Patents by Inventor Makoto Shiomi

Makoto Shiomi 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: 20150302814
    Abstract: In a frame 1, a sum total of luminance of a sub-pixel (SRX) and a sub-pixel (SRx) is caused to correspond to pixel data (DR1) while setting luminance of a sub-pixel (SRX) which is provided in a pixel (PRX) of a picture element (EX) to be higher than luminance of the sub-pixel (SRx) which is close to the sub-pixel (SRX) in the vertical direction in the pixel (PRX), and in a frame 2, a sum total of luminance of the sub-pixel (SRX) and the sub-pixel (SRx) is caused to correspond to pixel data (dR2) while setting luminance of the sub-pixel (SRx) to be higher than luminance of the sub-pixel (SRX).
    Type: Application
    Filed: December 26, 2013
    Publication date: October 22, 2015
    Inventor: Makoto SHIOMI
  • Patent number: 9128298
    Abstract: A three-dimensional image display apparatus polarizes light to be emitted from a first pixels into light having a first polarization characteristic and polarizes light to be emitted from second pixels into light having a second polarization characteristic. The three-dimensional image display apparatus, sets luminance of at least one of luminance of a left-eye image or luminance of a right-eye image such that the luminance of a predefined first image of the left-eye image or the right-eye image is higher than the luminance of a second image of the images. The three-dimensional image display apparatus causes the first pixels to render the first image at the set luminance on a screen and causes the second pixels to render the second image at the set luminance on the screen.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: September 8, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Makoto Shiomi, Tatsunori Nakamura
  • Patent number: 9105243
    Abstract: A liquid crystal driving circuit controls operations of display areas in a liquid crystal display panel based on a plural pieces of divided image data which are prepared by dividing image data for a single screen in accordance with the display areas in the liquid crystal display panel. In response to an luminance signal corresponding to an LED resolution generated by an LED resolution signal generating circuit based on image data for a single screen which is not divided, the LED driving circuit controls operations of LEDs provided in a backlight unit. With the configuration of at least one embodiment, according to a liquid crystal display device including a backlight, in a case where display image data for a single screen is divided into a plural pieces of divided image data for a plurality of areas of a display screen and images to be displayed in the plurality of areas are controlled based on the plural pieces of divided image data, display quality in a border area of the plurality of areas can be improved.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: August 11, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Makoto Shiomi
  • Publication number: 20150194108
    Abstract: The liquid crystal display apparatus according to an embodiment of the present invention has a plurality of pixels including a red pixel, a green pixel and a blue pixel. In at least one example embodiment, each of the plurality of pixels has a plurality of subpixels including a first subpixel and a second subpixel. When the grayscale levels of input signals corresponding to the red, green and blue pixels are equal to one another at a given level, the ratio of the difference in luminance between the first and second subpixels of one of the red, green and blue pixels to the maximum luminance of that one of the red, green and blue pixels is greater than the ratio of the difference in luminance between the first and second subpixels of each one of the other two pixels to the maximum luminance of the respective one of the other two pixels.
    Type: Application
    Filed: February 16, 2015
    Publication date: July 9, 2015
    Inventor: Makoto SHIOMI
  • Patent number: 9052558
    Abstract: Data signal lines are provided to pixel arrays such that adjacent first and second pixel arrays (?, ?) and including plural pixels are provided with two data signal lines each. Each pixel includes a pixel electrode (17a). The two scanning signal lines (16a, 16b) are selected concurrently. Respective pixel electrodes (17a, 17b) for pixels (101, 102) are connected with a data signal line (15x) and a data signal line (15y), respectively. Input gray scales of data signals inputted to the display device externally is corrected such that if input gray scales of data signals to be supplied respectively to the pixel electrodes (17a, 17b) are different from each other, the input gray scales are corrected to cause a gray scale difference between post-correction gray scales to be greater than that between the input gray scales. Display is carried out with the post-correction gray scales.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: June 9, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Makoto Shiomi
  • Publication number: 20150138488
    Abstract: The implementation of a superhigh-definition liquid crystal display device with a diagonal of 30 inches or more and a resolution of 100 ppi or more is facilitated. There is provided a direct-view-type liquid crystal display device that includes a display portion in which a plurality of pixels are placed in a matrix, the display portion whose diagonal is 30 inches or more, in which the resolution of the display portion is 100 pixels or more per inch, the plurality of pixels include first to fourth pixels, and one of the first to fourth pixels is an RG-type formed of a red subpixel and a green subpixel and another of the first to fourth pixels is a BH-type formed of a blue subpixel and a green, yellow, or white subpixel.
    Type: Application
    Filed: May 16, 2013
    Publication date: May 21, 2015
    Inventor: Makoto Shiomi
  • Patent number: 9018632
    Abstract: A TFT substrate is provided in which a wire defect can be easily solved. A method of solving a wire defect in the TFT substrate is also provided. In an embodiment, the TFT substrate is configured so that (i) a plurality of gate lines and a plurality of source lines are arranged in a matrix manner, (ii) a TFT is provided in at least one of intersection regions where the plurality of gate lines and the plurality of source lines intersect with each other, and (iii) the at least one of intersection regions is divided by a slit, which is formed in a corresponding one of the plurality of gate lines, so that the at least intersection region is divided into parts arranged along a longitudinal direction of the plurality of source lines.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: April 28, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Makoto Shiomi
  • Patent number: 8963966
    Abstract: Provided is a display driver circuit (50) which carries out frame interpolation and overshooting. An interpolation frame generation section (52) has (i) a first generation mode of generating, based on an image of a key frame corresponding to a video signal, an interpolation frame so that a position of an object is changed with passage of time and (ii) a second generation mode of generating, based on the image of the key frame, an interpolation frame so that a display gradation of the object is changed with passage of time. An overshooting section (53) causes an emphasis level in a tone transition for the interpolation frame generated according to the second generation mode to be different from that for the key frame. Thus, a configuration is proposed which can improve a moving image response characteristic in a display driver circuit which carries out frame interpolation and overshooting.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: February 24, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Makoto Shiomi
  • Patent number: 8957926
    Abstract: The liquid crystal display apparatus according to the present invention has a plurality of pixels including a red pixel, a green pixel and a blue pixel. In at least one example embodiment, each of the plurality of pixels has a plurality of subpixels including a first subpixel and a second subpixel. When the grayscale levels of input signals corresponding to the red, green and blue pixels are equal to one another at a given level, the ratio of the difference in luminance between the first and second subpixels of one of the red, green and blue pixels to the maximum luminance of that one of the red, green and blue pixels is greater than the ratio of the difference in luminance between the first and second subpixels of each one of the other two pixels to the maximum luminance of the respective one of the other two pixels.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: February 17, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Makoto Shiomi
  • Patent number: 8917293
    Abstract: Image data obtained by adding a dummy image to a periphery of inputted image data is divided into blocks which correspond to positions of LEDs. A light-emitting luminance of an LED in an image display area is determined in accordance with a maximum value among gradation values of pixels included in a block corresponding to the LED. A light-emitting luminance of an LED in an image non-display area is determined in accordance with an average luminance level of some of small blocks which are adjacent to the block corresponding to the LED in the image non-display area, the small blocks being obtained by further dividing a block of the image display area adjacent to the block corresponding to the LED.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: December 23, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Makoto Shiomi
  • Publication number: 20140312351
    Abstract: A TFT substrate is provided in which a wire defect can be easily solved. A method of solving a wire defect in the TFT substrate is also provided. In an embodiment, the TFT substrate is configured so that (i) a plurality of gate lines and a plurality of source lines are arranged in a matrix manner, (ii) a TFT is provided in at least one of intersection regions where the plurality of gate lines and the plurality of source lines intersect with each other, and (iii) the at least one of intersection regions is divided by a slit, which is formed in a corresponding one of the plurality of gate lines, so that the at least intersection region is divided into parts arranged along a longitudinal direction of the plurality of source lines.
    Type: Application
    Filed: April 23, 2012
    Publication date: October 23, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Makoto Shiomi
  • Patent number: 8786535
    Abstract: In one embodiment of the present invention, a driving method of a liquid crystal display device is disclosed.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: July 22, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Makoto Shiomi, Toshihisa Uchida, Toshihide Tsubata, Junichi Sawahata, Naoshi Yamada
  • Publication number: 20140092355
    Abstract: A first and second region of a display device includes a plurality of scanning signal lines, a plurality of pixel electrodes, and a plurality of holding capacitance wires to which modulation signals are supplied. The plurality of scanning signal lines in the first and second regions are independently scanned. The display device includes a first trunk to which the plurality of holding capacitance wires that form capacitors along with the pixel electrodes in the first region are connected, but to which the holding capacitance wires that form capacitors along with the pixel electrodes in the second region are not connected; and a second trunk to which the plurality of holding capacitance wires that form the capacitors along with the pixel electrodes in the second region are connected, but to which the holding capacitance wires that form the capacitors along with the pixel electrodes in the first region are not connected.
    Type: Application
    Filed: May 17, 2012
    Publication date: April 3, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Osamu Teranuma, Makoto Shiomi
  • Publication number: 20140085279
    Abstract: Data signal lines, scanning signal lines, and pixels are formed in each of first and second regions of a liquid crystal panel, and the first half of a current frame and the second half of the current frame are written to the first and second regions, respectively. A data signal with polarity inverted for each vertical scanning period is supplied to each data signal line. A scanning direction of the first region is identical to a scanning direction of the second region and the first and second regions are arranged to line up in this order in the scanning direction. In the first and second regions, the potential of the data signal is corrected according to a distance from a scanning start end portion.
    Type: Application
    Filed: May 15, 2012
    Publication date: March 27, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Makoto Shiomi
  • Patent number: 8670007
    Abstract: A control section divides a display screen into small regions, evaluates the relative brightness of each of the small regions in accordance with color data to be inputted as color data by which each pixel is displayed, and determines whether or not the display screen has a first small region that is brighter than the other small regions by a predetermined degree. Furthermore, the control section causes a first generating means to generate gradation data for use in the first small region, and causes a second generating means to generate gradation data for use in the other small regions. Even if the second generating section receives the same color data as the first generating section does, the second generating section limits the luminance of a W sub-pixel as compared to the first generating section. With this, the first small region can be displayed more strikingly brightly, so that a clearer, more realistic, and more appealing image can be displayed.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: March 11, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Makoto Shiomi
  • Publication number: 20130271436
    Abstract: A display control circuit of a liquid crystal display device generates a double-speed progressive image signal by changing an input image signal based on interlaced scanning into a progressive scanning mode, and also by doubling the frame frequency. With the double-speed progressive image signal, a pixel value equivalent to an odd-numbered scanning line in an odd-numbered frame remains unchanged, a pixel value equivalent to an even-numbered scanning line is replaced with a black pixel value, a pixel value equivalent to an even-numbered scanning line in an even-numbered frame remains unchanged, and a pixel value equivalent to an odd-numbered scanning line is replaced with a black pixel value. An image that the double-speed interlace image signal represents is displayed on a liquid crystal panel.
    Type: Application
    Filed: December 21, 2011
    Publication date: October 17, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Makoto Shiomi
  • Patent number: 8502917
    Abstract: The present invention is arranged such that interlace image data, which has been supplied, is converted to progressive image data in an I/P conversion section, and the image data converted to progressive style in the I/P conversion section is subjected to image processing including data comparison in spatial or time series manner, in an image processing section.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: August 6, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazunari Tomizawa, Makoto Shiomi, Hidekazu Miyata, Koichi Miyachi, Akihito Jinda
  • Patent number: 8493299
    Abstract: In cases where the amount of gradation transition is greater than a threshold value, a modulation processing section corrects image data D of a current frame by making an interpolation calculation with reference to a look-up table, and output the image data D thus corrected. In cases where the amount of gradation transition is not more than the threshold value, the modulation processing section directly outputs the image data D of the current frame.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: July 23, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Makoto Shiomi, Mitsuhiro Shigeta, Kazunari Tomizawa
  • Patent number: 8451201
    Abstract: The method of driving a liquid crystal display in accordance with one embodiment of the present invention is a method of driving a liquid crystal display whereby a first liquid crystal panels produces a display from a first display signal and the second liquid crystal panel produces a display a second display signal derived from the first display signal, the first and second liquid crystal panels being stacked on top of each other. The luminance of the first liquid crystal panel is extended based on the luminance extension ratio obtained from the gray levels for dots contained in the first display signal and a logical maximum gray level of input image data. The luminance of the second liquid crystal panel which produces a display from the second display signal is lowered by the amount by which luminance is extended on the first liquid crystal panel.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: May 28, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Mitsuaki Hirata, Masayuki Katakami, Toshihide Tsubata, Makoto Shiomi, Shigeaki Mizushima
  • Patent number: 8373809
    Abstract: In a liquid crystal display apparatus realizing a dual view display by bonding a liquid crystal panel and a parallax barrier, the parallax barrier separates display images by treating three pixels including R, G, and B pixels as one unit (one picture element). At this time, luminance variation due to crosstalk concentrates on a right-end pixel among the three pixels constituting the one picture element (in a case where each pixel receives data from a source line immediately on the left of the pixel). Accordingly, the right-end pixel is arranged to be a B pixel that has a low correlation with luminance information and in which influence of crosstalk is hard to be viewed. Further, an applied voltage to be supplied to the display pixel of the B (blue) color and an input gradation are set to have a relationship along a ? curve that makes luminance variation difficult to occur in a low luminance area.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: February 12, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Makoto Shiomi