Patents by Inventor Shigeo Kasahara

Shigeo Kasahara 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: 20220279157
    Abstract: A display device includes: a first display unit that displays a non-directional display image which is invariant regardless of a viewing direction of an observer; a second display unit that is disposed on a side opposite to an outer surface of the first display unit and has a plurality of pixels two-dimensionally arranged to display a display image having a different directional property in accordance with the viewing direction of the observer; an optical element array that is disposed in parallel with a light emission surface of the second display unit between the outer surface of the first display unit and the second display unit, in which a plurality of optical elements are arranged respectively corresponding to a predetermined unit of pixels among the plurality of pixels; and a driving unit that turns on a predetermined pixel among the plurality of pixels of the second display unit.
    Type: Application
    Filed: June 5, 2020
    Publication date: September 1, 2022
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shigeo KASAHARA, Satoru TANAHASHI, Naoki KAMADA
  • Publication number: 20220252898
    Abstract: The display device includes a mirror display element, a display, an optical element array, an external light reflection suppression layer, and a driving unit. The mirror display element reflects a part of external light and transmits a part of the external light. A display is disposed on an opposite side of an outer surface of the mirror display element, in which a plurality of pixels are two-dimensionally arranged. An optical element array is disposed between the mirror display element and the display in parallel with a light emission surface of the display, in which a plurality of optical elements corresponding to a predetermined unit of pixels among the plurality of pixels are arranged. An external light reflection suppression layer is disposed between the mirror display element and the display to suppress reflection of the external light. The driving unit drives the display to turn on a predetermined pixel among the plurality of pixels.
    Type: Application
    Filed: May 21, 2020
    Publication date: August 11, 2022
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shigeo KASAHARA, Satoru TANAHASHI, Naoki KAMADA
  • Publication number: 20220082853
    Abstract: This display device includes: a display unit including a plurality of pixels that is arrayed; an optical element array arranged in parallel with a light exit surface of the display unit and including a plurality of optical elements that is arrayed; and a controller that controls a pixel among the plurality of pixels to be non-lighting, the pixel overlapping a boundary portion between adjacent optical elements among the plurality of optical elements in a facing direction in which the display unit and the optical element array face each other.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 17, 2022
    Inventors: Satoru TANAHASHI, Shigeo Kasahara, Naoki Kamada, Toshiya Mori, Ken'ichi Kasazumi
  • Publication number: 20220013046
    Abstract: A virtual image display system includes an image data producing unit, an image display, and an optical system. The image data producing unit produces, based on image data of a rendering target and position information about a display position of the target, image data to display a virtual image of the target. The image display displays, on a display screen, an image based on the image data to display the virtual image. The display screen is arranged to be tilted with respect to an optical path leading from the display screen to the optical system. The image data of the rendering target includes first image data of a stereoscopic rendering target. The image data producing unit produces, based on the first image data and position information about a display position of the stereoscopic rendering target, second image data to make the user view the stereoscopic rendering target stereoscopically.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 13, 2022
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Toshiya MORI, Ken'ichi KASAZUMI, Satoru TANAHASHI, Shigeo KASAHARA
  • Publication number: 20200007857
    Abstract: Display device (2) includes display panel (20) that displays an image, backlight (16) that irradiates a back surface of display panel (20) with light, polarization modulator (10) that modulates light representing the image of display panel (20) into either one of first polarized light and second polarized light that differ in polarization direction, first mirror (12) that is inclined relative to display panel (20), reflects toward user (6) the first polarized light that comes from polarization modulator (10), and transmits the second polarized light that comes from polarization modulator (10), and second mirror (14) that is in spaced and opposed relation to first mirror (12) and reflects toward user (6) the second polarized light that passes through first mirror (12).
    Type: Application
    Filed: September 10, 2019
    Publication date: January 2, 2020
    Inventors: Shigeo KASAHARA, Kazushige TAKAGI, Manabu INOUE
  • Publication number: 20170269373
    Abstract: A display device includes a rear polarizing plate having a first transmission axis, a rear panel in which a major axis of a liquid crystal molecule in an initial alignment is oriented in a first initial alignment direction, a ?/2 wavelength plate, a front panel in which a major axis of a liquid crystal molecule in an initial alignment is oriented in a second initial alignment direction different from the first initial alignment direction, the front panel being tilted at a predetermined angle with respect to the rear panel, and a front polarizing plate having a second transmission axis oriented in a direction different from the first transmission axis and tilted at the predetermined angle with respect to the rear polarizing plate.
    Type: Application
    Filed: January 20, 2017
    Publication date: September 21, 2017
    Inventor: SHIGEO KASAHARA
  • 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: 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: 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: 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