Patents by Inventor Atsushi Ban
Atsushi Ban 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: 8405808Abstract: An active matrix substrate includes a substrate; scanning lines formed on the substrate; an insulating film covering the scanning lines; signal lines intersecting the scanning lines via the insulating film; switching elements formed on the substrate, each operating in response to a signal which is applied to the corresponding scanning line; and pixel electrodes each capable of being electrically connected to the corresponding signal line via the switching elements. The insulating film is a multilayer insulating film including a first insulating layer and a second insulating layer. The first insulating layer is formed of an insulating material containing an organic component, and the multilayer insulating film has a low-stack region in at least a portion of a region overlapping each switching element, the first insulating layer not being formed in the low-stack region.Type: GrantFiled: November 15, 2010Date of Patent: March 26, 2013Assignee: Sharp Kabushiki KaishaInventors: Wataru Nakamura, Atsushi Ban, Shoji Okazaki, Hiromitsu Katsui, Yoshihiro Okada
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Publication number: 20130027525Abstract: The liquid crystal display device (100) according to the present invention performs display in a stereoscopic display mode. In each of the plurality of pixels in the liquid crystal display device (100), left-eye image data and right-eye image data are alternately written every two successive vertical scanning periods. Each of the plurality of pixels exhibits the same polarity over the two vertical scanning periods in which left-eye image data is written, and exhibits the same polarity over the two vertical scanning periods in which the right-eye image data is written. Accordingly, the liquid crystal display device (100) performs stereoscopic display with suppressed display unevenness.Type: ApplicationFiled: April 7, 2011Publication date: January 31, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Masae Kitayama, Fumikazu Shimoshikiryoh, Atsushi Ban, Nobuyoshi Nagashima, Kazuyoshi Fujioka, Shinji Shinjo, Takayuki Nagaoka, Kenichi Hyohdoh
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Publication number: 20120293567Abstract: The present invention provides a display device having color display dots with improved brightness and being excellent in visibility. The display device of the present invention comprises a pixel including an odd number of and at least three first sub pixels; and second sub pixels having a higher brightness than the first sub pixels, wherein units of the odd number of first sub pixels are repeatedly arranged, the second sub pixels are sequentially arranged along the arrangement direction of the first sub pixels, and the second sub pixels and at least one of the first sub pixels are alternately arranged in a direction perpendicular to the arrangement direction of the first sub pixels.Type: ApplicationFiled: October 26, 2010Publication date: November 22, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Masayuki Katagami, Atsushi Ban, Toshihide Tsubata, Takehisa Yoshida
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Patent number: 8304297Abstract: An active matrix substrate includes base substrate, gate lines, data lines, thin-film transistors and pixel electrodes. The gate lines are formed on the base substrate. The data lines are formed over the gate lines. Each of the data lines crosses all of the gate lines with an insulating film interposed therebetween. The thin-film transistors are formed over the base substrate. Each of the thin-film transistors is associated with one of the gate lines and operates responsive to a signal on the associated gate line. Each of the pixel electrodes is associated with one of the data lines and one of the thin-film transistors and is electrically connectable to the associated data line by way of the associated thin-film transistor. Each of the pixel electrodes and the associated thin-film transistor are connected together by way of a conductive member.Type: GrantFiled: August 31, 2010Date of Patent: November 6, 2012Assignee: Sharp Kabushiki KaishaInventors: Yoshihiro Okada, Yuichi Saito, Shinya Yamakawa, Atsushi Ban, Masaya Okamoto, Hiroyuki Ohgami
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Publication number: 20120262633Abstract: An object is to provide a lighting device with improved workability in assembling a light guide plate, a display device and a television receiver using this lighting device. The lighting device according to the present invention has LEDs 16, an inclined surface 32A to which light from the LEDs 16 enter, a light exit surface 31 which emits the light, and a light guide plate 30 with the light exit surface having a rectangular shape in a planar view. The light guide plate 30 has the inclined surfaces 32A and 32B inclined in a form protruding outside the light guide plate 30 in one direction of the light exit surface 31, as both side surfaces in the one side direction of the light exit surface 31 get closer to the side of the light exit surface 31. The inclined surfaces 32A and 32B on the both sides have symmetrical shapes with each other. One of the inclined surfaces 32A and 32B is a light entrance surface and is facing a luminous surface 16a of the LED 16.Type: ApplicationFiled: December 1, 2010Publication date: October 18, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Takehisa Yoshida, Tomofumi Osaki, Tomohiro Kosaka, Atsushi Ban
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Publication number: 20120249610Abstract: In the present display device with each pixel being composed of subpixels of four or more colors, a backlight data processing portion sets a backlight source luminance to be high enough to compensate for a display luminance reduction caused by a maximum luminance adjustment portion (332) multiplying input pixel data for G by an adjustment gain, such that the value of the input pixel data for G does not exceed the maximum pixel value, after a G correction portion (331) corrects the input pixel data for G to compensate for a display luminance reduction due to the area of (subpixel) G being half of others. Thus, it is possible to realize high color reproducibility and a high luminance as realized by conventional liquid crystal display devices with a three-color, RGB, pixel configuration.Type: ApplicationFiled: May 19, 2010Publication date: October 4, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Masayuki Katagami, Atsushi Ban, Toshihide Tsubata, Takehisa Yoshida
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Publication number: 20120188494Abstract: The present invention provides a liquid crystal display panel provided with a laminate spacer including a plurality of primary color filters which can avoid deterioration of the display quality and improve the production efficiency. The liquid crystal display panel of the present invention comprises: an array substrate provided with a first electrode; a color filter substrate provided with a second electrode; and a liquid crystal layer sandwiched between the array substrate and the color filter substrate, wherein the color filter substrate further includes: four or more differently colored transparent layers, the colors of which include red, green, blue, and at least one of yellow and white; and a laminate spacer formed by the second electrode and at least two layers among the four or more differently colored transparent layers, and the laminate spacer is surrounded by the yellow or white transparent layer when viewed in a plan view.Type: ApplicationFiled: June 18, 2010Publication date: July 26, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Takehisa Yoshida, Masayuki Katagami, Atsushi Ban
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Patent number: 8228469Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: GrantFiled: September 20, 2011Date of Patent: July 24, 2012Assignee: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
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Publication number: 20120013826Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: ApplicationFiled: September 20, 2011Publication date: January 19, 2012Applicant: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
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Patent number: 8089574Abstract: An active matrix substrate includes a transistor, a pixel electrode, a drain lead electrode connected with the drain electrode of the transistor, and a contact hole connecting the drain lead electrode and the pixel electrode. A non-electrode through-bore portion is created on the drain lead electrode, and an opening of the contact hole crosses the through-bore portion. As a result, any changes or decreases in the contact area between the drain lead electrode and the pixel electrode may be prevented or reduced significantly, while the open area ratio can be improved.Type: GrantFiled: July 28, 2006Date of Patent: January 3, 2012Assignee: Sharp Kabushiki KaishaInventors: Toshihide Tsubata, Yoshihiro Okada, Atsushi Ban, Toshinori Sugihara
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Patent number: 8054423Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: GrantFiled: January 5, 2010Date of Patent: November 8, 2011Assignee: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shirrya Yamakawa, Atsushi Ban
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Patent number: 8045076Abstract: An active matrix substrate includes a transistor, a pixel electrode connected with one of the current-flowing electrodes of the transistor, a storage capacitor wiring, a lead wiring extending from one of the current-flowing electrodes of the transistor, and a repair wiring extending from the storage capacitor wiring. The repair wiring overlaps a portion of the lead wiring with an insulating layer interposed therebetween. As a result, TFT defects (for example, a short circuit between a source electrode and a drain electrode) can be repaired, and performance of fast display and reduction in electric power consumption can be realized.Type: GrantFiled: September 30, 2009Date of Patent: October 25, 2011Assignee: Sharp Kabushiki KaishaInventors: Toshihide Tsubata, Yoshihiro Okada, Atsushi Ban, Toshinori Sugihara
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Patent number: 7952667Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: GrantFiled: July 15, 2010Date of Patent: May 31, 2011Assignee: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yozo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
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Publication number: 20110057192Abstract: An active matrix substrate includes a substrate; scanning lines formed on the substrate; an insulating film covering the scanning lines; signal lines intersecting the scanning lines via the insulating film; switching elements formed on the substrate, each operating in response to a signal which is applied to the corresponding scanning line; and pixel electrodes each capable of being electrically connected to the corresponding signal line via the switching elements. The insulating film is a multilayer insulating film including a first insulating layer and a second insulating layer. The first insulating layer is formed of an insulating material containing an organic component, and the multilayer insulating film has a low-stack region in at least a portion of a region overlapping each switching element, the first insulating layer not being formed in the low-stack region.Type: ApplicationFiled: November 15, 2010Publication date: March 10, 2011Applicant: SHARP KABUSHIKI KAISHAInventors: Wataru NAKAMURA, Atsushi BAN, Shoji OKAZAKI, Hiromitsu KATSUI, Yoshihiro OKADA
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Patent number: 7880857Abstract: An active matrix substrate includes a transistor, a pixel electrode connected with one of the current-flowing electrodes of the transistor, a storage capacitor wiring, a lead wiring extending from one of the current-flowing electrodes of the transistor, and a repair wiring extending from the storage capacitor wiring. The repair wiring overlaps a portion of the lead wiring with an insulating layer interposed therebetween. As a result, TFT defects (for example, a short circuit between a source electrode and a drain electrode) can be repaired, and performance of fast display and reduction in electric power consumption can be realized.Type: GrantFiled: September 29, 2008Date of Patent: February 1, 2011Assignee: Sharp Kabushiki KaishaInventors: Toshihide Tsubata, Yoshihiro Okada, Atsushi Ban, Toshinori Sugihara
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Publication number: 20110003417Abstract: An active matrix substrate includes base substrate, gate lines, data lines, thin-film transistors and pixel electrodes. The gate lines are formed on the base substrate. The data lines are formed over the gate lines. Each of the data lines crosses all of the gate lines with an insulating film interposed therebetween. The thin-film transistors are formed over the base substrate. Each of the thin-film transistors is associated with one of the gate lines and operates responsive to a signal on the associated gate line. Each of the pixel electrodes is associated with one of the data lines and one of the thin-film transistors and is electrically connectable to the associated data line by way of the associated thin-film transistor. Each of the pixel electrodes and the associated thin-film transistor are connected together by way of a conductive member.Type: ApplicationFiled: August 31, 2010Publication date: January 6, 2011Applicant: Sharp Kabushiki KaishaInventors: Yoshihiro Okada, Yuichi Saito, Shinya Yamakawa, Atsushi Ban, Masaya Okamoto, Hiroyuki Ohgami
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Patent number: 7864281Abstract: An active matrix substrate includes a substrate; scanning lines formed on the substrate; an insulating film covering the scanning lines; signal lines intersecting the scanning lines via the insulating film; switching elements formed on the substrate, each operating in response to a signal which is applied to the corresponding scanning line; and pixel electrodes each capable of being electrically connected to the corresponding signal line via the switching elements. The insulating film is a multilayer insulating film including a first insulating layer and a second insulating layer. The first insulating layer is formed of an insulating material containing an organic component, and the multilayer insulating film has a low-stack region in at least a portion of a region overlapping each switching element, the first insulating layer not being formed in the low-stack region.Type: GrantFiled: August 23, 2005Date of Patent: January 4, 2011Assignee: Sharp Kabushiki KaishaInventors: Wataru Nakamura, Atsushi Ban, Shoji Okazaki, Hiromitsu Katsui, Yoshihiro Okada
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Publication number: 20100283950Abstract: A liquid crystal display device includes a first substrate; a second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizer provided on a surface of the first substrate which is on the opposite side to the liquid crystal layer; a second polarizer provided on a surface of the second substrate which is on the opposite side to the liquid crystal layer; a first phase compensation element provided between the first polarizer and the liquid crystal layer; and a second phase compensation element provided between the second polarizer and the liquid crystal layer. A plurality of pixel areas are provided for display. The first substrate includes at least one transmissive electrode, and the second substrate includes a reflective electrode region and a transmissive electrode region in correspondence with each of the plurality of pixel areas.Type: ApplicationFiled: July 15, 2010Publication date: November 11, 2010Applicant: Sharp Kabushiki KaishaInventors: Masumi Kubo, Yøzo Narutaki, Shogo Fujioka, Yuko Maruyama, Takayuki Shimada, Youji Yoshimura, Mikio Katayama, Yutaka Ishii, Shinya Yamakawa, Atsushi Ban
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Patent number: 7829391Abstract: An active matrix substrate includes base substrate, gate lines, data lines, thin-film transistors and pixel electrodes. The gate lines are formed on the base substrate. The data lines are formed over the gate lines. Each of the data lines crosses all of the gate lines with an insulating film interposed therebetween. The thin-film transistors are formed over the base substrate. Each of the thin-film transistors is associated with one of the gate lines and operates responsive to a signal on the associated gate line. Each of the pixel electrodes is associated with one of the data lines and one of the thin-film transistors and is electrically connectable to the associated data line by way of the associated thin-film transistor. Each of the pixel electrodes and the associated thin-film transistor are connected together by way of a conductive member.Type: GrantFiled: February 11, 2010Date of Patent: November 9, 2010Assignee: Sharp Kabushiki KaishaInventors: Yoshihiro Okada, Yuichi Saito, Shinya Yamakawa, Atsushi Ban, Masaya Okamoto, Hiroyuki Ohgami
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Publication number: 20100265410Abstract: In a liquid crystal display, a first data signal line and a second data signal line are provided for each pixel column. In at least one embodiment, in a case where every two pixels in the pixel column are paired, one of two pixels in each pair is connected with the first data signal line and the other of the two pixels is connected with the second data signal line, two scanning signal lines respectively connected with the two pixels are simultaneously selected during one horizontal scanning period so that signal potentials are written into the two pixels from the first data signal line and the second data signal line, respectively, during each horizontal scanning period, supply of the signal potentials to the first data signal line and the second data signal line is performed after supply of preliminary potentials to the first data signal line and the second data signal line.Type: ApplicationFiled: November 11, 2008Publication date: October 21, 2010Applicant: Sharp Kabushiki KaishaInventors: Toshinori Sugihara, Atsushi Ban, Toshihide Tsubata