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).
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Patent number: 9240145Abstract: 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: GrantFiled: April 20, 2012Date of Patent: January 19, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Hideki Ichioka, Takayuki Murai, Naoko Kondoh
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Patent number: 8963800Abstract: 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: GrantFiled: February 3, 2012Date of Patent: February 24, 2015Assignee: Sharp Kabushiki KaishaInventors: Takayuki Murai, Hideki Ichioka, Kohji Fujiwara, Naoko Kondoh
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Patent number: 8836735Abstract: 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: GrantFiled: November 5, 2009Date of Patent: September 16, 2014Assignee: Sharp Kabushiki KaishaInventors: Kohji Fujiwara, Takayuki Murai, Hideki Ichioka
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Patent number: 8810611Abstract: 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: GrantFiled: March 16, 2010Date of Patent: August 19, 2014Assignee: Sharp Kabushiki KaishaInventors: Takayuki Murai, Kohji Fujiwara, Hideki Ichioka
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Publication number: 20140043380Abstract: 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: ApplicationFiled: April 20, 2012Publication date: February 13, 2014Applicant: SHARP KABUSHIKI KAISHAInventors: Hideki Ichioka, Takayuki Murai, Naoko Kondoh
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Publication number: 20130314458Abstract: 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: ApplicationFiled: February 3, 2012Publication date: November 28, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Takayuki Murai, Hideki Ichioka, Kohji Fujiwara, Naoko Kondoh
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Publication number: 20120112991Abstract: 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: ApplicationFiled: March 9, 2010Publication date: May 10, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Katsuteru Hashimoto, Katsuya Otoi, Hideki Ichioka, Kohji Fujiwara
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Publication number: 20120098876Abstract: 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: ApplicationFiled: March 16, 2010Publication date: April 26, 2012Applicant: Sharp Kabushiki KaishaInventors: Takayuki Murai, Kohji Fujiwara, Hideki Ichioka
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Publication number: 20120086684Abstract: 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: ApplicationFiled: March 26, 2010Publication date: April 12, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Hideki Ichioka, Takayuki Murai, Kohji Fujiwara
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Publication number: 20120086628Abstract: 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: ApplicationFiled: March 26, 2010Publication date: April 12, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Hideki Ichioka, Takayuki Murai, Kohji Fujiwara
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Publication number: 20120086740Abstract: 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: ApplicationFiled: March 3, 2010Publication date: April 12, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Takayuki Murai, Kohji Fujiwara, Hideki Ichioka
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Publication number: 20120075362Abstract: 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: ApplicationFiled: February 2, 2010Publication date: March 29, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Hideki Ichioka, Kohji Fujiwara
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Publication number: 20120013646Abstract: 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: ApplicationFiled: May 21, 2009Publication date: January 19, 2012Applicant: Sharp Kabushiki KaishaInventors: Hideki Ichioka, Toshiharu Kusumoto
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Publication number: 20110273488Abstract: 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: ApplicationFiled: November 5, 2009Publication date: November 10, 2011Inventors: Kohji Fujiwara, Takayuki Murai, Hideki Ichioka
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Publication number: 20110157489Abstract: 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: ApplicationFiled: July 10, 2009Publication date: June 30, 2011Applicant: Sharp Kabushiki KaishaInventors: Hideki Ichioka, Toshiharu Kusumoto
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Publication number: 20110149180Abstract: 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: ApplicationFiled: May 22, 2009Publication date: June 23, 2011Applicant: Sharp Kabushiki KaishaInventors: Hideki Ichioka, Toshiharu Kusumoto, Kenji Nishida
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Publication number: 20110141379Abstract: 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: ApplicationFiled: May 22, 2009Publication date: June 16, 2011Applicant: Sharp Kabushiki KaishaInventors: Hideki Ichioka, Toshiharu Kusumoto, Kenji Nishida
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Publication number: 20110134324Abstract: 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: ApplicationFiled: July 13, 2009Publication date: June 9, 2011Applicant: Sharp Kabushiki KaishaInventors: Hideki Ichioka, Toshiharu Kusumoto, Kenji Nishida, Kentaro Uekane
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Patent number: 7944520Abstract: 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: GrantFiled: June 14, 2007Date of Patent: May 17, 2011Assignee: Sharp Kabushiki KaishaInventors: Hideki Ichioka, Tomohiko Yamamoto
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Patent number: 7944521Abstract: 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: GrantFiled: June 14, 2007Date of Patent: May 17, 2011Assignee: Sharp Kabushiki KaishaInventors: Hideki Ichioka, Tomohiko Yamamoto