Patents by Inventor Masakatsu Tominaga

Masakatsu Tominaga 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).

  • Publication number: 20230341978
    Abstract: A liquid crystal display device 10 includes pixel electrodes 11g that are spaced apart from each other, touch electrodes 14, each of which forms a capacitance with a finger, which is a position input body performing position input, to detect a position of input by the finger, which is the position input body, a touch line 15 that is sandwiched between adjacent pixel electrodes 11g and is connected to the touch electrodes 14, and at least two source lines 11j that extend parallel to the touch line 15. The source lines 11j transmit image signals to the pixel electrodes 11g. The source lines 11j are disposed such that one of the two pixel electrodes 11g is sandwiched between the touch line 15 and one of the two source lines 11j and another one of the two pixel electrodes 11g is sandwiched between another one of the two source lines 11j and the touch line 15.
    Type: Application
    Filed: June 28, 2023
    Publication date: October 26, 2023
    Inventors: MASAKATSU TOMINAGA, MASAHIRO YOSHIDA
  • Patent number: 11740745
    Abstract: A liquid crystal display device 10 includes pixel electrodes 11g that are spaced apart from each other, touch electrodes 14, each of which forms a capacitance with a finger, which is a position input body performing position input, to detect a position of input by the finger, which is the position input body, a touch line 15 that is sandwiched between adjacent pixel electrodes 11g and is connected to the touch electrodes 14, and at least two source lines 11j that extend parallel to the touch line 15. The source lines 11j transmit image signals to the pixel electrodes 11g. The source lines 11j are disposed such that one of the two pixel electrodes 11g is sandwiched between the touch line 15 and one of the two source lines 11j and another one of the two pixel electrodes 11g is sandwiched between another one of the two source lines 11j and the touch line 15.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: August 29, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masakatsu Tominaga, Masahiro Yoshida
  • Patent number: 11740525
    Abstract: A first pixel electrode and a third pixel electrode are disposed on one side of one of a plurality of column lines. A second pixel electrode and a fourth pixel electrode are disposed on another side of the one of the plurality of column lines. A third switching element is disposed on the one side of the one of the plurality of column lines. A fourth switching element is disposed on the other side of the one of the plurality of column lines. The first pixel electrode is connected to a first switching element via a first connection electrode. The second pixel electrode is connected to a second switching element via a second connection electrode. The third pixel electrode is connected to the third switching element. The fourth pixel electrode is connected to the fourth switching element.
    Type: Grant
    Filed: December 9, 2022
    Date of Patent: August 29, 2023
    Assignee: Sharp Display Technology Corporation
    Inventor: Masakatsu Tominaga
  • Publication number: 20230185142
    Abstract: A first pixel electrode and a third pixel electrode are disposed on one side of one of a plurality of column lines. A second pixel electrode and a fourth pixel electrode are disposed on another side of the one of the plurality of column lines. A third switching element is disposed on the one side of the one of the plurality of column lines. A fourth switching element is disposed on the other side of the one of the plurality of column lines. The first pixel electrode is connected to a first switching element via a first connection electrode. The second pixel electrode is connected to a second switching element via a second connection electrode. The third pixel electrode is connected to the third switching element. The fourth pixel electrode is connected to the fourth switching element.
    Type: Application
    Filed: December 9, 2022
    Publication date: June 15, 2023
    Inventor: Masakatsu TOMINAGA
  • Publication number: 20220350442
    Abstract: A liquid crystal display device 10 includes pixel electrodes 11g that are spaced apart from each other, touch electrodes 14, each of which forms a capacitance with a finger, which is a position input body performing position input, to detect a position of input by the finger, which is the position input body, a touch line 15 that is sandwiched between adjacent pixel electrodes 11g and is connected to the touch electrodes 14, and at least two source lines 11j that extend parallel to the touch line 15. The source lines 11j transmit image signals to the pixel electrodes 11g. The source lines 11j are disposed such that one of the two pixel electrodes 11g is sandwiched between the touch line 15 and one of the two source lines 11j and another one of the two pixel electrodes 11g is sandwiched between another one of the two source lines 11j and the touch line 15.
    Type: Application
    Filed: July 19, 2022
    Publication date: November 3, 2022
    Inventors: MASAKATSU TOMINAGA, MASAHIRO YOSHIDA
  • Patent number: 11462179
    Abstract: A liquid crystal display device includes a first liquid crystal display panel of a field sequential type, a second liquid crystal display panel of a color filter type disposed on a back face side of the first liquid crystal display panel, and a backlight configured to emit white light on a back face side of the second liquid crystal display panel.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: October 4, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masakatsu Tominaga, Masahiro Yoshida
  • Patent number: 11402956
    Abstract: A liquid crystal display device 10 includes pixel electrodes 11g that are spaced apart from each other, touch electrodes 14, each of which forms a capacitance with a finger, which is a position input body performing position input, to detect a position of input by the finger, which is the position input body, a touch line 15 that is sandwiched between adjacent pixel electrodes 11g and is connected to the touch electrodes 14, and at least two source lines 11j that extend parallel to the touch line 15. The source lines 11j transmit image signals to the pixel electrodes 11g. The source lines 11j are disposed such that one of the two pixel electrodes 11g is sandwiched between the touch line 15 and one of the two source lines 11j and another one of the two pixel electrodes 11g is sandwiched between another one of the two source lines 11j and the touch line 15.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: August 2, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masakatsu Tominaga, Masahiro Yoshida
  • Patent number: 11397496
    Abstract: A liquid crystal display device 10 includes pixel electrodes 11g that are spaced apart from each other, touch electrodes 14, each of which forms a capacitance with a finger, which is a position input body performing position input, to detect a position of input by the finger, which is the position input body, a touch line 15 that is sandwiched between adjacent pixel electrodes 11g and is connected to the touch electrodes 14, and at least two source lines 11j that extend parallel to the touch line 15. The source lines 11j transmit image signals to the pixel electrodes 11g. The source lines 11j are disposed such that one of the two pixel electrodes 11g is sandwiched between the touch line 15 and one of the two source lines 11j and another one of the two pixel electrodes 11g is sandwiched between another one of the two source lines 11j and the touch line 15.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: July 26, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masakatsu Tominaga, Masahiro Yoshida
  • Patent number: 11374037
    Abstract: The present invention reduces a circuit scale of a driving circuit while maintaining a characteristic of the driving circuit. In a driving circuit of the present invention, a transistor (TRc) including a gate electrode, a semiconductor film (HF), and first and second conductive electrodes (S, D) is provided on an upper side of the substrate. The driving circuit further includes a first conductive film (21) provided in a layer lower than the gate electrode, a second conductive film (22) that serves as the gate electrode, and a first capacitor (C1) defined between the first conductive film (21) and the second conductive film (22).
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: June 28, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Satoshi Horiuchi, Yoshihiro Asai, Isao Ogasawara, Masakatsu Tominaga, Yoshihito Hara
  • Patent number: 11314350
    Abstract: A display device including a position input function includes a pixel, a pixel line extending so as to pass transversely across a display area, a signal supply unit connected to the pixel line, a first position detecting electrode placed in a first area A1 beside the signal supply unit, a second position detecting electrode placed in a second area on a side opposite to the signal supply unit, a first position detecting line placed so as to overlap the pixel line in the first area and connected to the signal supply unit and the first touch electrode, and a second position detecting line placed so as to overlap the pixel line in such a manner as to lie astride the first area and the second area and connected to the signal supply unit and the second position detecting electrode.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: April 26, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masakatsu Tominaga, Masahiro Yoshida
  • Publication number: 20220076641
    Abstract: A liquid crystal display device includes a first liquid crystal display panel of a field sequential type, a second liquid crystal display panel of a color filter type disposed on a back face side of the first liquid crystal display panel, and a backlight configured to emit white light on a back face side of the second liquid crystal display panel.
    Type: Application
    Filed: September 3, 2021
    Publication date: March 10, 2022
    Inventors: MASAKATSU TOMINAGA, MASAHIRO YOSHIDA
  • Patent number: 11249574
    Abstract: A display device includes pixel electrodes, a first driver disposed outside a display area in which the pixel electrodes are arrayed, a touch sensor electrode which is disposed within the display area and to which a drive signal is applied from the first driver, a first wire which is disposed outside the display area and to which the drive signal is applied from the first driver, and a second wire disposed outside the display area. A predetermined electric potential is applied to the second wire, and the first wire is disposed between the second wire and the display area.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: February 15, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masakatsu Tominaga, Isao Ogasawara
  • Patent number: 11194202
    Abstract: A substrate for a display device includes image lines arranged in a first direction, scanning lines arranged in a second direction intersecting the first direction, pixel electrodes arranged in the first direction and the second direction, a first switching element, and a second switching element. Each of the pixel electrodes has an elongated shape extending in the first direction. The first switching element is connected to one of two scanning lines sandwiching the pixel electrodes, one of the pixel electrodes located at an even-numbered position from an end in the first direction, and one of the image lines adjacent to the even-numbered pixel electrode. The second switching element is connected to the other scanning line, one of the pixel electrodes located at an odd-numbered position from the end in the first direction, and one of the image lines adjacent to the odd-numbered pixel electrode.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: December 7, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masakatsu Tominaga
  • Publication number: 20210311578
    Abstract: A display device includes pixel electrodes, a first driver disposed outside a display area in which the pixel electrodes are arrayed, a touch sensor electrode which is disposed within the display area and to which a drive signal is applied from the first driver, a first wire which is disposed outside the display area and to which the drive signal is applied from the first driver, and a second wire disposed outside the display area. A predetermined electric potential is applied to the second wire, and the first wire is disposed between the second wire and the display area.
    Type: Application
    Filed: March 30, 2021
    Publication date: October 7, 2021
    Inventors: MASAKATSU TOMINAGA, ISAO OGASAWARA
  • Publication number: 20210294459
    Abstract: A liquid crystal display device 10 includes pixel electrodes 11g that are spaced apart from each other, touch electrodes 14, each of which forms a capacitance with a finger, which is a position input body performing position input, to detect a position of input by the finger, which is the position input body, a touch line 15 that is sandwiched between adjacent pixel electrodes 11g and is connected to the touch electrodes 14, and at least two source lines 11j that extend parallel to the touch line 15. The source lines 11j transmit image signals to the pixel electrodes 11g. The source lines 11j are disposed such that one of the two pixel electrodes 11g is sandwiched between the touch line 15 and one of the two source lines 11j and another one of the two pixel electrodes 11g is sandwiched between another one of the two source lines 11j and the touch line 15.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Inventors: Masakatsu Tominaga, Masahiro Yoshida
  • Publication number: 20210294458
    Abstract: A liquid crystal display device 10 includes pixel electrodes 11g that are spaced apart from each other, touch electrodes 14, each of which forms a capacitance with a finger, which is a position input body performing position input, to detect a position of input by the finger, which is the position input body, a touch line 15 that is sandwiched between adjacent pixel electrodes 11g and is connected to the touch electrodes 14, and at least two source lines 11j that extend parallel to the touch line 15. The source lines 11j transmit image signals to the pixel electrodes 11g. The source lines 11j are disposed such that one of the two pixel electrodes 11g is sandwiched between the touch line 15 and one of the two source lines 11j and another one of the two pixel electrodes 11g is sandwiched between another one of the two source lines 11j and the touch line 15.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Inventors: MASAKATSU TOMINAGA, Masahiro Yoshida
  • Patent number: 11112895
    Abstract: Provided is an active matrix substrate in which parasitic capacitance can be reduced and the display quality can be improved is provided, a touch-panel-equipped display device including the same, and a liquid crystal display device including the same. An active matrix substrate 1 includes a plurality of pixel electrodes 31; a plurality of counter electrodes provided so as to be opposed to the pixel electrodes 31, respectively, capacitors being formed between the counter electrodes 21 and the pixel electrodes 31; a conductive layer provided on a side opposite to the counter electrodes 21 with respect to the pixel electrodes 31; a first insulating layer 461; and a second insulating layer 462. The first insulating layer 461 is arranged between the pixel electrodes 31 and the conductive layer, and the second insulating layer 462 is arranged between the pixel electrodes 31 and the counter electrodes 21.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: September 7, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masakatsu Tominaga, Kuniko Maeno, Shingo Kamitani, Yoshihito Hara
  • Patent number: 11099442
    Abstract: A display device includes: a signal supply portion; a substrate having an extended outer shape portion, the substrate including a first region and a second region that has the extended outer shape portion; a first pixel wire connected to a first pixel in the first region in a display region and the signal supply portion; a second pixel wire connected to a second pixel in the second region in the display region; a relay wire disposed in the first region in the display region; a signal-supply-portion-side lead wire connected to the signal supply portion and an end portion of the relay wire, the end portion being at the signal supply portion side; and an opposite-side lead wire connected to end portions of the relay wire and the second pixel wire, the end portions being at an opposite side to the signal supply portion side.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: August 24, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masahiro Yoshida, Masakatsu Tominaga
  • Patent number: 11042255
    Abstract: A display device including a position input function includes pixel electrodes, position detection electrodes, a position detection line, and at least two signal lines. Each of the position detection electrodes is configured to form a capacitance with a position input body with which position input is performed to detect a position of the position input. The position detection line is sandwiched between two of the pixel electrodes adjacent to each other and connected to the position detection electrodes. The signal lines extend parallel to the position detection line to transmit image signals supplied to the pixel electrodes. The signal lines are disposed such that one of the two of the pixel electrodes is sandwiched between the position detection line and one of the signal lines and another one of the two of the pixel electrodes is sandwiched between the position detection line and another one of the signal lines.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: June 22, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masakatsu Tominaga, Masahiro Yoshida
  • Publication number: 20210132453
    Abstract: Provided is a liquid crystal display device in which it is unlikely that flicker would occur even if a polarity of a data voltage is inverted at every frame when a single color is displayed. The liquid crystal display device includes an active matrix substrate and a counter substrate. The active matrix substrate includes a plurality of pixels provided with pixel electrodes 16 arranged in matrix, and source lines SL to each of which a data voltage having either a positive polarity or a negative polarity is applied. The counter substrate includes color filters of a plurality of colors. The source lines are arranged in such a manner that two source lines (SLn, SLn+1/SLn+2, SLn+3) are provided with respect to each of pixel columns L1 and L2 each of which includes three columns of pixels. The polarity of the data voltage applied to the source line is inverted at every frame.
    Type: Application
    Filed: May 29, 2018
    Publication date: May 6, 2021
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: MASAKATSU TOMINAGA, MASAHIRO YOSHIDA