The pixel circuit is electrically connected to the gate line. Each of the plurality of pulse output circuits includes a first transistor. The pixel circuit includes a second transistor. A layer including the second transistor is over a layer including the first transistor, and the first transistor and the second transistor overlap with each other.

公开(公告)号：US20210374378A1

公开(公告)日：2021-12-02

申请号：US17282119

申请日：2019-10-01

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hidetomo KOBAYASHI ,  Takayuki IKEDA

IPC: G06K9/00 ,  H01L27/146

Abstract: A highly convenient imaging device is provided. Alternatively, a highly reliable imaging device is provided. Alternatively, a highly convenient authentication device is provided. Alternatively, a highly reliable authentication device is provided. The imaging device includes a substrate, a pixel array, and an adhesive layer. The substrate has flexibility, the pixel array is positioned over a first surface of the substrate, and the adhesive layer is positioned on a second surface facing the first surface of the substrate. The pixel array includes a light-receiving element and a light-emitting element. The light-receiving element has a function of sensing infrared light and includes a first pixel electrode, an active layer, and a common electrode. The light-emitting element has a function of emitting infrared light and includes a second pixel electrode, a light-emitting layer, and the common electrode. The active layer is positioned over the first pixel electrode and contains a first organic compound. The light-emitting layer is positioned over the second pixel electrode and contains a second organic compound different from the first organic compound. The common electrode includes a portion overlapping with the first pixel electrode with the active layer therebetween, and a portion overlapping with the second pixel electrode with the light-emitting layer therebetween.

公开(公告)号：US20200013332A1

公开(公告)日：2020-01-09

申请号：US16490679

申请日：2018-03-07

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kiyotaka KIMURA ,  Hidetomo KOBAYASHI

IPC: G09G3/3233 ,  G09G3/3275 ,  G09G3/36

Abstract: A method for reducing power consumption of a source driver included in a display device and suppressing heat generation is provided. In a display device in which each pixel is supplied with a data signal of image data through a source line, a source driver is included, each source line is electrically connected to the source driver, and the source driver has a function of driving the source lines. In the case where the amount of change of the data signal of the image data is small, in other words, in the case where power for charging and discharging the source line can be small, the source driver reduces the apparent size of the transistor at the output stage, and power consumption can be reduced. Furthermore, the amount of heat generation can be reduced.

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。