Patents by Inventor Yuichi Numata

Yuichi Numata 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: 11972053
    Abstract: An object of the present disclosure is to provide a tactile presentation control apparatus that can provide an operation feeling of a dial knob that allows intuitive operation by a tactile sense of the user, and is user-friendly. A tactile presentation control apparatus according to the present disclosure that has a tactile presentation knob placed on an operation surface and presents a tactile sense to the user via the tactile presentation knob. The tactile presentation control apparatus includes a tactile control unit that performs control to present different tactile senses to each of a plurality of operation regions on the operation surface when the tactile presentation knob is rotationally operated. When the tactile presentation knob is present in one of the operation regions, the tactile control unit performs control to present, as the tactile sense, a frictional force generated in the tactile presentation knob to the operation region.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: April 30, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tae Orita, Yoshinori Ueno, Mitsuru Sakai, Naoki Numata, Yuki Furumoto, Tsuyoshi Sempuku, Yuichi Sasaki
  • Patent number: 9792854
    Abstract: A display device includes a display area that includes sub-pixels arranged in a matrix having rows and columns, pixels formed of the combination of two sub-pixels, from which light of different wavelength regions is emitted, image signal lines arranged by two columns, scanning signal lines arranged by one in each row, pixel transistors disposed in the respective sub-pixels in which one image signal line is connected to a source of each pixel transistor, and the one scanning signal line is connected to a gate of the pixel transistor, light emitting elements that each emit light on the basis of a potential of a drain of the pixel transistor, and a drive circuit that applies a conduction potential for rendering the pixel transistors conductive to two scanning signal lines corresponding to two adjacent rows at the same time.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: October 17, 2017
    Assignee: Japan Display Inc.
    Inventors: Toshihiro Sato, Yuichi Numata
  • Patent number: 9536470
    Abstract: An organic electroluminescence display device is provided in which circuit components can be installed at a high density and which can reduce power consumption. The organic electroluminescence display device of the present invention comprises a display part including a first display area including a plurality of first pixels and a second display area including a plurality of second pixels, and a switch unit formed from a plurality of transistors and switching between display in the first display area and display in the second display area. The switch unit does not drive the plurality of second pixels during a frame time period for driving the plurality of first pixels in the display part and drives the plurality of second pixels during a vertical retrace time period in which the plurality of first pixels are not driven in the display part.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: January 3, 2017
    Assignee: Japan Display Inc.
    Inventor: Yuichi Numata
  • Patent number: 9397316
    Abstract: An OLED display panel is provided which can dissipate heat generated from a circuit on the OLED display panel to the exterior using a structure which can rapidly reduce costs. A metal film 2 and insulation film 3 are formed between a glass substrate 1 and TFT drive circuit layer 4 in sequence from the side of the glass substrate 1. The metal film 2 conducts with a heat dissipation pattern 5b formed above the TFT drive circuit layer 4 from the metal film via a contact 15 which passes through the insulation film 3 and TFT drive circuit layer 4. The heat dissipation pattern 5b is connected to a metal frame 20 via a heat dissipation tape 21.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: July 19, 2016
    Assignee: JAPAN DISPLAY INC.
    Inventors: Kazuhiro Odaka, Yuichi Numata
  • Publication number: 20150262530
    Abstract: A display device includes a display area that includes sub-pixels arranged in a matrix having rows and columns, pixels formed of the combination of two sub-pixels, from which light of different wavelength regions is emitted, image signal lines arranged by two columns, scanning signal lines arranged by one in each row, pixel transistors disposed in the respective sub-pixels in which one image signal line is connected to a source of each pixel transistor, and the one scanning signal line is connected to a gate of the pixel transistor, light emitting elements that each emit light on the basis of a potential of a drain of the pixel transistor, and a drive circuit that applies a conduction potential for rendering the pixel transistors conductive to two scanning signal lines corresponding to two adjacent rows at the same time.
    Type: Application
    Filed: March 12, 2015
    Publication date: September 17, 2015
    Inventors: Toshihiro SATO, Yuichi Numata
  • Publication number: 20140152707
    Abstract: An organic electroluminescence display device is provided in which circuit components can be installed at a high density and which can reduce power consumption. The organic electroluminescence display device of the present invention comprises a display part including a first display area including a plurality of first pixels and a second display area including a plurality of second pixels, and a switch unit formed from a plurality of transistors and switching between display in the first display area and display in the second display area. The switch unit does not drive the plurality of second pixels during a frame time period for driving the plurality of first pixels in the display part and drives the plurality of second pixels during a vertical retrace time period in which the plurality of first pixels are not driven in the display part.
    Type: Application
    Filed: November 29, 2013
    Publication date: June 5, 2014
    Applicant: JAPAN DISPLAY INC.
    Inventor: Yuichi NUMATA
  • Publication number: 20140145164
    Abstract: An OLED display panel is provided which can dissipate heat generated from a circuit on the OLED display panel to the exterior using a structure which can rapidly reduce costs. A metal film 2 and insulation film 3 are formed between a glass substrate 1 and TFT drive circuit layer 4 in sequence from the side of the glass substrate 1. The metal film 2 conducts with a heat dissipation pattern 5b formed above the TFT drive circuit layer 4 from the metal film via a contact 15 which passes through the insulation film 3 and TFT drive circuit layer 4. The heat dissipation pattern 5b is connected to a metal frame 20 via a heat dissipation tape 21.
    Type: Application
    Filed: November 22, 2013
    Publication date: May 29, 2014
    Applicant: JAPAN DISPLAY INC.
    Inventors: Kazuhiro ODAKA, Yuichi NUMATA
  • Patent number: 7999803
    Abstract: The present invention provides a liquid crystal display device which can be used in a miniaturized portable equipment, wherein the liquid crystal display device integrally incorporates a drive circuit therein so that a circuit scale can be miniaturized. A liquid crystal drive circuit includes a first drive circuit and a second drive circuit which is mounted on one side of the liquid crystal display panel. One output of the first drive circuit is connected to a plurality of signal lines and the second drive circuit supplies signals to the first drive circuit. The liquid crystal display panel includes holding capacitive elements and signals are supplied to the holding capacitive elements from the second drive circuit. The second drive circuit includes a booster circuit for supplying signals to the first drive circuit and the holding capacitive elements.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: August 16, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Mitsuru Goto, Yuichi Numata, Masato Sawahata, Akira Ogura
  • Publication number: 20080252577
    Abstract: The present invention provides a liquid crystal display device which can be used in a miniaturized portable equipment, wherein the liquid crystal display device integrally incorporates a drive circuit therein so that a circuit scale can be miniaturized. A liquid crystal drive circuit includes a first drive circuit and a second drive circuit which is mounted on one side of the liquid crystal display panel. One output of the first drive circuit is connected to a plurality of signal lines and the second drive circuit supplies signals to the first drive circuit. The liquid crystal display panel includes holding capacitive elements and signals are supplied to the holding capacitive elements from the second drive circuit. The second drive circuit includes a booster circuit for supplying signals to the first drive circuit and the holding capacitive elements.
    Type: Application
    Filed: August 16, 2007
    Publication date: October 16, 2008
    Inventors: Mitsuru Goto, Yuichi Numata, Masato Sawahata, Akira Ogura
  • Patent number: 7307612
    Abstract: The present invention provides a liquid crystal display device which can be used in a miniaturized portable equipment, wherein the liquid crystal display device integrally incorporates a drive circuit therein so that a circuit scale can be miniaturized. A liquid crystal drive circuit includes a first drive circuit and a second drive circuit which is mounted on one side of the liquid crystal display panel. One output of the first drive circuit is connected to a plurality of signal lines and the second drive circuit supplies signals to the first drive circuit. The liquid crystal display panel includes holding capacitive elements and signals are supplied to the holding capacitive elements from the second drive circuit. The second drive circuit includes a booster circuit for supplying signals to the first drive circuit and the holding capacitive elements.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: December 11, 2007
    Assignees: Hitachi Displays, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Mitsuru Goto, Yuichi Numata, Masato Sawahata, Akira Ogura
  • Publication number: 20070109215
    Abstract: A display device used in a miniaturized portable equipment is capable of driving two display panels, consisting of main and sub display-panels. The display device includes a main display panel, a sub-display panel and a drive circuit. The drive circuit can simultaneously drive the main display panel and the sub-display panel. Output terminals are provided to the main display panel, and signals are transmitted to the sub-display panel from the output terminals. Further, the drive circuit includes a power source circuit which is capable of outputting proper common voltages to the main display panel and the sub-display panel.
    Type: Application
    Filed: January 9, 2007
    Publication date: May 17, 2007
    Inventors: Mitsuru Goto, Yuichi Numata, Masato Sawahata, Yoshinori Aoki, Youichi Ooki
  • Patent number: 7167141
    Abstract: A display device used in a miniaturized portable equipment is capable of driving two display panels, consisting of main and sub-display panels. The display device includes a main display panel, a sub-display panel and a drive circuit. The drive circuit can simultaneously drive the main display panel and the sub-display panel. Output terminals are provided to the main display panel, and signals are transmitted to the sub-display panel from the output terminals. Further, the drive circuit includes a power source circuit which is capable of outputting proper common voltages to the main display panel and the sub-display panel.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: January 23, 2007
    Assignees: Hitachi Displays, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Mitsuru Goto, Yuichi Numata, Masato Sawahata, Yoshinori Aoki, Youichi Ooki
  • Publication number: 20050270009
    Abstract: In a liquid crystal display module which includes a first display panel and a second display panel, it is possible to reduce a voltage drop attributed to the line resistance of a drive voltage supplied to the second display panel without increasing the cost. For this purpose, the first display panel includes a power source circuit which generates a drive voltage, the second display panel includes a scanning line drive circuit which drives scanning lines of the second display panel, a power source line of the first display panel, a power source line to which the drive voltage generated by the power source circuit is supplied and a variable resistance circuit which is connected with the power source line. The scanning line drive circuit drives the scanning lines of the second display panel in response to a drive voltage outputted from the variable resistance circuit.
    Type: Application
    Filed: June 8, 2005
    Publication date: December 8, 2005
    Inventors: Youichi Ohki, Youzou Nakayasu, Yuichi Numata, Mitsuru Goto, Yoshinori Aoki
  • Publication number: 20040021616
    Abstract: The present invention provides a display device used in a miniaturized portable equipment which is capable of driving two display panels consisting of main and sub display panels. The display device includes a main display panel, a sub display panel and a drive circuit. The drive circuit can simultaneously drive the main display panel and the sub display panel. Output terminals are provided to the main display panel and signals are transmitted to the sub display panel from the output terminals. Further, the drive circuit includes a power source circuit which is capable of outputting proper common voltages to the main display panel and the sub display panel.
    Type: Application
    Filed: July 29, 2003
    Publication date: February 5, 2004
    Inventors: Mitsuru Goto, Yuichi Numata, Masato Sawahata, Yoshinori Aoki, Youichi Ooki
  • Publication number: 20030201991
    Abstract: The present invention provides a liquid crystal display device which can be used in a miniaturized portable equipment, wherein the liquid crystal display device integrally incorporates a drive circuit therein so that a circuit scale can be miniaturized. A liquid crystal drive circuit includes a first drive circuit and a second drive circuit which is mounted on one side of the liquid crystal display panel. One output of the first drive circuit is connected to a plurality of signal lines and the second drive circuit supplies signals to the first drive circuit. The liquid crystal display panel includes holding capacitive elements and signals are supplied to the holding capacitive elements from the second drive circuit. The second drive circuit includes a booster circuit for supplying signals to the first drive circuit and the holding capacitive elements.
    Type: Application
    Filed: April 11, 2003
    Publication date: October 30, 2003
    Applicants: Hitachi Displays, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Mitsuru Goto, Yuichi Numata, Masato Sawahata, Akira Ogura
  • Patent number: 5648792
    Abstract: A TFT display device realizing a high degree of fineness by integrally forming a TFT display panel and a drive circuit therefor by using a poly-Si film.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: July 15, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Toshihiro Sato, Hiroko Hayata, Yuichi Numata, Takuo Kaitoh, Jun Ishikawa, Shigeo Shimomura