Patents by Inventor Yoshiro Mikami

Yoshiro Mikami 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: 20190109182
    Abstract: Organic EL display module including a pixel disposed in respective intersections between a plurality of scanning lines and a plurality of data lines, which lines are aligned in a matrix, and a current supply line that supplies electric current to the pixel, wherein the pixel includes an active device selected by the scanning line, a data storage device that stores a data signal that is supplied from the data line by control of the active device, and an organic light emitting device that emits light by the electric current supplied by the current supply line according to the data signal stored in the data storage device, wherein the data storage device provides a lower electrode, an insulating layer and an upper electrode, and wherein the lower electrode has a same layer with a channel layer of the active device and the upper electrode is made of a metal material.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 11, 2019
    Inventors: Toshihiro SATO, Yoshiyuki KANEKO, Yoshiro MIKAMI, Takayuki OUCHI
  • Patent number: 10109697
    Abstract: Organic EL display module including a pixel disposed in respective intersections between a plurality of scanning lines and a plurality of data lines, which lines are aligned in a matrix, and a current supply line that supplies electric current to the pixel, wherein the pixel includes an active device selected by the scanning line, a data storage device that stores a data signal that is supplied from the data line by control of the active device, and an organic light emitting device that emits light by the electric current supplied by the current supply line according to the data signal stored in the data storage device, wherein the data storage device provides a lower electrode, an insulating layer and an upper electrode, and wherein the lower electrode has a same layer with a channel layer of the active device and the upper electrode is made of a metal material.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: October 23, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Toshihiro Sato, Yoshiyuki Kaneko, Yoshiro Mikami, Takayuki Ouchi
  • Publication number: 20170373131
    Abstract: In an organic electroluminescent light emitting display device comprising a plurality of pixels each of which includes an organic electroluminescent element emitting light by a current supplied thereto, a plurality of active elements including a first active element which acquires a data signal and a second active element which regulates the current supplied to the organic electroluminescent element in accordance with the data signal, and a capacitive element storing the data signal, the present invention utilizes a part of the capacitive element arranged in one of the pixels for a light shielding member which shields the plurality of active elements arranged the one of the pixels from light emitted by the organic electroluminescent element arranged therein or another pixel adjacent thereto so as to suppress image quality deterioration and smear appearing in an image display area of the organic electroluminescent light emitting display device.
    Type: Application
    Filed: September 8, 2017
    Publication date: December 28, 2017
    Inventors: Toshihiro SATO, Genshiro KAWACHI, Yoshiro MIKAMI, Masaya ADACHI
  • Publication number: 20150372071
    Abstract: Organic EL display module including a pixel disposed in respective intersections between a plurality of scanning lines and a plurality of data lines, which lines are aligned in a matrix, and a current supply line that supplies electric current to the pixel, wherein the pixel includes an active device selected by the scanning line, a data storage device that stores a data signal that is supplied from the data line by control of the active device, and an organic light emitting device that emits light by the electric current supplied by the current supply line according to the data signal stored in the data storage device, wherein the data storage device provides a lower electrode, an insulating layer and an upper electrode, and wherein the lower electrode has a same layer with a channel layer of the active device and the upper electrode is made of a metal material.
    Type: Application
    Filed: September 2, 2015
    Publication date: December 24, 2015
    Inventors: Toshihiro SATO, Yoshiyuki KANEKO, Yoshiro MIKAMI, Takayuki OUCHI
  • Patent number: 8952884
    Abstract: Disclosed is a suspended particle device having a higher response speed of particles upon shutdown of the device. The suspended particle device includes a first substrate; a first electrode arranged on a surface of the first substrate; a second substrate; a second electrode arranged on a surface of the second substrate; and a suspension arranged between the first substrate and the second substrate, in which the suspension includes particles and a disperse medium, the particles are dispersed in the disperse medium, an orientation of the particles is controlled by an alternate-current voltage to be applied between the first electrode and the second electrode, and “a” which represents a frequency of an alternate-current voltage in a driving period is greater than “b” which represents a frequency of an alternate-current voltage in a shutdown period.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: February 10, 2015
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Shunsuke Mori, Yoshiro Mikami
  • Publication number: 20140374730
    Abstract: In an organic electroluminescent light emitting display device comprising a plurality of pixels each of which includes an organic electroluminescent element emitting light by a current supplied thereto, a plurality of active elements including a first active element which acquires a data signal and a second active element which regulates the current supplied to the organic electroluminescent element in accordance with the data signal, and a capacitive element storing the data signal, the present invention utilizes a part of the capacitive element arranged in one of the pixels for a light shielding member which shields the plurality of active elements arranged the one of the pixels from light emitted by the organic electroluminescent element arranged therein or another pixel adjacent thereto so as to suppress image quality deterioration and smear appearing in an image display area of the organic electroluminescent light emitting display device.
    Type: Application
    Filed: September 5, 2014
    Publication date: December 25, 2014
    Inventors: Toshihiro SATO, Genshiro KAWACHI, Yoshiro MIKAMI, Masaya ADACHI
  • Patent number: 8848157
    Abstract: A liquid crystal display includes: a pair of substrates including at least one transparent substrate; a liquid crystal layer disposed between the pair of substrates; and an electrode group formed on at least one of the pair of substrates so as to apply an electric field to the liquid crystal layer. The liquid crystal layer contains at least one kind of liquid crystalline compound and at least one kind of chiral dopant. The concentration c of the chiral dopant is lower than a saturation solubility s thereof. The concentration c of the chiral dopant and a helical twisting power [HTP] of the chiral dopant satisfy a relation of [HTP]·c?5.5 (?m?1).
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: September 30, 2014
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Mika Oiwa, Shintaro Takeda, Kotaro Araya, Yasushi Tomioka, Yoshiro Mikami
  • Patent number: 8847858
    Abstract: In an organic electroluminescent light emitting display device comprising a plurality of pixels each of which includes an organic electroluminescent element emitting light by a current supplied thereto, a plurality of active elements including a first active element which acquires a data signal and a second active element which regulates the current supplied to the organic electroluminescent element in accordance with the data signal, and a capacitive element storing the data signal, the present invention utilizes a part of the capacitive element arranged in one of the pixels for a light shielding member which shields the plurality of active elements arranged the one of the pixels from light emitted by the organic electroluminescent element arranged therein or another pixel adjacent thereto so as to suppress image quality deterioration and smear appearing in an image display area of the organic electroluminescent light emitting display device.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: September 30, 2014
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Toshihiro Sato, Genshiro Kawachi, Yoshiro Mikami, Masaya Adachi
  • Patent number: 8767137
    Abstract: In a liquid crystal display device, the reduction of power consumption is realized by reddening a backlight while maintaining a white balance. An aperture ratio of a red subpixel and an aperture ratio of a blue subpixel are set such that, in a state where an aperture ratio of a green subpixel in each pixel of a liquid crystal panel is fixed to a desired value, white brightness efficiency takes a maximum value which is set based on a balance between light emission efficiency which is increased corresponding to lowering of a color temperature of the backlight and transmissivity of the pixel which is decreased corresponding to the increase of the aperture ratio of the blue subpixel.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: July 1, 2014
    Assignee: Japan Display Inc.
    Inventors: Ikuo Hiyama, Kentaro Ojima, Masahiro Ishii, Shisei Katou, Yoshiro Mikami
  • Publication number: 20140139409
    Abstract: Organic EL display module including a pixel disposed in respective intersections between a plurality of scanning lines and a plurality of data lines, which lines are aligned in a matrix, and a current supply line that supplies electric current to the pixel, wherein the pixel includes an active device selected by the scanning line, a data storage device that stores a data signal that is supplied from the data line by control of the active device, and an organic light emitting device that emits light by the electric current supplied by the current supply line according to the data signal stored in the data storage device, wherein the data storage device provides a lower electrode, an insulating layer and an upper electrode, and wherein the lower electrode has a same layer with a channel layer of the active device and the upper electrode is made of a metal material.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 22, 2014
    Inventors: Toshihiro SATO, Yoshiyuki KANEKO, Yoshiro MIKAMI, Takayuki OUCHI
  • Patent number: 8599470
    Abstract: A suspended particle device is realized which enables control of the amount of light transmitted through a prescribed area, without any complicated switching circuit on a substrate. A suspension, containing charged particles and a disperse medium, is filled between an A-substrate and a B-substrate, and first and second electrodes are formed on the A-substrate. A DC voltage is applied across the first and second electrodes, to localize the charged particles on the second electrode side. Subsequently, an AC voltage is applied across the first and second electrodes to orient, while maintaining the localized state of the charged particles, the charged particles along a direction of an electric field. Light transmittance is lower in an area where the charged particles are present than in an area without charged particles, whereas, in the area where the charged particles are present, the light transmittance can be controlled by adjusting the AC voltage.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: December 3, 2013
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Shunsuke Mori, Yoshiro Mikami, Toshiaki Kusunoki
  • Patent number: 8581806
    Abstract: A display module includes a pixel disposed in respective intersections between a plurality of scanning lines and a plurality of data lines, which lines are aligned in a matrix, and a current supply line that supplies electric current to the pixel, the pixel includes a data storage device for storing a data signal supplied from the data lines, and an emitting device that emits light by the electric current supplied by the current supply line according to the data signal stored in the data storage device. One terminal of the data signal storage device is connected to one of the scanning lines placed anteriorly of to the pixel that is being selected.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: November 12, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Toshihiro Sato, Yoshiyuki Kaneko, Yoshiro Mikami, Takayuki Ouchi
  • Publication number: 20130240863
    Abstract: In an organic electroluminescent light emitting display device comprising a plurality of pixels each of which includes an organic electroluminescent element emitting light by a current supplied thereto, a plurality of active elements including a first active element which acquires a data signal and a second active element which regulates the current supplied to the organic electroluminescent element in accordance with the data signal, and a capacitive element storing the data signal, the present invention utilizes a part of the capacitive element arranged in one of the pixels for a light shielding member which shields the plurality of active elements arranged the one of the pixels from light emitted by the organic electroluminescent element arranged therein or another pixel adjacent thereto so as to suppress image quality deterioration and smear appearing in an image display area of the organic electroluminescent light emitting display device.
    Type: Application
    Filed: May 8, 2013
    Publication date: September 19, 2013
    Applicants: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Displays, Ltd.
    Inventors: Toshihiro SATO, Genshiro Kawachi, Yoshiro Mikami, Masaya Adachi
  • Patent number: 8514359
    Abstract: Provided is a liquid crystal display device, including: a liquid crystal layer filled between a first and a second substrate; two polymer structures; and a plurality of pixels each including a first and a second electrode, one of the first and the second electrode being a pixel electrode, in which: each of the plurality of pixels is provided within a region surrounded by a signal line, a part of the signal line being formed between adjacent two of the plurality of pixels; each of the two polymer structures, which extends along the part of the signal line so as to sandwich the part of the signal line in plan view and is formed from one of the first and the second substrate toward another thereof, is formed so as to overlap with any of the region; and the two adjacent polymer structures has the liquid crystal layer provided therebetween.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: August 20, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Shintaro Takeda, Kotaro Araya, Yasushi Tomioka, Masaki Matsumori, Yoshiro Mikami
  • Patent number: 8446347
    Abstract: In an organic electroluminescent light emitting display device comprising a plurality of pixels each of which includes an organic electroluminescent element emitting light by a current supplied thereto, a plurality of active elements including a first active element which acquires a data signal and a second active element which regulates the current supplied to the organic electroluminescent element in accordance with the data signal, and a capacitive element storing the data signal, the present invention utilizes a part of the capacitive element arranged in one of the pixels for a light shielding member which shields the plurality of active elements arranged the one of the pixels from light emitted by the organic electroluminescent element arranged therein or another pixel adjacent thereto so as to suppress image quality deterioration and smear appearing in an image display area of the organic electroluminescent light emitting display device.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: May 21, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Toshihiro Sato, Genshiro Kawachi, Yoshiro Mikami, Masaya Adachi
  • Patent number: 8384845
    Abstract: The side surface of the light guide plate includes an incident surface which faces the light source unit in an opposed manner, and a fixing surface which is directed in the left-and-right direction orthogonal to the top-and-bottom direction which is the direction along which the light source unit and the incident surface each other in an opposed manner. An engaging portion which is engageable with a lower frame is formed on the fixing surface or an edge portion which forms the fixing surface. The engaging portion is configured to allow a change of a distance between the incident surface and the lower frame due to expansion or shrinkage of the light guide plate while restricting the movement of the light guide plate in the top-and-bottom direction.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: February 26, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Yoshifumi Sekiguchi, Yoshiro Mikami, Ikuo Hiyama, Naoki Iwasaki, Masaki Tsubokura
  • Publication number: 20130033741
    Abstract: The suspended particle device includes a first substrate and a second substrate, a first electrode, a second electrode, a third electrode and a suspension disposed between the first substrate and the second substrate, wherein the first electrode is formed on the first substrate, the second electrode and the third electrode are formed on the second substrate, the suspension includes light-control particles and a disperse medium, the light-control particles are charged, an orientation state of the light-control particles is controlled by applying AC voltage to at least any one of the first electrode, the second electrode, and the third electrode, and the light-control particles are dispersed in the suspension or biased to the third electrode by applying DC voltage to at least one of the first electrode, the second electrode, and the third electrode.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 7, 2013
    Applicant: Hitachi Chemical Company, Ltd.
    Inventors: Shunsuke MORI, Hiroki Kaneko, Yoshiro Mikami, Yoshii Morishita
  • Publication number: 20120162292
    Abstract: Disclosed is a suspended particle device having a higher response speed of particles upon shutdown of the device. The suspended particle device includes a first substrate; a first electrode arranged on a surface of the first substrate; a second substrate; a second electrode arranged on a surface of the second substrate; and a suspension arranged between the first substrate and the second substrate, in which the suspension includes particles and a disperse medium, the particles are dispersed in the disperse medium, an orientation of the particles is controlled by an alternate-current voltage to be applied between the first electrode and the second electrode, and “a” which represents a frequency of an alternate-current voltage in a driving period is greater than “b” which represents a frequency of an alternate-current voltage in a shutdown period.
    Type: Application
    Filed: December 27, 2011
    Publication date: June 28, 2012
    Inventors: Shunsuke MORI, Yoshiro Mikami
  • Publication number: 20120127146
    Abstract: In an organic electroluminescent light emitting display device comprising a plurality of pixels each of which includes an organic electroluminescent element emitting light by a current supplied thereto, a plurality of active elements including a first active element which acquires a data signal and a second active element which regulates the current supplied to the organic electroluminescent element in accordance with the data signal, and a capacitive element storing the data signal, the present invention utilizes a part of the capacitive element arranged in one of the pixels for a light shielding member which shields the plurality of active elements arranged the one of the pixels from light emitted by the organic electroluminescent element arranged therein or another pixel adjacent thereto so as to suppress image quality deterioration and smear appearing in an image display area of the organic electroluminescent light emitting display device.
    Type: Application
    Filed: February 2, 2012
    Publication date: May 24, 2012
    Applicants: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Displays, Ltd.
    Inventors: Toshihiro Sato, Genshiro Kawachi, Yoshiro Mikami, Masaya Adachi
  • Publication number: 20120075563
    Abstract: Provided is a liquid crystal display device, including: a liquid crystal layer filled between a first and a second substrate; two polymer structures; and a plurality of pixels each including a first and a second electrode, one of the first and the second electrode being a pixel electrode, in which: each of the plurality of pixels is provided within a region surrounded by a signal line, a part of the signal line being formed between adjacent two of the plurality of pixels; each of the two polymer structures, which extends along the part of the signal line so as to sandwich the part of the signal line in plan view and is formed from one of the first and the second substrate toward another thereof, is formed so as to overlap with any of the region; and the two adjacent polymer structures has the liquid crystal layer provided therebetween.
    Type: Application
    Filed: August 19, 2011
    Publication date: March 29, 2012
    Inventors: Shintaro TAKEDA, Kotaro Araya, Yasushi Tomioka, Masaki Matsumori, Yoshiro Mikami