Patents by Inventor Katsuyoshi Hiraki

Katsuyoshi Hiraki 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: 20220221415
    Abstract: The present disclosure relates to a sensor assembly and a control method therefor. The sensor assembly according to the present disclosure may include a plurality of gate lines, at least one detection line, and a plurality of sensors respectively disposed at portions where the plurality of gate lines intersect with the at least one detection line. In this case, the plurality of sensors include an olfactory sensor, a temperature sensor, and a humidity sensor.
    Type: Application
    Filed: January 20, 2020
    Publication date: July 14, 2022
    Inventors: Masaki TAKADA, Katsuyoshi HIRAKI, Osamu SATO, Sungmin KANG
  • Patent number: 11249712
    Abstract: A display system includes: first to Nth (N is an integer greater than or equal to 2) display panels; a drive part configured to output first to Nth video signals of a video to be respectively displayed on the first to Nth display panels and first to Nth control signals for respectively controlling the first to Nth display panels; and a transmission part configured to transmit the first to Nth video signals and the first to Nth control signals to the first to Nth display panels, wherein the transmission part includes first to Nth relay parts, and the mth (m is an integer satisfying 1?m?N?1) relay part outputs the mth video signal to the mth display panel and outputs the (m+1)th to Nth video signals to the (m+1)th relay part.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: February 15, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Hyun-Jong Ji, Takayuki Suzuki, Katsuyoshi Hiraki
  • Publication number: 20210182010
    Abstract: A display system includes: first to Nth (N is an integer greater than or equal to 2) display panels; a drive part configured to output first to Nth video signals of a video to be respectively displayed on the first to Nth display panels and first to Nth control signals for respectively controlling the first to Nth display panels; and a transmission part configured to transmit the first to Nth video signals and the first to Nth control signals to the first to Nth display panels, wherein the transmission part includes first to Nth relay parts, and the mth (m is an integer satisfying 1?m?N?1) relay part outputs the mth video signal to the mth display panel and outputs the (m+1)th to Nth video signals to the (m+1)th relay part.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 17, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hyun-Jong JI, Takayuki SUZUKI, Katsuyoshi HIRAKI
  • Patent number: 10971049
    Abstract: A display device includes: a connector unit including a plurality of receiving electrodes configured to receive an input signal from a plurality of transmission electrodes of an interface unit having a flat plate shape; a signal processor which determines an arrangement of an input data included in the input signal; and a display output portion which performs an image output processing according to the arrangement of the input data determined by the signal processor, wherein the plurality of receiving electrodes are disposed to face the plurality of transmission electrodes in each of a plurality of connection directions defined by in-plane rotation angles of the interface unit, in a predetermined region which the interface unit opposes, and wherein the signal processor determines the arrangement of the input data according to the connection direction of the interface unit.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: April 6, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Katsuyoshi Hiraki, Takayuki Suzuki
  • Patent number: 10948667
    Abstract: A photoelectric conversion module includes a circuit board; a photoelectric conversion element mounted on a first main surface of the circuit board; and an optical lens provided in an optical path between an end surface of an optical fiber and the photoelectric conversion element, wherein a part of the optical lens is inserted in a recessed portion formed in the first main surface of the circuit board.
    Type: Grant
    Filed: December 21, 2019
    Date of Patent: March 16, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Katsuyoshi Hiraki, Takayuki Suzuki
  • Publication number: 20200202762
    Abstract: A display device includes: a connector unit including a plurality of receiving electrodes configured to receive an input signal from a plurality of transmission electrodes of an interface unit having a flat plate shape; a signal processor which determines an arrangement of an input data included in the input signal; and a display output portion which performs an image output processing according to the arrangement of the input data determined by the signal processor, wherein the plurality of receiving electrodes are disposed to face the plurality of transmission electrodes in each of a plurality of connection directions defined by in-plane rotation angles of the interface unit, in a predetermined region which the interface unit opposes, and wherein the signal processor determines the arrangement of the input data according to the connection direction of the interface unit.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 25, 2020
    Inventors: Katsuyoshi HIRAKI, Takayuki SUZUKI
  • Publication number: 20200200984
    Abstract: A photoelectric conversion module includes a circuit board; a photoelectric conversion element mounted on a first main surface of the circuit board; and an optical lens provided in an optical path between an end surface of an optical fiber and the photoelectric conversion element, wherein a part of the optical lens is inserted in a recessed portion formed in the first main surface of the circuit board.
    Type: Application
    Filed: December 21, 2019
    Publication date: June 25, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Katsuyoshi HIRAKI, Takayuki SUZUKI
  • Patent number: 10319865
    Abstract: A pressure detecting includes a plurality of sensing cells arranged a plurality of rows and columns, each of the plurality of sensing cells including a pressure sensing element and a selection transistor. First driving signal lines are disposed in the rows, and the first driving signal lines are connected to the selection transistors of a first portion of the plurality of sensing cells in a respective row. Second driving signal lines are disposed in a portion of the plurality of rows, and the second driving signal lines are connected to the selection transistors of a second portion of the plurality of sensing cells in a respective row. First and second driving circuits are respectively connected to the first driving signal lines the second driving signal lines.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: June 11, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Katsuyoshi Hiraki, Osamu Sato, Kazuki Watanabe
  • Publication number: 20180061999
    Abstract: A pressure detecting includes a plurality of sensing cells arranged a plurality of rows and columns, each of the plurality of sensing cells including a pressure sensing element and a selection transistor. First driving signal lines are disposed in the rows, and the first driving signal lines are connected to the selection transistors of a first portion of the plurality of sensing cells in a respective row. Second driving signal lines are disposed in a portion of the plurality of rows, and the second driving signal lines are connected to the selection transistors of a second portion of the plurality of sensing cells in a respective row. First and second driving circuits are respectively connected to the first driving signal lines the second driving signal lines.
    Type: Application
    Filed: August 22, 2017
    Publication date: March 1, 2018
    Inventors: Katsuyoshi HIRAKI, Osamu SATO, Kazuki WATANABE
  • Patent number: 8803774
    Abstract: A liquid crystal display is provided, including a conversion circuit to convert a first image data to a second image data, a frame memory to store the second image data, a difference circuit to output in units of pixel a difference data between the second image data of the present frame to be converted and a third image data of an antecedent frame to be outputted from the frame memory, a correction circuit to correct the difference data based on one of the first to third image data, and an adding circuit to add the corrected difference data and the first image data.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: August 12, 2014
    Assignee: AU Optronics Corporation
    Inventors: Katsuyoshi Hiraki, Toshiaki Suzuki
  • Patent number: 8648994
    Abstract: Disclosed are a liquid crystal display element exhibiting a continuous gradation memory property as well as different display properties substantially similar to those of a liquid crystal display element having nematic liquid crystals, while enabling continuous tone display, and a method for manufacturing the same.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: February 11, 2014
    Assignees: LG Display Co., Ltd., Tokyo Institute of Technology
    Inventors: Osamu Sato, Katsuyoshi Hiraki, Isao Adachi, Dong-Uk Cho, Kento Okoshi, Masatoshi Tokita, Junji Watanabe
  • Patent number: 8502762
    Abstract: This invention relates to an image processing method for improving the quality of an image to be displayed on a display device and to a liquid-crystal display device using the same, and aims at providing an image processing method for providing wide viewing angle and excellent tonal-intensity viewing angle characteristic and a liquid-crystal display device using the same. Combined together are a higher-luminance pixel to be driven higher in luminance than the luminance data of an image to be displayed and a lower-luminance pixel to be driven lower in luminance than the luminance data, to determine a luminance on the higher-luminance pixel and luminance on the lower-luminance pixel as well as an area ratio of the higher-luminance and lower-luminance pixels in a manner obtaining a luminance nearly equal to a desired luminance based on the luminance data.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: August 6, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tsuyoshi Kamada, Hidefumi Yoshida, Yoshio Koike, Toshiaki Suzuki, Tetsuya Kobayashi, Yasutoshi Tasaka, Masakazu Shibasaki, Kunihiro Tashiro, Kazuya Ueda, Katsuyoshi Hiraki
  • Patent number: 8432347
    Abstract: A drive control circuit includes a timing controller for detecting a change of a horizontal scanning frequency, a gate voltage generating circuit for generating two kinds of gate-on voltages Va and Vb (Va<Vb), and a switch for outputting one of the gate-on voltages Va and Vb from the gate voltage generating circuit in accordance with an output of the timing controller. The timing controller includes a counter for counting the number of clocks for one horizontal period, and a comparator for comparing a count result with a threshold value. When the horizontal scanning frequency is in a normal state, the low gate-on voltage Va is outputted, and when the horizontal scanning frequency exceeds a predetermined threshold value, that is, the count value falls below a threshold value, the high gate-on voltage Vb is outputted.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: April 30, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsuyoshi Hiraki, Yasutake Furukoshi, Koichi Katagawa, Masanori Nishido, Tetsuya Kobayashi
  • Patent number: 8094143
    Abstract: This invention relates to an image processing method for improving the quality of an image to be displayed on a display device and to a liquid-crystal display device using the same, and aims at providing an image processing method for providing wide viewing angle and excellent tonal-intensity viewing angle characteristic and a liquid-crystal display device using the same. Combined together are a higher-luminance pixel to be driven higher in luminance than the luminance data of an image to be displayed and a lower-luminance pixel to be driven lower in luminance than the luminance data, to determine a luminance on the higher-luminance pixel and luminance on the lower-luminance pixel as well as an area ratio of the higher-luminance and lower-luminance pixels in a manner obtaining a luminance nearly equal to a desired luminance based on the luminance data.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: January 10, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tsuyoshi Kamada, Hidefumi Yoshida, Yoshio Koike, Toshiaki Suzuki, Tetsuya Kobayashi, Yasutoshi Tasaka, Masakazu Shibasaki, Kunihiro Tashiro, Kazuya Ueda, Katsuyoshi Hiraki
  • Patent number: 8044915
    Abstract: A liquid crystal display apparatus includes a plurality of pixels arranged in matrix form including respective transistors, a plurality of gate bus lines, each of which is coupled to gates of the transistors arranged in a corresponding single row, a plurality of data bus lines, each of which is coupled to one end of channels of the transistors arranged in a corresponding single column, a gate driver configured to successively drive the plurality of gate bus lines, and a timing control circuit configured to supply to the gate driver a timing signal indicative of a start of the successive driving of the plurality of gate bus lines and to mask the timing signal for a predetermined time period following the supplying of the timing signal.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: October 25, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kenko Honda, Katsuyoshi Hiraki, Yasutake Furukoshi
  • Publication number: 20110181821
    Abstract: Disclosed are a liquid crystal display element exhibiting a continuous gradation memory property as well as different display properties substantially similar to those of a liquid crystal display element having nematic liquid crystals, while enabling continuous tone display, and a method for manufacturing the same.
    Type: Application
    Filed: December 30, 2010
    Publication date: July 28, 2011
    Applicants: LG Display Co., Ltd., Tokyo Institute of Technology
    Inventors: Osamu SATO, Katsuyoshi Hiraki, Isao Adachi, Dong-Uk Cho, Kento Okoshi, Masatoshi Tokita, Junji Watanabe
  • Publication number: 20100103206
    Abstract: This invention relates to an image processing method for improving the quality of an image to be displayed on a display device and to a liquid-crystal display device using the same, and aims at providing an image processing method for providing wide viewing angle and excellent tonal-intensity viewing angle characteristic and a liquid-crystal display device using the same. Combined together are a higher-luminance pixel to be driven higher in luminance than the luminance data of an image to be displayed and a lower-luminance pixel to be driven lower in luminance than the luminance data, to determine a luminance on the higher-luminance pixel and luminance on the lower-luminance pixel as well as an area ratio of the higher-luminance and lower-luminance pixels in a manner obtaining a luminance nearly equal to a desired luminance based on the luminance data.
    Type: Application
    Filed: November 17, 2009
    Publication date: April 29, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tsuyoshi Kamada, Hidefumi Yoshida, Yoshio Koike, Toshiaki Suzuki, Tetsuya Kobayashi, Yasutoshi Tasaka, Masakazu Shibasaki, Kunihiro Tashiro, Kazuya Ueda, Katsuyoshi Hiraki
  • Publication number: 20100090938
    Abstract: This invention relates to an image processing method for improving the quality of an image to be displayed on a display device and to a liquid-crystal display device using the same, and aims at providing an image processing method for providing wide viewing angle and excellent tonal-intensity viewing angle characteristic and a liquid-crystal display device using the same. Combined together are a higher-luminance pixel to be driven higher in luminance than the luminance data of an image to be displayed and a lower-luminance pixel to be driven lower in luminance than the luminance data, to determine a luminance on the higher-luminance pixel and luminance on the lower-luminance pixel as well as an area ratio of the higher-luminance and lower-luminance pixels in a manner obtaining a luminance nearly equal to a desired luminance based on the luminance data.
    Type: Application
    Filed: October 9, 2009
    Publication date: April 15, 2010
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tsuyoshi Kamada, Hidefumi Yoshida, Yoshio Koike, Toshiaki Suzuki, Tetsuya Kobayashi, Yasutoshi Tasaka, Masakazu Shibasaki, Kunihiro Tashiro, Kazuya Ueda, Katsuyoshi Hiraki
  • Patent number: 7639223
    Abstract: A liquid crystal display apparatus includes a liquid crystal panel, a driver configured to drive the liquid crystal panel, a control circuit configured to control the driver in response to a display data signal and control signal supplied from an exterior, and a check circuit configured to detect a change between frames in a detection-purpose signal that is included in at least one of the display data signal and control signal so as to output a check signal responsive to presence/absence of the change.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: December 29, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasutake Furukoshi, Katsuyoshi Hiraki
  • Patent number: 7595780
    Abstract: The liquid crystal display device has a liquid crystal panel in which liquid crystal cells are disposed in intersection areas of scanning lines and data lines, respectively. A picture signal and a synchronous signal are supplied via external terminals, respectively. A timing controller generates a driving timing of the scanning lines and a driving timing of the data lines in response to the synchronous signal. Further, the timing controller varies at least one of the driving timing of the scanning lines and the driving timing of the data lines according to a cycle of the synchronous signal in order to keep a writing time of the picture signal supplied to the liquid crystal cells constant. Therefore, it is possible to keep the writing time constant even when the cycle of the synchronous signal varies, which can prevent the deterioration in display quality.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: September 29, 2009
    Assignees: Fujitsu Limited, Au Optronics Corporation
    Inventors: Koichi Katagawa, Yasutake Furukoshi, Katsuyoshi Hiraki