公开(公告)号：US12271233B2

公开(公告)日：2025-04-08

申请号：US18136384

申请日：2023-04-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Koji Kusunoki ,  Hiroyuki Miyake ,  Kazunori Watanabe

IPC: G06F1/16 ,  G06F3/041 ,  G06F3/044 ,  G06F3/045 ,  G06F3/0488 ,  G06F15/02 ,  H10K59/40 ,  H10K77/10

Abstract: To increase the detection sensitivity of a touch panel, provide a thin touch panel, provide a foldable touch panel, or provide a lightweight touch panel. A display element and a capacitor forming a touch sensor are provided between a pair of substrates. Preferably, a pair of conductive layers forming the capacitor each have an opening. The opening and the display element are provided to overlap each other. A light-blocking layer is provided between a substrate on the display surface side and the pair of conductive layers forming the capacitor.

公开(公告)号：US12243459B2

公开(公告)日：2025-03-04

申请号：US18096117

申请日：2023-01-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kouhei Toyotaka ,  Kazunori Watanabe ,  Susumu Kawashima ,  Daisuke Kubota ,  Tetsuji Ishitani ,  Akio Yamashita

IPC: G09G3/20 ,  G06F3/041

Abstract: A flip-flop circuit is provided. A driver circuit is provided. The flip-flop circuit includes first to fifth input terminals and first to third output terminals, the first input terminal is supplied with a first trigger signal, the second input terminal is supplied with a second trigger signal, the third input terminal is supplied with a batch selection signal, the fourth input terminal is supplied with a first pulse width modulation signal, and the fifth input terminal is supplied with a second pulse width modulation signal. The first output terminal supplies a first selection signal in response to the first pulse width modulation signal in a period from supply of the first trigger signal to supply of the second trigger signal, the first output terminal supplies the first selection signal in a period during which the batch selection signal is supplied, the second output terminal supplies a second selection signal in response to the second pulse width modulation signal in the period from the supply of the first trigger signal to the supply of the second trigger signal, and the third output terminal supplies a third trigger signal.

公开(公告)号：US12178093B2

公开(公告)日：2024-12-24

申请号：US17642425

申请日：2020-09-09

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei Yamazaki ,  Koji Kusunoki ,  Kazunori Watanabe ,  Susumu Kawashima ,  Daisuke Kubota ,  Taisuke Kamada ,  Ryo Hatsumi

IPC: H01L29/08 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K59/121 ,  H10K59/131 ,  H10K77/10 ,  H10K101/40

Abstract: The resolution of a display apparatus having a light detection function is increased. A display apparatus includes a plurality of transistors and a light-emitting and light-receiving device in a subpixel. The light-emitting and light-receiving device has a function of emitting light of a first color and a function of receiving light of a second color. One of a source and a drain of a first transistor is electrically connected to a first wiring, and the other thereof is electrically connected to a gate of a second transistor. One electrode of the light-emitting and light-receiving device is electrically connected to one of a source and a drain of the second transistor, one of a source and a drain of a third transistor, and one of a source and a drain of a fifth transistor. One of a source and a drain of a fourth transistor is electrically connected to a second wiring, and the other thereof is electrically connected to the other of the source and the drain of the third transistor.

公开(公告)号：US12096670B2

公开(公告)日：2024-09-17

申请号：US17625854

申请日：2020-07-08

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

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

IPC: H01L51/52 ,  H10K50/86 ,  H10K59/35 ,  H10K59/65 ,  H10K102/00

CPC classification number: H10K59/353 ,  H10K50/865 ,  H10K59/351 ,  H10K59/352 ,  H10K59/65 ,  H10K2102/311

Abstract: The resolution of a display apparatus having alight detection function is increased. The display apparatus includes a light-emitting device and a light-emitting and light-receiving device. The light-emitting device includes a first pixel electrode, a first light-emitting layer, and a common electrode; the light-emitting and light-receiving device includes a second pixel electrode, a second light-emitting layer, an active layer, and the common electrode; the active layer includes an organic compound; the first light-emitting layer is positioned between the first pixel electrode and the common electrode; the second light-emitting layer and the active layer are each positioned between the second pixel electrode and the common electrode; the light-emitting device has a function of emitting light of a first color; and the light-emitting and light-receiving device has a function of emitting light of a second color and a function of receiving light of the first color. The light-emitting and light-receiving device functions as both a light-emitting device and a light-receiving device, whereby a pixel can have a light-receiving function without an increase in the number of subpixels included in the pixel. Furthermore, the pixel can be provided with a light-receiving function without a reduction in the resolution of the display apparatus or a reduction in the aperture ratio of each subpixel.

公开(公告)号：US12080095B2

公开(公告)日：2024-09-03

申请号：US17639632

申请日：2020-09-02

Applicant: Semiconductor Energy Laboratory Co., Ltd.

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

IPC: G06V40/13 ,  G06F3/041 ,  G06V40/12 ,  H04N25/75

CPC classification number: G06V40/1365 ,  G06F3/0412 ,  G06V40/1318 ,  H04N25/75

Abstract: To provide an imaging device having a function of biometric authentication and a function of a touch sensor or a near touch sensor. The imaging device includes pixels, current mirror circuits, and CDS circuits. The pixels, the current mirror circuits, and the CDS circuits are electrically connected to read lines. The current mirror circuit includes a first and a second transistor. One of a source and a drain of the first transistor is electrically connected to the read line, and a power supply potential is supplied to the other of a source and a drain of the second transistor. The imaging device outputs imaging data written to the pixel, as a first signal, to the read line in a first period, and then, resets the imaging data and outputs a second signal from the pixel to the read line in a second period. In the first period, a first potential is supplied to terminals, and in the second period, a second potential is supplied to terminals. A difference between the second potential and the power supply potential is greater than a difference between the first potential and the power supply potential.

公开(公告)号：US12063802B2

公开(公告)日：2024-08-13

申请号：US17768150

申请日：2020-10-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

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

IPC: H10K39/34 ,  H10K50/858

CPC classification number: H10K39/34 ,  H10K50/858

Abstract: A display apparatus having a photoelectric conversion function with high sensitivity is provided. The light extraction efficiency of the display apparatus is increased. The display apparatus includes a light-emitting device, a light-emitting and light-receiving device, a first lens, and a second lens. The light-emitting device has a function of emitting light of a first color. The light-emitting and light-receiving device has a function of emitting light of a second color and a function of receiving light of the first color and converting it into an electric signal. The light emitted by the light-emitting device is emitted to the outside of the display apparatus through the first lens. Light enters the light-emitting and light-receiving device from the outside of the display apparatus through the second lens.

公开(公告)号：US12040333B2

公开(公告)日：2024-07-16

申请号：US18022329

申请日：2021-08-17

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi Yoshimoto ,  Koji Kusunoki ,  Kazunori Watanabe ,  Susumu Kawashima ,  Marina Hiyama ,  Motoharu Saito

IPC: G09G3/20 ,  H01L27/12

CPC classification number: H01L27/1248 ,  G09G3/20 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2330/021

Abstract: A highly functional semiconductor device is provided. The semiconductor device includes a first transistor and a second transistor. The first transistor includes a first semiconductor layer, a first gate electrode, a first electrode, and a second electrode. The second transistor includes a second semiconductor layer, a second gate electrode, a third electrode, and a fourth electrode. The first gate electrode and the second gate electrode are connected to each other, and the second electrode and the third electrode are connected to each other. A first insulating layer, a second insulating layer, and a second semiconductor layer are stacked over the first semiconductor layer. The first insulating layer is less likely to diffuse hydrogen than the second insulating layer. The second insulating layer contains oxide, the first semiconductor layer contains polycrystalline silicon, and the second semiconductor layer contains a metal oxide. The first transistor is a p-channel transistor and the second transistor is an n-channel transistor.

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：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.