Patents by Inventor Kazushige Takagi

Kazushige Takagi 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).

  • Publication number: 20190250762
    Abstract: Provided is a display panel including: a plurality of pixel electrodes divided into a plurality of groups; and a plurality of common electrodes arranged at a ratio of one to a plurality of pixel electrodes included in one of the plurality of groups. Each of a plurality of sensor electrode lines overlaps with corresponding one of a plurality of data signal lines in plan view. The plurality of sensor electrode lines and each of the plurality of common electrodes overlap each other in plan view. The each of the plurality of common electrodes is electrically connected to the plurality of sensor electrode lines. At least one insulating film is formed between each of a region between the data signal lines and the sensor electrode lines, a region between the sensor electrode lines and the common electrodes, and a region between the common electrodes and the pixel electrodes.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 15, 2019
    Inventors: Toshiyuki AOYAMA, Tetsuo FUKAMI, Daisuke KAJITA, Kazushige TAKAGI
  • Patent number: 10318060
    Abstract: Provided is a display panel including: a plurality of pixel electrodes divided into a plurality of groups; and a plurality of common electrodes arranged at a ratio of one to a plurality of pixel electrodes included in one of the plurality of groups. Each of a plurality of sensor electrode lines overlaps with corresponding one of a plurality of data signal lines in plan view. The plurality of sensor electrode lines and each of the plurality of common electrodes overlap each other in plan view. The each of the plurality of common electrodes is electrically connected to the plurality of sensor electrode lines. At least one insulating film is formed between each of a region between the data signal lines and the sensor electrode lines, a region between the sensor electrode lines and the common electrodes, and a region between the common electrodes and the pixel electrodes.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: June 11, 2019
    Assignees: Panasonic Liquid Crystal Display Co., Ltd., Panasonic Corporation
    Inventors: Toshiyuki Aoyama, Tetsuo Fukami, Daisuke Kajita, Kazushige Takagi
  • Patent number: 10248253
    Abstract: Provided is a display panel including: a plurality of pixel electrodes divided into a plurality of groups; and a plurality of common electrodes arranged at a ratio of one to a plurality of pixel electrodes included in one of the plurality of groups. Each of a plurality of sensor electrode lines overlaps with corresponding one of a plurality of data signal lines in plan view. The plurality of sensor electrode lines and each of the plurality of common electrodes overlap each other in plan view. The each of the plurality of common electrodes is electrically connected to the plurality of sensor electrode lines. At least one insulating film is formed between each of a region between the data signal lines and the sensor electrode lines, a region between the sensor electrode lines and the common electrodes, and a region between the common electrodes and the pixel electrodes.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: April 2, 2019
    Assignees: Panasonic Liquid Crystal Display Co., Ltd., Panasonic Corporation
    Inventors: Toshiyuki Aoyama, Tetsuo Fukami, Daisuke Kajita, Kazushige Takagi
  • Publication number: 20180150180
    Abstract: Provided is a display panel including: a plurality of pixel electrodes divided into a plurality of groups; and a plurality of common electrodes arranged at a ratio of one to a plurality of pixel electrodes included in one of the plurality of groups. Each of a plurality of sensor electrode lines overlaps with corresponding one of a plurality of data signal lines in plan view. The plurality of sensor electrode lines and each of the plurality of common electrodes overlap each other in plan view. The each of the plurality of common electrodes is electrically connected to the plurality of sensor electrode lines. At least one insulating film is formed between each of a region between the data signal lines and the sensor electrode lines, a region between the sensor electrode lines and the common electrodes, and a region between the common electrodes and the pixel electrodes.
    Type: Application
    Filed: January 24, 2018
    Publication date: May 31, 2018
    Inventors: Toshiyuki AOYAMA, Tetsuo FUKAMI, Daisuke KAJITA, Kazushige TAKAGI
  • Publication number: 20180150181
    Abstract: Provided is a display panel including: a plurality of pixel electrodes divided into a plurality of groups; and a plurality of common electrodes arranged at a ratio of one to a plurality of pixel electrodes included in one of the plurality of groups. Each of a plurality of sensor electrode lines overlaps with corresponding one of a plurality of data signal lines in plan view. The plurality of sensor electrode lines and each of the plurality of common electrodes overlap each other in plan view. The each of the plurality of common electrodes is electrically connected to the plurality of sensor electrode lines. At least one insulating film is formed between each of a region between the data signal lines and the sensor electrode lines, a region between the sensor electrode lines and the common electrodes, and a region between the common electrodes and the pixel electrodes.
    Type: Application
    Filed: January 24, 2018
    Publication date: May 31, 2018
    Inventors: Toshiyuki AOYAMA, Tetsuo FUKAMI, Daisuke KAJITA, Kazushige TAKAGI
  • Patent number: 9910530
    Abstract: Provided is a display panel including: a plurality of pixel electrodes divided into a plurality of groups; and a plurality of common electrodes arranged at a ratio of one to a plurality of pixel electrodes included in one of the plurality of groups. Each of a plurality of sensor electrode lines overlaps with corresponding one of a plurality of data signal lines in plan view. The plurality of sensor electrode lines and each of the plurality of common electrodes overlap each other in plan view. The each of the plurality of common electrodes is electrically connected to the plurality of sensor electrode lines. At least one insulating film is formed between each of a region between the data signal lines and the sensor electrode lines, a region between the sensor electrode lines and the common electrodes, and a region between the common electrodes and the pixel electrodes.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: March 6, 2018
    Assignees: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., PANASONIC CORPORATION
    Inventors: Toshiyuki Aoyama, Tetsuo Fukami, Daisuke Kajita, Kazushige Takagi
  • Publication number: 20170254633
    Abstract: A proximity sensor includes: a substrate; a first shield electrode disposed on a front surface of the substrate; a first detection electrode disposed on the front surface of the substrate, in a region surrounding the first shield electrode, the first detection electrode being electrically insulated from the first shield electrode and having an outer perimeter that is polygonal; a drive unit supplied with power, connected to the first shield electrode and the first detection electrode, and configured to apply voltage that equalizes an electric potential of the first shield electrode and an electric potential of the first detection electrode; and a detection unit configured to detect a change in capacitance in the first detection electrode.
    Type: Application
    Filed: October 20, 2016
    Publication date: September 7, 2017
    Inventors: Satoru TANAHASHI, Manabu INOUE, Kazushige TAKAGI, Hiroyuki KADO
  • Publication number: 20160253023
    Abstract: Provided is a display panel including: a plurality of pixel electrodes divided into a plurality of groups; and a plurality of common electrodes arranged at a ratio of one to a plurality of pixel electrodes included in one of the plurality of groups. Each of a plurality of sensor electrode lines overlaps with corresponding one of a plurality of data signal lines in plan view. The plurality of sensor electrode lines and each of the plurality of common electrodes overlap each other in plan view. The each of the plurality of common electrodes is electrically connected to the plurality of sensor electrode lines. At least one insulating film is formed between each of a region between the data signal lines and the sensor electrode lines, a region between the sensor electrode lines and the common electrodes, and a region between the common electrodes and the pixel electrodes.
    Type: Application
    Filed: April 8, 2015
    Publication date: September 1, 2016
    Inventors: Toshiyuki AOYAMA, Tetsuo FUKAMI, Daisuke KAJITA, Kazushige TAKAGI
  • Publication number: 20160253024
    Abstract: Provided is a display panel including: a plurality of pixel electrodes divided into a plurality of groups; and a plurality of common electrodes arranged at a ratio of one to a plurality of pixel electrodes included in one of the plurality of groups. A plurality of sensor electrode lines are arranged in the same layer as a plurality of data signal lines. The plurality of sensor electrode lines and each of the plurality of common electrodes overlap each other in plan view. The each of the plurality of common electrodes is electrically connected to at least one of the plurality of sensor electrode lines. At least one insulating film is formed between each of a region between the data signal lines and the sensor electrode lines, a region between the sensor electrode lines and the common electrodes, and a region between the common electrodes and the pixel electrodes.
    Type: Application
    Filed: April 8, 2015
    Publication date: September 1, 2016
    Inventors: Toshiyuki AOYAMA, Tetsuo FUKAMI, Daisuke KAJITA, Kazushige TAKAGI
  • Patent number: 9417748
    Abstract: An input device which is a capacitive coupling type and can reduce visibility of wiring patterns of electrodes and interference fringes is provided. The input device is included in a display device including a plurality of pixels, and is configured to detect a contact position of a user. The input device includes a plurality of first electrodes, a plurality of second electrodes disposed so as to cross the first electrodes, and a plurality of third electrodes disposed between the second electrodes. Slits extending obliquely with respect to an extension direction of the second electrodes are formed between the third electrodes.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: August 16, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Akira Tokai, Hiroyuki Kado, Shigeo Kasahara, Naoki Kosugi, Toshiyuki Aoyama, Shuji Inoue, Kazushige Takagi, Manabu Inoue, Takahito Nakayama
  • Publication number: 20150331531
    Abstract: An input device according to the technology disclosed herein is one which is disposed on a user side of a display device, and includes a pair of coordinate detection electrodes that are disposed to face each other via a dielectric element. One of the pair of the coordinate detection electrodes is disposed on flexible film bonded on a surface on the user side of the display device. Electrodes of the display device serve as the other of the pair of the coordinate detection electrodes. Flexible film includes an extension part which extends from a detection region where the one of the coordinate detection electrodes is disposed. The extension part includes wiring parts which electrically couple to the coordinate detection electrodes and electrically and mechanically couple to connection parts that are disposed on the display device.
    Type: Application
    Filed: July 23, 2015
    Publication date: November 19, 2015
    Inventors: Toshiyuki AOYAMA, Shuji INOUE, Manabu INOUE, Shigeo KASAHARA, Hiroyuki KADO, Naoki KOSUGI, Kazushige TAKAGI, Akira TOKAI, Takahito NAKAYAMA
  • Publication number: 20150268765
    Abstract: An input device having a touch sensor function includes a plurality of first electrodes; a plurality of second electrodes which are disposed facing the plurality of first electrodes, each second electrode coupled capacitively with the first electrode to output a detection signal based on a touch operation, a plurality of third electrodes each disposed in a region between adjacent second electrodes, and a plurality of first connection sections which have a resistance value not lower than 1 M?, and electrically connect the plurality of third electrodes to a predetermined electrode set to a predetermined potential.
    Type: Application
    Filed: March 12, 2015
    Publication date: September 24, 2015
    Inventors: Takahito NAKAYAMA, Hiroyuki KADO, Toshiyuki AOYAMA, Shigeo KASAHARA, Naoki KOSUGI, Shuji INOUE, Manabu INOUE, Akira TOKAI, Kazushige TAKAGI
  • Publication number: 20150193057
    Abstract: An object of the present technology is to provide a display device that includes a capacitance coupling type input device capable of easily being incorporated into a display device. The display device includes an input device in which capacitive elements are formed between driving electrodes 11 and detection electrodes 12. The driving electrodes 11 and the detection electrodes 12 respectively are formed by electrically connecting, as groups, the driving electrodes 11 and the detection electrodes 12 that are formed in a plurality of pixels.
    Type: Application
    Filed: March 20, 2015
    Publication date: July 9, 2015
    Inventors: Naoki KOSUGI, Takahito NAKAYAMA, Manabu INOUE, Kazushige TAKAGI, Akira TOKAI, Shigeo KASAHARA, Hiroyuki KADO
  • Publication number: 20150193053
    Abstract: An input device according to the present disclosure is an input device arranged in a display device that sequentially applies a scanning signal to a plurality of scanning signal lines in one frame period to perform update of display, the input device comprising driving electrodes in quantity of N provided corresponding to the plurality of scanning signal lines, and a plurality of sensing electrodes arranged so as to intersect with the driving electrodes in quantity of N to form capacitive elements at intersection portions. In a touch detection period, a driving signal is sequentially applied to the driving electrodes in quantity of N, and a touch detection is performed based on a detection signal output from each of the plurality of sensing electrodes.
    Type: Application
    Filed: March 17, 2015
    Publication date: July 9, 2015
    Inventors: Kazushige TAKAGI, Manabu INOUE, Naoki KOSUGI, Takahito NAKAYAMA, Akira TOKAI, Shigeo KASAHARA, Hiroyuki KADO, Shuji INOUE, Toshiyuki AOYAMA
  • Publication number: 20150192814
    Abstract: An object of the present technology is to provide an input device as a capacitance coupling type input device capable of easily being incorporated into a display device. A liquid crystal display device of the present technology includes: a liquid crystal panel 1 having a plurality of pixel electrodes 19 and a common electrode provided so as to be opposed to the pixel electrodes 19, and updating a display by sequentially applying a scanning signal to TFTs that control application of a voltage to the pixel electrodes 19; and an input device having a plurality of driving electrodes 11, which are formed by dividing the common electrode of the liquid crystal panel 1 by providing a slit 25, and a plurality of detection electrodes 12 arranged so as to cross the driving electrodes 11, and capacitive elements formed between the driving electrodes 11 and the detection electrodes 12. A shielding electrode 26 is arranged at a position corresponding to the slit 25 in the periphery of the pixel electrodes 19.
    Type: Application
    Filed: March 20, 2015
    Publication date: July 9, 2015
    Inventors: Naoki KOSUGI, Manabu INOUE, Takahito NAKAYAMA, Shigeo KASAHARA, Hiroyuki KADO, Akira TOKAI, Kazushige TAKAGI
  • Publication number: 20150185927
    Abstract: The present invention provides a projected capacitive type input device that easily achieves a high resolution and a large size. The input device is provided in a display device that updates a display by sequentially applying a scanning signal to a plurality of scanning signal lines during one frame period. The input device includes a plurality of driving electrodes and a plurality of detection electrodes that are arranged so as to cross each other. The detection electrodes are arranged parallel to the scanning signal lines. A touch position is detected by applying a driving signal to the driving electrodes and detecting a detection signal output from each of the detection electrodes during a touch detection period.
    Type: Application
    Filed: March 13, 2015
    Publication date: July 2, 2015
    Inventors: Manabu INOUE, Hiroyuki KADO, Shigeo KASAHARA, Naoki KOSUGI, Akira TOKAI, Kazushige TAKAGI, Takahito NAKAYAMA
  • Publication number: 20150160763
    Abstract: An object of the present technology is to provide an input device that is a capacitance coupling type input device capable of easily being incorporated into a display device. The input device includes: a plurality of driving electrodes 11 and a plurality of detection electrodes 12 arranged so as to cross each other; and capacitive elements formed between the driving electrodes and the detection electrodes. The driving electrodes 11 and the detection electrodes 12 are each configured by electrically connecting a plurality of island-like electrode blocks using connection portions, and the electrode blocks of the driving electrodes and the electrode blocks of the detection electrodes are arranged so as not to be opposed to each other. The island-like electrode blocks arrayed in a row direction are connected electrically with each other using the connection portions having an area smaller than the area of the electrode blocks arrayed in the row direction.
    Type: Application
    Filed: February 20, 2015
    Publication date: June 11, 2015
    Inventors: Takahito NAKAYAMA, Hiroyuki KADO, Shigeo KASAHARA, Naoki KOSUGI, Manabu INOUE, Akira TOKAI, Kazushige TAKAGI
  • Publication number: 20150153767
    Abstract: An object of the present technology is to provide a display device that includes an input device capable of being easily incorporated into the display device as a capacitance coupling type input device. The display device is provided with an input device having a plurality of driving electrodes 11 formed by dividing a common electrode of a liquid crystal panel 1 via slits and detection electrodes 12 arranged to cross the driving electrodes 11, and a capacitive element is formed between respective ones of the driving electrodes 11 and the detection electrodes 12. The driving electrodes 11 and the detection electrodes 12 are constituted by electrically connecting a plurality of island-like electrode blocks 11a, 12a to each other via connection portions 11b, 12b, and the electrode blocks lla of the driving electrodes 11 and the electrode blocks 12a of the detection electrodes 12 are arranged not to be opposed to each other.
    Type: Application
    Filed: December 30, 2014
    Publication date: June 4, 2015
    Inventors: Takahito NAKAYAMA, Hiroyuki KADO, Shigeo KASAHARA, Naoki KOSUGI, Manabu INOUE, Akira TOKAI, Kazushige TAKAGI
  • Publication number: 20150116267
    Abstract: An input device for detecting a touch operation performed by a user includes a plurality of driving electrodes, and a plurality of detection electrodes which are disposed intersecting with the driving electrodes. The input device detects a position touched by a user by applying a driving signal to the driving electrode and detecting a detection signals outputted from each of the detection electrodes. The detection signal varies with a change in capacitance at an intersection between the driving electrode and the detection electrode. The input device further includes a plurality of signal correctors, each of which is provided for each driving electrode. The signal corrector is configured to add a correction signal to the driving signal in a rising portion and/or a falling portion of the driving signal and apply the driving signal added with the correction signal to the driving electrode.
    Type: Application
    Filed: October 30, 2014
    Publication date: April 30, 2015
    Inventors: Shuji INOUE, Hiroyuki KADO, Naoki KOSUGI, Toshiyuki AOYAMA, Shigeo KASAHARA, Manabu INOUE, Akira TOKAI, Kazushige TAKAGI, Takahito NAKAYAMA
  • Publication number: 20150116266
    Abstract: An input device that can prevent a reduction in the accuracy of detection of a contact position, even when a display device operates in a PSR mode, is provided. The input device is provided in a display device configured to operate in either a first mode or a second mode and is configured to detect a contact position of a user. The input device includes a plurality of driving electrodes and a touch controller. The touch controller is configured to determine the operation mode of the display device, configured to generate touch driving signal based on a result of the determination, and configured to apply the generated touch driving signals to the driving electrodes.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Inventors: Manabu INOUE, Hiroyuki KADO, Shigeo KASAHARA, Naoki KOSUGI, Toshiyuki AOYAMA, Shuji INOUE, Kazushige TAKAGI, Akira TOKAI, Takahito NAKAYAMA