Patents by Inventor Motomitsu Itoh

Motomitsu Itoh 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: 9417379
    Abstract: A liquid crystal display device (10) is provided with the following: an LED (17); a liquid crystal panel (11); a light guide plate (16) disposed so as to overlap the liquid crystal panel (11); an optical member (15) disposed between the liquid crystal panel (11) and the light guide plate (16); a holding member (HM) having a frame (13) and a chassis (14) for holding in a sandwiched manner the liquid crystal panel (11), the optical member (15) and the light guide plate (16); a first object of positioning determination unit (33) disposed at the edge of the light guide plate (16); a positioning determination unit (31) disposed on the frame (13) and for determining the position of the light guide plate (16) in a direction following the plate surface by causing uneven engagement of the light guide plate with respect to the first object of positioning determination unit (33); and a light-shielding sheet (35) for blocking direct incidence of light from the first object of positioning determination unit (33) on the li
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: August 16, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yusuke Masuda, Motomitsu Itoh
  • Patent number: 9417473
    Abstract: A display device 10 according to this invention includes a display panel 11, a drive board 113, a flexible wiring 111, and a frame 13. The display panel 11 is configured to display an image on a front side. The drive board 113 is configured to control display driving of the display panel 11. The flexible wiring 111 having flexibility connects the display panel 11 and the drive board 113 electrically. The frame 13 includes a frame portion 13a, a sidewall 13b, and a housing portion 13c. The frame portion 13a has a frame-like shape that is opposite a peripheral area of the front side of the display panel 11. The sidewall 13b extends from the frame portion 13a toward a rear side of the display panel 11 and surrounds the display panel 11. The housing portion 13c is located inside the sidewall 13b and includes the groove 13c1 that opens to the frame portion 13a. The housing portion 13c holds the drive board 113 fitted in the groove 13c1.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: August 16, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tsuyoshi Ozeki, Motomitsu Itoh
  • Publication number: 20160098143
    Abstract: The present invention provides a touch panel substrate capable of preventing a detection circuit from being broken down due to application of electrostatic voltage. The touch panel substrate includes a flexible substrate (20) for electrically connecting sensor electrodes (12) and a touch controller (32) to each other. The flexible electrode (20) has one end connected to a terminal section (13) including terminals. The touch panel substrate is further provided with a shielding electrode (14), on an outer side of the terminal section (13).
    Type: Application
    Filed: February 24, 2014
    Publication date: April 7, 2016
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kazutoshi KIDA, Masayuki MIYAMOTO, Motomitsu ITOH, Kazuya YOSHIMURA
  • Publication number: 20150015798
    Abstract: A liquid crystal display device (10) is provided with the following: an LED (17); a liquid crystal panel (11); a light guide plate (16) disposed so as to overlap the liquid crystal panel (11); an optical member (15) disposed between the liquid crystal panel (11) and the light guide plate (16); a holding member (HM) having a frame (13) and a chassis (14) for holding in a sandwiched manner the liquid crystal panel (11), the optical member (15) and the light guide plate (16); a first object of positioning determination unit (33) disposed at the edge of the light guide plate (16); a positioning determination unit (31) disposed on the frame (13) and for determining the position of the light guide plate (16) in a direction following the plate surface by causing uneven engagement of the light guide plate with respect to the first object of positioning determination unit (33); and a light-shielding sheet (35) for blocking direct incidence of light from the first object of positioning determination unit (33) on the li
    Type: Application
    Filed: January 25, 2013
    Publication date: January 15, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yusuke Masuda, Motomitsu Itoh
  • Publication number: 20140375899
    Abstract: A display device 10 according to this invention includes a display panel 11, a drive board 113, a flexible wiring 111, and a frame 13. The display panel 11 is configured to display an image on a front side. The drive board 113 is configured to control display driving of the display panel 11. The flexible wiring 111 having flexibility connects the display panel 11 and the drive board 113 electrically. The frame 13 includes a frame portion 13a, a sidewall 13b, and a housing portion 13c. The frame portion 13a has a frame-like shape that is opposite a peripheral area of the front side of the display panel 11. The sidewall 13b extends from the frame portion 13a toward a rear side of the display panel 11 and surrounds the display panel 11. The housing portion 13c is located inside the sidewall 13b and includes the groove 13c1 that opens to the frame portion 13a. The housing portion 13c holds the drive board 113 fitted in the groove 13c1.
    Type: Application
    Filed: January 30, 2013
    Publication date: December 25, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Tsuyoshi Ozeki, Motomitsu Itoh
  • Patent number: 8894230
    Abstract: A liquid crystal display device (10) includes: LEDs (17); a liquid crystal panel (11); a light guide plate (16); an exterior member that constitutes the exterior of the liquid crystal display device (10), the exterior member including a frame (13) and a chassis (14) that hold the liquid crystal panel (11) and the light guide plate (16) by sandwiching these from the display surface (11c) side and the opposite side thereto, while housing the LEDs (17) between the frame (13) and the chassis (14); a screw member (SM) that affixes the frame (13) and the chassis (14) to each other by being disposed in an outer edge portion that surrounds the liquid crystal panel (11); wiring members (28) that are connected to the LEDs (17); and wiring passages (30) through which the wiring members (28) pass, the wiring passages being formed in the inner surfaces of the side walls (13b), which is the outer edge portions of the frame (13), the wiring passages being positioned adjacent to the screw member (SM) in the direction in whic
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: November 25, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masatoshi Tomomasa, Motomitsu Itoh
  • Publication number: 20140240606
    Abstract: A liquid crystal display device (10) includes: LEDs (17); a liquid crystal panel (11); a light guide plate (16); an exterior member that constitutes the exterior of the liquid crystal display device (10), the exterior member including a frame (13) and a chassis (14) that hold the liquid crystal panel (11) and the light guide plate (16) by sandwiching these from the display surface (11c) side and the opposite side thereto, while housing the LEDs (17) between the frame (13) and the chassis (14); a screw member (SM) that affixes the frame (13) and the chassis (14) to each other by being disposed in an outer edge portion that surrounds the liquid crystal panel (11); wiring members (28) that are connected to the LEDs (17); and wiring passages (30) through which the wiring members (28) pass, the wiring passages being formed in the inner surfaces of the side walls (13b), which is the outer edge portions of the frame (13), the wiring passages being positioned adjacent to the screw member (SM) in the direction in whic
    Type: Application
    Filed: September 26, 2012
    Publication date: August 28, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masatoshi Tomomasa, Motomitsu Itoh
  • Publication number: 20140226080
    Abstract: A liquid crystal display unit (10) includes: an LED (17); a heat dissipating member (19) to which the LED (17) is attached; a liquid crystal panel (11) that performs display using light of the LED (17); a flexible substrate (22) connected to an edge of the liquid crystal panel (11); a light guide plate (16) disposed on a side of the liquid crystal panel (11) opposite to a display surface (11c) of the liquid crystal panel (11), the light guide plate being disposed such that an end face of the light guide plate faces the LED (17); holding members (HM) that hold and sandwich the liquid crystal panel (11) and the light guide plate (16) from the side of the display surface (11c) and from the side opposite thereto; and a light-shielding member (26) disposed on the heat dissipating member (19), the light-shielding member being interposed between the liquid crystal panel (11) and the LED (17) for preventing light from the LED (17) from directly entering the liquid crystal panel (11), the light shielding part (26) bei
    Type: Application
    Filed: September 3, 2012
    Publication date: August 14, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masatoshi Tomomasa, Motomitsu Itoh
  • Patent number: 8487864
    Abstract: In one embodiment of the present invention, a display device includes: a display section in which a plurality of data signal lines and a plurality of scan signal lines are provided, the display section including (i) a first region including some of the plurality of scan signal lines to which a first scan signal is sequentially supplied and (ii) a second region including the others of the plurality of scan signal lines to which a second scan signal is sequentially supplied; and waveform adjusting sections for causing the first scan signal to have a waveform, during an active period, which is different from a waveform which the second scan signal has during an active period. This allows a display device, which drives a display section divided into a plurality of regions, to reduce a difference in luminance between the regions.
    Type: Grant
    Filed: May 26, 2008
    Date of Patent: July 16, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Motomitsu Itoh
  • Patent number: 8390652
    Abstract: One object of an embodiment of the present invention is to provide a drive control circuit for a display device which is capable of displaying high-quality color images suited for external environment, display contents or the like by fully utilizing high representational capability of a display panel of multi-primary color configuration. A liquid-crystal color-display device includes a conversion circuit for adjusting a level of primary-color signals which represent the color images to be displayed. The conversion circuit receives four primary-color signals R1, G1, B1, W1 corresponding to four primary colors of red, green, blue and white as data signal for the color image display; then adjusts the level of these primary-color signals R1, G1, B1, W1 based on an externally inputted primary-color control signal; and outputs primary-color signals R2, G2, B2, W2 which are signals obtained by the adjustment.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: March 5, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuhiro Nakanishi, Motomitsu Itoh
  • Publication number: 20110211139
    Abstract: A liquid crystal display device 1 includes a liquid crystal panel (display unit) 2 having a plurality of pixels P to display information on the liquid crystal panel 2. The liquid crystal display device 1 is provided with printed circuit boards 10, and flexible printed circuit boards 9 connected electrically with the printed circuit boards 10. The printed circuit boards 10 are mounted on a frame (mounting member) 13 at the substantially central portion on a longer side (one side) to which the flexible printed circuit boards 9 are connected in the vicinity of the flexible printed circuit boards 9.
    Type: Application
    Filed: August 3, 2009
    Publication date: September 1, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Motomitsu Itoh
  • Publication number: 20110199345
    Abstract: A liquid crystal display apparatus provided with a liquid crystal panel for displaying information includes a source driver having an amplifier output unit for outputting to each of a plurality of source wirings a source signal according to information to be displayed on the liquid crystal panel, a redundant wiring provided as a backup wiring for the source wirings, and a redundant amplifier capable of outputting to the redundant wiring a source signal according to information to be displayed on the liquid crystal panel, the redundant amplifier outputting to the redundant wiring and a source wiring to which to the redundant wiring is connected a corresponding source signal at a timing earlier than the amplifier output unit by a prescribed amount of time.
    Type: Application
    Filed: September 16, 2009
    Publication date: August 18, 2011
    Inventors: Naoki Yoshino, Motomitsu Itoh
  • Publication number: 20100231810
    Abstract: A display device has a display section provided with first and second areas each having formed therein data signal lines, scanning signal lines, and pixels. The scanning signal lines are individually scanned for each area so that a part (upper field) of a frame is displayed in the first area and a remaining part (lower field) of the frame is displayed in the second area. The scanning directions in the areas are identical. In display processing of a frame 0, the scanning signal line (G541) at the head of the second area is scanned one horizontal scanning period (1H) later than a scanning of the scanning signal line (G540) at the tail of the first area. In display processing of a frame 1 subsequent to the frame 0, the scanning signal line (G541) at the head of the second area is scanned at the same timing as a scanning of the scanning signal line (G540) at the tail of the first area.
    Type: Application
    Filed: September 17, 2008
    Publication date: September 16, 2010
    Inventor: Motomitsu Itoh
  • Publication number: 20100141850
    Abstract: In one embodiment of the present invention, a display device includes: a display section in which a plurality of data signal lines and a plurality of scan signal lines are provided, the display section including (i) a first region including some of the plurality of scan signal lines to which a first scan signal is sequentially supplied and (ii) a second region including the others of the plurality of scan signal lines to which a second scan signal is sequentially supplied; and waveform adjusting sections for causing the first scan signal to have a waveform, during an active period, which is different from a waveform which the second scan signal has during an active period. This allows a display device, which drives a display section divided into a plurality of regions, to reduce a difference in luminance between the regions.
    Type: Application
    Filed: May 26, 2008
    Publication date: June 10, 2010
    Inventor: Motomitsu Itoh
  • Publication number: 20100103201
    Abstract: One object of an embodiment of the present invention is to provide a drive control circuit for a display device which is capable of displaying high-quality color images suited for external environment, display contents or the like by fully utilizing high representational capability of a display panel of multi-primary color configuration. A liquid-crystal color-display device includes a conversion circuit for adjusting a level of primary-color signals which represent the color images to be displayed. The conversion circuit receives four primary-color signals R1, G1, B1, W1 corresponding to four primary colors of red, green, blue and white as data signal for the color image display; then adjusts the level of these primary-color signals R1, G1, B1, W1 based on an externally inputted primary-color control signal; and outputs primary-color signals R2, G2, B2, W2 which are signals obtained by the adjustment.
    Type: Application
    Filed: February 22, 2008
    Publication date: April 29, 2010
    Inventors: Kazuhiro Nakanishi, Motomitsu Itoh
  • Patent number: 7330172
    Abstract: An image display device controls the video signal and the lighting circuit according to the input video signal, so as to improve contrast, so that flicker or “bright black display”, which may be caused when the display characteristics do not match the human visual characteristics, is eliminated. The image display device includes a filter circuitry, in which a filter selecting circuit changes the filter characteristic according to the difference of a video signal and memory data stored in a memory circuit. The filter circuitry selects different filter characteristics for the display change from dark to bright and for the display change from bright to dark. This prevents display flicker, which may be caused due to saturation of human visual perception with respect to changes in gradation and illuminance level.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: February 12, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Motomitsu Itoh, Kazunori Mukai
  • Patent number: 6810156
    Abstract: Out of a plurality of pairs of input pixels that face each other across a pixel to be interpolated, that pair which exhibits the highest correlation is selected. Assume that this pair is composed of a first and a second pixel, that the sign of the difference between the value of the input pixel lying adjacently on the left of the first pixel and the value of the first pixel is a, that the sign of the difference between the value of the input pixel lying adjacently on the left of the second pixel and the value of the second pixel is c, that the sign of the difference between the value of the input pixel lying adjacently on the right of the first pixel and the value of the first pixel is b, and that the sign of the difference between the value of the input pixel lying adjacently on the right of the second pixel and the value of the second pixel is d. If a=c or b=d, the average value of the values of the first and second pixels is determined as the value of the pixel to be interpolated.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: October 26, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Motomitsu Itoh
  • Publication number: 20030201968
    Abstract: An image display device controls the video signal and the lighting circuit according to the input video signal, so as to improve contrast, so that flicker or “bright black display”, which may be caused when the display characteristics do not match the human visual characteristics, is eliminated. The image display device includes a filter circuitry, in which a filter selecting circuit changes the filter characteristic according to the difference of a video signal and memory data stored in a memory circuit. The filter circuitry selects different filter characteristics for the display change from dark to bright and for the display change from bright to dark. This prevents display flicker, which may be caused due to saturation of human visual perception with respect to changes in gradation and illuminance level.
    Type: Application
    Filed: March 19, 2003
    Publication date: October 30, 2003
    Inventors: Motomitsu Itoh, Kazunori Mukai