Patents by Inventor Koji KUSUNOKI

Koji KUSUNOKI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11456320
    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.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: September 27, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kenichi Okazaki, Daisuke Kurosaki, Yasutaka Nakazawa, Kazunori Watanabe, Koji Kusunoki
  • Patent number: 11455940
    Abstract: A display device that inhibits display deterioration is provided. The display device estimates the amount of deterioration of a pixel included in the display device and corrects a first image signal supplied to the pixel. The display device includes a display panel including a plurality of pixels, a frame memory, and an arithmetic portion. The pixels each include a light-emitting element and a transistor supplying a current to the light-emitting element. The arithmetic portion has a function of performing an arithmetic operation in accordance with a regression model. A forecast error parameter and an output parameter are set in the arithmetic portion. The arithmetic portion updates the forecast error parameter from a first observation signal supplied from the frame memory and a second observation signal supplied from the pixel, in accordance with the regression model, and updates an output parameter by the forecast error parameter in accordance with the regression model.
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: September 27, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Koji Kusunoki, Kei Takahashi, Toshiyuki Isa
  • Publication number: 20220299831
    Abstract: A display apparatus in which a high voltage can be supplied to a display device is provided. 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 functioning as signal lines. 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. In the case where image data corresponding to the digital image data is supplied to the pixel, 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 first data.
    Type: Application
    Filed: June 10, 2022
    Publication date: September 22, 2022
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kei TAKAHASHI, Susumu KAWASHIMA, Koji KUSUNOKI, Kouhei TOYOTAKA, Kazunori WATANABE
  • Patent number: 11450694
    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.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: September 20, 2022
    Inventors: Shunpei Yamazaki, Koji Kusunoki, Shingo Eguchi
  • Publication number: 20220292871
    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.
    Type: Application
    Filed: September 2, 2020
    Publication date: September 15, 2022
    Inventors: Susumu KAWASHIMA, Kazunori WATANABE, Koji KUSUNOKI, Satoshi YOSHIMOTO
  • Publication number: 20220284976
    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.
    Type: Application
    Filed: May 20, 2022
    Publication date: September 8, 2022
    Inventors: Seiko AMANO, Kouhei TOYOTAKA, Hiroyuki MIYAKE, Aya MIYAZAKI, Hideaki SHISHIDO, Koji KUSUNOKI
  • Publication number: 20220278177
    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.
    Type: Application
    Filed: July 8, 2020
    Publication date: September 1, 2022
    Inventors: Daisuke KUBOTA, Taisuke KAMADA, Ryo HATSUMI, Koji KUSUNOKI, Kazunori WATANABE, Susumu KAWASHIMA
  • Publication number: 20220278139
    Abstract: A display device with a novel structure is provided. The display device includes a first substrate provided with a plurality of pixels including a display element, and a second substrate including a first conductive layer provided with a plurality of first openings. The first conductive layer has a function of an antenna capable of transmitting and receiving a radio signal. The pixel and the first opening include a region where the pixel and the first opening overlap with each other. The second substrate includes an element layer. The element layer includes a transistor. The transistor has a function of an amplifier capable of amplifying the radio signal. The transistor each includes a semiconductor layer including a metal oxide in a channel formation region. The metal oxide contains In, Ga, and Zn.
    Type: Application
    Filed: July 10, 2020
    Publication date: September 1, 2022
    Inventors: Takayuki IKEDA, Hitoshi KUNITAKE, Koji KUSUNOKI, Yoshiaki OIKAWA, Shunpei YAMAZAKI
  • Patent number: 11431199
    Abstract: Deterioration of a storage battery included in an electronic device is reduced. Power consumption of an electronic device is reduced. A power feeding device having excellent performance is provided. The power feeding device includes a power feeding coil, a control circuit, and a neural network and has a function of charging a storage battery with a wireless signal supplied by the power feeding coil. The control circuit has a function of estimating a remaining capacity value of the storage battery, the control circuit has a function of supplying the estimated remaining capacity value to the neural network, the neural network outputs a value corresponding to the supplied remaining capacity value to the control circuit, the control circuit determines a charge condition for the storage battery on the basis of the value output by the neural network, and the power feeding device has a function of charging the storage batten under the determined charge condition.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: August 30, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Koji Kusunoki, Toshiyuki Isa, Akihiro Chida, Kouhei Toyotaka, Ryota Tajima
  • Patent number: 11423855
    Abstract: A novel display panel that is highly convenient or reliable is provided. A pixel circuit includes a first switch, a node, a capacitor, and a second switch. The first switch includes a first terminal to which a first signal is supplied and a second terminal electrically connected to the node. The capacitor includes a first terminal electrically connected to the node and a second terminal electrically connected to the second switch. The second switch includes a first terminal to which a second signal is supplied and a second terminal electrically connected to the second terminal of the capacitor. In addition, the second switch has a function of changing from a non-conducting state to a conducting state when the first switch is in a non-conducting state and a function of changing from a conducting state to a non-conducting state when the first switch is in a non-conducting state. The display element performs display on the basis of a potential of the node.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: August 23, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kouhei Toyotaka, Kei Takahashi, Koji Kusunoki, Kazunori Watanabe, Susumu Kawashima
  • Patent number: 11417687
    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.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: August 16, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Koji Kusunoki, Yoshiaki Oikawa, Kensuke Yoshizumi
  • Publication number: 20220253517
    Abstract: A composite device with a high security level is provided. A composite device capable of inhibiting unauthorized use favorably is provided. The composite device includes a control portion, a detection portion, an authentication portion, and a memory portion. The detection portion has a function of detecting a touch and a function of obtaining first fingerprint data of a finger touching the detection portion. The authentication portion has a function of executing user authentication processing. The memory portion has a function of retaining second fingerprint data registered in advance. The control portion has a function of bringing a system into an unlocked state when the authentication portion authenticates a user and a function of comparing the first fingerprint data obtained by the detection portion and the second fingerprint data when the detection portion detects a touch, and bringing the system into a locked state in the case where those data do not match.
    Type: Application
    Filed: July 13, 2020
    Publication date: August 11, 2022
    Inventors: Shunpei YAMAZAKI, Koji KUSUNOKI, Daisuke KUBOTA
  • Publication number: 20220254860
    Abstract: A display device that can easily achieve higher definition is provided The display device includes a pixel, a first wiring, and a second wiring. The pixel includes first to fourth transistors, a first capacitor, and a light-emitting element. One of a source and a drain of the first transistor is connected to the first wiring, and the other of the source and the drain of the first transistor is connected to a gate of the second transistor and to the first capacitor. The light-emitting element is connected to one of a source and a drain of the second transistor. The first wiring is supplied with a first data potential. The second wiring is supplied with a second data potential and a reset potential in different periods. The third transistor supplies the second data potential to the first capacitor. The fourth transistor supplies the reset potential to the light-emitting element.
    Type: Application
    Filed: April 27, 2022
    Publication date: August 11, 2022
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Kazunori WATANABE, Susumu KAWASHIMA, Koji KUSUNOKI
  • Publication number: 20220255045
    Abstract: A novel functional panel that is highly convenient, useful, or reliable is provided. The functional panel includes a base material and a pair of pixels, and the base material covers the pair of pixels and has a light-transmitting property. The pair of pixels includes one pixel and another pixel, and the one pixel includes a light-emitting device and a first microlens. The light-emitting device emits light toward the base material, and the first microlens is interposed between the base material and the light emission and converges light. The first microlens includes a first surface and a second surface; the second surface is closer to the light-emitting device than the first surface is; and the second surface has a smaller radius of curvature than the first surface. The other pixel includes a photoelectric conversion device and a second microlens. The second microlens is interposed between the base material and the photoelectric conversion and converges external light incident from the base material side.
    Type: Application
    Filed: June 29, 2020
    Publication date: August 11, 2022
    Inventors: Shunpei YAMAZAKI, Daiki NAKAMURA, Ryo HATSUMI, Rai SATO, Shingo EGUCHI, Koji KUSUNOKI
  • Publication number: 20220246596
    Abstract: A display device having a narrow bezel region is provided. The display device includes a first layer and a second layer. The first layer includes a source driver and one part of a sensor, and the second layer includes a gate driver, a plurality of pixels, and the other part of the sensor. The plurality of pixels include a pixel in which a light-emitting element emits light and a pixel having a function of the gate driver. An opening portion where the one part of the sensor is formed and a first terminal connected to the source driver are provided on the top surface of the first layer, and a second terminal is provided on the opposite side of the surface where the pixels included in the second layer are arranged. The first terminal is bonded to the second terminal, so that they are electrically connected to each other and the sensor is formed.
    Type: Application
    Filed: June 12, 2020
    Publication date: August 4, 2022
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei YAMAZAKI, Hideaki SHISHIDO, Koji KUSUNOKI, Takahiro FUKUTOME
  • Publication number: 20220246694
    Abstract: A display apparatus having a photosensing function is provided. The display apparatus includes a first pixel circuit and a second pixel circuit. The first pixel circuit includes a light-receiving device, a first transistor, and a second transistor. The second pixel circuit includes a light-emitting device. The light-receiving device includes a first pixel electrode, an active layer, and a common electrode. The light-emitting device includes a second pixel electrode, a light-emitting layer, and the common electrode. The active layer is positioned over the first pixel electrode and includes a first organic compound. The light-emitting layer is positioned over the second pixel electrode and includes a second organic compound different from the first organic compound. The common electrode includes a portion overlapping with the first pixel electrode with the active layer therebetween and a portion overlapping with the second pixel electrode with the light-emitting layer therebetween.
    Type: Application
    Filed: June 23, 2020
    Publication date: August 4, 2022
    Inventors: Kazunori WATANABE, Koji KUSUNOKI, Susumu KAWASHIMA, Taisuke KAMADA, Ryo HATSUMI, Daisuke KUBOTA
  • Patent number: 11403738
    Abstract: A display device having a high display quality is provided. The display device is formed such that for each target block that is to be displayed, different super-resolution processing are applied. Specifically, an image analysis unit analyzes image data that is input, and a target block within an image to be displayed is specified. In the image analysis unit, data of the target block is analyzed using a learned neural network, and an image dividing unit is controlled to divide the image data according to the analysis results. In the image analysis unit, in order to perform different super processing that applies to each image data that has been divided according to the analysis results, an image calculation processing unit including a plurality of super-resolution processing circuits is controlled.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: August 2, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Kazunori Watanabe, Koji Kusunoki
  • Publication number: 20220230600
    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.
    Type: Application
    Filed: April 5, 2022
    Publication date: July 21, 2022
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Susumu KAWASHIMA, Koji KUSUNOKI, Kazunori WATANABE, Kouhei TOYOTAKA, Naoto KUSUMOTO, Shunpei YAMAZAKI
  • Publication number: 20220214717
    Abstract: A data processing device is provided. The data processing device includes a functional panel and a first surface to a fifth surface. The functional panel includes a first region to a fifth region. The second region performs display in one direction. The third region is positioned between the first region and the second region and can be bent. The fifth region is positioned between the first region and the fourth region and can be bent. The fourth region has a function of performing display in one direction in a state where the third region and the fifth region are bent. The first surface includes the first region and a light-emitting element. The light-emitting element emits light. The second surface includes the second region and a photoelectric conversion element. The photoelectric conversion element converts the light into an electric signal. The third surface is positioned between the first surface and the second surface, can be bent, and includes the third region.
    Type: Application
    Filed: April 27, 2020
    Publication date: July 7, 2022
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Koji KUSUNOKI, Ryo HATSUMI, Daisuke KUBOTA
  • Patent number: 11373610
    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.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: June 28, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Susumu Kawashima, Koji Kusunoki, Kazunori Watanabe, Naoto Kusumoto