公开(公告)号：US12001634B2

公开(公告)日：2024-06-04

申请号：US17919659

申请日：2021-04-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Yoshimoto ,  Kazunori Watanabe ,  Susumu Kawashima ,  Ryo Yamauchi ,  Motoharu Saito ,  Koji Kusunoki ,  Shunpei Yamazaki

IPC: G06F3/042 ,  G06T7/20 ,  G09G3/3233

CPC classification number: G06F3/042 ,  G06T7/20 ,  G09G3/3233 ,  G06T2207/20081 ,  G09G2300/08 ,  G09G2310/08 ,  G09G2330/023

Abstract: A display apparatus capable of performing authentication in a short time is provided. The display apparatus includes a first display portion where first pixels are arranged in a matrix, a second display portion where second pixels are arranged in a matrix, first and second row driver circuits, and a control circuit. Each of the first and the second pixels includes a light-receiving element. The first and the second pixels each have a function of acquiring imaging data by using the light-receiving element. The first and the second row driver circuits each have a function of selecting the first and the second pixels which read out the imaging data. The control circuit has a function of sequentially driving the first and the second row driver circuits in a first mode, and has a function of driving one of the first and the second row driver circuits on the basis of the imaging data in the second mode. Each of the scan rates of the first and the second row driver circuits in the first mode is higher than the scan rate of the first or the second row driver circuit in the second mode.

公开(公告)号：US11990502B2

公开(公告)日：2024-05-21

申请号：US16638825

申请日：2018-08-10

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Susumu Kawashima ,  Koji Kusunoki ,  Kazunori Watanabe ,  Kouhei Toyotaka ,  Naoto Kusumoto ,  Shunpei Yamazaki

IPC: H01L27/32 ,  G09G3/3275 ,  H10K50/11 ,  H10K59/121 ,  H10K59/131

CPC classification number: H10K59/1213 ,  G09G3/3275 ,  H10K50/11 ,  H10K59/1216 ,  H10K59/131 ,  G09G2300/0857 ,  G09G2310/0251 ,  G09G2310/0262

Abstract: To provide a display device capable of performing image processing. Each pixel is provided with a memory circuit in which desired correction data is retained. The correction data is generated by calculation in an external device and written to each pixel. The correction data is added to image data by capacitive coupling and supplied to a display element. Thus, the display element can display a corrected image. Through the correction, image upconversion can be performed, or image quality decreased because of variations in pixel transistor characteristics can be corrected.

公开(公告)号：US11942170B2

公开(公告)日：2024-03-26

申请号：US17749309

申请日：2022-05-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Seiko Amano ,  Kouhei Toyotaka ,  Hiroyuki Miyake ,  Aya Miyazaki ,  Hideaki Shishido ,  Koji Kusunoki

IPC: G11C19/00 ,  G09G3/36 ,  G11C19/18 ,  G11C19/28 ,  H01L25/03 ,  H01L27/12 ,  H03K19/00 ,  H05K7/02

CPC classification number: G11C19/28 ,  G09G3/3677 ,  G09G3/3696 ,  G11C19/184 ,  H01L25/03 ,  H01L27/1222 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1251 ,  H01L27/127 ,  H01L27/1288 ,  H03K19/0013 ,  H05K7/02 ,  G09G2300/0809 ,  G09G2310/0286 ,  H01L2924/0002 ,  H01L2924/0002 ,  H01L2924/00

Abstract: An object is to provide a pulse signal output circuit capable of operating stably and a shift register including the pulse signal output circuit. A pulse signal output circuit according to one embodiment of the disclosed invention includes first to tenth transistors. The ratio W/L of the channel width W to the channel length L of the first transistor and W/L of the third transistor are each larger than W/L of the sixth transistor. W/L of the fifth transistor is larger than W/L of the sixth transistor. W/L of the fifth transistor is equal to W/L of the seventh transistor. W/L of the third transistor is larger than W/L of the fourth transistor. With such a structure, a pulse signal output circuit capable of operating stably and a shift register including the pulse signal output circuit can be provided.

公开(公告)号：US11887972B2

公开(公告)日：2024-01-30

申请号：US17055206

申请日：2019-05-08

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Koji Kusunoki ,  Yosuke Tsukamoto ,  Kensuke Yoshizumi

IPC: H01L25/075 ,  H01L27/12 ,  H01L29/786 ,  H01L33/50 ,  H01L33/58 ,  H01L33/62

CPC classification number: H01L25/0753 ,  H01L27/1225 ,  H01L29/7869 ,  H01L29/78651 ,  H01L33/504 ,  H01L33/58 ,  H01L33/62 ,  H01L2933/0041 ,  H01L2933/0058 ,  H01L2933/0066

Abstract: A display device with a high luminance, a high contrast, and low power consumption is provided. The display device includes a transistor, a light-emitting element, a coloring layer, a phosphor layer, a first electrode, and a second electrode. The light-emitting element is electrically connected to the first electrode and the second electrode, the first electrode is electrically connected to the transistor, and the second electrode is positioned on the same plane as the first electrode. The coloring layer is positioned over the light-emitting element, the phosphor layer is positioned between the light-emitting element and the coloring layer, and the phosphor layer, the light-emitting element, and the coloring layer include a region in which they overlap with one another. The light-emitting element includes a light-emitting diode chip, and the phosphor layer has a function of emitting light of a complementary color of an emission color of the light-emitting element.

公开(公告)号：US11610544B2

公开(公告)日：2023-03-21

申请号：US17546696

申请日：2021-12-09

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shintaro Harada ,  Yoshiyuki Kurokawa ,  Takeshi Aoki ,  Yuki Okamoto ,  Hiroki Inoue ,  Koji Kusunoki ,  Yosuke Tsukamoto ,  Katsuki Yanagawa ,  Kei Takahashi ,  Shunpei Yamazaki

IPC: G09G3/3225 ,  G06F1/16 ,  G06F3/041 ,  G06N3/04 ,  G06N3/08 ,  G09G5/22 ,  G06V30/32 ,  G09G3/36

Abstract: An electronic device capable of efficiently recognizing a handwritten character is provided.
The electronic device includes a first circuit, a display portion, and a touch sensor. The first circuit includes a neural network. The display portion includes a flexible display. The touch sensor has the function of outputting an input handwritten character as image information to the first circuit. The first circuit has the function of analyzing the image information and converting the image information into character information, and a function of displaying an image including the character information on the display portion. The analysis is performed by inference through the use of the neural network.

公开(公告)号：US11610529B2

公开(公告)日：2023-03-21

申请号：US17423237

申请日：2020-01-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazunori Watanabe ,  Susumu Kawashima ,  Masataka Shiokawa ,  Daisuke Kubota ,  Jiro Imada ,  Katsuki Yanagawa ,  Koji Kusunoki

IPC: G09G3/20 ,  G06F3/041 ,  G06F3/044

Abstract: A functional panel is provided. The functional panel includes a first driver circuit, a second driver circuit, and a region. The first driver circuit supplies a first selection signal, the second driver circuit supplies a second selection signal and a third selection signal, and the region includes a pixel. The pixel includes a first pixel circuit, a light-emitting element, a second pixel circuit, and a photoelectric conversion element. The first pixel circuit is supplied with the first selection signal, the first pixel circuit obtains an image signal on the basis of the first selection signal, the light-emitting element is electrically connected to the first pixel circuit, and the light-emitting element emits light on the basis of the image signal. The second pixel circuit is supplied with the second selection signal and the third selection signal in a period during which the first selection signal is not supplied, the second pixel circuit obtains an imaging signal on the basis of the second selection signal and supplies the imaging signal on the basis of the third selection signal, and the photoelectric conversion element is electrically connected to the second pixel circuit and generates the imaging signal.

公开(公告)号：US11513409B2

公开(公告)日：2022-11-29

申请号：US17042326

申请日：2019-03-22

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kouhei Toyotaka ,  Koji Kusunoki

IPC: G02F1/1368 ,  H01L27/12

Abstract: A highly visible display device is provided. The display device includes a transistor, a first conductive layer, a second conductive layer, and a third conductive layer. The channel width of the transistor is greater than or equal to 30 μm and less than or equal to 1000 μm. The transistor includes 2 to 50 semiconductor layers, each of which includes a first region, a second region, and a channel formation region. The channel formation region has a region overlaps with the first conductive layer. The first region overlaps with the second conductive layer and does not overlap with the first conductive layer. The second region overlaps with the third conductive layer and does not overlap with the first conductive layer. The third conductive layer has a function of transmitting visible light, and the second region and the third conductive layer in a stacked state have a function of transmitting visible light.

公开(公告)号：US11501695B2

公开(公告)日：2022-11-15

申请号：US17271221

申请日：2019-09-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Kei Takahashi ,  Susumu Kawashima ,  Koji Kusunoki ,  Kazunori Watanabe

IPC: G09G3/32

Abstract: The power consumption of a display device is reduced. The power consumption of a driver circuit in a display device is reduced. A pixel included in the display device includes a display element. The pixel is configured to have a function of retaining a first voltage corresponding to a first input pulse signal and a function of driving the display element with a third voltage obtained by addition of a second voltage corresponding to a second input pulse signal to the first voltage.

公开(公告)号：US11487373B2

公开(公告)日：2022-11-01

申请号：US17026446

申请日：2020-09-21

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 ,  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：US11417687B2

公开(公告)日：2022-08-16

申请号：US16965053

申请日：2019-01-28

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei Yamazaki ,  Koji Kusunoki ,  Yoshiaki Oikawa ,  Kensuke Yoshizumi

IPC: H01L27/12 ,  G02F1/1368 ,  H01L27/32 ,  H01L29/66 ,  G02F1/1335

Abstract: A high-definition display device is provided. A display device with low power consumption is provided. A highly reliable display device is provided. The display device includes a first transistor and a display element electrically connected to the first transistor. The first transistor includes a first oxide, a second oxide, a first conductor, a second conductor, a third conductor, a first insulator, and a second insulator. The first conductor and the second conductor are positioned over the first oxide to be apart from each other. The first insulator is positioned over the first conductor and the second conductor and includes an opening. The opening overlaps with a portion between the first conductor and the second conductor. The third conductor is positioned in the opening. The second insulator is positioned between the third conductor, and the first oxide, the first conductor, the second conductor, and the first insulator. The second oxide is positioned between the second insulator, and the first oxide, the first conductor, the second conductor, and the first insulator.