公开(公告)号：US20240373675A1

公开(公告)日：2024-11-07

申请号：US18664587

申请日：2024-05-15

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Susumu KAWASHIMA ,  Koji KUSUNOKI ,  Kazunori WATANABE ,  Kouhei TOYOTAKA ,  Naoto KUSUMOTO ,  Shunpei YAMAZAKI

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

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：US20240265877A1

公开(公告)日：2024-08-08

申请号：US18413254

申请日：2024-01-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hidetomo KOBAYASHI ,  Kouhei TOYOTAKA

IPC: G09G3/3266 ,  G09G3/3233 ,  G09G3/34 ,  G09G3/36 ,  H10K59/121

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G09G3/3426 ,  G09G3/3648 ,  G09G2300/023 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2300/0456 ,  G09G2300/046 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2310/0286 ,  H10K59/1213

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：US20240138167A1

公开(公告)日：2024-04-25

申请号：US18278199

申请日：2022-02-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiromichi GODO ,  Yoshiyuki KUROKAWA ,  Kouhei TOYOTAKA ,  Kazuki TSUDA ,  Satoru OHSHITA ,  Hidefumi RIKIMARU

IPC: H10K39/34 ,  G06F3/01 ,  G09G3/3208 ,  H10K59/65

CPC classification number: H10K39/34 ,  G06F3/013 ,  G09G3/3208 ,  H10K59/65 ,  G09G2330/021 ,  G09G2354/00 ,  G09G2360/14

Abstract: An electronic device having an eye tracking function is provided. The electronic device includes a display device and an optical system. The display device includes a first light-emitting element, a second light-emitting element, a sensor portion, and a driver circuit portion. The sensor portion includes a light-receiving element. The first light-emitting element has a function of emitting infrared light or visible light. The second light-emitting element has a function of emitting light of a color different from that of light emitted from the first light-emitting element. When the first light-emitting element emits infrared light, the light-receiving element has a function of detecting the infrared light that is emitted from the first light-emitting element and reflected by an eyeball of a user. When the first light-emitting element emits visible light, the light-receiving element has a function of detecting the visible light that is emitted from the first light-emitting element and reflected by the eyeball of the user. The first light-emitting element and the second light-emitting element are placed in one layer. The layer where the first light-emitting element and the second light-emitting element are positioned overlaps with the sensor portion.

公开(公告)号：US20230138701A1

公开(公告)日：2023-05-04

申请号：US17911147

申请日：2021-03-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kouhei TOYOTAKA ,  Kiyotaka KIMURA ,  Hidetomo KOBAYASHI ,  Kei TAKAHASHI

IPC: G09G3/3275

Abstract: A low-power display device is provided. The display device is provided with a plurality of display portions. A data driver circuit and an addition circuit are provided to have a region overlapping with the display portion. First analog data is output from the data driver circuit in the case where first digital data consisting of a first digital value is input to the data driver circuit, whereas second analog data is output from the data driver circuit in the case where second digital data consisting of a second digital value is input to the data driver circuit. The addition circuit generates analog data corresponding to digital data that has a high-order bit that is the first digital value and a low-order bit that is the second digital value, by adding the second analog data to the first analog data. An output terminal of the data driver circuit is directly connected to an input terminal of the addition circuit without through an amplifier circuit.

公开(公告)号：US20220319462A1

公开(公告)日：2022-10-06

申请号：US17836244

申请日：2022-06-09

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Susumu KAWASHIMA ,  Kouhei TOYOTAKA ,  Kei TAKAHASHI

IPC: G09G3/36 ,  G06F3/041 ,  G06F3/044

Abstract: A display device that achieves both high-accuracy sensing by a touch sensor unit and smooth input using the touch sensor unit is provided. The display device includes a display unit and the touch sensor unit. The touch sensor unit performs touch sensing operation at a different timing from display image rewriting by the display unit, whereby the high-accuracy sensing can be achieved. The display unit has a function of rewriting a display image only in a region that needs to be rewritten. In the case where the entire display region is not necessarily rewritten, the time for the sensing operation by the touch sensor unit can be lengthened, whereby the smooth input can be achieved.

公开(公告)号：US20210183294A1

公开(公告)日：2021-06-17

申请号：US17269736

申请日：2019-09-09

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kouhei TOYOTAKA ,  Kazunori WATANABE ,  Susumu KAWASHIMA ,  Daisuke KUBOTA ,  Tetsuji ISHITANI ,  Akio YAMASHITA

IPC: G09G3/20

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：US20210073610A1

公开(公告)日：2021-03-11

申请号：US16772281

申请日：2018-12-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutaka KURIKI ,  Sachiaki TEZUKA ,  Kouhei TOYOTAKA

IPC: G06N3/02 ,  H01L21/02 ,  H05H1/46

Abstract: A thin film manufacturing apparatus capable of forming thin films with high uniformity is provided. A thin film manufacturing apparatus capable of controlling various kinds of set conditions during thin film formation is provided. The thin film manufacturing apparatus includes a treatment chamber, a gas supply means, an evacuation means, an electric power supply means, an arithmetic portion, and a control device; the gas supply means supplies gas into the treatment chamber; the evacuation means adjusts a pressure in the treatment chamber; the electric power supply means applies voltage between electrodes provided in the treatment chamber; the arithmetic portion has a function of performing detection of an abnormal state and inference with the use of a neural network during thin film formation; and the control device controls various kinds of set conditions in accordance with results of the detection and the inference during the thin film formation.

公开(公告)号：US20210035497A1

公开(公告)日：2021-02-04

申请号：US16964735

申请日：2019-01-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kouhei TOYOTAKA ,  Daiki NAKAMURA

IPC: G09G3/3225 ,  H01L27/32 ,  H01L51/52

Abstract: A novel display panel that is highly convenient or reliable is provided. The display panel includes a display region, a first functional layer, and a second functional layer. The display region includes a pixel, and the pixel includes a display element and a pixel circuit. The first functional layer includes the pixel circuit, a scan line, and a first connection portion. The display element is electrically connected to the pixel circuit, and the pixel circuit is electrically connected to the scan line. The second functional layer includes a region overlapping with the first functional layer, the second functional layer includes a driver circuit and a wiring, and the driver circuit is provided so that the pixel circuit is positioned between the driver circuit and the display element. The wiring is electrically connected to the scan line at the first connection portion, and the wiring is electrically connected to the driver circuit.

公开(公告)号：US20200312261A1

公开(公告)日：2020-10-01

申请号：US16850401

申请日：2020-04-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroyuki MIYAKE ,  Kouhei TOYOTAKA ,  Shunpei YAMAZAKI

IPC: G09G3/36 ,  G11C19/28 ,  H01L27/12

Abstract: To provide a semiconductor device including a narrowed bezel obtained by designing a gate driver circuit. A gate driver of a display device includes a shift register unit, a demultiplexer circuit, and n signal lines. By connecting the n signal lines for transmitting clock signals to one stage of the shift register unit, (n−3) output signals can be output. The larger n becomes, the smaller the rate of signal lines for transmitting clock signals which do not contribute to output becomes; accordingly, the area of the shift register unit part is small compared to a conventional structure in which one stage of a shift register unit outputs one output signal. Therefore, the gate driver circuit can have a narrow bezel.

公开(公告)号：US20200279525A1

公开(公告)日：2020-09-03

申请号：US16758108

申请日：2018-11-01

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Susumu KAWASHIMA ,  Koji KUSUNOKI ,  Kazunori WATANABE ,  Kouhei TOYOTAKA ,  Kei TAKAHASHI ,  Kentaro HAYASHI ,  Shunpei YAMAZAKI

IPC: G09G3/3225 ,  H01L27/32 ,  H01L29/786

Abstract: A display device that can display a high-luminance image is provided. The display device includes a display element and a memory circuit which is electrically connected to a first wiring and a second wiring. First, a reference potential is supplied to the first wiring. Next, a first image signal is supplied to the memory circuit through the second wiring. Then, the second image signal is added to the first image signal by supplying the second image signal to the memory circuit through the first wiring. After that, an image obtained by superimposing an image corresponding to the first image signal and an image corresponding to the second image signal on each other is displayed with the display element.