Patents by Inventor Masakatsu Kitani

Masakatsu Kitani 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: 11171162
    Abstract: A display device may include a substrate; a plurality of signal lines on the substrate; a plurality of scan lines on the substrate, the scan lines crossing the signal lines; and a plurality of thin film transistors at crossing positions of the scan lines and the signal lines. The scan lines include some first scan lines and some second scan lines. Each of the second scan lines has an end connected to a load element.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: November 9, 2021
    Assignee: Japan Display Inc.
    Inventors: Daichi Hosokawa, Naoki Miyanaga, Masakatsu Kitani
  • Publication number: 20210088862
    Abstract: According to one embodiment, a display device includes a first electrode, a second electrode, a first wiring electrically connected to the first electrode, a second wiring electrically connected to the second electrode, and a controller electrically connected to the first wiring and the second wiring, wherein the first electrode and the second electrode are located in a display area, the first electrode is connected to the first wiring in a position away from the controller than the second electrode, the second electrode is connected to the second wiring in a position closer to the controller than the first electrode, and a number of the first wiring being greater than a number of the second wiring.
    Type: Application
    Filed: December 7, 2020
    Publication date: March 25, 2021
    Applicant: Japan Display Inc.
    Inventors: Naoyuki OBINATA, Daichi HOSOKAWA, Masakatsu KITANI
  • Patent number: 10921667
    Abstract: According to one embodiment, a display device includes a first common electrode, a second common electrode separated from the first common electrode in a first direction and a first metal wiring extending in the first direction and overlapping the first common electrode and the second common electrode. The first metal wiring is located between the first common electrode and the second common electrode, and the first metal wiring includes a first end portion overlapping one of the first common electrode and the second common electrode.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: February 16, 2021
    Assignee: JAPAN DISPLAY INC.
    Inventors: Daichi Hosokawa, Naoyuki Obinata, Masakatsu Kitani
  • Patent number: 10890817
    Abstract: According to one embodiment, a display device includes a first electrode, a second electrode, a first wiring electrically connected to the first electrode, a second wiring electrically connected to the second electrode, and a controller electrically connected to the first wiring and the second wiring, wherein the first electrode and the second electrode are located in a display area, the first electrode is connected to the first wiring in a position away from the controller than the second electrode, the second electrode is connected to the second wiring in a position closer to the controller than the first electrode, and a number of the first wiring being greater than a number of the second wiring.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: January 12, 2021
    Assignee: Japan Display Inc.
    Inventors: Naoyuki Obinata, Daichi Hosokawa, Masakatsu Kitani
  • Publication number: 20200235129
    Abstract: A display device may include a substrate; a plurality of signal lines on the substrate; a plurality of scan lines on the substrate, the scan lines crossing the signal lines; and a plurality of thin film transistors at crossing positions of the scan lines and the signal lines. The scan lines include some first scan lines and some second scan lines. Each of the second scan lines has an end connected to a load element.
    Type: Application
    Filed: April 3, 2020
    Publication date: July 23, 2020
    Applicant: Japan Display Inc.
    Inventors: Daichi Hosokawa, Naoki Miyanaga, Masakatsu Kitani
  • Patent number: 10651207
    Abstract: A display device may include a substrate; a plurality of signal lines on the substrate; a plurality of scan lines on the substrate, the scan lines crossing the signal lines; and a plurality of thin film transistors at crossing positions of the scan lines and the signal lines. The scan lines include some first scan lines and some second scan lines. Each of the second scan lines has an end connected to a load element.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: May 12, 2020
    Assignee: Japan Display Inc.
    Inventors: Daichi Hosokawa, Naoki Miyanaga, Masakatsu Kitani
  • Publication number: 20190302557
    Abstract: According to one embodiment, a display device includes a first electrode, a second electrode, a first wiring electrically connected to the first electrode, a second wiring electrically connected to the second electrode, and a controller electrically connected to the first wiring and the second wiring, wherein the first electrode and the second electrode are located in a display area, the first electrode is connected to the first wiring in a position away from the controller than the second electrode, the second electrode is connected to the second wiring in a position closer to the controller than the first electrode, and a number of the first wiring being greater than a number of the second wiring.
    Type: Application
    Filed: March 25, 2019
    Publication date: October 3, 2019
    Applicant: Japan Display Inc.
    Inventors: Naoyuki OBINATA, Daichi Hosokawa, Masakatsu Kitani
  • Publication number: 20190278144
    Abstract: According to one embodiment, a display device includes a first common electrode, a second common electrode separated from the first common electrode in a first direction and a first metal wiring extending in the first direction and overlapping the first common electrode and the second common electrode. The first metal wiring is located between the first common electrode and the second common electrode, and the first metal wiring includes a first end portion overlapping one of the first common electrode and the second common electrode.
    Type: Application
    Filed: March 8, 2019
    Publication date: September 12, 2019
    Applicant: Japan Display Inc.
    Inventors: Daichi Hosokawa, Naoyuki Obinata, Masakatsu Kitani
  • Publication number: 20190096914
    Abstract: A display device may include a substrate; a plurality of signal lines on the substrate; a plurality of scan lines on the substrate, the scan lines crossing the signal lines; and a plurality of thin film transistors at crossing positions of the scan lines and the signal lines. The scan lines include some first scan lines and some second scan lines. Each of the second scan lines has an end connected to a load element.
    Type: Application
    Filed: September 17, 2018
    Publication date: March 28, 2019
    Applicant: Japan Display Inc.
    Inventors: Daichi HOSOKAWA, Naoki Miyanaga, Masakatsu Kitani
  • Patent number: 10054829
    Abstract: According to one embodiment, a liquid crystal display device includes a first scanning line, a third scanning line, a second scanning line, a first linear electrode, a second linear electrode and a third linear electrode. The first linear electrode is located between the first scanning line and the second scanning line, and extends in a third direction. The second linear electrode is located between the first scanning line and the second scanning line, and extends in a fourth direction. The third linear electrode is located between the second scanning line and the third scanning line, and comprises a portion extending in the fourth direction. The second linear electrode is electrically connected to the third linear electrode.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: August 21, 2018
    Assignee: Japan Display Inc.
    Inventors: Takeyuki Tsuruma, Masakatsu Kitani, Yoshihide Ohue
  • Patent number: 9971207
    Abstract: A liquid crystal display device related to one embodiment includes a gate line arranged along a first direction, a first pixel including a first switching element connected to the gate line, and a first pixel electrode connected to the first switching element via a first contact hole arranged in an insulation layer, a second pixel including a second switching element connected to the gate line, and a second pixel electrode connected to the second switching element via a second contact hole arranged in the insulation layer, a first spacer arranged in the fixed pixel, and a second spacer arranged in the second pixel, wherein the first spacer and the second spacer are arranged substantially on the same straight line in the first direction, and the first contact hole and the second contact hole are alternately arranged sandwiching a straight line connecting the first spacer and the second spacer.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: May 15, 2018
    Assignee: Japan Display Inc.
    Inventors: Hirofumi Funakoshi, Jin Hirosawa, Masakatsu Kitani, Daichi Hosokawa
  • Publication number: 20180120654
    Abstract: According to one embodiment, a liquid crystal display device includes a first scanning line, a third scanning line, a second scanning line, a first linear electrode, a second linear electrode and a third linear electrode. The first linear electrode is located between the first scanning line and the second scanning line, and extends in a third direction. The second linear electrode is located between the first scanning line and the second scanning line, and extends in a fourth direction. The third linear electrode is located between the second scanning line and the third scanning line, and comprises a portion extending in the fourth direction. The second linear electrode is electrically connected to the third linear electrode.
    Type: Application
    Filed: January 2, 2018
    Publication date: May 3, 2018
    Applicant: Japan Display Inc.
    Inventors: Takeyuki TSURUMA, Masakatsu KITANI, Yoshihide OHUE
  • Patent number: 9941412
    Abstract: According to one embodiment, a display device includes a first scanning line, a signal line, a second pixel electrode, a first pixel electrode, a second thin-film transistor, a first line and a second line. The first line is connected to the second pixel electrode, and extends through a region facing the first pixel electrode to the first scanning line side. The first line and a second semiconductor layer of the second thin-film transistor are provided on a first insulating film and are formed of a same material. The second line connects the first line and a fourth electrode of the second thin-film transistor.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: April 10, 2018
    Assignee: Japan Display Inc.
    Inventors: Takeyuki Tsuruma, Yoshihide Ohue, Masakatsu Kitani
  • Patent number: 9897871
    Abstract: According to one embodiment, a liquid crystal display device includes a first scanning line, a third scanning line, a second scanning line, a first linear electrode, a second linear electrode and a third linear electrode. The first linear electrode is located between the first scanning line and the second scanning line, and extends in a third direction. The second linear electrode is located between the first scanning line and the second scanning line, and extends in a fourth direction. The third linear electrode is located between the second scanning line and the third scanning line, and comprises a portion extending in the fourth direction. The second linear electrode is electrically connected to the third linear electrode.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: February 20, 2018
    Assignee: Japan Display Inc.
    Inventors: Takeyuki Tsuruma, Masakatsu Kitani, Yoshihide Ohue
  • Publication number: 20170285421
    Abstract: According to one embodiment, a liquid crystal display device includes a first scanning line, a third scanning line, a second scanning line, a first linear electrode, a second linear electrode and a third linear electrode. The first linear electrode is located between the first scanning line and the second scanning line, and extends in a third direction. The second linear electrode is located between the first scanning line and the second scanning line, and extends in a fourth direction. The third linear electrode is located between the second scanning line and the third scanning line, and comprises a portion extending in the fourth direction. The second linear electrode is electrically connected to the third linear electrode.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 5, 2017
    Applicant: Japan Display Inc.
    Inventors: Takeyuki TSURUMA, Masakatsu Kitani, Yoshihide Ohue
  • Publication number: 20170285379
    Abstract: According to one embodiment, a display device includes a first scanning line, a signal line, a second pixel electrode, a first pixel electrode, a second thin-film transistor, a first line and a second line. The first line is connected to the second pixel electrode, and extends through a region facing the first pixel electrode to the first scanning line side. The first line and a second semiconductor layer of the second thin-film transistor are provided on a first insulating film and are formed of a same material. The second line connects the first line and a fourth electrode of the second thin-film transistor.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 5, 2017
    Applicant: Japan Display Inc.
    Inventors: Takeyuki TSURUMA, Yoshihide OHUE, Masakatsu KITANI
  • Patent number: 9746729
    Abstract: According to one embodiment, there is a third column of third color (Blue) pixels and fourth (White) color pixels arranged alternately. The first set of a first (Red), a second (Green) and a third (Blue) color pixels along the first direction, and the second set of a first (Red), a second (Green) and a fourth (White) color pixels along the first direction are each defined as a composite color unit pixel. In the composite color unit pixels located at the first or second one along the first direction from composite color unit pixels to which color pixels of the third columns belongs, a connection pattern is designed that the pixels of the third columns are connected to the odd-numbered gate lines and the even-numbered gate lines, alternately, along the first direction.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: August 29, 2017
    Assignee: Japan Display Inc.
    Inventors: Hideyuki Takahashi, Masakatsu Kitani, Seiichi Sato, Masato Nakamura, Koji Yamamoto
  • Patent number: 9741296
    Abstract: According to one embodiment, three columns of a first and second columns of first and second color pixels, and a third column of third and fourth color pixels arranged alternately, are repeatedly provided along a first direction. The first set of a first, a second and a third color pixels along the first direction, and the second set of a first, a second and a fourth color pixels along the first direction are each defined as a composite color unit pixel. Pixel signals are supplied to the pixels of the third columns in a pattern that polarities of the pixel signals of the pixels of the third columns along the first direction are . . . , +, +, ?, ?, +, +, ?, ?, +, +, ?, ?, . . . .
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: August 22, 2017
    Assignee: Japan Display Inc.
    Inventors: Hideyuki Takahashi, Masakatsu Kitani, Seiichi Sato, Masato Nakamura, Koji Yamamoto
  • Patent number: 9733529
    Abstract: In an array substrate, a first pixel is arranged at one end of an active area, and a second pixel is arranged adjacent to the first pixel more inside of the active area than the first pixel. A common electrode extends to the first and second pixels, and an insulating layer is formed on the common electrode. First and second pixel electrodes are formed on the insulating layer in the first and second pixels. The pixel electrodes include electrode portions forming slits facing the common electrode. A second substrate includes a shield layer arranged outside the active area. The first pixel electrode is formed more widely than the second pixel electrode, and extends to outside of the active area. The first pixel electrode includes an extending portion extending to outside of the active area and facing the shield layer.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: August 15, 2017
    Assignee: Japan Display Inc.
    Inventors: Naomi Moriyama, Masakatsu Kitani
  • Publication number: 20170146846
    Abstract: A liquid crystal display device related to one embodiment includes a gate line arranged along a first direction, a first pixel including a first switching element connected to the gate line, and a first pixel electrode connected to the first switching element via a first contact hole arranged in an insulation layer, a second pixel including a second switching element connected to the gate line, and a second pixel electrode connected to the second switching element via a second contact hole arranged in the insulation layer, a first spacer arranged in the fixed pixel, and a second spacer arranged in the second pixel, wherein the first spacer and the second spacer are arranged substantially on the same straight line in the first direction, and the first contact hole and the second contact hole are alternately arranged sandwiching a straight line connecting the first spacer and the second spacer.
    Type: Application
    Filed: October 17, 2016
    Publication date: May 25, 2017
    Inventors: Hirofumi FUNAKOSHI, Jin HIROSAWA, Masakatsu KITANI, Daichi HOSOKAWA