Patents by Inventor Toyo Osumi

Toyo Osumi 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: 8947330
    Abstract: There is provided a display device including a display unit having pixels, each of which includes a luminescence element that individually becomes luminous depending on a current amount and a pixel circuit for controlling a current applied to the luminescence element according to a voltage signal, where the pixels are arranged in a matrix pattern. The display device includes an average luminance calculator (200) for calculating average luminance for a predetermined period of the input picture signal, and also includes a luminous time setter (202) for setting an effective duty depending on the calculated average luminance by the average luminance calculator (200), the effective duty regulating for each one frame a luminous time for which the luminescence element is luminous. The luminous time setter (202) sets the effective duty such that a luminescence amount regulated by a preset reference duty and possible maximum luminance of a picture signal.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: February 3, 2015
    Assignee: Sony Corporation
    Inventors: Yasuo Inoue, Yoshihiro Kosugi, Ken Kikuchi, Takeya Meguro, Hideto Mori, Toyo Osumi
  • Patent number: 8797367
    Abstract: A display device is provided that includes an amount of light emission computation portion that computes an amount of light emission based on a video signal that has a linear characteristic, an amount of light emission parameter computation portion that, based on the computed amount of light emission, computes an amount of light emission parameter that corresponds to the amount of light emission for each of one of one pixel and a group of pixels that includes a plurality of the pixels, an amount of light emission parameter accumulation portion that accumulates the amount of light emission parameters in association with the one of the one pixel and the group of pixels, a peak detection portion that detects a peak value among the accumulated amount of light emission parameters that correspond to all of the one of the one pixel and the group of pixels, a coefficient computation portion that, based on the detected peak value, computes a coefficient that adjusts a luminance, and a coefficient multiplying portion t
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: August 5, 2014
    Assignee: Sony Corporation
    Inventors: Hideto Mori, Ken Kikuchi, Yasuo Inoue, Takeya Meguro, Hidehiko Shidara, Masahiro Ito, Toyo Osumi, Eiichi Saito
  • Publication number: 20140132590
    Abstract: There is provided a display device including a display unit having pixels, each of which includes a luminescence element that individually becomes luminous depending on a current amount and a pixel circuit for controlling a current applied to the luminescence element according to a voltage signal, where the pixels are arranged in a matrix pattern. The display device includes an average luminance calculator (200) for calculating average luminance for a predetermined period of the input picture signal, and also includes a luminous time setter (202) for setting an effective duty depending on the calculated average luminance by the average luminance calculator (200), the effective duty regulating for each one frame a luminous time for which the luminescence element is luminous. The luminous time setter (202) sets the effective duty such that a luminescence amount regulated by a preset reference duty and possible maximum luminance of a picture signal.
    Type: Application
    Filed: January 16, 2014
    Publication date: May 15, 2014
    Applicant: Sony Corporation
    Inventors: Yasuo INOUE, Yoshihiro Kosugi, Ken Kikuchi, Takeya Meguro, Hideto Mori, Toyo Osumi
  • Patent number: 8654044
    Abstract: There is provided a display device including a display unit having pixels, each of which includes a luminescence element that individually becomes luminous depending on a current amount and a pixel circuit for controlling a current applied to the luminescence element according to a voltage signal, where the pixels are arranged in a matrix pattern. The display device includes an average luminance calculator (200) for calculating average luminance for a predetermined period of the input picture signal, and also includes a luminous time setter (202) for setting an effective duty depending on the calculated average luminance by the average luminance calculator (200), the effective duty regulating for each one frame a luminous time for which the luminescence element is luminous. The luminous time setter (202) sets the effective duty such that a luminescence amount regulated by a preset reference duty and possible maximum luminance of a picture signal.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: February 18, 2014
    Assignee: Sony Corporation
    Inventors: Yasuo Inoue, Yoshihiro Kosugi, Ken Kikuchi, Takeya Meguro, Hideto Mori, Toyo Osumi
  • Publication number: 20130271509
    Abstract: There is provided a display device including a display unit having pixels, each of which includes a luminescence element that individually becomes luminous depending on a current amount and a pixel circuit for controlling a current applied to the luminescence element according to a voltage signal, where the pixels are arranged in a matrix pattern. The display device includes an average luminance calculator (200) for calculating average luminance for a predetermined period of the input picture signal, and also includes a luminous time setter (202) for setting an effective duty depending on the calculated average luminance by the average luminance calculator (200), the effective duty regulating for each one frame a luminous time for which the luminescence element is luminous. The luminous time setter (202) sets the effective duty such that a luminescence amount regulated by a preset reference duty and possible maximum luminance of a picture signal.
    Type: Application
    Filed: June 10, 2013
    Publication date: October 17, 2013
    Inventors: Yasuo INOUE, Yoshihiro Kosugi, Ken Kikuchi, Takeya Meguro, Hideto Mori, Toyo Osumi
  • Patent number: 8471790
    Abstract: There is provided a display device including a display unit having pixels, each of which includes a luminescence element that individually becomes luminous depending on a current amount and a pixel circuit for controlling a current applied to the luminescence element according to a voltage signal, where the pixels are arranged in a matrix pattern. The display device includes an average luminance calculator (200) for calculating average luminance for a predetermined period of the input picture signal, and also includes a luminous time setter (202) for setting an effective duty depending on the calculated average luminance by the average luminance calculator (200), the effective duty regulating for each one frame a luminous time for which the luminescence element is luminous. The luminous time setter (202) sets the effective duty such that a luminescence amount regulated by a preset reference duty and possible maximum luminance of a picture signal.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: June 25, 2013
    Assignee: Sony Corporation
    Inventors: Yasuo Inoue, Yoshihiro Kosugi, Ken Kikuchi, Takeya Meguro, Hideto Mori, Toyo Osumi
  • Patent number: 8294642
    Abstract: There is provided a display device including a display unit having pixels, each of which includes a luminescence element that individually becomes luminous depending on a current amount and a pixel circuit for controlling a current applied to the luminescence element according to a voltage signal, where the pixels are arranged in a matrix pattern. The display device includes a luminescence amount regulator for setting a reference duty for regulating a luminescence amount for each one frame, according to the input picture signal, and an adjuster for adjusting an effective duty that regulates, for each one frame, a luminous time for which the luminescence element is luminous, and a gain of the picture signal, based on the reference duty and the input picture signal, so that the luminescence amount is constant before and after adjustment.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: October 23, 2012
    Assignee: Sony Corporation
    Inventors: Takeya Meguro, Ken Kikuchi, Yasuo Inoue, Toyo Osumi
  • Patent number: 8228268
    Abstract: There is provided a display device including a display unit having pixels, each of which includes a luminescence element for individually emitting light depending on a current amount and a pixel circuit for controlling a current applied to the luminescence element according to a picture signal, scan lines which supply a selection signal for selecting the pixels to emit light to the pixels in a predetermined scanning cycle, and data lines which supply the picture signal to the pixels, the pixels, the scan lines, and the data lines arranged in a matrix pattern, the display device including: a luminescence amount detector for inputting a picture signal with a linear characteristic to detect a luminescence amount from the picture signal; a luminescence time calculator for calculating a luminescence time for the luminescence element based on the luminescence amount detected by the luminescence amount detector; a luminescence time recorder for recording the calculated luminescence time; a luminance acquirer for acq
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: July 24, 2012
    Assignee: Sony Corporation
    Inventors: Hideto Mori, Ken Kikuchi, Yasuo Inoue, Takeya Meguro, Hidehiko Shidara, Masahiro Ito, Toyo Osumi
  • Patent number: 8144085
    Abstract: A display device includes: a light emission amount detecting section which inputs video signals having linear property and detects an amount of light emission from the video signals; a light emitting time calculating section which calculates light emitting time of the light emitting elements based on the amount of light emission detected by the light emission amount detecting section; a light emitting time recording section which records the calculated light emitting time; a luminance acquiring section which, acquires luminance information of the light emitting elements using the light emitting time recorded in the light emitting time recording section; a coefficient calculating section which calculates coefficients by which the video signals are multiplied based on the luminance information acquired by the luminance acquiring section; and a coefficient multiplying section which multiplies the video signals by the coefficients calculated by the coefficient calculating section.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: March 27, 2012
    Assignee: Sony Corporation
    Inventors: Hideto Mori, Ken Kikuchi, Yasuo Inoue, Takeya Meguro, Hidehiko Shidara, Masahiro Ito, Toyo Osumi
  • Patent number: 8139003
    Abstract: There is provided a display device provided with a display portion, in which pixels having a light-emitting element for self-light-emitting, and a pixel circuit for controlling a current applied to a light-emitting element according to a voltage signal are arranged in a matrix, provided with an average luminance calculation portion calculating an average of luminance of an input video signal, and a light-emitting time setting portion setting a real duty defined every one frame by which light-emitting time for light emitting of the light-emitting element according to a calculated average luminance, wherein the light-emitting time setting portion sets the real duty in such a way that a light-emitting amount defined by a standard duty set beforehand and a maximum luminance among those of a video signal, and a light-emitting amount defined by a real duty to be set and an average luminance become the same as each other.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: March 20, 2012
    Assignee: Sony Corporation
    Inventors: Yasuo Inoue, Yoshihiro Kosugi, Ken Kikuchi, Takeya Meguro, Hideto Mori, Toyo Osumi
  • Publication number: 20110050666
    Abstract: There is provided a display device including a display unit having pixels, each of which includes a luminescence element that individually becomes luminous depending on a current amount and a pixel circuit for controlling a current applied to the luminescence element according to a voltage signal, where the pixels are arranged in a matrix pattern. The display device includes an average luminance calculator (200) for calculating average luminance for a predetermined period of the input picture signal, and also includes a luminous time setter (202) for setting an effective duty depending on the calculated average luminance by the average luminance calculator (200), the effective duty regulating for each one frame a luminous time for which the luminescence element is luminous. The luminous time setter (202) sets the effective duty such that a luminescence amount regulated by a preset reference duty and possible maximum luminance of a picture signal.
    Type: Application
    Filed: May 19, 2008
    Publication date: March 3, 2011
    Inventors: Yasuo Inoue, Yoshihiro Kosugi, Ken Kikuchi, Takeya Meguro, Hideto Mori, Toyo Osumi
  • Publication number: 20100165009
    Abstract: A display device is provided that includes an amount of light emission computation portion that computes an amount of light emission based on a video signal that has a linear characteristic, an amount of light emission parameter computation portion that, based on the computed amount of light emission, computes an amount of light emission parameter that corresponds to the amount of light emission for each of one of one pixel and a group of pixels that includes a plurality of the pixels, an amount of light emission parameter accumulation portion that accumulates the amount of light emission parameters in association with the one of the one pixel and the group of pixels, a peak detection portion that detects a peak value among the accumulated amount of light emission parameters that correspond to all of the one of the one pixel and the group of pixels, a coefficient computation portion that, based on the detected peak value, computes a coefficient that adjusts a luminance, and a coefficient multiplying portion t
    Type: Application
    Filed: June 2, 2008
    Publication date: July 1, 2010
    Applicant: Sony Corporation
    Inventors: Hideto Mori, Ken Kikuchi, Yasuo Inoue, Takeya Meguro, Hidehiko Shidara, Masahiro Ito, Toyo Osumi, Eiichi Saito
  • Publication number: 20100127957
    Abstract: There is provided a display device including a display unit having pixels, each of which includes a luminescence element that individually becomes luminous depending on a current amount and a pixel circuit for controlling a current applied to the luminescence element according to a voltage signal, where the pixels are arranged in a matrix pattern. The display device includes a luminescence amount regulator for setting a reference duty for regulating a luminescence amount for each one frame, according to the input picture signal, and an adjuster for adjusting an effective duty that regulates, for each one frame, a luminous time for which the luminescence element is luminous, and a gain of the picture signal, based on the reference duty and the input picture signal, so that the luminescence amount is constant before and after adjustment.
    Type: Application
    Filed: May 23, 2008
    Publication date: May 27, 2010
    Applicant: Sony Corporation
    Inventors: Takeya Meguro, Ken Kikuchi, Yasuo Inoue, Toyo Osumi
  • Publication number: 20100118062
    Abstract: There is provided a display device including a display unit having pixels, each of which includes a luminescence element for individually emitting light depending on a current amount and a pixel circuit for controlling a current applied to the luminescence element according to a picture signal, scan lines which supply a selection signal for selecting the pixels to emit light to the pixels in a predetermined scanning cycle, and data lines which supply the picture signal to the pixels, the pixels, the scan lines, and the data lines arranged in a matrix pattern, the display device including: a luminescence amount detector for inputting a picture signal with a linear characteristic to detect a luminescence amount from the picture signal; a luminescence time calculator for calculating a luminescence time for the luminescence element based on the luminescence amount detected by the luminescence amount detector; a luminescence time recorder for recording the calculated luminescence time; a luminance acquirer for acq
    Type: Application
    Filed: May 15, 2008
    Publication date: May 13, 2010
    Applicant: Sony Corporation
    Inventors: Hideto Mori, Ken Kikuchi, Yasuo Inoue, Takeya Meguro, Hidehiko Shidara, Masahiro Ito, Toyo Osumi
  • Publication number: 20080291136
    Abstract: There is provided a display device provided with a display portion, in which pixels having a light-emitting element for self-light-emitting, and a pixel circuit for controlling a current applied to a light-emitting element according to a voltage signal are arranged in a matrix, provided with an average luminance calculation portion calculating an average of luminance of an input video signal, and a light-emitting time setting portion setting a real duty defined every one frame by which light-emitting time for light emitting of the light-emitting element according to a calculated average luminance, wherein the light-emitting time setting portion sets the real duty in such a way that a light-emitting amount defined by a standard duty set beforehand and a maximum luminance among those of a video signal, and a light-emitting amount defined by a real duty to be set and an average luminance become the same as each other.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 27, 2008
    Applicant: SONY CORPORATION
    Inventors: Yasuo Inoue, Yoshihiro Kosugi, Ken Kikuchi, Takeya Meguro, Hideto Mori, Toyo Osumi
  • Publication number: 20080284767
    Abstract: A display device includes: a light emission amount detecting section which inputs video signals having linear property and detects an amount of light emission from the video signals; a light emitting time calculating section which calculates light emitting time of the light emitting elements based on the amount of light emission detected by the light emission amount detecting section; a light emitting time recording section which records the calculated light emitting time; a luminance acquiring section which, acquires luminance information of the light emitting elements using the light emitting time recorded in the light emitting time recording section; a coefficient calculating section which calculates coefficients by which the video signals are multiplied based on the luminance information acquired by the luminance acquiring section; and a coefficient multiplying section which multiplies the video signals by the coefficients calculated by the coefficient calculating section.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 20, 2008
    Applicant: SONY CORPORATION
    Inventors: Hideto Mori, Ken Kikuchi, Yasuo Inoue, Takeya Meguro, Hidehiko Shidara, Masahiro Ito, Toyo Osumi