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).
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Publication number: 20230341978Abstract: 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: ApplicationFiled: June 28, 2023Publication date: October 26, 2023Inventors: MASAKATSU TOMINAGA, MASAHIRO YOSHIDA
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Patent number: 11740745Abstract: 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: GrantFiled: July 19, 2022Date of Patent: August 29, 2023Assignee: SHARP KABUSHIKI KAISHAInventors: Masakatsu Tominaga, Masahiro Yoshida
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Patent number: 11740525Abstract: 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: GrantFiled: December 9, 2022Date of Patent: August 29, 2023Assignee: Sharp Display Technology CorporationInventor: Masakatsu Tominaga
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Publication number: 20230185142Abstract: 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: ApplicationFiled: December 9, 2022Publication date: June 15, 2023Inventor: Masakatsu TOMINAGA
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Publication number: 20220350442Abstract: 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: ApplicationFiled: July 19, 2022Publication date: November 3, 2022Inventors: MASAKATSU TOMINAGA, MASAHIRO YOSHIDA
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Patent number: 11462179Abstract: 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: GrantFiled: September 3, 2021Date of Patent: October 4, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Masakatsu Tominaga, Masahiro Yoshida
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Patent number: 11402956Abstract: 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: GrantFiled: June 4, 2021Date of Patent: August 2, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Masakatsu Tominaga, Masahiro Yoshida
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Patent number: 11397496Abstract: 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: GrantFiled: June 4, 2021Date of Patent: July 26, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Masakatsu Tominaga, Masahiro Yoshida
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Patent number: 11374037Abstract: 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: GrantFiled: February 14, 2018Date of Patent: June 28, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Satoshi Horiuchi, Yoshihiro Asai, Isao Ogasawara, Masakatsu Tominaga, Yoshihito Hara
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Patent number: 11314350Abstract: 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: GrantFiled: October 16, 2020Date of Patent: April 26, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Masakatsu Tominaga, Masahiro Yoshida
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Publication number: 20220076641Abstract: 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: ApplicationFiled: September 3, 2021Publication date: March 10, 2022Inventors: MASAKATSU TOMINAGA, MASAHIRO YOSHIDA
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Patent number: 11249574Abstract: 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: GrantFiled: March 30, 2021Date of Patent: February 15, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Masakatsu Tominaga, Isao Ogasawara
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Patent number: 11194202Abstract: 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: GrantFiled: January 23, 2020Date of Patent: December 7, 2021Assignee: SHARP KABUSHIKI KAISHAInventor: Masakatsu Tominaga
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Publication number: 20210311578Abstract: 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: ApplicationFiled: March 30, 2021Publication date: October 7, 2021Inventors: MASAKATSU TOMINAGA, ISAO OGASAWARA
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Publication number: 20210294459Abstract: 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: ApplicationFiled: June 4, 2021Publication date: September 23, 2021Inventors: Masakatsu Tominaga, Masahiro Yoshida
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Publication number: 20210294458Abstract: 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: ApplicationFiled: June 4, 2021Publication date: September 23, 2021Inventors: MASAKATSU TOMINAGA, Masahiro Yoshida
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Patent number: 11112895Abstract: 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: GrantFiled: June 7, 2017Date of Patent: September 7, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Masakatsu Tominaga, Kuniko Maeno, Shingo Kamitani, Yoshihito Hara
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Patent number: 11099442Abstract: 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: GrantFiled: June 26, 2020Date of Patent: August 24, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Masahiro Yoshida, Masakatsu Tominaga
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Patent number: 11042255Abstract: 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: GrantFiled: March 9, 2018Date of Patent: June 22, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Masakatsu Tominaga, Masahiro Yoshida
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Publication number: 20210132453Abstract: 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: ApplicationFiled: May 29, 2018Publication date: May 6, 2021Applicant: SHARP KABUSHIKI KAISHAInventors: MASAKATSU TOMINAGA, MASAHIRO YOSHIDA