Patents by Inventor Naoki Andou

Naoki Andou 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: 10991335
    Abstract: A display device according to the present disclosure includes: pixels arranged in a matrix; a data line group that includes a pair of data lines for each pixel column; a data line drive circuit that supplies a positive-phase data signal to one of the pair of data lines, and a negative-phase data signal to the other of the pair of data lines; and an auxiliary drive circuit that is provided for each pair of data lines, and that processes the positive-phase data signal and the negative-phase data signal, in which the auxiliary drive circuit has a dead zone in a region where there is no difference between a positive-phase potential and a negative-phase potential, or where the difference in potential is smaller than a predetermined value. An electronic apparatus according to the present disclosure includes a display device having the configuration described above.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: April 27, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Toshihiko Orii, Hiroshi Nakao, Naoki Andou, Kazuhiro Takeda, Keiko Kawaguchi
  • Publication number: 20200312263
    Abstract: A display device according to the present disclosure includes: pixels arranged in a matrix; a data line group that includes a pair of data lines for each pixel column; a data line drive circuit that supplies a positive-phase data signal to one of the pair of data lines, and a negative-phase data signal to the other of the pair of data lines; and an auxiliary drive circuit that is provided for each pair of data lines, and that processes the positive-phase data signal and the negative-phase data signal, in which the auxiliary drive circuit has a dead zone in a region where there is no difference between a positive-phase potential and a negative-phase potential, or where the difference in potential is smaller than a predetermined value. An electronic apparatus according to the present disclosure includes a display device having the configuration described above.
    Type: Application
    Filed: October 16, 2018
    Publication date: October 1, 2020
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Toshihiko ORII, Hiroshi NAKAO, Naoki ANDOU, Kazuhiro TAKEDA, Keiko KAWAGUCHI
  • Patent number: 9747857
    Abstract: A display device includes: data-line pairs arranged side by side along a first direction; gate lines arranged side by side along a second direction; a display section including pixels each disposed at an intersection of a data-line pair and a gate line and connected to one or both of the data-line pair; a data-line drive circuit supplying a positive-phase data signal to one of the data-line pair and a negative-phase data signal to the other, and allowing the data-line pair to stay in a high-impedance state before writing of an image signal to the pixels; and a short circuit putting the data-line pair in a short-circuit state while the data-line pair stays in the high-impedance state, and then releasing the short-circuit state Following the release of the short-circuit state, the positive-phase data signal or/and the negative-phase data signal are written into the pixel as the image signal.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: August 29, 2017
    Assignee: Sony Corporation
    Inventors: Naoki Andou, Kouzi Tsukamoto, Takamitsu Urakawa, Kazuhiro Takeda, Keiko Kawaguchi, Taizou Hoshihara, Kouichi Hashikaki
  • Patent number: 9430971
    Abstract: An electro-optical unit includes pixels provided correspondingly to portions where a plurality of pairs of data lines and a plurality of gate lines intersect with each other. Each of the pixels has an electro-optical device and a pixel circuit. The pixel circuit has a holding circuit connected with one of the plurality of pairs of data lines and one of the plurality of gate lines, and a selection circuit connected with an output of the holding circuit and the electro-optical device. The holding circuit is capable of sampling and holding a first image signal to be applied to one of the pair of the data lines, while sampling and holding a second image signal to be applied to the other of the pair of the data lines. The selection circuit is capable of outputting the first image signal and the second image signal to the electro-optical device selectively.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: August 30, 2016
    Assignee: SONY CORPORATION
    Inventors: Kouzi Tsukamoto, Kazuhiro Takeda, Takamitsu Urakawa, Naoki Andou, Kazutoshi Ono
  • Publication number: 20150235604
    Abstract: A display device includes: data-line pairs arranged side by side along a first direction; gate lines arranged side by side along a second direction; a display section including pixels each disposed at an intersection of a data-line pair and a gate line and connected to one or both of the data-line pair; a data-line drive circuit supplying a positive-phase data signal to one of the data-line pair and a negative-phase data signal to the other, and allowing the data-line pair to stay in a high-impedance state before writing of an image signal to the pixels; and a short circuit putting the data-line pair in a short-circuit state while the data-line pair stays in the high-impedance state, and then releasing the short-circuit state Following the release of the short-circuit state, the positive-phase data signal or/and the negative-phase data signal are written into the pixel as the mage signal.
    Type: Application
    Filed: April 24, 2015
    Publication date: August 20, 2015
    Inventors: Naoki Andou, Kouzi Tsukamoto, Takamitsu Urakawa, Kazuhiro Takeda, Keiko Kawaguchi, Taizou Hoshihara, Kouichi Hashikaki
  • Patent number: 9024922
    Abstract: A display device includes: data-line pairs arranged side by side along a first direction; gate lines arranged side by side along a second direction; a display section including pixels each disposed at an intersection of a data-line pair and a gate line and connected to one or both of the data-line pair; a data-line drive circuit supplying a positive-phase data signal to one of the data-line pair and a negative-phase data signal to the other, and allowing the data-line pair to stay in a high-impedance state before writing of an image signal to the pixels; and a short circuit putting the data-line pair in a short-circuit state while the data-line pair stays in the high-impedance state, and then releasing the short-circuit state Following the release of the short-circuit state, the positive-phase data signal or/and the negative-phase data signal are written into the pixel as the mage signal.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: May 5, 2015
    Assignee: Sony Corporation
    Inventors: Naoki Andou, Kouzi Tsukamoto, Takamitsu Urakawa, Kazuhiro Takeda, Keiko Kawaguchi, Taizou Hoshihara, Kouichi Hashikaki
  • Publication number: 20130076706
    Abstract: A display device includes: data-line pairs arranged side by side along a first direction; gate lines arranged side by side along a second direction; a display section including pixels each disposed at an intersection of a data-line pair and a gate line and connected to one or both of the data-line pair; a data-line drive circuit supplying a positive-phase data signal to one of the data-line pair and a negative-phase data signal to the other, and allowing the data-line pair to stay in a high-impedance state before writing of an image signal to the pixels; and a short circuit putting the data-line pair in a short-circuit state while the data-line pair stays in the high-impedance state, and then releasing the short-circuit state Following the release of the short-circuit state, the positive-phase data signal or/and the negative-phase data signal are written into the pixel as the mage signal.
    Type: Application
    Filed: September 12, 2012
    Publication date: March 28, 2013
    Applicant: SONY CORPORATION
    Inventors: Naoki Andou, Kouzi Tsukamoto, Takamitsu Urakawa, Kazuhiro Takeda, Keiko Kawaguchi, Taizou Hoshihara, Kouichi Hashikaki
  • Publication number: 20130076725
    Abstract: An electro-optical unit includes pixels provided correspondingly to portions where a plurality of pairs of data lines and a plurality of gate lines intersect with each other. Each of the pixels has an electro-optical device and a pixel circuit. The pixel circuit has a holding circuit connected with one of the plurality of pairs of data lines and one of the plurality of gate lines, and a selection circuit connected with an output of the holding circuit and the electro-optical device. The holding circuit is capable of sampling and holding a first image signal to be applied to one of the pair of the data lines, while sampling and holding a second image signal to be applied to the other of the pair of the data lines. The selection circuit is capable of outputting the first image signal and the second image signal to the electro-optical device selectively.
    Type: Application
    Filed: September 7, 2012
    Publication date: March 28, 2013
    Applicant: SONY CORPORATION
    Inventors: Kouzi Tsukamoto, Kazuhiro Takeda, Takamitsu Urakawa, Naoki Andou, Kazutoshi Ono