Patents by Inventor Hideki Ichioka

Hideki Ichioka 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: 9240145
    Abstract: A multi-display device includes an image-display-light emitting backlight which includes a light emitting element arranged in each of a plurality of areas to emit light to form planar light; and a light emission controller configured or programmed to generate emission luminance data, for each of the areas, to drive the light emitting element. The light emission controller includes a luminance correcting controller configured or programmed to correct the emission luminance data on the basis of installation directions of image display devices and connection information that is information on connection positions thereof.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: January 19, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hideki Ichioka, Takayuki Murai, Naoko Kondoh
  • Patent number: 8963800
    Abstract: In order to display an image with a high contrast ratio while suppressing power consumed by a multi-display device and to adjust brightness of images displayed on image display devices, the multi-display device includes light emission APL value adjusting means 102. The light emission APL value adjusting means 102 sends, to light emission control means, a light emission APL value that has been adjusted, on the basis of light emission APL values calculated by light emission APL value calculating means of image display devices 11 to 19, so that total light emission power value of image-display light-emitting means 6 does not exceed an allowable power value and images are displayed at predetermined brightness.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: February 24, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takayuki Murai, Hideki Ichioka, Kohji Fujiwara, Naoko Kondoh
  • Patent number: 8836735
    Abstract: Under management by a main microcomputer, an LED controller performs, along at least two directions within a plane of planar light formed by LEDs arranged in a matrix, brightness correction processing for adjusting the distribution of brightness of the planar light on light source color video signals to convert them into light source color video signals.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: September 16, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohji Fujiwara, Takayuki Murai, Hideki Ichioka
  • Patent number: 8810611
    Abstract: A method is disclosed for controlling a light source installed in a liquid crystal display device. An embodiment includes a liquid crystal display panel for displaying an image by virtue of having liquid crystals whose orientation changes in response to application of a voltage; a backlight unit with a built-in PWM light modulation type LED for emitting light to be supplied to the liquid crystal display panel; and a control unit for controlling the liquid crystal display panel and the backlight unit. When the response speed of liquid crystal molecules is relatively high, the LED is driven at a relatively low drive frequency, and when the response speed of the liquid crystal molecules is relatively low, the LED is driven at a relatively high drive frequency.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: August 19, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takayuki Murai, Kohji Fujiwara, Hideki Ichioka
  • Publication number: 20140043380
    Abstract: A multi-display device M1 includes image-display-light emitting means 6 for causing a light emitting element 62 arranged in each of a plurality of areas 600 to emit light to form planar light; and light emission control means 5 for generating emission luminance data, for each of the areas 600, for driving the light emitting element 62. The light emission control means 5 includes luminance correcting means 56 for correcting the emission luminance data on the basis of installation directions of image display devices 11 to 19 and connection information that is information on connection positions thereof.
    Type: Application
    Filed: April 20, 2012
    Publication date: February 13, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hideki Ichioka, Takayuki Murai, Naoko Kondoh
  • Publication number: 20130314458
    Abstract: In order to display an image with a high contrast ratio while suppressing power consumed by a multi-display device and to adjust brightness of images displayed on image display devices, the multi-display device includes light emission APL value adjusting means 102. The light emission APL value adjusting means 102 sends, to light emission control means, a light emission APL value that has been adjusted, on the basis of light emission APL values calculated by light emission APL value calculating means of image display devices 11 to 19, so that total light emission power value of image-display light-emitting means 6 does not exceed an allowable power value and images are displayed at predetermined brightness.
    Type: Application
    Filed: February 3, 2012
    Publication date: November 28, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Takayuki Murai, Hideki Ichioka, Kohji Fujiwara, Naoko Kondoh
  • Publication number: 20120112991
    Abstract: An embodiment of a liquid crystal display device includes: a liquid crystal panel including pixels arranged in a pixel; and a backlight that irradiates it with light. In at least one example embodiment, the pixels included in the liquid crystal panel each include picture elements different in color. The picture elements are each provided with a color filter corresponding to the color of the picture element. The liquid crystal display device includes: an aperture ratio converting section that, to reduce optical cross talk, decreases an aperture ratio for inputted image data and outputs data of the aperture ratio; and a backlight data converting section that, to supplement the aperture ratio for the image data which is decreased by the aperture ratio converting section, converts data to increase a backlight luminance. This backlight luminance control prevents or reduces optical or electrical cross talk.
    Type: Application
    Filed: March 9, 2010
    Publication date: May 10, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Katsuteru Hashimoto, Katsuya Otoi, Hideki Ichioka, Kohji Fujiwara
  • Publication number: 20120098876
    Abstract: A method is disclosed for controlling a light source installed in a liquid crystal display device. An embodiment includes a liquid crystal display panel for displaying an image by virtue of having liquid crystals whose orientation changes in response to application of a voltage; a backlight unit with a built-in PWM light modulation type LED for emitting light to be supplied to the liquid crystal display panel; and a control unit for controlling the liquid crystal display panel and the backlight unit. When the response speed of liquid crystal molecules is relatively high, the LED is driven at a relatively low drive frequency, and when the response speed of the liquid crystal molecules is relatively low, the LED is driven at a relatively high drive frequency.
    Type: Application
    Filed: March 16, 2010
    Publication date: April 26, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Takayuki Murai, Kohji Fujiwara, Hideki Ichioka
  • Publication number: 20120086684
    Abstract: Disclosed is a liquid crystal display device including: a VA-IPS mode liquid crystal display panel; a backlight unit incorporating a PWM dimming type light source; and a control unit that controls the liquid crystal display panel and the backlight unit, in which the control unit obtains response speed data of orientation change of liquid crystal molecules, and changes a duty factor of a PWM dimming signal according to the response speed data. In a case where the response speed of the liquid crystal molecules is relatively high, LEDs are driven with a relatively small duty factor. In a case where the response speed of the liquid crystal molecules is relatively low, the LEDs are driven with a relatively large duty factor, and black insertion is not performed. The liquid crystal display device prevents an image quality malfunction (multiple outlines).
    Type: Application
    Filed: March 26, 2010
    Publication date: April 12, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hideki Ichioka, Takayuki Murai, Kohji Fujiwara
  • Publication number: 20120086628
    Abstract: Disclosed is a liquid crystal display device including: a liquid crystal display panel; a backlight unit incorporating a PWM dimming type light source; and a control unit that controls the liquid crystal display panel and the backlight unit. The control unit obtains response speed data of orientation change of liquid crystal molecules, and changes a duty factor of a PWM dimming signal according to the response speed data. In a case where the response speed of the liquid crystal molecules is relatively high, LEDs are driven with a relatively small duty factor. In a case where the response speed of the liquid crystal molecules is relatively low, the LEDs are driven with a relatively large duty factor, and black insertion is not performed. The liquid crystal display device prevents an image quality malfunction that is apt to occur depending on the degrees of inclination of the liquid crystal molecules.
    Type: Application
    Filed: March 26, 2010
    Publication date: April 12, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hideki Ichioka, Takayuki Murai, Kohji Fujiwara
  • Publication number: 20120086740
    Abstract: In at least one example embodiment, the present invention includes a liquid crystal display panel for displaying an image by virtue of having liquid crystals whose orientation changes in response to application of a voltage; a backlight unit with a built-in PWM light modulation type LED for emitting light to be supplied to the liquid crystal display panel; and a control unit for controlling the liquid crystal display panel and the backlight unit. In cases where the response speed of liquid crystal molecules is relatively high, the LED is driven at a relatively low drive frequency, whereas in cases where the response speed of the liquid crystal molecules is relatively low, the LED is driven at a relatively high drive frequency. According to the present invention, problems with image quality that tend to occur depending on the degree of tilting of the liquid crystal molecules (ghost outlines) are prevented.
    Type: Application
    Filed: March 3, 2010
    Publication date: April 12, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Takayuki Murai, Kohji Fujiwara, Hideki Ichioka
  • Publication number: 20120075362
    Abstract: In an LCD data calculation section, a base data calculation section calculates LCD data before temperature compensation based on an input image and display luminance of each area of a backlight, a scene change detection section detects a scene change point at which the amount of change of the input image increases, based on the input image, and an LUT selection and application section acquires an appropriate table corresponding to the temperature of a liquid crystal panel from a temperature compensation LUT, and applies the table at the scene change point, thereby outputting LCD data subjected to temperature compensation. Thus, temperature compensation can be performed without adversely affecting display luminances of the backlight, making it possible to correctly provide tone display without uneven luminances even in the case of area-active drive.
    Type: Application
    Filed: February 2, 2010
    Publication date: March 29, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hideki Ichioka, Kohji Fujiwara
  • Publication number: 20120013646
    Abstract: A television receiver according to at least one embodiment of the present invention includes a display section capable of displaying a TV image and a harmonious image being in harmony with a wall surface against which the image display device is provided.
    Type: Application
    Filed: May 21, 2009
    Publication date: January 19, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hideki Ichioka, Toshiharu Kusumoto
  • Publication number: 20110273488
    Abstract: Under management by a main microcomputer, an LED controller performs, along at least two directions within a plane of planar light formed by LEDs arranged in a matrix, brightness correction processing for adjusting the distribution of brightness of the planar light on light source color video signals to convert them into light source color video signals.
    Type: Application
    Filed: November 5, 2009
    Publication date: November 10, 2011
    Inventors: Kohji Fujiwara, Takayuki Murai, Hideki Ichioka
  • Publication number: 20110157489
    Abstract: A liquid crystal display device is disclosed. In at least one embodiment, it includes an ornamental image display area for displaying an ornamental image thereon is configured such that the ornamental image display area provides a luminance of not more than 50 cd/m2 for display of the ornamental image thereon.
    Type: Application
    Filed: July 10, 2009
    Publication date: June 30, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hideki Ichioka, Toshiharu Kusumoto
  • Publication number: 20110149180
    Abstract: A decorative image is disclosed. In at least one embodiment it is displayed in a decorative image display region and a decorative frame is displayed in a peripheral section of the decorative image so that the decorative frame has a width that is not less than onefold of the width of a frame structure. This makes it possible (i) to make the frame structure that is an actual part of a television receiver less conspicuous and (ii) also to display a decorative image as though the decorative image had a real frame. Consequently, it becomes possible to realize a television receiver that can be used as a part of an interior.
    Type: Application
    Filed: May 22, 2009
    Publication date: June 23, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hideki Ichioka, Toshiharu Kusumoto, Kenji Nishida
  • Publication number: 20110141379
    Abstract: A decorative image is displayed in a decorative image display region; a decorative frame is displayed in a peripheral section of the decorative image so that the decorative frame includes at least one color that is in a same range as a color of a frame structure. This makes it possible (i) to make the frame structure that is an actual part of a television receiver less conspicuous and (ii) also to display a decorative image as though the decorative image had a real frame. Consequently, it becomes possible to realize a television receiver that can be used as a part of an interior.
    Type: Application
    Filed: May 22, 2009
    Publication date: June 16, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hideki Ichioka, Toshiharu Kusumoto, Kenji Nishida
  • Publication number: 20110134324
    Abstract: A decorative image is displayed in a decorative image display region; in the decorative image, a decorative frame is displayed in a peripheral section of a decorative frame display region, and the decorative frame display region has a surface luminance higher than that of the decorative image display region.
    Type: Application
    Filed: July 13, 2009
    Publication date: June 9, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hideki Ichioka, Toshiharu Kusumoto, Kenji Nishida, Kentaro Uekane
  • Patent number: 7944520
    Abstract: A liquid crystal display apparatus includes a liquid crystal display panel, a backlight system, a driving circuit board for driving the liquid crystal display panel and the backlight system, and a housing for housing the foregoing members. A metal plate is provided between the backlight system and the driving circuit board, which metal plate has a plane surface on a front and back surface which is broader than the backlight system and the driving circuit board. On at least a pair of opposed edges of the metal plate, at least one of a falling portion and a rising portion is provided along the edges of the metal plate. Further, a bezel is provided between the housing and at least one of the falling portion and rising portion, which bezel is arranged so as to integrally support the metal plate and at least the liquid crystal display panel and the backlight system.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: May 17, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hideki Ichioka, Tomohiko Yamamoto
  • Patent number: 7944521
    Abstract: A display apparatus includes a liquid crystal display panel, a front side viscoelastic layer, a front side hard layer, a back side viscoelastic layer, a back side hard layer, a backlight unit, a driving circuit board, and a metal plate. The front side viscoelastic layer that is viscoelastic covers a display surface of the liquid crystal display panel. The front side hard layer has a higher modulus of elasticity than the front side viscoelastic layer. The back side viscoelastic layer that is viscoelastic covers a back surface of the liquid crystal display panel. The back side hard layer has a higher modulus of elasticity than the back side viscoelastic layer. The back side viscoelastic layer has a thickness Tb of not less than about 20 ?m, and the front side viscoelastic layer has a thickness Ta and satisfies: Ta/Tb>1 (Tb?0).
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: May 17, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hideki Ichioka, Tomohiko Yamamoto