Patents by Inventor Akihiro Shohraku

Akihiro Shohraku 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).

  • Patent number: 11703967
    Abstract: A display panel includes a common electrode formed in an upper layer above a data line, a first insulating layer covering the common electrode, a touch sensor line formed in an upper layer of the first insulating layer and in a first opening provided in the first insulating layer, and connected to the common electrode via the first opening, a second insulating layer covering the touch sensor line, and a pixel electrode formed in an upper layer of the second insulating layer. The first insulating layer is formed with a second opening between the common electrode and the pixel electrode. The second insulating layer is disposed in an interior of the second opening and formed with a recessed portion recessed downward into a portion above the second opening. At least a portion of the pixel electrode is disposed in the recessed portion of the second insulating layer.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: July 18, 2023
    Assignee: SHARP DISPLAY TECHNOLOGY CORPORATION
    Inventors: Katsushige Asada, Hajime Imai, Yoshihito Hara, Akihiro Shohraku, Isao Ogasawara, Yuki Yamashita
  • Publication number: 20220236820
    Abstract: A display panel includes a common electrode formed in an upper layer above a data line, a first insulating layer covering the common electrode, a touch sensor line formed in an upper layer of the first insulating layer and in a first opening provided in the first insulating layer, and connected to the common electrode via the first opening, a second insulating layer covering the touch sensor line, and a pixel electrode formed in an upper layer of the second insulating layer. The first insulating layer is formed with a second opening between the common electrode and the pixel electrode. The second insulating layer is disposed in an interior of the second opening and formed with a recessed portion recessed downward into a portion above the second opening. At least a portion of the pixel electrode is disposed in the recessed portion of the second insulating layer.
    Type: Application
    Filed: January 5, 2022
    Publication date: July 28, 2022
    Inventors: Katsushige ASADA, Hajime IMAI, Yoshihito HARA, Akihiro SHOHRAKU, Isao OGASAWARA, Yuki YAMASHITA
  • Patent number: 9389474
    Abstract: A liquid crystal panel (10) includes a plurality of pixels arranged in a matrix pattern having rows and columns. A plurality of Cs bus lines (43c) as storage capacitor lines are routed in the row direction of the liquid crystal panel (10). A plurality of branch lines (310) are routed in the column direction across a pixel region (10a). The branch lines (310) are connected to the Cs bus lines (43c) so that control signals are sent to storage capacitors from the branch lines (310) through the Cs bus lines (43c).
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: July 12, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masae Kawabata, Fumikazu Shimoshikiryoh, Yuki Yamashita, Akihiro Shohraku
  • Patent number: 9360718
    Abstract: 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: Grant
    Filed: March 22, 2013
    Date of Patent: June 7, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akane Sugisaka, Akihiro Shohraku
  • Patent number: 9076395
    Abstract: A liquid crystal display device (100) according to the present invention includes a plurality of pixels arrayed in a matrix, n number of the pixels (n is an even number of 4 or greater) being included in a color display pixel (CP). The liquid crystal display device includes an active matrix substrate (10) including a plurality of scanning lines (12) extending in a row direction and a plurality of signal lines (13) extending in a column direction; and a signal line driving circuit (3) that supplies, as a display signal, a gray scale voltage of a positive or negative polarity to each of the plurality of signal lines. The plurality of signal lines include a first type of signal line (13a) which does not intersect another signal line, and a second type of signal line (13b) which intersects a signal line adjacent thereto outside a display area in the state where an insulating film (16) is interposed therebetween.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: July 7, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akihiro Shohraku, Toshifumi Yagi, Masahiro Matsuda, Hidetoshi Nakagawa, Takuya Ohishi, Tomofumi Kubota, Kazushige Miyamoto, Haruhisa Suzuki
  • Patent number: 9019184
    Abstract: A liquid crystal display device includes a plurality of subpixels arranged in one column and n rows (where n is an even number ? four) within each pixel. In two of the pixels, which are adjacent to each other in the row direction, subpixels that represent the same color belong to the same row. If two of the pixels, which are adjacent to each other in the column direction, are called first and second pixels, respectively, a first half of the subpixels having a combination of first colors are located in odd-numbered rows in the first pixel and in even-numbered rows in the second pixel, while a second half of the subpixels having a combination of second colors, the second colors being different from the first colors, are located in even-numbered rows in the first pixel and in odd-numbered rows in the second pixel.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: April 28, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuki Yamashita, Akihiro Shohraku
  • Publication number: 20150002777
    Abstract: 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: Application
    Filed: March 22, 2013
    Publication date: January 1, 2015
    Inventors: Akane Sugisaka, Akihiro Shohraku
  • Publication number: 20140368762
    Abstract: A liquid crystal panel (10) includes a plurality of pixels arranged in a matrix pattern having rows and columns. A plurality of Cs bus lines (43c) as storage capacitor lines are routed in the row direction of the liquid crystal panel (10). A plurality of branch lines (310) are routed in the column direction across a pixel region (10a). The branch lines (310) are connected to the Cs bus lines (43c) so that control signals are sent to storage capacitors from the branch lines (310) through the Cs bus lines (43c).
    Type: Application
    Filed: September 3, 2014
    Publication date: December 18, 2014
    Inventors: Masae KAWABATA, Fumikazu SHIMOSHIKIRYOH, Yuki YAMASHITA, Akihiro SHOHRAKU
  • Patent number: 8854562
    Abstract: A liquid crystal panel (10) includes a plurality of pixels arranged in a matrix pattern having rows and columns. A plurality of Cs bus lines (43c) as storage capacitor lines are routed in the row direction of the liquid crystal panel (10). A plurality of branch lines (310) are routed in the column direction across a pixel region (10a). The branch lines (310) are connected to the Cs bus lines (43c) so that control signals are sent to storage capacitors from the branch lines (310) through the Cs bus lines (43c).
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: October 7, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masae Kawabata, Fumikazu Shimoshikiryoh, Yuki Yamashita, Akihiro Shohraku
  • Publication number: 20140176891
    Abstract: The present invention provides a liquid crystal display panel which facilitates laser repair for repairing defects even if an electrode facing a pixel electrode with an insulating film therebetween is a transparent electrode. The liquid crystal display panel of the present invention includes a first substrate having an insulating substrate, a thin film transistor, a scan signal line, a first light-shielding electrode, a first insulating film, a second light-shielding electrode, a second insulating film, a transparent electrode, a third insulating film, and a pixel electrode; a second substrate having an insulating substrate; and a liquid crystal layer sandwiched between the first substrate and the second substrate. The second light-shielding electrode is located between the thin film transistor and the pixel electrode and connected to the pixel electrode through a connecting portion formed through the second insulating film and the third insulating film.
    Type: Application
    Filed: August 3, 2012
    Publication date: June 26, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yuhko Hisada, Katsushige Asada, Tetsuya Fujikawa, Akihiro Shohraku, Yuki Yamashita
  • Patent number: 8576156
    Abstract: An auxiliary capacitor line driving circuit (5), provided in a surrounding region located around a display region (R1) in a liquid crystal display panel, generates auxiliary capacitor driving signals, and includes: first and second voltage trunk lines (VCS1, VCS2) which carry two different voltages, respectively; at least one control signal line (VCTRL1, VCTRL2) carrying one control signal; and a plurality of TFTs (T1, T2, T3, T4) each alternately supplying, to the respective auxiliary capacitor lines (CSn, CSn+1, and the like) in a given cycle, the two different voltages supplied to the auxiliary capacitor line driving circuit (5). Therefore, a liquid crystal display device employing multi-picture element drive method can be provided as a liquid crystal display device that achieves narrowing of a picture frame region as a non-display region and an external circuit board.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: November 5, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahiko Nakamizo, Akihiro Shohraku
  • Publication number: 20130250198
    Abstract: A liquid crystal display device according to the present invention includes: a plurality of pixels that are arranged in rows and columns so as to form a matrix pattern; and TFTs (TFT-A, TFT-B and TFT-C), source bus lines, gate bus lines and CS bus lines (CS-A and CS-B), which are associated with the respective pixels. Each pixel includes at least three subpixels (SP-A, SP-B and SP-C) with liquid crystal capacitors that are able to retain mutually different voltages. By supplying a signal (CS-A or CS-B) that makes two of the at least three subpixels display mutually different luminances at least at a certain grayscale tone from the source, gate and CS bus lines to each pixel, the at least three subpixels are able to display mutually different luminances.
    Type: Application
    Filed: May 9, 2013
    Publication date: September 26, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Fumikazu SHIMOSHIKIRYOH, Toshihide TSUBATA, Masanori TAKEUCHI, Masae KITAYAMA, Ikumi ITSUMI, Akihiro SHOHRAKU
  • Patent number: 8456583
    Abstract: A liquid crystal display device according to the present invention includes: a plurality of pixels that are arranged in rows and columns so as to form a matrix pattern; and TFTs (TFT-A, TFT-B and TFT-C), source bus lines, gate bus lines and CS bus lines (CS-A and CS-B), which are associated with the respective pixels. Each pixel includes at least three subpixels (SP-A, SP-B and SP-C) with liquid crystal capacitors that are able to retain mutually different voltages. By supplying a signal (CS-A or CS-B) that makes two of the at least three subpixels display mutually different luminances at least at a certain grayscale tone from the source, gate and CS bus lines to each pixel, the at least three subpixels are able to display mutually different luminances.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: June 4, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Fumikazu Shimoshikiryoh, Toshihide Tsubata, Masanori Takeuchi, Masae Kitayama, Ikumi Itsumi, Akihiro Shohraku
  • Patent number: 8421937
    Abstract: An active matrix substrate includes: storage capacitor line extended sections 118ax, 118qx, etc.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: April 16, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Akihiro Shohraku
  • Publication number: 20130070003
    Abstract: A liquid crystal display device (100) according to the present invention includes a plurality of pixels arrayed in a matrix, n number of the pixels (n is an even number of 4 or greater) being included in a color display pixel (CP). The liquid crystal display device includes an active matrix substrate (10) including a plurality of scanning lines (12) extending in a row direction and a plurality of signal lines (13) extending in a column direction; and a signal line driving circuit (3) that supplies, as a display signal, a gray scale voltage of a positive or negative polarity to each of the plurality of signal lines. The plurality of signal lines include a first type of signal line (13a) which does not intersect another signal line, and a second type of signal line (13b) which intersects a signal line adjacent thereto outside a display area in the state where an insulating film (16) is interposed therebetween.
    Type: Application
    Filed: June 2, 2011
    Publication date: March 21, 2013
    Inventors: Akihiro Shohraku, Toshifumi Yagi, Masahiro Matsuda, Hidetoshi Nakagawa, Takuya Ohishi, Tomofumi Kubota, Kazushige Miyamoto, Haruhisa Suzuki
  • Publication number: 20130009934
    Abstract: An auxiliary capacitor line driving circuit (5), provided in a surrounding region located around a display region (R1) in a liquid crystal display panel, generates auxiliary capacitor driving signals, and includes: first and second voltage trunk lines (VCS1, VCS2) which carry two different voltages, respectively; at least one control signal line (VCTRL1, VCTRL2) carrying one control signal; and a plurality of TFTs (T1, T2, T3, T4) each alternately supplying, to the respective auxiliary capacitor lines (CSn, CSn+1, and the like) in a given cycle, the two different voltages supplied to the auxiliary capacitor line driving circuit (5). Therefore, a liquid crystal display device employing multi-picture element drive method can be provided as a liquid crystal display device that achieves narrowing of a picture frame region as a non-display region and an external circuit board.
    Type: Application
    Filed: November 26, 2010
    Publication date: January 10, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masahiko Nakamizo, Akihiro Shohraku
  • Publication number: 20120299898
    Abstract: The liquid crystal display device (100) of this invention has pixels that are arranged in columns and rows to form a matrix pattern. The device includes: an active-matrix substrate (10) that includes pixel electrodes (11) provided for those pixels, scan lines (12) running in a row direction, and signal lines (13) running in a column direction; a counter substrate (20) facing the active-matrix substrate (10); and a liquid crystal layer (30) interposed between the active-matrix substrate (10) and the counter substrate (20). Each of the signal lines (13) includes, in an area given to each of pixel rows defined by those pixels, a first straight portion (13a) that overlaps with only one of two pixel electrodes (11) that are adjacent to the signal line (13), a second straight portion (13b) that overlaps with only the other pixel electrode (11), and a bent portion (13c) that connects the first and second straight portions (13a, 13b) together.
    Type: Application
    Filed: December 10, 2010
    Publication date: November 29, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yuki Yamashita, Akihiro Shohraku, Masanori Takeuchi
  • Publication number: 20120280896
    Abstract: In a liquid crystal display device according to the present invention, a plurality of subpixels are arranged in one column and n rows (where n is an even number that is equal to or greater than four) within each pixel (P). In two arbitrary ones of the pixels (P), which are adjacent to each other in the row direction, subpixels that represent the same color belong to the same row. If two arbitrary ones of the pixels (P), which are adjacent to each other in the column direction, are called first and second pixels (P1, P2), respectively, a half of the subpixels are located in odd-numbered rows in the first pixel (P1) and in even-numbered rows in the second pixel (P2), while the other half of the subpixels are located in even-numbered rows in the first pixel (P1) and in odd-numbered rows in the second pixel (P2).
    Type: Application
    Filed: January 4, 2011
    Publication date: November 8, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yuki Yamashita, Akihiro Shohraku
  • Publication number: 20120268707
    Abstract: In the liquid crystal display device (100) of the present invention, each picture element (P) includes first, second, third and fourth pixels (R, G, B, Y) that represent mutually different colors. The first and second pixels (R, B) are arranged alternately in each odd-numbered column of pixels. The third and fourth pixels (G, Y) are arranged alternately in each even-numbered column of pixels. The first and second pixels (R, B) belong to odd- and even-numbered rows, respectively, in a (4n+1)th column of pixels (PC4n+1), the third and fourth pixels (G, Y) belong to odd- and even-numbered rows, respectively, in a (4n+2)th column of pixels (PC4n+2) the second and first pixels (B, R) belong to odd- and even-numbered rows, respectively, in a (4n+3)th column of pixels (PC4n+3), and the fourth and third pixels (Y, G) belong to odd- and even-numbered rows, respectively, in a (4n+4)th column of pixels (PC4n+4).
    Type: Application
    Filed: December 21, 2010
    Publication date: October 25, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yuki Yamashita, Akihiro Shohraku
  • Publication number: 20120229739
    Abstract: A liquid crystal display device (100) according to the present invention includes a vertical alignment type liquid crystal layer (3); and a pair of optical alignment films (12, 22). A plurality of picture elements (R, G, B, Y) each include four liquid crystal domains (D1 through D4) in which tilt directions of liquid crystal molecules when a voltage is applied are different. The four liquid crystal domains are located in a matrix of 2 rowsĂ—2 columns. The pair of optical alignment films have such an alignment regulation force that causes an identical alignment pattern to appear in repetition in the liquid crystal layer along a first direction which is parallel to one of a row direction and a column direction, with 2n pixels (n is an integer of 1 or greater) being a minimum unit.
    Type: Application
    Filed: November 16, 2010
    Publication date: September 13, 2012
    Inventors: Iichiroh Inoue, Koichi Miyachi, Hidetoshi Nakagawa, Akihiro Shohraku