Patents by Inventor Hideo Yoshimura

Hideo Yoshimura 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: 20140152716
    Abstract: A display device and a driving method thereof for reducing power consumption. The display device includes a plurality of pixels positioned at intersection portions of gate lines and data lines; a gate driver selectively driving the gate lines; a data driver supplying, to the data lines, data corresponding to the gate line selected from the gate lines; and a timing controller controlling the gate drive and the data driver. In the display device, the timing controller includes an order determination unit that compares data for each gate line and determines a driving order of the gate lines.
    Type: Application
    Filed: June 13, 2013
    Publication date: June 5, 2014
    Inventors: Ji-Gong Lee, Hideo Yoshimura, Sang-Jin Pak, Sang-Kwon Ha
  • Patent number: 8704784
    Abstract: A liquid crystal display (LCD) with a built-in touch screen includes: a first substrate including a pixel area having a plurality of pixels and a sensor area having a plurality of photosensors; a second substrate positioned over the first substrate, and including a color filter, a light receiving portion, a transparent electrode layer, and a front polarizing plate; an LCD panel including a liquid crystal layer interposed between the first and second substrates; and a touch screen driver circuit to sense a capacitance variation provided through a first sensing line connected to the transparent electrode layer when an object is in contact with the LCD panel, and to output position information of the object, sensed by using optical information sensed through a second sensing line connected the plurality of photosensors when the capacitance variation is greater than or equal to a predetermined threshold value.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: April 22, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Woo Park, Sang-Uk Kim, Hee-Chul Hwang, My-Kyung Jeon, Hideo Yoshimura
  • Publication number: 20140085322
    Abstract: A display device includes a driver connected to a display panel and transmitting scan signals or data signals to the display panel, a frame memory connected to the driver, storing image data and transmitting at least some of the image data to the driver, and a controller connected to the driver and the frame memory, generating a control signal and transmitting the control signal to the driver or the frame memory, wherein each of the sub-fields includes an address period in which the scan signals are transmitted to the respective pixel rows, the controller transmits the control signal to the driver to transmit the scan signals to the pixel rows during a current frame such that the scan signals corresponding to the current frame are transmitted after, among the image data corresponding to the current frame, the image data corresponding to the pixel rows are stored in the frame memory.
    Type: Application
    Filed: March 14, 2013
    Publication date: March 27, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Gong Lee, Sang Jin Pak, Hideo Yoshimura, Sang Kwon Ha
  • Publication number: 20130321332
    Abstract: A capacitive touch panel sensor includes a plurality of driving-lines in a first direction, a plurality of sensing-lines in a second direction, a scan signal generator configured to generate a scan signal corresponding to at least one scan pulse, and to output the scan signal to the driving-lines, and a capacitance detector configured to receive a capacitance sensing signal output from the sensing-lines, and to detect a touched location based on the capacitance sensing signal, wherein the scan signal generator is configured to output the scan signal during first noise avoidance time periods, each first noise avoidance time period being in a respective horizontal time period of a display driving operation, and wherein the capacitance detector is configured to receive the capacitance sensing signal during the first noise avoidance time periods.
    Type: Application
    Filed: May 23, 2013
    Publication date: December 5, 2013
    Inventor: Hideo YOSHIMURA
  • Patent number: 8599172
    Abstract: A flat panel display (FPD) with a photo sensor type built-in touch screen capable of performing a scan operation. The FPD with the built-in touch screen includes a plurality of unit pixels disposed in a display region of the FPD and arranged in pixel groups and photo sensors adjacent to the unit pixels of the respective pixel groups. In a scan operation mode, the plurality of unit pixels in each of the pixel groups sequentially emit light to perform a scan operation using the light emitted from the unit pixels and reflected by a scan object to be scanned to be incident on the photo sensors.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: December 3, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Woo Park, Sang-Uk Kim, Hee-Chul Hwang, Mu-Kyung Jeon, Hideo Yoshimura
  • Patent number: 8581883
    Abstract: A sensor scan driver may include a shift register unit for driving photodiodes, a transmission gate unit for changing a voltage range of sensor scan signals generated by the shift register unit, and a buffer unit for supplying the sensor scan signals supplied from the transmission gate unit to the photodiodes, wherein the transmission gate unit includes first and second transmission gates, each including an electrode adapted to receive an output signal of the shift register unit, another electrode adapted to receive the inverted output signal of the shift register unit, an input terminal coupled to first and second power sources, respectively, and an output terminal coupled to an output terminal of the transmission gate unit.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: November 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mu-Kyung Jeon, Sang-Uk Kim, Hee-Chul Hwang, Hideo Yoshimura, Jin-Woo Park
  • Publication number: 20120206383
    Abstract: A touch screen panel includes a display unit including a timing controller for receiving a vertical synchronizing signal and a horizontal synchronizing signal to display an image, a touch sensing unit including driving electrodes, a control signal generator for generating a control signal from the vertical synchronizing signal and the horizontal synchronizing signal, and a touch controller for supplying a driving signal to the touch sensing unit in response to the control signal from the control signal generator.
    Type: Application
    Filed: October 28, 2011
    Publication date: August 16, 2012
    Inventors: Sang-Kwon HA, Joo-Hyung Lee, Jin-Woo Park, Sang-Jin Pak, Ji-Gong Lee, Hideo Yoshimura
  • Publication number: 20120113339
    Abstract: An LCD with an integrated touch screen panel includes a first substrate having a plurality of pixels formed thereon, wherein each pixel of the plurality of pixels is provided with a thin film transistor and a pixel electrode. A second substrate facing the first substrate, having a plurality of common electrodes formed inside thereof. The plurality of common electrodes is arranged in a first direction to correspond to the plurality of pixels. A plurality of sensing electrodes is outside of the second substrate and arranged in a second direction intersecting the first direction. A liquid crystal layer is between the first and the second substrates. A common electrode driver sequentially supplies a driving signal to the common electrodes and supplies a compensation signal having a phase opposite to the driving signal to the common electrodes.
    Type: Application
    Filed: September 22, 2011
    Publication date: May 10, 2012
    Inventors: Jin-Woo Park, Hideo Yoshimura, Joo-Hyung Lee, Sang-Jin Pak, Cheol-Min Kim
  • Publication number: 20120105752
    Abstract: A liquid crystal display (LCD) with an integrated touch screen panel includes a plurality of pixels connected to a plurality of data lines and a plurality of gate lines, the gate lines being divided into a plurality of groups, a plurality of sensing electrodes, a plurality of common electrodes divided into a plurality of groups, a common electrode driver configured to simultaneously supply a driving signal to common electrodes within each group of the plurality of groups of the common electrodes, and to sequentially supply the driving signal to the plurality of groups of the common electrodes, and a gate driver configured to sequentially supply a gate signal to gate lines within each of the plurality of group of the gate lines.
    Type: Application
    Filed: September 21, 2011
    Publication date: May 3, 2012
    Inventors: Jin-Woo Park, Sang-Jin Pak, Jin-Hee Lee, Sang-Kwon Ha, Ji-Gong Lee, Hideo Yoshimura, Cheol-Min Kim, Joo-Hyung Lee
  • Patent number: 8169111
    Abstract: A brushless motor has a stator, a rotor rotatably disposed in an inner circumferential portion of the stator, and a resolver configured to detect a rotational position of the rotor with respect to the stator. The resolver has a resolver stator disposed at a fixed circumferential position with respect to the stator, and a resolver rotor disposed at a fixed circumferential position with respect to the rotor.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: May 1, 2012
    Assignee: Showa Corporation
    Inventor: Hideo Yoshimura
  • Publication number: 20120044171
    Abstract: A touch screen panel integrated liquid crystal display device in which a mutual capacitive touch screen panel is integrated with a liquid crystal display panel is provided. The device includes a first substrate, a plurality of pixels on the first substrate and including respective pixel electrodes, a second substrate facing the first substrate, a common electrode on a first surface of the second substrate facing the pixel electrodes, a plurality of sensor electrodes on a second surface of the second substrate and including a plurality of transparent pairs extending in a first direction and having a plurality of protrusions extending in a second direction crossing the first direction, and a liquid crystal layer between the substrates, wherein the device senses a touch position by detecting a change of capacitance applied to the sensor electrodes corresponding to an alternating current common voltage applied to the common electrode.
    Type: Application
    Filed: June 24, 2011
    Publication date: February 23, 2012
    Inventors: Jin-Hee Lee, Sang-Jin Pak, Hideo Yoshimura, Bum-Joon Kim, Sang-Kwon Ha, Jin-Woo Park, Joo-Hyung Lee
  • Publication number: 20110102365
    Abstract: A flat panel display (FPD) with a photo sensor type built-in touch screen capable of performing a scan operation. The FPD with the built-in touch screen includes a plurality of unit pixels disposed in a display region of the FPD and arranged in pixel groups and photo sensors adjacent to the unit pixels of the respective pixel groups. In a scan operation mode, the plurality of unit pixels in each of the pixel groups sequentially emit light to perform a scan operation using the light emitted from the unit pixels and reflected by a scan object to be scanned to be incident on the photo sensors.
    Type: Application
    Filed: September 30, 2010
    Publication date: May 5, 2011
    Applicant: Samsung Mobile Display Co., Ltd
    Inventors: Jin-Woo PARK, Sang-Uk Kim, Hee-Chul Hwang, Mu-Kyung Jeon, Hideo Yoshimura
  • Publication number: 20110096027
    Abstract: A sensor scan driver may include a shift register unit for driving photodiodes, a transmission gate unit for changing a voltage range of sensor scan signals generated by the shift register unit, and a buffer unit for supplying the sensor scan signals supplied from the transmission gate unit to the photodiodes, wherein the transmission gate unit includes first and second transmission gates, each including an electrode adapted to receive an output signal of the shift register unit, another electrode adapted to receive the inverted output signal of the shift register unit, an input terminal coupled to first and second power sources, respectively, and an output terminal coupled to an output terminal of the transmission gate unit.
    Type: Application
    Filed: August 25, 2010
    Publication date: April 28, 2011
    Inventors: Mu-Kyung Jeon, Sang-Uk Kim, Hee-Chul Hwang, Hideo Yoshimura, Jin-Woo Park
  • Publication number: 20110080358
    Abstract: A liquid crystal display (LCD) with a built-in touch screen includes: a first substrate including a sensor area having a plurality of photosensors; a second substrate positioned over the first substrate, and including a color filter, a light receiving portion, and a transparent electrode layer and a front polarizing plate; an LCD panel including a liquid crystal layer interposed between the first and second substrates; a touch screen driver circuit to measure a capacitance variation sensed through a first sensing line connected to the transparent electrode layer and to calculate a touch area using optical information sensed through a second sensing line connected to the photosensors when a contact object is in contact with the LCD panel, and to output position information of the contact object, sensed by determining whether a touch occurs and whether a multi-touch occurs using the capacitance variation and the touch area.
    Type: Application
    Filed: July 12, 2010
    Publication date: April 7, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jin-Woo PARK, Sang-Uk Kim, Hee-Chul HWANG, Mu-Kyung JEON, Hideo YOSHIMURA
  • Publication number: 20110080357
    Abstract: A liquid crystal display (LCD) with a built-in touch screen includes: a first substrate including a pixel area having a plurality of pixels and a sensor area having a plurality of photosensors; a second substrate positioned over the first substrate, and including a color filter, a light receiving portion, a transparent electrode layer, and a front polarizing plate; an LCD panel including a liquid crystal layer interposed between the first and second substrates; and a touch screen driver circuit to sense a capacitance variation provided through a first sensing line connected to the transparent electrode layer when an object is in contact with the LCD panel, and to output position information of the object, sensed by using optical information sensed through a second sensing line connected the plurality of photosensors when the capacitance variation is greater than or equal to a predetermined threshold value.
    Type: Application
    Filed: July 12, 2010
    Publication date: April 7, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jin-Woo PARK, Sang-Uk Kim, Hee-Chul Hwang, My-Kyung Jeon, Hideo Yoshimura
  • Publication number: 20110057908
    Abstract: A liquid crystal display device having a built in touch screen including a first substrate having pixel units comprising: a plurality of pixels displaying an image and sensor regions having light sensors formed adjacent to the corresponding pixel units to sense a position of a contacted object; a second substrate disposed on the first substrate, comprising: color filters formed on regions corresponding to the pixel units and first black matrices formed on regions corresponding to the sensor regions of the pixel units; a liquid crystal layer interposed between the first substrate and the second substrate; and a backlight assembly disposed on a bottom portion of the first substrate and providing light to the first substrate and the second substrate. The liquid crystal display device with the built in touch screen determines a point of contact on the touch screen.
    Type: Application
    Filed: May 28, 2010
    Publication date: March 10, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jin-Woo PARK, Sang-Uk Kim, Hee-Chul Hwang, Mu-Kyung Jeon, Hideo Yoshimura
  • Publication number: 20090058785
    Abstract: A liquid crystal display including: a first common electrode line and a second common electrode line located near an edge of a panel and at least partly surrounding a plurality of pixels on the panel; a first common line positioned at an ith horizontal row of the pixels and coupled to the first common electrode line; and a second common line positioned at an i+1th horizontal row of the pixels and coupled to the second common electrode line; wherein each of the pixels includes a common electrode coupled to the first common line or the second common line.
    Type: Application
    Filed: June 12, 2008
    Publication date: March 5, 2009
    Inventors: Jung-Hwan Kim, Mu-Kyung Jeon, Hideo Yoshimura, Tae-Hyeog Jung
  • Publication number: 20090027758
    Abstract: A reversible coloring and deccoloring solid-state device includes a solid-state electrolyte film and a coloring and decoloring film which colors or decolors the coloring and decoloring film reversibly by applying an electric field. A barrier thin film is inserted between the solid-state electrolyte film and the coloring and decoloring film. The barrier thin film comprises at least one layer which is formed by a material having a band gap energy, functions as a barrier for the carrier movement, and has a thickness of 7 nm to 7±2 nm which does not prevent ion conduction. The coloring and decoloring speed is 0.1 seconds to 0.3 seconds by a voltage driving.
    Type: Application
    Filed: March 20, 2006
    Publication date: January 29, 2009
    Applicant: NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF AGRICULTURE AND TECHNOLOGY
    Inventors: Nobuyoshi Koshida, Hideo Yoshimura
  • Publication number: 20080297010
    Abstract: A brushless motor has a stator, a rotor rotatably disposed in an inner circumferential portion of the stator, and a resolver configured to detect a rotational position of the rotor with respect to the stator. The resolver has a resolver stator disposed at a fixed circumferential position with respect to the stator, and a resolver rotor disposed at a fixed circumferential position with respect to the rotor.
    Type: Application
    Filed: December 13, 2007
    Publication date: December 4, 2008
    Applicant: Showa Corporation
    Inventor: Hideo Yoshimura
  • Publication number: 20060055085
    Abstract: This invention is to offer the metal mold for injection molding and the metal mold for diecast molding with an excellent temperature controlling property that can be manufactured with lower manufacturing cost and shorter manufacturing time. The purpose of this invention is to offer the method to use the metal mold for injection molding capable of producing accurate products. The metal mold 1 for injection molding has the fixed metal mold part 2 configured by processing, layering and bonding a plurality of metal plates 10, the movable metal mold part 4 configured by processing, layering and bonding a plurality of metal plates 13, and the temperature controlling passages 3 and 5 formed by processing, layering and bonding a plurality of metal plates 10 and 13 in at least, one of the fixed metal mold part 2 and the movable metal mold part 4.
    Type: Application
    Filed: March 14, 2005
    Publication date: March 16, 2006
    Applicants: Tokyo University of Agriculture and Technology, Sekisou Forming Tool Laboratories
    Inventors: Takeo Nakagawa, Hisao Yamazaki, Hideo Yoshimura, Masanori Kunieda, Akira Sato, Masayuki Suzuki