Patents by Inventor Kuniko Maeno
Kuniko Maeno 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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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: 10795225Abstract: Provided is a display device in which connection defects in terminal parts can be suppressed, and a method for producing the same. An active matrix substrate 1 of a display device includes gate lines, data lines arranged so as to intersect with the gate lines, pixel electrodes, counter electrodes forming capacitors between the same and the pixel electrodes, and signal lines that are connected with the counter electrodes and supply a driving signal for touch detection. Further, the active matrix substrate 1 includes a display driving circuit that supplies a control signal to at least either the gate lines or the data lines, and a touch detection driving circuit that supplies a driving signal for touch detection. Still further, the active matrix substrate 1 includes a plurality of terminal parts Ta to which the display driving circuit and the touch detection driving circuit are connected, and the terminal parts Ta have a common layer structure.Type: GrantFiled: June 7, 2017Date of Patent: October 6, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Yoshihito Hara, Masaki Maeda, Masakatsu Tominaga, Isao Ogasawara, Kuniko Maeno, Shingo Kamitani, Yasuhiro Mimura, Satoshi Horiuchi, Yoshihiro Asai
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Patent number: 10775660Abstract: Provided is a touch-panel-equipped display device that can improve the touch sensing accuracy, without decreases in the display quality, and a method for producing the same. A touch-panel-equipped display device includes an active matrix substrate 1. The active matrix substrate 1 includes a plurality of pixel electrodes 31; a plurality of counter electrodes 21 forming capacitors between the same and the pixel electrodes 31; a plurality of touch detection lines 22; a first insulating layer 461; and a second insulating layer 462. The touch detection lines 22 are connected with any of the counter electrodes 21, and supply a driving signal for touch detection to the counter electrodes 21 connected therewith. Between each pixel electrode 31 and the corresponding one of the counter electrodes 21, the second insulating layer 462 is arranged.Type: GrantFiled: June 7, 2017Date of Patent: September 15, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Yoshihito Hara, Masaki Maeda, Masakatsu Tominaga, Isao Ogasawara, Kuniko Maeno, Shingo Kamitani, Yasuhiro Mimura, Satoshi Horiuchi, Yoshihiro Asai
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Publication number: 20190265531Abstract: Provided is a touch-panel-equipped display device that can improve the touch sensing accuracy, without decreases in the display quality, and a method for producing the same. A touch-panel-equipped display device includes an active matrix substrate 1. The active matrix substrate 1 includes a plurality of pixel electrodes 31; a plurality of counter electrodes 21 forming capacitors between the same and the pixel electrodes 31; a plurality of touch detection lines 22; a first insulating layer 461; and a second insulating layer 462. The touch detection lines 22 are connected with any of the counter electrodes 21, and supply a driving signal for touch detection to the counter electrodes 21 connected therewith. Between each pixel electrode 31 and the corresponding one of the counter electrodes 21, the second insulating layer 462 is arranged.Type: ApplicationFiled: June 7, 2017Publication date: August 29, 2019Applicant: SHARP KABUSHIKI KAISHAInventors: YOSHIHITO HARA, MASAKI MAEDA, MASAKATSU TOMINAGA, ISAO OGASAWARA, KUNIKO MAENO, SHINGO KAMITANI, YASUHIRO MIMURA, SATOSHI HORIUCHI, YOSHIHIRO ASAI
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Publication number: 20190258105Abstract: Provided is a display device in which connection defects in terminal parts can be suppressed, and a method for producing the same. An active matrix substrate 1 of a display device includes gate lines, data lines arranged so as to intersect with the gate lines, pixel electrodes, counter electrodes forming capacitors between the same and the pixel electrodes, and signal lines that are connected with the counter electrodes and supply a driving signal for touch detection. Further, the active matrix substrate 1 includes a display driving circuit that supplies a control signal to at least either the gate lines or the data lines, and a touch detection driving circuit that supplies a driving signal for touch detection. Still further, the active matrix substrate 1 includes a plurality of terminal parts Ta to which the display driving circuit and the touch detection driving circuit are connected, and the terminal parts Ta have a common layer structure.Type: ApplicationFiled: June 7, 2017Publication date: August 22, 2019Inventors: YOSHIHITO HARA, MASAKI MAEDA, MASAKATSU TOMINAGA, ISAO OGASAWARA, KUNIKO MAENO, SHINGO KAMITANI, YASUHIRO MIMURA, SATOSHI HORIUCHI, YOSHIHIRO ASAI
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Publication number: 20190196638Abstract: 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: ApplicationFiled: June 7, 2017Publication date: June 27, 2019Inventors: MASAKATSU TOMINAGA, KUNIKO MAENO, SHINGO KAMITANI, YOSHIHITO HARA
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Patent number: 9726953Abstract: A TFT substrate (10) includes a substrate (10a); a TFT (11) supported by the substrate; a scanning line (12); a signal line (13); a first interlayer insulating layer (15) provided so as to cover the TFT; a pixel electrode (16) electrically connected to a drain electrode (11d) of the TFT; and a transparent storage capacitor electrode (17) provided so as to overlap at least a part of the pixel electrode. At least the first interlayer insulating layer has a contact hole (CH) formed therein through which the pixel electrode is electrically connected to the drain electrode. The scanning line includes a first area (R1) in which the scanning line is branched into two branched lines (12a). The contact hole is located between the two branched lines.Type: GrantFiled: March 15, 2013Date of Patent: August 8, 2017Assignee: Sharp Kabushiki KaishaInventors: Tomoo Furukawa, Kuniko Maeno, Junichi Morinaga, Masakatsu Tominaga, Katsuya Ogawa
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Patent number: 9523900Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, and a columnar spacer. The first substrate includes a pixel electrode, a TFT, and an interlayer insulating layer. The second substrate includes first, second and third color filters arranged in a delta arrangement. Each pixel has a substantially polygonal shape with n vertices (where n is an integer and n?8) or a substantially circular shape. The TFT and the columnar spacer are arranged in a first tricolor boundary region. A contact hole cut through the interlayer insulating layer is arranged in a second tricolor boundary region. Two of three pixels that define the first tricolor boundary region also define the second tricolor boundary region, but the remaining pixel is arranged at a different location.Type: GrantFiled: July 17, 2013Date of Patent: December 20, 2016Assignee: Sharp Kabushiki KaishaInventors: Junichi Morinaga, Kuniko Maeno, Masayuki Yamanaka
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Patent number: 9405160Abstract: An active matrix substrate includes a plurality of pixel electrodes arranged in a matrix; and a source wiring running in a column direction, wherein the source wiring includes a first side portion running along one side in a column direction of at least one pixel electrode of the plurality of pixel electrodes, a crossing portion running across the pixel electrode, and a second side portion running along another side in the column direction of the pixel electrode, the first side portion and the second side portion are connected to each other via the crossing portion, and at least one crossing portion is provided on each of at least two pixel electrodes aligned in the column direction out of the plurality of pixel electrodes.Type: GrantFiled: January 25, 2011Date of Patent: August 2, 2016Assignee: Sharp Kabushiki KaishaInventors: Hironobu Sawada, Junichi Morinaga, Kuniko Maeno, Katsushige Asada, Katsuhiro Mikumo, Tetsuya Fujikawa
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Publication number: 20150192834Abstract: This liquid crystal display device (100) includes a first substrate (10), a second substrate (20), a liquid crystal layer (30), and a columnar spacer (40). The first substrate includes a pixel electrode (11), a TFT (12), and an interlayer insulating layer (13). The second substrate (20) includes first, second and third color filters (22R, 22G and 22B) arranged in a delta arrangement. Each pixel has a substantially polygonal shape with n vertices (where n is an integer and n?8) or a substantially circular shape. The TFT and the columnar spacer are arranged in a first tricolor boundary region (r3a). A contact hole (13a) cut through the interlayer insulating layer is arranged in a second tricolor boundary region (r3b).Type: ApplicationFiled: July 17, 2013Publication date: July 9, 2015Inventors: Junichi Morinaga, Kuniko Maeno, Masayuki Yamanaka
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Publication number: 20150062523Abstract: A TFT substrate (10) includes a substrate (10a); a TFT (11) supported by the substrate; a scanning line (12); a signal line (13); a first interlayer insulating layer (15) provided so as to cover the TFT; a pixel electrode (16) electrically connected to a drain electrode (11d) of the TFT; and a transparent storage capacitor electrode (17) provided so as to overlap at least a part of the pixel electrode. At least the first interlayer insulating layer has a contact hole (CH) formed therein through which the pixel electrode is electrically connected to the drain electrode. The scanning line includes a first area (R1) in which the scanning line is branched into two branched lines (12a). The contact hole is located between the two branched lines.Type: ApplicationFiled: March 15, 2013Publication date: March 5, 2015Inventors: Tomoo Furukawa, Kuniko Maeno, Junichi Morinaga, Masakatsu Tominaga, Katsuya Ogawa
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Patent number: 8400597Abstract: Each of picture elements (14) has a plurality of alignment regions (R1, R2, R3, and R4), in each of which liquid crystal molecules contained in a liquid crystal layer are aligned in a direction that is different from those in the others of the plurality of alignment regions. Each of a plurality of scanning signal lines (32) and a border region (R11 and R12) between corresponding adjacent ones of the plurality of alignment regions (R1, R2, R3, and R4) at least partially overlap each other when viewed from above.Type: GrantFiled: March 27, 2009Date of Patent: March 19, 2013Assignee: Sharp Kabushiki KaishaInventors: Junichi Morinaga, Katsushige Asada, Masahiro Yoshida, Tetsuya Fujikawa, Katsuhiro Mikumo, Kuniko Maeno, Ryohki Itoh, Satoshi Horiuchi, Tatsuji Saitoh, Isao Ogasawara, Kazunori Tanimoto, Katsuhiro Okada, Toshiaki Fujihara, Masakatsu Tominaga
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Publication number: 20130038807Abstract: The present invention provides an active matrix substrate that enables to suppress variation in the pixel potential even if an alignment shift is present. The active matrix substrate of the present invention includes a plurality of pixel electrodes arranged in a matrix; and a source wiring running in a column direction, wherein the source wiring has a first side portion running along one side in a column direction of at least one pixel electrode of the plurality of pixel electrodes, a crossing portion running across the pixel electrode, and a second side portion running along another side in the column direction of the pixel electrode, the first side portion and the second side portion are connected to each other via the crossing portion, and at least one crossing portion is provided on each of at least two pixel electrodes aligned in the column direction out of the plurality of pixel electrodes.Type: ApplicationFiled: January 25, 2011Publication date: February 14, 2013Inventors: Hironobu Sawada, Junichi Morinaga, Kuniko Maeno, Katsushige Asada, Katsuhiro Mikumo, Tetsuya Fujikawa
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Publication number: 20110298774Abstract: An LUT fixedly stores correction values to compensate for a pull-in voltage in pixels in a liquid crystal panel. In at least one example embodiment, the display control unit outputs an input video signal Xa, a video signal Xp of a previous frame read from a frame memory, and a pixel polarity indicating a polarity of a pixel applied voltage on the pixel basis, and outputs a correction value read from the LUT to a data line driving circuit as a video signal Xb after correction. The data line driving circuit performs alternate current driving, based on the video signal Xb after correction. The LUT stores different correction values between when a positive polarity voltage is applied and when a negative polarity voltage is applied, for at least a part of combinations of values of the input video signal Xa and the video signal Xp of the previous frame.Type: ApplicationFiled: October 9, 2009Publication date: December 8, 2011Applicant: Sharp Kabushiki KaishaInventors: Takaharu Yamada, Yasunao Iwata, Kuniko Maeno, Yasuhiro Mimura, Tomoo Furukawa, Hideki Morii, Tetsuya Fujikawa
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Publication number: 20110075087Abstract: Each of picture elements (14) has a plurality of alignment regions (R1, R2, R3, and R4), in each of which liquid crystal molecules contained in a liquid crystal layer are aligned in a direction that is different from those in the others of the plurality of alignment regions. Each of a plurality of scanning signal lines (32) and a border region (R11 and R12) between corresponding adjacent ones of the plurality of alignment regions (R1, R2, R3, and R4) at least partially overlap each other when viewed from above.Type: ApplicationFiled: March 27, 2009Publication date: March 31, 2011Inventors: Junichi Morinaga, Katsushige Asada, Masahiro Yoshida, Tetsuya Fujikawa, Katsuhiro Mikumo, Kuniko Maeno, Ryohki Itoh, Satoshi Horiuchi, Tatsuji Saitoh, Isao Ogasawara, Kazunori Tanimoto, Katsuhiro Okada, Toshiaki Fujihara, Masakatsu Tominaga