公开(公告)号：US20130207945A1

公开(公告)日：2013-08-15

申请号：US13761461

申请日：2013-02-07

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kazunori Watanabe

IPC: G09G5/00

CPC classification number: G09G5/00 ,  G09G3/3225 ,  G09G5/18 ,  G09G2300/0426 ,  G09G2320/0223 ,  G09G2330/02 ,  G09G2370/08

Abstract: A display device with fewer terminals. The display device includes a timing signal generating circuit which outputs an output signal based on a clock signal, in which one signal line serves as both a signal line to which a start pulse signal that drives the timing signal generating circuit is input and a signal line to which an image signal is input. Further, a blocking circuit which outputs a start pulse to the timing signal generating circuit but does not output the image signal is provided between the signal line and the timing signal generating circuit.

Abstract translation: 具有较少端子的显示设备。 显示装置包括定时信号发生电路，其基于时钟信号输出输出信号，其中一条信号线用作输入定时信号发生电路的起始脉冲信号的信号线和信号线 输入图像信号。 此外，在信号线和定时信号发生电路之间设置有向定时信号发生电路输出起始脉冲但不输出图像信号的分块电路。

公开(公告)号：US12260838B2

公开(公告)日：2025-03-25

申请号：US18235498

申请日：2023-08-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kazunori Watanabe ,  Koji Kusunoki

IPC: G09G3/30 ,  G02F1/1362 ,  G02F1/1368 ,  G09G3/36 ,  G11C19/28

Abstract: A display apparatus with low power consumption is provided. The display apparatus includes a circuit for boosting a signal voltage output from a gate driver. The signal voltage from the gate driver can be boosted and then supplied to a pixel, which is suitable for driving a display device with a high threshold voltage. Furthermore, by utilizing a boosting function, output of the gate driver can be reduced, and power consumption can also be reduced. By combination with a pixel having a boosting function of image data, a display apparatus with lower power consumption can be achieved.

公开(公告)号：US12153749B2

公开(公告)日：2024-11-26

申请号：US17963268

申请日：2022-10-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Daisuke Kubota ,  Ryo Hatsumi ,  Taisuke Kamada ,  Koji Kusunoki ,  Kazunori Watanabe ,  Susumu Kawashima ,  Kensuke Yoshizumi

IPC: G06F3/041 ,  G06F3/042 ,  G06V10/147 ,  G06V40/13

Abstract: A display device featuring a touch detection and a fingerprint imaging functions is provided. A display device includes a light-emitting element and a light-receiving element. The light-emitting element includes a first pixel electrode, a light-emitting layer, and a common electrode, and the light-receiving element includes a second pixel electrode, an active layer, and the common electrode. The first pixel electrode and the second pixel electrode are provided on the same plane. The common electrode overlaps with the first pixel electrode with the light-emitting layer therebetween, and overlaps with the second pixel electrode with the active layer therebetween. A first conductive layer, a second conductive layer, and an insulating layer are provided above the common electrode. The insulating layer is provided above the first conductive layer, and the second conductive layer is provided above the insulating layer. The light-receiving element has a function of receiving light emitted from the light-emitting element.

公开(公告)号：US12142215B2

公开(公告)日：2024-11-12

申请号：US18279110

申请日：2022-02-22

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi Yoshimoto ,  Susumu Kawashima ,  Kazunori Watanabe ,  Tomoaki Atsumi ,  Koji Kusunoki

IPC: G09G3/3233 ,  H10K59/35

Abstract: Provided is a highly reliable semiconductor device. The present invention relates to a shift register circuit including a plurality of stages of sequential circuits. An output signal of a sequential circuit is input to a sequential circuit in the subsequent stage. Before a sequential circuit outputs a signal and after the sequential circuit outputs the signal, the potential of a gate of a transistor included in the sequential circuit is changed in accordance with a clock signal so as to avoid voltage stress application between the gate and a source of the transistor for a long time. The shift register circuit can be applied to a scan line driver circuit of a display apparatus, for example.

公开(公告)号：US12080165B2

公开(公告)日：2024-09-03

申请号：US17286093

申请日：2019-10-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Koji Kusunoki ,  Susumu Kawashima ,  Kazunori Watanabe ,  Satoshi Yoshimoto

IPC: G08G1/0967 ,  G01C21/34 ,  G02F1/1334 ,  G02F1/1337 ,  G09G3/36

CPC classification number: G08G1/096775 ,  G01C21/34 ,  G02F1/1334 ,  G02F1/1337 ,  G09G3/36 ,  G09G2300/0426 ,  G09G2320/0247 ,  G09G2380/10

Abstract: A novel information processing device that is highly convenient or reliable is provided. The information processing device includes a sensor portion, a communication portion, a display portion, and an arithmetic device; the sensor portion has a function of obtaining position information, and the communication portion has a function of obtaining map information and legal speed limit information. The arithmetic device identifies first legal speed limit information from the map information on the basis of the position information, the arithmetic device generates first image information including the first legal speed limit information, and the display portion has a function of displaying the first image information.

公开(公告)号：US12052879B2

公开(公告)日：2024-07-30

申请号：US17919554

申请日：2021-04-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kensuke Yoshizumi ,  Susumu Kawashima ,  Koji Kusunoki ,  Kazunori Watanabe

IPC: H10K39/34 ,  G06F3/041 ,  G06F3/042 ,  G06V40/13 ,  G09G3/3233 ,  H10K59/131 ,  H10K59/35

CPC classification number: H10K39/34 ,  G09G3/3233 ,  H10K59/131 ,  H10K59/353 ,  G06F3/0412 ,  G06F3/0421 ,  G06V40/1318 ,  G09G2300/0465 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2354/00 ,  G09G2360/14

Abstract: A display device with an imaging function is provided. A high-resolution imaging device or display device is provided. The display device includes first to third switches, first and second transistors, a capacitor, first and second wirings, and a light-emitting and light-receiving element. One electrode of the first switch is electrically connected to the first wiring, and the other electrode is electrically connected to a gate of the first transistor and one electrode of the capacitor. One electrode of the second switch is electrically connected to one of a source and a drain of the first transistor, one electrode of the light-emitting and light-receiving element, and the other electrode of the capacitor, and the other electrode of the second switch is electrically connected to a gate of the second transistor and one electrode of the third switch. The other electrode of the third switch is electrically connected to the second wiring. The light-emitting and light-receiving element has a function of emitting light of a first color and a function of receiving light of a second color.

公开(公告)号：US11961871B2

公开(公告)日：2024-04-16

申请号：US17055383

申请日：2019-04-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Koji Kusunoki ,  Shingo Eguchi ,  Yosuke Tsukamoto ,  Kazunori Watanabe ,  Kouhei Toyotaka

IPC: H01L27/15 ,  H01L33/00 ,  H01L33/62

CPC classification number: H01L27/156 ,  H01L33/005 ,  H01L33/62 ,  H01L2933/0066

Abstract: A display device with high resolution is provided. Manufacturing cost of a display device using a micro LED as a display element is reduced. The display device includes a substrate, a plurality of transistors, and a plurality of light-emitting diodes. The plurality of light-emitting diodes are provided in a matrix over the substrate. Each of the plurality of transistors are electrically connected to at least one of the plurality of light-emitting diodes. The plurality of light-emitting diodes are positioned closer to the substrate than the plurality of transistors are. The plurality of light-emitting diodes emit light to the opposite side of the substrate.

公开(公告)号：US11869428B2

公开(公告)日：2024-01-09

申请号：US17781409

申请日：2020-12-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Susumu Kawashima ,  Koji Kusunoki ,  Kazunori Watanabe

IPC: G09G3/3233 ,  H10K65/00 ,  G06V40/13 ,  G06F3/041 ,  G06F3/042

CPC classification number: G09G3/3233 ,  H10K65/00 ,  G06F3/0412 ,  G06F3/0421 ,  G06V40/1318 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2330/021 ,  G09G2354/00 ,  G09G2360/14

Abstract: A display apparatus capable of image capturing with high sensitivity is provided. The display apparatus is configured to include first to third switches, a first transistor, a second transistor, and a light-emitting/receiving element. The first switch is electrically connected to a gate of the first transistor. The second switch is positioned between one of a source and a drain of the first transistor and one electrode of the light-emitting/receiving element. The third switch is positioned between the one electrode of the light-emitting/receiving element and a gate of the second transistor. The other of the source and the drain of the first transistor is supplied with a first potential. The other electrode of the light-emitting/receiving element is supplied with a second potential. The light-emitting/receiving element has a function of emitting light of a first color and a function of receiving light of a second color.

公开(公告)号：US11837607B2

公开(公告)日：2023-12-05

申请号：US17944275

申请日：2022-09-14

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Kenichi Okazaki ,  Daisuke Kurosaki ,  Yasutaka Nakazawa ,  Kazunori Watanabe ,  Koji Kusunoki

IPC: G02F1/1368 ,  H01L27/12 ,  G06F3/041 ,  G06F3/044 ,  H01L29/786

CPC classification number: H01L27/1229 ,  G02F1/1368 ,  G06F3/0446 ,  G06F3/04166 ,  H01L29/7869 ,  H01L29/78696

Abstract: A display device includes a liquid crystal element, a transistor, a scan line, and a signal line. The liquid crystal element includes a pixel electrode, a liquid crystal layer, and a common electrode. The scan line and the signal line are each electrically connected to the transistor. The scan line and the signal line each include a metal layer. The transistor is electrically connected to the pixel electrode. A semiconductor layer of the transistor includes a stack of a first metal oxide layer and a second metal oxide layer. The first metal oxide layer includes a region with lower crystallinity than the second metal oxide layer. The transistor includes a first region connected to the pixel electrode. The pixel electrode, the common electrode, and the first region are each configured to transmit visible light. Visible light passes through the first region and the liquid crystal element and exits from the display device.

公开(公告)号：US11815775B2

公开(公告)日：2023-11-14

申请号：US17837711

申请日：2022-06-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kei Takahashi ,  Susumu Kawashima ,  Koji Kusunoki ,  Kouhei Toyotaka ,  Kazunori Watanabe

IPC: G02F1/1362 ,  G02F1/1368 ,  G02F1/137 ,  G09G3/36 ,  G09G3/20 ,  G02F1/133

CPC classification number: G02F1/136286 ,  G02F1/133 ,  G02F1/137 ,  G02F1/1368 ,  G09G3/20 ,  G09G3/2085 ,  G09G3/36 ,  G09G3/3611 ,  G09G3/3648 ,  G09G3/3655 ,  G09G3/3659 ,  G02F1/13793

Abstract: The display apparatus includes a data generation circuit, a source driver circuit, and a pixel. The source driver circuit is electrically connected to the pixel through first and second wirings. The pixel includes a display device that is a liquid crystal device, a potential of one electrode of the display device can be a potential of the first wiring, and a potential of the other electrode of the display device can be a potential of the second wiring. The image data generation circuit has a function of generating digital image data including first and second data. One of the first and second wirings is made to have a potential corresponding to first data, and the other of the first and second wirings is made to have a potential corresponding to the second data. The potential of the first wiring and the potential of the second wiring are interchanged.