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).
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Publication number: 20140152716Abstract: 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: ApplicationFiled: June 13, 2013Publication date: June 5, 2014Inventors: Ji-Gong Lee, Hideo Yoshimura, Sang-Jin Pak, Sang-Kwon Ha
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Patent number: 8704784Abstract: 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: GrantFiled: July 12, 2010Date of Patent: April 22, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jin-Woo Park, Sang-Uk Kim, Hee-Chul Hwang, My-Kyung Jeon, Hideo Yoshimura
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Publication number: 20140085322Abstract: 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: ApplicationFiled: March 14, 2013Publication date: March 27, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Ji Gong Lee, Sang Jin Pak, Hideo Yoshimura, Sang Kwon Ha
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Publication number: 20130321332Abstract: 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: ApplicationFiled: May 23, 2013Publication date: December 5, 2013Inventor: Hideo YOSHIMURA
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Patent number: 8599172Abstract: 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: GrantFiled: September 30, 2010Date of Patent: December 3, 2013Assignee: Samsung Display Co., Ltd.Inventors: Jin-Woo Park, Sang-Uk Kim, Hee-Chul Hwang, Mu-Kyung Jeon, Hideo Yoshimura
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Patent number: 8581883Abstract: 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: GrantFiled: August 25, 2010Date of Patent: November 12, 2013Assignee: Samsung Display Co., Ltd.Inventors: Mu-Kyung Jeon, Sang-Uk Kim, Hee-Chul Hwang, Hideo Yoshimura, Jin-Woo Park
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Publication number: 20120206383Abstract: 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: ApplicationFiled: October 28, 2011Publication date: August 16, 2012Inventors: Sang-Kwon HA, Joo-Hyung Lee, Jin-Woo Park, Sang-Jin Pak, Ji-Gong Lee, Hideo Yoshimura
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Publication number: 20120113339Abstract: 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: ApplicationFiled: September 22, 2011Publication date: May 10, 2012Inventors: Jin-Woo Park, Hideo Yoshimura, Joo-Hyung Lee, Sang-Jin Pak, Cheol-Min Kim
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Publication number: 20120105752Abstract: 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: ApplicationFiled: September 21, 2011Publication date: May 3, 2012Inventors: Jin-Woo Park, Sang-Jin Pak, Jin-Hee Lee, Sang-Kwon Ha, Ji-Gong Lee, Hideo Yoshimura, Cheol-Min Kim, Joo-Hyung Lee
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Patent number: 8169111Abstract: 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: GrantFiled: December 13, 2007Date of Patent: May 1, 2012Assignee: Showa CorporationInventor: Hideo Yoshimura
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Publication number: 20120044171Abstract: 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: ApplicationFiled: June 24, 2011Publication date: February 23, 2012Inventors: Jin-Hee Lee, Sang-Jin Pak, Hideo Yoshimura, Bum-Joon Kim, Sang-Kwon Ha, Jin-Woo Park, Joo-Hyung Lee
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Publication number: 20110102365Abstract: 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: ApplicationFiled: September 30, 2010Publication date: May 5, 2011Applicant: Samsung Mobile Display Co., LtdInventors: Jin-Woo PARK, Sang-Uk Kim, Hee-Chul Hwang, Mu-Kyung Jeon, Hideo Yoshimura
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Publication number: 20110096027Abstract: 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: ApplicationFiled: August 25, 2010Publication date: April 28, 2011Inventors: Mu-Kyung Jeon, Sang-Uk Kim, Hee-Chul Hwang, Hideo Yoshimura, Jin-Woo Park
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Publication number: 20110080358Abstract: 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: ApplicationFiled: July 12, 2010Publication date: April 7, 2011Applicant: Samsung Mobile Display Co., Ltd.Inventors: Jin-Woo PARK, Sang-Uk Kim, Hee-Chul HWANG, Mu-Kyung JEON, Hideo YOSHIMURA
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Publication number: 20110080357Abstract: 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: ApplicationFiled: July 12, 2010Publication date: April 7, 2011Applicant: Samsung Mobile Display Co., Ltd.Inventors: Jin-Woo PARK, Sang-Uk Kim, Hee-Chul Hwang, My-Kyung Jeon, Hideo Yoshimura
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Publication number: 20110057908Abstract: 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: ApplicationFiled: May 28, 2010Publication date: March 10, 2011Applicant: Samsung Mobile Display Co., Ltd.Inventors: Jin-Woo PARK, Sang-Uk Kim, Hee-Chul Hwang, Mu-Kyung Jeon, Hideo Yoshimura
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Publication number: 20090058785Abstract: 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: ApplicationFiled: June 12, 2008Publication date: March 5, 2009Inventors: Jung-Hwan Kim, Mu-Kyung Jeon, Hideo Yoshimura, Tae-Hyeog Jung
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Publication number: 20090027758Abstract: 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: ApplicationFiled: March 20, 2006Publication date: January 29, 2009Applicant: NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF AGRICULTURE AND TECHNOLOGYInventors: Nobuyoshi Koshida, Hideo Yoshimura
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Publication number: 20080297010Abstract: 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: ApplicationFiled: December 13, 2007Publication date: December 4, 2008Applicant: Showa CorporationInventor: Hideo Yoshimura
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Publication number: 20060055085Abstract: 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: ApplicationFiled: March 14, 2005Publication date: March 16, 2006Applicants: Tokyo University of Agriculture and Technology, Sekisou Forming Tool LaboratoriesInventors: Takeo Nakagawa, Hisao Yamazaki, Hideo Yoshimura, Masanori Kunieda, Akira Sato, Masayuki Suzuki