Patents by Inventor Akira Tokai

Akira Tokai 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: 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: 20150277485
    Abstract: In an input device, first electrodes are arranged on a first transparent substrate, and second electrodes are arranged on a second transparent substrate coupled to the first transparent with second electrodes intersecting with first electrodes. A control unit detects electrostatic capacitance. The first transparent substrate includes a first joint region where the no first electrodes are arranged and a plurality of regions into which a whole region of the first transparent substrate is segmented by the first joint region. The second transparent substrate includes a second joint region where no second electrodes are arranged and a plurality of regions into which a whole region of the second transparent substrate is segmented by the second joint region. On the coupled transparent substrates, the first and second joint regions are arranged such that the first joint region and the second joint region do not overlap with each other partially or wholly.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Inventors: Naoki KOSUGI, Akira TOKAI, Hiroyuki KADO, Takashi KITADA, Yutaka HISAMOTO, Hiroaki KATO
  • 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: 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
  • 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: 20150116247
    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 to generate mode signal giving notice of the current operation mode and is configured to detect a contact position of a user. The input device includes a plurality of driving electrodes and touch controller. Touch controller is configured to determine the operation mode of display device based on mode signal, to generate touch driving signal based on a result of the determination, and 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
  • Publication number: 20150109248
    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: Application
    Filed: October 22, 2014
    Publication date: April 23, 2015
    Inventors: Akira TOKAI, Hiroyuki KADO, Shigeo KASAHARA, Naoki KOSUGI, Toshiyuki AOYAMA, Shuji INOUE, Kazushige TAKAGI, Manabu INOUE, Takahito NAKAYAMA
  • Publication number: 20150103048
    Abstract: An object of the present technology is to provide a display device that includes an input device capable of easily being incorporated into the display device as a capacitance coupling type input device. The display device includes: a display panel having a plurality of pixel electrodes 19 and updating a display by sequentially applying a scanning signal to a TFT that controls application of a voltage to the pixel electrodes 19; and an input device having one of electrodes arranged in the periphery of the pixel electrode 19 of the display panel and the other electrode arranged so as to cross the one of electrodes, wherein a capacitive element is formed between the one of electrodes and the other electrode. The one of electrodes arranged in the periphery of the pixel electrode 19 is composed of a lower layer portion 27a made of a metallic material, and an upper layer portion 27b covering the lower layer portion 27a and made of the same material as the pixel electrode 19.
    Type: Application
    Filed: December 19, 2014
    Publication date: April 16, 2015
    Inventors: Takahito NAKAYAMA, Hiroyuki KADO, Shigeo KASAHARA, Naoki KOSUGI, Manabu INOUE, Akira TOKAI, Kazushige TAKAGI
  • Publication number: 20150103278
    Abstract: An object of the present technology is to provide a liquid crystal display device that includes a capacitance coupling type input device capable of easily being incorporated into the display device. The liquid crystal display device includes a liquid crystal panel and an input device. The liquid crystal panel includes: a TFT substrate having a plurality of pixel electrodes and a common electrode provided so as to be opposed to the pixel electrodes, and further includes a switching element for controlling application of a voltage to the pixel electrodes; and a counter substrate arranged so as to be opposed to the TFT substrate, and having a configuration in which color filters of at least three primary colors are arranged at positions corresponding to the pixel electrodes and a light-shielding portion is arranged between the color filters.
    Type: Application
    Filed: December 19, 2014
    Publication date: April 16, 2015
    Inventors: Manabu INOUE, Hiroyuki KADO, Shigeo KASAHARA, Naoki KOSUGI, Akira TOKAI, Kazushige TAKAGI, Takahito NAKAYAMA
  • Publication number: 20150049061
    Abstract: An object of the present technology is to improve the detection accuracy of a capacitance coupling type input device at a time of touch operation. An input device includes: a plurality of driving electrodes and a plurality of detection electrodes crossing each other; and capacitive elements formed in respective crossed portions between the driving electrodes and the detection electrodes.
    Type: Application
    Filed: October 31, 2014
    Publication date: February 19, 2015
    Inventors: Kazushige TAKAGI, Manabu INOUE, Naoki KOSUGI, Takahito NAKAYAMA, Akira TOKAI, Shigeo KASAHARA, Hiroyuki KADO
  • Publication number: 20150042616
    Abstract: It is an object of the present invention to enhance detection accuracy during a touch operation in a capacitance coupling type input device. The input device includes a plurality of driving electrodes and a plurality of detection electrodes crossing each other, and capacitive elements formed in respective crossed portions between the driving electrodes and the detection electrodes. During a touch detection period, a driving signal is applied to the driving electrodes on a line block basis of scanning signal lines, and touch is detected based on a detection signal output from each of the detection electrodes, and the touch detection period is provided in a display update period in a horizontal scanning period of a display apparatus. Further, a driving signal to be applied to the driving electrodes is applied to a selected line block of the display apparatus to which the scanning signal is not being applied.
    Type: Application
    Filed: October 27, 2014
    Publication date: February 12, 2015
    Inventors: Kazushige TAKAGI, Manabu INOUE, Naoki KOSUGI, Takahito NAKAYAMA, Akira TOKAI, Shigeo KASAHARA, Hiroyuki KADO
  • Patent number: 8507793
    Abstract: A structure of a panel which can be thinned down to about a panel thickness of a PDP and a manufacturing method thereof are provided. A gas filling hole is provided to a surface of a rear glass substrate of a PDP, the surface coming in contact with a front glass substrate of the PDP. Vacuuming and filling of a discharge gas are performed through the gas filling hole. After filling of the discharge gas, a mechanism for lifting solder iron up and down and supplying solder provided inside a chamber inserts a tip of an ultrasonic soldering iron into the gas filling hole to start supplying a solder which is a material for a plug sealant. When a series of forming steps of the plug sealant are finished, the ultrasonic soldering iron is retreated before the solder is solidified to finish formation of the plug sealant.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: August 13, 2013
    Assignee: Panasonic Corporation
    Inventors: Shigeo Kasahara, Akira Tokai, Manabu Inoue, Naoki Kosugi, Toshiaki Yoshitani
  • Publication number: 20110220384
    Abstract: A structure of a panel which can be thinned down to about a panel thickness of a PDP and a manufacturing method thereof are provided. A gas filling hole is provided to a surface of a rear glass substrate of a PDP, the surface coming in contact with a front glass substrate of the PDP. Vacuuming and filling of a discharge gas are performed through the gas filling hole. After filling of the discharge gas, a mechanism for lifting solder iron up and down and supplying solder provided inside a chamber inserts a tip of an ultrasonic soldering iron into the gas filling hole to start supplying a solder which is a material for a plug sealant. When a series of forming steps of the plug sealant are finished, the ultrasonic soldering iron is retreated before the solder is solidified to finish formation of the plug sealant.
    Type: Application
    Filed: February 15, 2011
    Publication date: September 15, 2011
    Inventors: Shigeo KASAHARA, Akira Tokai, Manabu Inoue, Naoki Kosugi, Toshiaki Yoshitani