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: 20240071297Abstract: A display device includes pixels connected to scan lines, control lines, data lines, and sensing lines; a scan driver configured to supply a scan signal to the scan lines and supply a control signal to the control lines; a data driver configured to supply one of an image data signal and a sensing data signal to the data lines; a sensing circuit configured to sense the characteristics based on a sensing current supplied through the sensing lines during the sensing period; and a power supply configured to supply a voltage of first power to the pixels.Type: ApplicationFiled: November 9, 2023Publication date: February 29, 2024Inventors: Young Soo HWANG, Hideo YOSHIMURA
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Patent number: 11917076Abstract: [Problem] To provide a terminal registration system and a terminal registration method for improving user convenience in registration of a new terminal to a plurality of service sites. [Solution] The registered terminal 1 includes an Authenticator 10 including service site list information 110 that associates private keys and URLs for access to service sites with each other. A Registration Manager 100 acquires the service site list information 110 from the Authenticator 10 of the registered terminal 1. Then, the Registration Manager 100 performs FIDO authentication for a registration target service site using a private key of the registered terminal 1, on the basis of the acquired service site list information 110, and performs Registration of a newly generated cryptographic key at the new terminal 2.Type: GrantFiled: May 25, 2022Date of Patent: February 27, 2024Assignee: Nippon Telegraph and Telephone CorporationInventors: Hideo Nishimura, Takao Yamashita, Yasuhiko Yoshimura, Satoru Furukawa
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Patent number: 11875733Abstract: A method of driving a display device, includes: supplying a first sensing data signal corresponding to a first grayscale, first power having a first sensing voltage, and a reference voltage to a pixel during a first sensing period; sensing a first sensing current, generated based on the first sensing voltage, from the pixel during the first sensing period; supplying a second sensing data signal corresponding to a second grayscale and different from the first sensing data signal, the first power having a second sensing voltage, and the reference voltage to the pixel during a second sensing period; sensing a second sensing current, generated based on the second sensing voltage different from the first sensing voltage, from the pixel during the second sensing period; and calculating characteristics of a driving transistor of the pixel using the first sensing current and the second sensing current.Type: GrantFiled: June 12, 2020Date of Patent: January 16, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Young Soo Hwang, Hideo Yoshimura
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Patent number: 11830416Abstract: A method of driving a display device, includes: supplying a first sensing data signal corresponding to a first grayscale, first power having a first sensing voltage, and a reference voltage to a pixel during a first sensing period; sensing a first sensing current, generated based on the first sensing voltage, from the pixel during the first sensing period; supplying a second sensing data signal corresponding to a second grayscale and different from the first sensing data signal, the first power having a second sensing voltage, and the reference voltage to the pixel during a second sensing period; sensing a second sensing current, generated based on the second sensing voltage different from the first sensing voltage, from the pixel during the second sensing period; and calculating characteristics of a driving transistor of the pixel using the first sensing current and the second sensing current.Type: GrantFiled: June 12, 2020Date of Patent: November 28, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Young Soo Hwang, Hideo Yoshimura
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Publication number: 20220319399Abstract: A method of driving a display device, includes: supplying a first sensing data signal corresponding to a first grayscale, first power having a first sensing voltage, and a reference voltage to a pixel during a first sensing period; sensing a first sensing current, generated based on the first sensing voltage, from the pixel during the first sensing period; supplying a second sensing data signal corresponding to a second grayscale and different from the first sensing data signal, the first power having a second sensing voltage, and the reference voltage to the pixel during a second sensing period; sensing a second sensing current, generated based on the second sensing voltage different from the first sensing voltage, from the pixel during the second sensing period; and calculating characteristics of a driving transistor of the pixel using the first sensing current and the second sensing current.Type: ApplicationFiled: June 12, 2020Publication date: October 6, 2022Inventors: Young Soo HWANG, Hideo YOSHIMURA
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Patent number: 10496229Abstract: A touch sensor includes a plurality of driving electrodes, a plurality of sensing electrodes that intersect the plurality of driving electrodes, a driver configured to substantially simultaneously supply driving signals to at least some of the plurality of driving electrodes, a sensing unit configured to detect sensing signals from the plurality of sensing electrodes, and a touch controller configured to control the driver so that the number of driving electrodes to which the driving signals are supplied in a first driving period is different from the number of driving electrodes to which the driving signals are supplied in a second driving period.Type: GrantFiled: August 24, 2017Date of Patent: December 3, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: A Ram Song, Hideo Yoshimura, Hoe Seok Na, Yong Jin Jee
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Publication number: 20180059824Abstract: A touch sensor includes a plurality of driving electrodes, a plurality of sensing electrodes that intersect the plurality of driving electrodes, a driver configured to substantially simultaneously supply driving signals to at least some of the plurality of driving electrodes, a sensing unit configured to detect sensing signals from the plurality of sensing electrodes, and a touch controller configured to control the driver so that the number of driving electrodes to which the driving signals are supplied in a first driving period is different from the number of driving electrodes to which the driving signals are supplied in a second driving period.Type: ApplicationFiled: August 24, 2017Publication date: March 1, 2018Inventors: A RAM SONG, HIDEO YOSHIMURA, HOE SEOK NA, YONG JIN JEE
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Patent number: 9710083Abstract: A liquid crystal display integrated with a touch sensor includes a first substrate including pixels connected to gate wires and data wires, a second substrate positioned to face the first substrate, a plurality of common electrodes corresponding to the pixels, a plurality of sensing electrodes on the second substrate, a liquid crystal layer between the first substrate and the second substrate, a gate drive unit driven corresponding to a gate control signal and configured to supply a gate signal to the pixels through the gate wires, a common electrode drive unit configured to supply a touch driving signal to the common electrodes during a touch driving period, and a control unit configured to supply a gate control signal synchronized with the touch driving signal to the gate drive unit.Type: GrantFiled: September 11, 2013Date of Patent: July 18, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin-Woo Park, Sang-Jin Pak, Sang-Kwon Ha, Ji-Gong Lee, Hideo Yoshimura
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Patent number: 9393988Abstract: A steering arm includes an output shaft hole into which an output shaft is fitted; two tie rod holes to which tie rods are respectively attached; and two striking surfaces that strike against a stopper. The stopper includes two contract surfaces. An angle formed by the two contact surfaces of the stopper is greater than an angle formed by the two striking surfaces of the steering arm, and is greater than or equal to 90°.Type: GrantFiled: December 24, 2014Date of Patent: July 19, 2016Assignee: SHOWA CORPORATIONInventors: Takuya Murakami, Masanori Matsumoto, Hideo Yoshimura, Satoru Higashi, Shinji Kuno, Taro Inoue
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Patent number: 9189113Abstract: 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: GrantFiled: May 23, 2013Date of Patent: November 17, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Hideo Yoshimura
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Patent number: 9183615Abstract: 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: GrantFiled: March 14, 2013Date of Patent: November 10, 2015Assignee: Samsung Display Co., Ltd.Inventors: Ji Gong Lee, Sang Jin Pak, Hideo Yoshimura, Sang Kwon Ha
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Publication number: 20150274205Abstract: A steering arm includes an output shaft hole into which an output shaft is fitted; two tie rod holes to which tie rods are respectively attached; and two striking surfaces that strike against a stopper. The stopper includes two contract surfaces. An angle formed by the two contact surfaces of the stopper is greater than an angle formed by the two striking surfaces of the steering arm, and is greater than or equal to 90°.Type: ApplicationFiled: December 24, 2014Publication date: October 1, 2015Applicant: SHOWA CORPORATIONInventors: Takuya MURAKAMI, Masanori MATSUMOTO, Hideo YOSHIMURA, Satoru HIGASHI, Shinji KUNO, Taro INOUE
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Publication number: 20150116303Abstract: A display device includes: pixels at areas defined by gate lines and data lines; a gate driver configured to selectively drive the gate lines; a data driver configured to generate data signals set to various voltages, using data to be supplied to the gate lines, and to supply the data signals to the data lines; a timing controller configured to control the gate driver and the data driver; and an order setting unit configured to set a driving order of the gate lines by comparing information values of the gate lines.Type: ApplicationFiled: October 27, 2014Publication date: April 30, 2015Inventors: Ji-Gong Lee, Jin-Woo Park, Hideo Yoshimura
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Patent number: 8933894Abstract: 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: GrantFiled: May 28, 2010Date of Patent: January 13, 2015Assignee: 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: 8891048Abstract: 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: GrantFiled: September 21, 2011Date of Patent: November 18, 2014Assignee: Samsung Display Co., Ltd.Inventors: 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: 8847917Abstract: 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: GrantFiled: July 12, 2010Date of Patent: September 30, 2014Assignee: 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: 8830183Abstract: 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: September 9, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jin-Woo Park, Sang-Uk Kim, Hee-Chul Hwang, My-Kyung Jeon, Hideo Yoshimura
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Patent number: 8773603Abstract: 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 faces the first substrate and has 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: GrantFiled: September 22, 2011Date of Patent: July 8, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jin-Woo Park, Hideo Yoshimura, Joo-Hyung Lee, Sang-Jin Pak, Cheol-Min Kim
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Publication number: 20140184533Abstract: A liquid crystal display integrated with a touch sensor includes a first substrate including pixels connected to gate wires and data wires, a second substrate positioned to face the first substrate, a plurality of common electrodes corresponding to the pixels, a plurality of sensing electrodes on the second substrate, a liquid crystal layer between the first substrate and the second substrate, a gate drive unit driven corresponding to a gate control signal and configured to supply a gate signal to the pixels through the gate wires, a common electrode drive unit configured to supply a touch driving signal to the common electrodes during a touch driving period, and a control unit configured to supply a gate control signal synchronized with the touch driving signal to the gate drive unit.Type: ApplicationFiled: September 11, 2013Publication date: July 3, 2014Applicant: Samsung Display Co., Ltd.Inventors: Jin-Woo PARK, Sang-Jin PAK, Sang-Kwon HA, Ji-Gong LEE, Hideo YOSHIMURA
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Patent number: 8749505Abstract: 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: GrantFiled: October 28, 2011Date of Patent: June 10, 2014Assignee: Samsung Display Co., Ltd.Inventors: Sang-Kwon Ha, Joo-Hyung Lee, Jin-Woo Park, Sang-Jin Pak, Ji-Gong Lee, Hideo Yoshimura