Patents by Inventor Akane Sugisaka
Akane Sugisaka 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: 20240105139Abstract: Provided is a display device including gate drive circuits, a signal line connected to the gate drive circuit, a signal line connected to the gate drive circuit, a gate terminal, inspection terminals, and a connection line. The connection line connects the signal line and the signal line. The inspection terminal is disposed on the signal line. The inspection terminal is disposed on the signal line. The inspection terminals are terminals input with an inspection signal at the time of inspection.Type: ApplicationFiled: August 22, 2023Publication date: March 28, 2024Inventors: Satoshi HORIUCHI, Akane SUGISAKA, Seiya KAWAMORITA, Shinji MATSUBARA
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Patent number: 10854639Abstract: Provided is an active matrix substrate that includes a thin film transistor that has a first semiconductor layer and an ESD protection circuit. The ESD protection circuit includes a diode element. The diode element has a first electrode in a gate metal layer, a second semiconductor layer that overlaps a first electrode, and a second electrode and a third electrode electrically connected to a second semiconductor layer in a source metal layer. First and second electrodes of the diode element are electrically connected. The ESD protection circuit further includes a reserve diode structure. The reserve diode structure includes a fourth electrode in the gate metal layer and is in an electrically floating state, and a third semiconductor layer that is formed in the same layer as the first and second semiconductor layers and overlaps the fourth electrode with an insulation layer in between.Type: GrantFiled: April 15, 2019Date of Patent: December 1, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Masakatsu Tominaga, Masahiro Yoshida, Yasuhiro Mimura, Akane Sugisaka
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Publication number: 20190319046Abstract: Provided is an active matrix substrate that includes a thin film transistor that has a first semiconductor layer and an ESD protection circuit. The ESD protection circuit includes a diode element. The diode element has a first electrode in a gate metal layer, a second semiconductor layer that overlaps a first electrode, and a second electrode and a third electrode electrically connected to a second semiconductor layer in a source metal layer. First and second electrodes of the diode element are electrically connected. The ESD protection circuit further includes a reserve diode structure. The reserve diode structure includes a fourth electrode in the gate metal layer and is in an electrically floating state, and a third semiconductor layer that is formed in the same layer as the first and second semiconductor layers and overlaps the fourth electrode with an insulation layer in between.Type: ApplicationFiled: April 15, 2019Publication date: October 17, 2019Inventors: MASAKATSU TOMINAGA, MASAHIRO YOSHIDA, YASUHIRO MIMURA, AKANE SUGISAKA
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Patent number: 9818348Abstract: A color display pixel PCD in a liquid crystal display device (100) includes first through fourth pixels P1 through P4 arrayed in two rows by two columns, and first and second signal lines (13a, 13b) which are located in correspondence with each column of pixels and are supplied with signal voltages of polarities opposite to each other from a signal line driving circuit (30) in each vertical scanning period. A TFT (14) of one of the first and third pixel P1 and P3 is connected to the first signal line (13a), and a TFT (14) of the other pixel is connected to the second signal line (13b). A TFT (14) of one of the second and fourth pixel P2 and P4 is connected to the first signal line (13a), and a TFT (14) of the other pixel is connected to the second signal line (13b).Type: GrantFiled: January 27, 2011Date of Patent: November 14, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Masae Kitayama, Mitsuaki Hirata, Fumikazu Shimoshikiryoh, Kenichi Hyodo, Ikumi Itsumi, Yuki Yamashita, Akane Sugisaka
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Patent number: 9360718Abstract: The present invention provides a liquid crystal display panel capable of preventing the occurrence of display unevenness in the perimeter of the display area in the FFS mode. The liquid crystal display panel of the present invention includes a pair of substrates; a sealing material; and a liquid crystal layer enclosed by the pair of substrates and the sealing material.Type: GrantFiled: March 22, 2013Date of Patent: June 7, 2016Assignee: Sharp Kabushiki KaishaInventors: Akane Sugisaka, Akihiro Shohraku
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Patent number: 9046728Abstract: The present invention is to provide a liquid crystal display device which hardly causes image sticking even when there is a difference in the pixel areas. The liquid crystal display device of the present invention includes a pair of substrates, and a liquid crystal layer sandwiched between the pair of substrates, and is configured such that a pixel is formed by picture elements of a plurality of colors.Type: GrantFiled: October 26, 2010Date of Patent: June 2, 2015Assignee: Sharp Kabushiki KaishaInventors: Ikumi Itsumi, Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Yuki Yamashita, Akane Sugisaka, Fumikazu Shimoshikiryoh
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Patent number: 9019186Abstract: A liquid crystal display device (100) according to the present invention has a plurality of pixels that are arranged in columns and rows to form a matrix pattern and one color display pixel (P) is comprised of four or any other larger even number of pixels. The liquid crystal display device (100) of the present invention includes a plurality of source bus lines (13) which run in a column direction. The even number of pixels that form one color display pixel (P) include larger pixels with a relatively large area and smaller pixels with a relatively small area. Each set of pixels to be supplied with a signal voltage from an associated one of the plurality of source bus lines (13) has substantially the same total area as any other set of pixels. According to the present invention, in a liquid crystal display device in which a plurality of pixels that forms one color display pixel includes the larger and smaller pixels, generation of display unevenness that runs in the column direction can be minimized.Type: GrantFiled: January 24, 2011Date of Patent: April 28, 2015Assignee: Sharp Kabushiki KaishaInventors: Toshinori Sugihara, Toshihide Tsubata, Yuki Yamashita, Fumikazu Shimoshikiryoh, Mitsuaki Hirata, Kenichi Hyohdoh, Ikumi Itsumi, Akane Sugisaka, Masae Kitayama
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Patent number: 8994886Abstract: A liquid crystal display device (display device) 10 according to the present invention is provided with a display area AA that displays an image, and a non-display area NAA surrounding the display area AA. The non-display area NAA includes at least a backup wire 32 as a first wire and a source wire 24 as a second wire arranged on an upper side with respect to the backup wire 32 and intersecting with the backup wire 32. The backup wire 32 includes an intersecting portion 32CP intersecting with the source wire 24. The intersecting portion 32CP includes a crank portion 35 cranked at a side edge of the intersecting portion 32CP a second wire extending direction in which the source wire 24 extends.Type: GrantFiled: November 18, 2011Date of Patent: March 31, 2015Assignee: Sharp Kabushiki KaishaInventor: Akane Sugisaka
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Publication number: 20150002777Abstract: The present invention provides a liquid crystal display panel capable of preventing the occurrence of display unevenness in the perimeter of the display area in the FFS mode. The liquid crystal display panel of the present invention includes a pair of substrates; a sealing material; and a liquid crystal layer enclosed by the pair of substrates and the sealing material.Type: ApplicationFiled: March 22, 2013Publication date: January 1, 2015Inventors: Akane Sugisaka, Akihiro Shohraku
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Patent number: 8885131Abstract: A liquid crystal display device (100) according to the present invention includes a color display pixel D including pixels PA through PD arrayed in a matrix. The pixels PA through PD respectively include sub pixels SA1 through SD1and sub pixels SA2 through SD2. At least at an intermediate gray scale level, the luminance of the sub pixels SA2 through SD2 is higher than the luminance of the sub pixels SA1through SD1. The plurality of sub pixels S included in the pixels PA through PD are arrayed in a matrix. The sub pixel SA2 is adjacent to the sub pixel SB2 in the row direction, is adjacent to the sub pixel SC2 in the column direction, and is adjacent to the sub pixel SD2 in an oblique direction.Type: GrantFiled: January 27, 2011Date of Patent: November 11, 2014Assignee: Sharp Kabushiki KaishaInventors: Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Ikumi Itsumi, Yuki Yamashita, Akane Sugisaka, Fumikazu Shimoshikiryoh
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Patent number: 8749727Abstract: The present invention provides a liquid crystal display device which hardly causes image sticking in a panel in which Cgd gradation is performed, even when the pixel capacitances of the picture elements are different from one another.Type: GrantFiled: November 5, 2010Date of Patent: June 10, 2014Assignee: Sharp Kabushiki KaishaInventors: Ikumi Itsumi, Fumikazu Shimoshikiryoh, Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Yuki Yamashita, Akane Sugisaka
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Publication number: 20130235279Abstract: A liquid crystal display device (display device) 10 according to the present invention is provided with a display area AA that displays an image, and a non-display area NAA surrounding the display area AA. The non-display area NAA includes at least a backup wire 32 as a first wire and a source wire 24 as a second wire arranged on an upper side with respect to the backup wire 32 and intersecting with the backup wire 32. The backup wire 32 includes an intersecting portion 32CP intersecting with the source wire 24. The intersecting portion 32CP includes a crank portion 35 cranked at a side edge of the intersecting portion 32CP a second wire extending direction in which the source wire 24 extends.Type: ApplicationFiled: November 18, 2011Publication date: September 12, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Akane Sugisaka
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Publication number: 20130002992Abstract: A liquid crystal display device (100) according to the present invention includes a color display pixel D including pixels PA through PD arrayed in a matrix. The pixels PA through PD respectively include sub pixels SA1 through SD1 and sub pixels SA2 through SD2. At least at an intermediate gray scale level, the luminance of the sub pixels SA2 through SD2 is higher than the luminance of the sub pixels SA1 through SD1. The plurality of sub pixels S included in the pixels PA through PD are arrayed in a matrix. The sub pixel SA2 is adjacent to the sub pixel SB2 in the row direction, is adjacent to the sub pixel SC2 in the column direction, and is adjacent to the sub pixel SD2 in an oblique direction.Type: ApplicationFiled: January 27, 2011Publication date: January 3, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Ikumi Itsumi, Yuki Yamashita, Akane Sugisaka, Fumikazu Shimoshikiryoh
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Publication number: 20120326954Abstract: The present invention is to provide a liquid crystal display device which hardly causes image sticking even when there is a difference in the pixel areas. The liquid crystal display device of the present invention includes a pair of substrates, and a liquid crystal layer sandwiched between the pair of substrates, and is configured such that a pixel is formed by picture elements of a plurality of colors.Type: ApplicationFiled: October 26, 2010Publication date: December 27, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Ikumi Itsumi, Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Yuki Yamashita, Akane Sugisaka, Fumikazu Shimoshikiryoh
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Publication number: 20120320297Abstract: The present invention provides a liquid crystal display device which hardly causes image sticking in a panel in which Cgd gradation is performed, even when the pixel capacitances of the picture elements are different from one another.Type: ApplicationFiled: November 5, 2010Publication date: December 20, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Ikumi Itsumi, Fumikazu Shimoshikiryoh, Mitsuaki Hirata, Masae Kitayama, Kenichi Hyohdoh, Yuki Yamashita, Akane Sugisaka
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Publication number: 20120320026Abstract: A color display pixel PCD in a liquid crystal display device (100) includes first through fourth pixels P1 through P4 arrayed in two rows by two columns, and first and second signal lines (13a, 13b) which are located in correspondence with each column of pixels and are supplied with signal voltages of polarities opposite to each other from a signal line driving circuit (30) in each vertical scanning period. A TFT (14) of one of the first and third pixel P1 and P3 is connected to the first signal line (13a), and a TFT (14) of the other pixel is connected to the second signal line (13b). A TFT (14) of one of the second and fourth pixel P2 and P4 is connected to the first signal line (13a), and a TFT (14) of the other pixel is connected to the second signal line (13b).Type: ApplicationFiled: January 27, 2011Publication date: December 20, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Masae Kitayama, Mitsuaki Hirata, Fumikazu Shimoshikiryoh, Kenichi Hyodo, Ikumi Itsumi, Yuki Yamashita, Akane Sugisaka
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Publication number: 20120306732Abstract: A liquid crystal display device (100) according to the present invention has a plurality of pixels that are arranged in columns and rows to form a matrix pattern and one color display pixel (P) is comprised of four or any other larger even number of pixels. The liquid crystal display device (100) of the present invention includes a plurality of source bus lines (13) which run in a column direction. The even number of pixels that form one color display pixel (P) include larger pixels with a relatively large area and smaller pixels with a relatively small area. Each set of pixels to be supplied with a signal voltage from an associated one of the plurality of source bus lines (13) has substantially the same total area as any other set of pixels. According to the present invention, in a liquid crystal display device in which a plurality of pixels that forms one color display pixel includes the larger and smaller pixels, generation of display unevenness that runs in the column direction can be minimized.Type: ApplicationFiled: January 24, 2011Publication date: December 6, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Toshinori Sugihara, Toshihide Tsubata, Yuki Yamashita, Fumikazu Shimoshikiryoh, Mitsuaki Hirata, Kenichi Hyohdoh, Ikumi Itsumi, Akane Sugisaka, Masae Kitayama
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Publication number: 20120274889Abstract: The present invention is to provide a liquid crystal display device which hardly causes image sticking even when there is a difference in the picture element areas. The liquid crystal display device of the present invention includes a pair of substrates, and a liquid crystal layer sandwiched between the pair of substrates, and is configured such that a pixel is formed by picture elements of a plurality of colors.Type: ApplicationFiled: October 26, 2010Publication date: November 1, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Akane Sugisaka, Mitsuaki Hirata, Kenichi Hyohdoh, Masae Kitayama, Ikumi Itsumi, Yuki Yamashita, Fumikazu Shimoshikiryoh
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Patent number: 8223284Abstract: A liquid crystal device 10 of the present invention includes conductive films 81a, 81b for storage capacitors, i.e., a first conductive film 81a and a second conductive film 81b, which are connected to two adjacent pixel electrodes 44a, 44b, respectively, via contact sections 70a, 70b formed through a second insulating film 62. The part of a storage capacitor 83 located below the conductive films 81a, 81b is divided into a first capacitor line 83a arranged below the first conductive film 81a and a second capacitor line 83b arranged below the second conductive film 81b.Type: GrantFiled: July 29, 2008Date of Patent: July 17, 2012Assignee: Sharp Kabushiki KaishaInventors: Akane Sugisaka, Fumikazu Shimoshikiryoh
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Publication number: 20120019757Abstract: The MVA liquid crystal display device of the present invention includes a first domain regulating structure formed in a first substrate and a second domain regulating structure formed in a second substrate. The first domain regulating structure includes a first linear component extending in a first direction and a second linear component extending in a second direction different from the first direction by about 90°. The second domain regulating structure includes a third linear component extending in the first direction, and a fourth linear component extending in the second direction. When a voltage is applied across a liquid crystal layer, four domains in which the tilt directions of liquid crystal molecules are mutually different by about 90° are formed. An arbitrary pixel includes at least one first electrode formed in the first substrate and a second electrode formed in the second substrate.Type: ApplicationFiled: April 1, 2010Publication date: January 26, 2012Applicant: Sharp Kabushiki KaishaInventors: Fumikazu Shimoshikiryoh, Akihiro Shohraku, Yuki Yamashita, Akane Sugisaka, Masahiro Yoshida, Takahiro Sasaki