Patents by Inventor Yohei Funatsu

Yohei Funatsu 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: 20160203747
    Abstract: [Object] [Solving Means] An image display apparatus includes: an image display section in which a first sub-pixel for displaying a first primary color, a second sub-pixel for displaying a second primary color, a third sub-pixel for displaying a third primary color, and a fourth sub-pixel for displaying a fourth color are arranged in a 2D matrix; and a signal generation section configured to generate a signal for driving the image display section based on a first input image signal for displaying the first primary color, a second input image signal for displaying the second primary color, and a third input image signal for displaying the third primary color, that are supplied in correspondence with pixels of an image to be displayed, in which the signal generation section carries out, when the first input image signal, the second input image signal, and the third input image signal corresponding to the pixels are signals for performing display exceeding a reproduction range of colors displayable in the image d
    Type: Application
    Filed: May 23, 2014
    Publication date: July 14, 2016
    Inventors: YOHEI FUNATSU, HIDEHISA SHIMIZU
  • Patent number: 9344761
    Abstract: A video display system includes a video display unit, and an external unit configured to be communicatable with the video display unit. The video display unit includes a display panel and is configured to transmit specific information to the external unit. The specific information includes display panel information related to the display panel. The external unit is configured to derive a parameter from the specific information received from the video display unit and to transmit, to the video display unit, one of the derived parameter and related data related to the derived parameter. The parameter determines image quality.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: May 17, 2016
    Assignee: JOLED Inc.
    Inventors: Yohei Funatsu, Koichi Maeyama, Daisuke Miki, Yoshito Shiraishi, Shoji Araki
  • Patent number: 9336705
    Abstract: Provided is a self-luminous display device including a data calculation section configured to calculate, by using a supplied video signal, data relating to a luminance amount accumulated in a unit of a first block in a target region for luminance control in a screen on which a plurality of pixels are arranged in a matrix, each of the pixels including a light emitting element which emits light by itself according to a current amount, a resampling section configured to resample the data relating to the luminance amount in the target region, in a unit of a second block, the data relating to the luminance amount being calculated by the data calculation section, the second block being larger than the first block, and a scaling section configured to generate data for luminance control in the target region by scaling the data resampled by the resampling section.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: May 10, 2016
    Assignee: Joled Inc.
    Inventors: Yasuo Inoue, Yohei Funatsu, Hidehisa Shimizu, Takashi Uchida
  • Patent number: 9299291
    Abstract: A display unit includes: a display section including a plurality of unit pixels; and a drive section configured to perform a first drive, a second drive, and a third drive on each of the unit pixels in this order, in which each of the first drive and the second drive includes an initialization drive, a writing drive of a pixel voltage, and a light emission drive based on the pixel voltage written by the writing drive, a part of a series of the initialization drive, the writing drive, and the light emission drive differs between the first drive and the second drive, and the third drive includes a light emission drive based on the pixel voltage written by the writing drive in the second drive.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: March 29, 2016
    Assignee: JOLED Inc.
    Inventors: Koichi Maeyama, Teppei Isobe, Yohei Funatsu, Daisuke Miki
  • Publication number: 20150279284
    Abstract: Provided is an image processing device including a luminance information generating unit that generates fourth luminance information, which becomes the basis of luminance of a fourth pixel, on the basis of variation characteristics with the passage of time regarding light-emission luminance in the fourth pixel of a display unit including a first pixel, a second pixel, and a third pixel which emit three basic color light beams, and the fourth pixel that emits a non-basic color light beam, and first luminance information, second luminance information, and third luminance information which correspond to the first pixel, the second pixel, and the third pixel, respectively.
    Type: Application
    Filed: March 4, 2015
    Publication date: October 1, 2015
    Inventors: Tomoya Yano, Yasuo Inoue, Yohei Funatsu
  • Publication number: 20150187277
    Abstract: A display unit includes: a display section including a plurality of unit pixels; and a drive section configured to perform a first drive, a second drive, and a third drive on each of the unit pixels in this order, in which each of the first drive and the second drive includes an initialization drive, a writing drive of a pixel voltage, and a light emission drive based on the pixel voltage written by the writing drive, a part of a series of the initialization drive, the writing drive, and the light emission drive differs between the first drive and the second drive, and the third drive includes a light emission drive based on the pixel voltage written by the writing drive in the second drive.
    Type: Application
    Filed: November 14, 2014
    Publication date: July 2, 2015
    Inventors: Koichi Maeyama, Teppei Isobe, Yohei Funatsu, Daisuke Miki
  • Publication number: 20150154937
    Abstract: A color signal processing circuit of the present disclosure includes: a correction signal generation unit which generates, on the basis of a signal level of a color signal corresponding to one primary color among color signals corresponding to a plurality of primary colors being input, a correction signal for chromaticity of a color signal corresponding to another primary color as a difference value from a signal level of each color signal corresponding to predetermined chromaticity; and a correction unit which uses the correction signal generated by the correction signal generation unit to correct the color signal corresponding to the other primary color.
    Type: Application
    Filed: June 20, 2013
    Publication date: June 4, 2015
    Applicant: SONY CORPORATION
    Inventors: Yohei Funatsu, Yasuo Inoue, Tomoya Yano, Ryo Ogawa, Shoji Araki, Hidehisa Shimizu, Tetsuro Yamamoto, Yuki Seo, Takashi Uchida
  • Publication number: 20150130856
    Abstract: There is provided a signal generation apparatus for generating an output video signal based on an input video signal provided corresponding to an image to be displayed, the output video signal being a signal for driving an image display section including a display area, the display area including a plurality of pixels arranged in a two-dimensional matrix. At a change of the input video signal from low-brightness display to high-brightness display for a portion of the display area including one or more of the pixels, during a period for the signal change, the output video signal being generated for each of the one or more of the pixels in the portion of the display area to obtain a higher brightness than usual for the portion of the display area.
    Type: Application
    Filed: October 7, 2014
    Publication date: May 14, 2015
    Inventors: Yohei Funatsu, Shoji Araki
  • Publication number: 20150106844
    Abstract: A video display system includes a video display unit, and an external unit configured to be communicatable with the video display unit. The video display unit includes a display panel and is configured to transmit specific information to the external unit. The specific information includes display panel information related to the display panel. The external unit is configured to derive a parameter from the specific information received from the video display unit and to transmit, to the video display unit, one of the derived parameter and related data related to the derived parameter. The parameter determines image quality.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 16, 2015
    Inventors: Yohei Funatsu, Koichi Maeyama, Daisuke Miki, Yoshito Shiraishi, Shoji Araki
  • Publication number: 20140368556
    Abstract: A display apparatus includes: a display unit that includes a display area including display elements arranged in a two-dimensional matrix and is configured to display an image in the display area based on a video signal; and a correction signal generation unit configured to generate a correction signal that accelerates a change with time for a display element having a small change with time and performs a slowdown or a stop of the change with time for a display element having a large change with time, based on a value of the video signal and time-varying characteristics of a luminance of each display element. When the display apparatus is not used after a normal image is displayed based on the video signal, a corrected image based on the correction signal is displayed to equalize a degree of the change with time of each display element.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 18, 2014
    Inventors: Yohei Funatsu, Hidehisa Shimizu, Shoji Araki, Yuki Seo
  • Patent number: 8896758
    Abstract: A video signal processing circuit includes: a control unit that calculates a luminance integrated value on the basis of an input video signal and performs luminance control for the video signal on the basis of the calculated luminance integrated value, wherein the control unit calculates the luminance integrated value at a period shorter than time equivalent to one frame.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: November 25, 2014
    Assignee: Sony Corporation
    Inventor: Yohei Funatsu
  • Publication number: 20140176620
    Abstract: An image processing device includes a control section configured to determine, based on first luminance information for each display pixel, frame luminance information in a single frame and current information. The current information indicates a magnitude of a current that is expected to be consumed in displaying the single frame on a display section. The control section is configured to control, based on the frame luminance information and the current information, light-emitting luminance of the display section.
    Type: Application
    Filed: December 13, 2013
    Publication date: June 26, 2014
    Applicant: Sony Corporation
    Inventors: Tomoya Yano, Yohei Funatsu, Yasuo Inoue
  • Publication number: 20140176403
    Abstract: There is provided a self-luminous display device including a deterioration amount acquisition section configured to acquire a cumulative deterioration amount for each of a plurality of pixels arranged in a matrix shape on a screen, each of the pixels including a light emitting element which emits light by itself in accordance with a current amount, a deterioration amount calculation section configured to calculate a deterioration amount when an image is displayed based on a supplied video signal in each of the pixels by using a deterioration characteristic determined in accordance with a luminance of the video signal, and a cumulative information update section configured to reflect the cumulative deterioration amount acquired by the deterioration amount acquisition section in the deterioration amount calculated by the deterioration amount calculation section, and to update the reflected cumulative deterioration amount as a new cumulative deterioration amount.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 26, 2014
    Applicant: Sony Corporation
    Inventors: Yasuo Inoue, Yohei Funatsu, Takashi Uchida
  • Publication number: 20140176623
    Abstract: Provided is a self-luminous display device including a data calculation section configured to calculate, by using a supplied video signal, data relating to a luminance amount accumulated in a unit of a first block in a target region for luminance control in a screen on which a plurality of pixels are arranged in a matrix, each of the pixels including a light emitting element which emits light by itself according to a current amount, a resampling section configured to resample the data relating to the luminance amount in the target region, in a unit of a second block, the data relating to the luminance amount being calculated by the data calculation section, the second block being larger than the first block, and a scaling section configured to generate data for luminance control in the target region by scaling the data resampled by the resampling section.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 26, 2014
    Applicant: Sony Corporation
    Inventors: Yasuo Inoue, Yohei Funatsu, Hidehisa Shimizu, Takashi Uchida
  • Publication number: 20130342587
    Abstract: A display includes: a gain calculation section obtaining, according to an area of a high luminance region in a frame image, a first gain for each pixel in the region; a determination section determining, based on first luminance information for each pixel in the high luminance region and the first gain, second luminance information for each pixel in the high luminance region; and a display section performing display based on the second luminance information.
    Type: Application
    Filed: June 4, 2013
    Publication date: December 26, 2013
    Inventors: MAKOTO NAKAGAWA, TOMOYA YANO, MITSUYASU ASANO, YASUO INOUE, YOHEI FUNATSU
  • Publication number: 20120320274
    Abstract: A video signal processing circuit includes: a control unit that calculates a luminance integrated value on the basis of an input video signal and performs luminance control for the video signal on the basis of the calculated luminance integrated value, wherein the control unit calculates the luminance integrated value at a period shorter than time equivalent to one frame.
    Type: Application
    Filed: April 30, 2012
    Publication date: December 20, 2012
    Applicant: Sony Corporation
    Inventor: Yohei Funatsu