Patents by Inventor Chie TORIDONO

Chie TORIDONO 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: 12711883
    Abstract: A display device includes a display panel including a display region in which an input image corresponding to input image data is displayed and a non-display region which is a region other than the display region, each of the display region and the non-display region including a plurality of self-light-emitting elements, a moving mechanism configured to move the display panel along the display region, and a control unit configured to change a position of the display region in the display panel in such a manner that, when controlling the moving mechanism to move the display panel, the position of the display region in space is maintained the same. The control unit lights the non-display region when the input image is displayed in the display region.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: August 18, 2026
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroyuki Furukawa, Chie Toridono, Masafumi Ueno, Masafumi Kawai
  • Publication number: 20260080824
    Abstract: In a period during which a write period and a light emission period are alternately repeated, a timing control unit included in a control device writes data to a first drive circuit group based on input image data during the write period, causes multiple first light-emitting elements to emit light during the light emission period, and causes multiple second light-emitting elements to emit light during at least part of the write period.
    Type: Application
    Filed: September 9, 2022
    Publication date: March 19, 2026
    Inventors: HIROYUKI FURUKAWA, MASAFUMI UENO, Chie TORIDONO
  • Patent number: 12354533
    Abstract: A display device includes: a display panel including a plurality of pixels each provided with a first subpixel and a second subpixel; a storage unit that stores degradation information indicating an amount of decrease in light emission efficiency of one of the first subpixel or the second subpixel; and a control unit that corrects an input video signal, input from outside, in accordance with the degradation information, and generates a video signal to be supplied to each of the first subpixel and the second subpixel.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: July 8, 2025
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroyuki Furukawa, Masafumi Ueno, Chie Toridono
  • Patent number: 12317713
    Abstract: A display device includes: a first subpixel including a quantum dot light-emitting layer configured to emit light of a first color: a second subpixel including a quantum dot light-emitting layer configured to emit light of a second color different from the light of the first color: a third subpixel including a quantum dot light-emitting layer configured to emit light of a third color different from the light of the first color and the light of the second color: and a data processing circuit configured to receive a first input data corresponding to the first subpixel, a second input data corresponding to the second subpixel, and a third input data corresponding to the third subpixel. The data processing circuit generates first output data corresponding to a first data voltage supplied to the first subpixel by using the first input data, the second input data, and the third input data.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: May 27, 2025
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroyuki Furukawa, Masafumi Ueno, Chie Toridono, Yoshihiro Ueta
  • Publication number: 20250157372
    Abstract: A display device includes a control unit obtaining, at time intervals, degradation information on a plurality of subpixels, and setting a data signal to be supplied to each of the subpixels in accordance with the degradation information and determining, from the degradation information, presence or absence of a short circuit between a first power supply unit and a second power supply unit.
    Type: Application
    Filed: April 22, 2022
    Publication date: May 15, 2025
    Inventors: HIROYUKI FURUKAWA, MASAFUMI UENO, Chie TORIDONO, MASAAKI MORIYA
  • Publication number: 20250087123
    Abstract: A display device includes a display panel including a display region in which an input image corresponding to input image data is displayed and a non-display region which is a region other than the display region, each of the display region and the non-display region including a plurality of self-light-emitting elements, a moving mechanism configured to move the display panel along the display region, and a control unit configured to change a position of the display region in the display panel in such a manner that, when controlling the moving mechanism to move the display panel, the position of the display region in space is maintained the same. The control unit lights the non-display region when the input image is displayed in the display region.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 13, 2025
    Inventors: HIROYUKI FURUKAWA, Chie TORIDONO, MASAFUMI UENO, Masafumi KAWAI
  • Patent number: 12205544
    Abstract: A display device includes a plurality of pixel circuits each including a self-luminous element and a switching element that performs switching between light emission and non-light emission of the self-luminous element, the plurality of pixel circuits being provided respectively corresponding to a plurality of pixels, and a control circuit that controls each of the plurality of pixel circuits in response to an image signal of an image to be displayed. The control circuit controls switching between the light emission and the non-light emission by the switching element and thus the self-luminous element emits light at least in a certain period from the start of the dimming control period and a certain period until the end of the dimming control period.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: January 21, 2025
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroyuki Furukawa, Masafumi Ueno, Chie Toridono
  • Publication number: 20240379051
    Abstract: A display device includes a display panel that includes a deterioration characteristic acquisition unit that acquires deterioration characteristic data indicating a degree of deterioration of each of a plurality of pixels, a deterioration characteristic storage unit that compresses the deterioration characteristic data, stores the compressed deterioration characteristic data, and decompresses the stored deterioration characteristic data, a display region shifting unit that generates, from an input image data, shifted image data in which a display region is shifted along a display surface of the display panel, a deterioration compensation unit that generates control data obtained by transforming the shifted image data using the decompressed deterioration characteristic data, to compensate for the deterioration of each of the plurality of pixels, and a drive unit that drives the display panel using the control data, to display the input image in the shifted display region.
    Type: Application
    Filed: October 15, 2021
    Publication date: November 14, 2024
    Inventors: HIROYUKI FURUKAWA, MASAFUMI UENO, Chie TORIDONO, Masafumi KAWAI
  • Publication number: 20240379054
    Abstract: A display device includes a plurality of pixel circuits each including a self-luminous element and a switching element that performs switching between light emission and non-light emission of the self-luminous element, the plurality of pixel circuits being provided respectively corresponding to a plurality of pixels, and a control circuit that controls each of the plurality of pixel circuits in response to an image signal of an image to be displayed. The control circuit controls switching between the light emission and the non-light emission by the switching element and thus the self-luminous element emits light at least in a certain period from the start of the dimming control period and a certain period until the end of the dimming control period.
    Type: Application
    Filed: May 14, 2021
    Publication date: November 14, 2024
    Inventors: HIROYUKI FURUKAWA, MASAFUMI UENO, Chie TORIDONO
  • Publication number: 20240355271
    Abstract: A display device includes: a display panel including a plurality of pixels each provided with a first subpixel and a second subpixel; a storage unit that stores degradation information indicating an amount of decrease in light emission efficiency of one of the first subpixel or the second subpixel; and a control unit that corrects an input video signal, input from outside, in accordance with the degradation information, and generates a video signal to be supplied to each of the first subpixel and the second subpixel.
    Type: Application
    Filed: August 16, 2021
    Publication date: October 24, 2024
    Inventors: HIROYUKI FURUKAWA, MASAFUMI UENO, Chie TORIDONO
  • Patent number: 12114519
    Abstract: A light-emitting element includes a light-emitting layer, an upper electrode provided on a first side of the light-emitting layer, and a lower electrode provided on a second side of the light-emitting layer opposite to the first side. The lower electrode is constituted by a first electrode and a second electrode including a first gap therebetween, the second electrode having an area larger than that of the first electrode. The upper electrode is constituted by a third electrode and a fourth electrode including a second gap therebetween, the third electrode facing the first electrode and the second electrode, the fourth electrode facing the second electrode and having an area smaller than that of the third electrode.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: October 8, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Naoto Inoue, Chie Toridono
  • Patent number: 11908361
    Abstract: The display device is provided with a degree-of-degradation calculating circuit that determines a degree of degradation representing a level of degradation of a compensation-target circuit element included in each of K pixel circuits which are some or all of a plurality of pixel circuits; a variation coefficient calculating circuit that calculates, as a variation coefficient, a value depending on a deviation determined based on degrees of degradation of the K pixel circuits; a reference luminance setting circuit that sets, based on the variation coefficient, reference luminance for determining display luminance of each display element after degradation compensation; and a compensation computing circuit that compensates for degradation of the compensation-target circuit elements by correcting input video signals based on the reference luminance and the degree of degradation of each of the K pixel circuits, upon generating video signals to be supplied to the plurality of pixel circuits.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: February 20, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroyuki Furukawa, Chie Toridono, Masafumi Ueno
  • Publication number: 20230368708
    Abstract: The display device is provided with a degree-of-degradation calculating circuit that determines a degree of degradation representing a level of degradation of a compensation-target circuit element included in each of K pixel circuits which are some or all of a plurality of pixel circuits; a variation coefficient calculating circuit that calculates, as a variation coefficient, a value depending on a deviation determined based on degrees of degradation of the K pixel circuits; a reference luminance setting circuit that sets, based on the variation coefficient, reference luminance for determining display luminance of each display element after degradation compensation; and a compensation computing circuit that compensates for degradation of the compensation-target circuit elements by correcting input video signals based on the reference luminance and the degree of degradation of each of the K pixel circuits, upon generating video signals to be supplied to the plurality of pixel circuits.
    Type: Application
    Filed: October 8, 2020
    Publication date: November 16, 2023
    Inventors: Hiroyuki FURUKAWA, Chie TORIDONO, Masafumi UENO
  • Patent number: 11763732
    Abstract: A display device includes: a light-emitting profile creation circuit creating a first light-emitting profile from a first image signal; and an image signal adjustment circuit adjusting a second image signal in accordance with the first light-emitting profile.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: September 19, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroyuki Furukawa, Masafumi Ueno, Naoto Inoue, Chie Toridono
  • Patent number: 11635837
    Abstract: A display device includes: a temperature distribution obtaining circuit obtaining temperature distribution on a display panel on a basis of a capacitance value signal to be output from a capacitive touch panel overlapping the display panel; and a correcting circuit correcting an input image signal on a basis of the temperature distribution on the display panel, and supplying the input image signal.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: April 25, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroyuki Furukawa, Chie Toridono, Masafumi Ueno
  • Publication number: 20230006000
    Abstract: A display device includes: a first subpixel including a quantum dot light-emitting layer configured to emit light of a first color: a second subpixel including a quantum dot light-emitting layer configured to emit light of a second color different from the light of the first color: a third subpixel including a quantum dot light-emitting layer configured to emit light of a third color different from the light of the first color and the light of the second color: and a data processing circuit configured to receive a first input data corresponding to the first subpixel, a second input data corresponding to the second subpixel, and a third input data corresponding to the third subpixel. The data processing circuit generates first output data corresponding to a first data voltage supplied to the first subpixel by using the first input data, the second input data, and the third input data.
    Type: Application
    Filed: December 12, 2019
    Publication date: January 5, 2023
    Inventors: HIROYUKI FURUKAWA, MASAFUMI UENO, Chie TORIDONO, YOSHIHIRO UETA
  • Publication number: 20220319402
    Abstract: A display device includes: a light-emitting profile creation circuit creating a first light-emitting profile from a first image signal; and an image signal adjustment circuit adjusting a second image signal in accordance with the first light-emitting profile.
    Type: Application
    Filed: June 25, 2019
    Publication date: October 6, 2022
    Inventors: HIROYUKI FURUKAWA, MASAFUMI UENO, NAOTO INOUE, Chie TORIDONO
  • Publication number: 20220317818
    Abstract: A display device includes: a temperature distribution obtaining circuit obtaining temperature distribution on a display panel on a basis of a capacitance value signal to be output from a capacitive touch panel overlapping the display panel; and a correcting circuit correcting an input image signal on a basis of the temperature distribution on the display panel, and supplying the input image signal.
    Type: Application
    Filed: March 22, 2022
    Publication date: October 6, 2022
    Inventors: HIROYUKI FURUKAWA, Chie TORIDONO, MASAFUMI UENO
  • Patent number: 11430387
    Abstract: In a display device that performs external compensation, pixel circuits are classified into specific and general pixel circuits. When display is restarted, a current measurement circuit, along with a drive circuit, measures a current flowing through a drive transistor in the specific pixel circuit as a first current. A correction circuit obtains a recovery ratio for a characteristic of the drive transistor on the basis of an amount of the first current and corrects a video signal for each of the specific and general pixel circuits using the recovery ratio. Thus, when display is restarted, a suitably compensated image is displayed.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: August 30, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroyuki Furukawa, Masafumi Ueno, Chie Toridono
  • Publication number: 20220157240
    Abstract: In a display device that performs external compensation, pixel circuits are classified into specific and general pixel circuits. When display is restarted, a current measurement circuit, along with a drive circuit, measures a current flowing through a drive transistor in the specific pixel circuit as a first current. A correction circuit obtains a recovery ratio for a characteristic of the drive transistor on the basis of an amount of the first current and corrects a video signal for each of the specific and general pixel circuits using the recovery ratio. Thus, when display is restarted, a suitably compensated image is displayed.
    Type: Application
    Filed: March 29, 2019
    Publication date: May 19, 2022
    Inventors: HIROYUKI FURUKAWA, MASAFUMI UENO, Chie TORIDONO