公开(公告)号：US11450694B2

公开(公告)日：2022-09-20

申请号：US17267210

申请日：2019-08-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Koji Kusunoki ,  Shingo Eguchi

IPC: H01L29/10 ,  H01L27/12

Abstract: A highly reliable display apparatus is provided.
In an EL display apparatus including a specific pixel having a function of adding data, a storage node is provided in the pixel, and first data can be held in the storage node. In the pixel, second data is added to the first data through capacitive coupling, whereby third data can be generated. A light-emitting device operates in accordance with the third data. In the pixel, a light-emitting device that requires a high voltage for light emission or a light-emitting device to which application of a high voltage is preferred is provided.

公开(公告)号：US11373610B2

公开(公告)日：2022-06-28

申请号：US17298999

申请日：2019-12-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Susumu Kawashima ,  Koji Kusunoki ,  Kazunori Watanabe ,  Naoto Kusumoto

IPC: G09G3/36 ,  G02F1/1368

Abstract: A display apparatus with low-power consumption is provided. The display apparatus includes an inverter circuit and a pixel having a function of adding data, and the inverter circuit has a function of inverting data supplied from a source driver. The inverter circuit has a function of inverting data supplied from a source driver. The pixel has a function of adding data supplied from the source driver and the inverter circuit. Accordingly, the pixel can generate a voltage several times higher than the output voltage of the source driver and can supply the voltage to a display device. With such a structure, the output voltage of the source driver can be lowered, so that a display apparatus with low power consumption can be achieved.

公开(公告)号：US11348653B2

公开(公告)日：2022-05-31

申请号：US16458304

申请日：2019-07-01

Applicant: Semiconductor Energy Laboratory Co., Ltd.

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

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

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：US11313910B2

公开(公告)日：2022-04-26

申请号：US16645980

申请日：2018-09-05

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Toshiyuki Isa ,  Koji Kusunoki ,  Akihiro Chida ,  Kouhei Toyotaka ,  Ryota Tajima

IPC: G01R31/367 ,  G01R31/3842 ,  G01R31/389 ,  H01M10/0525 ,  H01M10/42

Abstract: An anomaly detection system for a secondary battery which detects the remaining capacity of the secondary battery on an electric vehicle, cautions against the secondary battery with anomalous characteristics, stops using the secondary battery, changes the secondary battery, or changes charging conditions of the secondary battery is provided. The anomaly detection system is provided; the system compares a value obtained by estimating internal resistance or SOC of a secondary battery based on the measured value of a current or a voltage of the secondary battery with the use of a nonlinear Kalman filter and a value input to an anomaly detection system (network) of AI to predict a change in the internal resistance; the system regards a case where the difference is large as an anomaly; and the system detects an anomaly.

公开(公告)号：US11302278B2

公开(公告)日：2022-04-12

申请号：US16644103

申请日：2018-09-04

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

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

IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/105 ,  H01L27/12 ,  H01L29/24 ,  H01L29/786

Abstract: A display device capable of performing image processing is provided. A memory node is provided in each pixel included in the display device. An intended correction data is held in the memory node. The correction data is calculated by an external device and written into each pixel. The correction data is added to image data by capacitive coupling, and the resulting data is supplied to a display element. Thus, the display element can display a corrected image. The correction enables image upconversion, for example.

公开(公告)号：US11100855B2

公开(公告)日：2021-08-24

申请号：US16772912

申请日：2018-12-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

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

IPC: G09G3/36 ,  G09G5/00 ,  G09G3/3225 ,  H01L27/12 ,  G02F1/1368 ,  H01L27/32

Abstract: A display device capable of improving image quality is provided.
A first pixel circuit and a second pixel circuit are included; a memory node is provided in each pixel circuit and a first signal can be retained in the memory node. The first signal is added to a second signal by capacitive coupling, and then can be supplied to a display element. Thus, the display device can display a corrected image. Furthermore, the first pixel circuit and the second pixel circuit share a signal line, whereby the aperture ratio of a pixel can be increased.

公开(公告)号：US20140204073A1

公开(公告)日：2014-07-24

申请号：US14219275

申请日：2014-03-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kouhei Toyotaka ,  Hiroyuki Miyake ,  Ryo Arasawa ,  Koji Kusunoki ,  Tsutomu Murakawa

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/20 ,  G09G3/36 ,  G09G3/3688 ,  G09G2320/103 ,  G09G2330/04

Abstract: Provided is a liquid crystal display device having a pixel including a transistor and a liquid crystal element and a protection circuit electrically connected to one of a source and a drain of the transistor through a data line. The protection circuit includes a first terminal supplied with a first power supply potential and a second terminal supplied with a second power supply potential higher than the first power supply potential. In a moving image display mode, an image signal is input from the data line to the liquid crystal element through the transistor, and the first power supply potential is set at the first potential. In a still image display mode, supply of the image signal is stopped, and the first power supply potential is set at the second potential. The second potential is substantially the same as the minimum value of the image signal.

Abstract translation: 提供一种液晶显示装置，其具有包括晶体管和液晶元件的像素，以及通过数据线电连接到晶体管的源极和漏极之一的保护电路。 保护电路包括提供有第一电源电位的第一端子和被提供有高于第一电源电位的第二电源电位的第二端子。 在运动图像显示模式中，图像信号通过晶体管从数据线输入到液晶元件，并且第一电源电位被设置为第一电位。 在静止图像显示模式下，停止图像信号的供给，将第一电源电位设定为第二电位。 第二电位与图像信号的最小值基本相同。

公开(公告)号：US12271537B2

公开(公告)日：2025-04-08

申请号：US18093435

申请日：2023-01-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Koji Kusunoki ,  Daisuke Kubota ,  Kensuke Yoshizumi

IPC: G06F3/0354 ,  G09G3/3233 ,  H10K65/00

Abstract: A highly convenient display system is provided. A display system that enables a screen to be operated easily with a laser pointer is provided. A display system that enables a screen to be operated by a large number of people is provided. The display system includes a light-emitting apparatus and a display device. The light-emitting apparatus includes a means for emitting visible laser light and a means for emitting invisible light. The display device includes a display unit including a means for displaying an image and a means for obtaining positional information on a portion irradiated with the visible light, and a means for receiving the invisible light. The display system has a function of performing processing in accordance with the positional information when the invisible light is received.

公开(公告)号：US12190812B2

公开(公告)日：2025-01-07

申请号：US18283844

申请日：2022-04-11

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Kenichi Okazaki ,  Koji Kusunoki

IPC: G09G3/32 ,  G09G3/3233 ,  H10K59/121

Abstract: A display device that has high display quality is provided. A highly reliable display device is provided. A display device with low power consumption is provided. A light-emitting element is electrically connected to one of a source and a drain of a first transistor. The other of the source and the drain of the first transistor is electrically connected to one of a source and a drain of a second transistor. A gate electrode of the second transistor is electrically connected to one of a source and a drain of a third transistor. A semiconductor layer of the second transistor and a semiconductor layer of the third transistor each include indium, zinc and a third metal. The ratio of the number of indium atoms to the total number of the indium atoms, zinc atoms, and atoms of the third metal in the semiconductor layer of the second transistor is higher than or equal to 30 atomic % and lower than or equal to 100 atomic %. The second transistor has a function of controlling the amount of light emission of the light-emitting element.

公开(公告)号：US12165575B2

公开(公告)日：2024-12-10

申请号：US18380819

申请日：2023-10-17

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.