Patents Assigned to Silicon Works Co., Ltd.
  • Source driver
    Patent number: 10540924
    Abstract: The present invention discloses a source driver that drives a source driver. The source driver is configured in such a manner that a source driving module for driving display data and a conversion module for converting a sensing signal of a display panel into sensing data share components thereof. Thus, the area of the source driver can be reduced.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: January 21, 2020
    Assignee: Silicon Works Co., Ltd
    Inventors: Jae Kwan Lee, Jong Keun Hwang
  • DISPLAY DRIVING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20190385504
    Abstract: Embodiments of the present disclosure relate to a display driving device and a display device including the same. The display driving device includes a source driving circuit configured to convert image data of respective channels into source signals; a polarity control circuit configured to receive polarity data for the respective channels, and generate a polarity control signal for controlling polarities of the source signals depending on a logic combination of the polarity data; and a multiplexer circuit configured to output the source signals to data lines in response to the polarity control signal.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 19, 2019
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Hyun Woo JEONG, Kwang Myoung KANG, Yong Min KIM, Ha Na CHOI, Da Sol WON, Se Hyuk AN
  • Panel-driving device and display device
    Patent number: 10510311
    Abstract: The present disclosure provides a technique for supplying different voltages to a plurality of adjacent electrodes, sensing a voltage formed on each electrode, and diagnosing a short-circuit failure of each electrode.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: December 17, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Yong Sung Ahn, Jeong Lee, Jun Tak Jeon
  • Data driving apparatus, data processing apparatus and driving system for display panel
    Patent number: 10490158
    Abstract: The present disclosure provides a technology indicating information different from each other by patterns of link data in a process of training links performed prior to transmitting image data.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: November 26, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Myung Yu Kim, Hyun Pyo Cho, Byung-Guk Kim, Hyun Kyu Jeon
  • DISPLAY DEVICE AND DRIVER THEREOF
    Publication number: 20190339808
    Abstract: The present disclosure discloses a display device that performs a read operation corresponding to a touch based on a multipoint interface (MPI) protocol. In the display device, a microcontroller and a plurality of drivers share MPI buses and perform the read operation for a touch, and turning on of reception buffers may be efficiently controlled by providing a wake-up signal by a selected driver designated by a read command of the microcontroller to unselected drivers at the time of completion of transmission of touch data.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 7, 2019
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Jong Min PARK, Hun Yong LIM, Hyun Woo JEONG, Young Uk CHANG, Chung Min LEE, Ha Na CHOI
  • Source driver for display apparatus
    Patent number: 10467942
    Abstract: The present invention relates to a source driver for a display apparatus, which is capable of removing delay of a DAC (Digital-Analog Converter) and in which a part of gamma lines for providing gamma voltages to the DAC is designed to have a large width and a small resistance value. Before driving a first gamma voltage to a level corresponding to display data, the DAC can select an adjacent gamma line having a small resistance value and drive a second gamma voltage, thereby removing a delay time.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: November 5, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventor: Jae Kwan Lee
  • Display driving device
    Patent number: 10467948
    Abstract: Disclosed is a display driving device capable of reducing an output response delay of an output buffer. The display driving device may include: a first DAC configured to load a first grayscale voltage corresponding to first digital data as a first DAC signal; a second DAC configured to load a second grayscale voltage corresponding to second digital data as a second DAC signal; and an output buffer configured to alternately select the first DAC signal loaded to a first input terminal and the second DAC signal loaded to a second input terminal.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: November 5, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Young Bok Kim, Taiming Piao, Hyun Kyu Jeon, Joon Ho Na
  • Image data processing apparatus that overdrives pixels of a display device to increase reaction speed of the pixels
    Patent number: 10460672
    Abstract: The present invention generates overdriving image data by compressing and storing image data and comparing stored previous-period image data and current-period image data. The present invention controls a data voltage upward or downward through overdriving image data, thereby improving the reaction speed of a pixel.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: October 29, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: You Shin Lee, Young Jun Jun, Young Sun Na, Jae Hwan Lim, Seong Hyeon Jo
  • Panel-driving device and touch-driving device
    Patent number: 10452202
    Abstract: Provided is a technology for generating a sensor-driving waveform using a waveform generator, generating a sensor-driving signal and a sensor-driving auxiliary signal according to the sensor-driving waveform, and providing the same to a sensor electrode and adjacent electrodes.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: October 22, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Yong Sung Ahn, Jeong Lee, Jun Tak Jeon
  • SENSING CIRCUIT OF SOURCE DRIVER AND DISPLAY DEVICE USING THE SAME
    Publication number: 20190318694
    Abstract: Disclosed are a source driver and a display device using the same, and the display device includes the source driver that generates sensing data by performing a pre-processing operation on pixel data obtained by sensing display pixels, and a timing controller that generates correction data for correction for pixel characteristics by performing a post-processing operation on the sensing data.
    Type: Application
    Filed: December 12, 2017
    Publication date: October 17, 2019
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Yong Jung KWON, Min Young JEONG, Sang Min LEE, Jeung Hie CHOI
  • Heat dissipation circuit and regulator control circuit including the same
    Patent number: 10437276
    Abstract: A regulator control circuit includes a regulator configured to provide an output voltage by regulation using one of an input voltage and a dropped input voltage, to a load; and a heat dissipation circuit configured to sense a change in the input voltage, and provide the dropped input voltage to the regulator when the input voltage is sensed to be equal to or higher than a preset level.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: October 8, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Ju Hyun Lee, Kyu Ho Kim, Chun Sik Jung, Sung Gon Kim
  • Gate driver and control method thereof
    Patent number: 10431175
    Abstract: Provided are a gate driver and a control method thereof. The gate driver receives a power down control signal corresponding to a power down mode, controls an operation of a gate signal processor using the power down control signal which is activated in response to the power down mode, and provides a gate high voltage or gate low voltage for a display panel in response to the power down control signal.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: October 1, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventor: Jeung Hie Choi
  • DISPLAY DRIVING DEVICE HAVING TEST FUNCTION AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20190287443
    Abstract: A display device having a test function includes a display panel; and a display driving device configured to store pattern data corresponding to test patterns for testing an image quality of the display panel and control data for controlling the pattern data. The display driving device sets a display order and a display time of each of the test patterns by using the control data, and performs driving such that at least two test patterns are displayed on the display panel depending on the control data.
    Type: Application
    Filed: March 13, 2019
    Publication date: September 19, 2019
    Applicant: SILICON WORKS CO., LTD.
    Inventor: Young Gi KIM
  • LED LIGHTING APPARATUS
    Publication number: 20190274198
    Abstract: Disclosed is an LED lighting apparatus. The LED lighting apparatus may include a leakage current control unit configured to provide a leakage current path when a rectified voltage is retained at a predetermined voltage or less for a preset time or more, and a leakage current and retention current may be discharged through a leakage current path.
    Type: Application
    Filed: July 25, 2017
    Publication date: September 5, 2019
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Gyeong Sik MUN, Sang Young LEE, Ki Soo KWON, Ki Chul AN, Yong Geun KIM
  • Source driver including sensing circuit and display device using the same
    Patent number: 10403196
    Abstract: Disclosed is a source driver including a sensing circuit capable of sensing whether a short occurred between a data output line and a power line. The source driver may include: an output circuit configured to output a preset voltage to a display panel in a checking mode; and a sensing circuit configured to sense whether data output lines connecting the output circuit and the display panel are shorted, using the preset voltage, and output a sensing result signal.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: September 3, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Ju Young Shin, Jung Bae Yun, Yong Jung Kwon, Jeung Hie Choi
  • Level shifter and display device including the same
    Patent number: 10389357
    Abstract: A level shifter may include: a phase controller configured to determine the number of phases of a gate pulse, using an on input signal and an off input signal, and generate a control signal according to the determined number; a switching controller configured to generate one or more switching signals in response to the control signal; and an output buffer configured to generate the level-shifted gate pulse in response to the one or more switching signals.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: August 20, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Yoon Soo Shin, Ji Woong Han, Hun Choi
  • DISPLAY DEVICE AND PANEL COMPENSATION METHOD THEREOF
    Publication number: 20190251900
    Abstract: Disclosed are a display device and a panel compensation method of the display device. The panel compensation method of the display device includes a step of allowing at least one line pixel of a display panel to be a current source that generates a pixel current with the same value, and a step of correcting a deviation between all current sensing paths of a source driver by using the pixel current with the same value and correcting a characteristic deviation between all pixels after correcting the deviation between the current sensing paths.
    Type: Application
    Filed: November 1, 2017
    Publication date: August 15, 2019
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Kyung Jik MIN, Won Kab OH, Su Hun YANG, Jeong Hie CHOI
  • Current mirroring circuit, panel driving apparatus and OLED driver
    Patent number: 10380945
    Abstract: The present invention provides a technology of simultaneously sensing characteristics of a plurality of OLED pixels. Further, a current mirroring circuit for sensing characteristics of OLED pixels can be applied to fields other than sensing characteristics of OLED pixels, and the current mirroring technology can output sensing currents having a uniform magnitude within a predetermined error range to a plurality of output terminals.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: August 13, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Dong Hyun Hwang, Se Won Lee
  • Display device
    Patent number: 10380971
    Abstract: Disclosed is a display device. The display device may use one transmission line to perform bidirectional data transmission between a timing controller and a source driver. Furthermore, the display device may control the timing controller to transmit a Tx signal to the source driver and control the source driver to transmit correction data, through one transmission line.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: August 13, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Kwang Il Oh, Jung Hwan Choi, Yun Tack Han, Hyun Kyu Jeon
  • SOURCE SIGNAL DRIVING APPARATUS FOR DISPLAY DEVICE
    Publication number: 20190197945
    Abstract: Disclosed is a source signal driving apparatus capable of implementing channels at high integration density. The source signal driving apparatus is configured to sequentially output source signals by sequentially delaying enable time points of enable signals provided to channel circuits.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 27, 2019
    Applicant: SILICON WORKS CO., LTD.
    Inventor: Young Gi KIM