Patents Assigned to Silicon Works Co., Ltd.
  • DATA DRIVING APPARATUS FOR DISPLAY AND DRIVER THEREOF
    Publication number: 20190197942
    Abstract: Disclosed is a data driving apparatus for a display device, which controls drivers to share operation data stored in a memory. The data driving apparatus can improve a routing environment of an EEPROM on an FPCB, thereby simplifying a process of transferring operation data to the drivers and reducing the time required for a reset mode.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 27, 2019
    Applicant: SILICON WORKS CO., LTD
    Inventor: Young Gi KIM
  • DATA DRIVING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20190189047
    Abstract: Disclosed are a data driving device capable of variably enabling or disabling multiple channels and a display device including the same. The display driving device may include: a first latch circuit configured to latch image data; a source driving circuit configured to form multiple channels, and provide source driving signals corresponding to the image data to a display panel through the multiple channels; and a second latch circuit configured to latch control data for enabling or disabling the multiple channels in units of a predetermined number of channels, and provide a channel enable signal corresponding to the control data to the source driving circuit.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 20, 2019
    Applicant: Silicon Works Co., Ltd.
    Inventor: Young Gi Kim
  • Gate driving circuit, level shifter, and display device
    Patent number: 10319329
    Abstract: The present invention attenuates noise appearing at neighboring electrodes by causing a rising edge of one clock signal to be synchronized with a falling edge of another one clock signal when a clock signal for gate driving is generated.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: June 11, 2019
    Assignee: Silicon Works Co., Ltd.
    Inventors: Hyun Jin Jeon, Jin Soo Byeon, Ji Hun Kim, Young Jin Woo
  • DISPLAY DEVICE
    Publication number: 20190155432
    Abstract: Provided is a display device that transmits and receives data on the basis of a MPI protocol. The display device includes a microcontroller, source drivers, and first and second MPI buses, wherein the microcontroller and the source drivers perform bi-directional communication on the basis of the MPI protocol in which transmission types for occupying the first and second MPI buses are set.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 23, 2019
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Jong Min PARK, Hyun Woo JEONG, Ha Na CHOI, Hun Yong LIM
  • DISPLAY DRIVING DEVICE
    Publication number: 20190156716
    Abstract: Disclosed is a display driving device capable of determining whether a display panel is shorted, based on a voltage level shared by data lines. The display driving device may include: a data driving unit configured to provide source driving signals to data lines of a display panel in a data output period, and control the data lines to share charges in a charge sharing period; and a short monitoring unit configured to detect a voltage level shared in the charge sharing period, and compare the voltage level with a reference voltage that varies according to the voltage level to monitor whether the display panel is shorted.
    Type: Application
    Filed: November 21, 2018
    Publication date: May 23, 2019
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Young Bok KIM, Beom Rak CHOI
  • Pass switch circuit with improved time response characteristics and method of controlling same
    Patent number: 10298219
    Abstract: A pass switch circuit for transferring the voltage of an input node to an output node and a method of controlling the pass switch circuit are disclosed herein. The pass switch circuit includes a pass switch, a first capacitor, and a first switch. The pass switch transfers a voltage level from an input node to an output node. The first capacitor is configured such that the node of one side thereof has a first level of voltage when the voltage of the control node of the pass switch is in a first state. The first switch connects the node of the one side of the first capacitor with the control node of the pass switch.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: May 21, 2019
    Assignee: Silicon Works Co., Ltd.
    Inventors: Seung Jong Lee, Hoo Hyun Cho, Young Jin Woo
  • Control circuit and noise removing method for touch screen
    Patent number: 10296137
    Abstract: Disclosed are a control circuit and a noise removing method for a touch screen. The present invention includes technology for performing differential sensing on the outputs of two adjacent sensing lines of a touch screen panel and integrating a differential sensing signal to filter noises. The control circuit and noise filtering according to the present invention may remove the display noise, tri-wave lamp noise having a predetermined frequency, 60 Hz noise and charger noise caused by battery charging that might affect the two adjacent sensing lines.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: May 21, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Jun Hyeok Yang, Jung Min Choi
  • Battery state-of-charge estimation method and battery management system
    Patent number: 10295604
    Abstract: Provided are a battery state-of-charge (SOC) estimation method and a battery management system which are capable of estimating an SOC using an inexpensive processor and a small-capacity memory. The SOC estimation method includes an SOC table creation step, an SOC calculation step, an SOC comparison step, and a processing step. The battery management system includes a battery, a sensing resistor, a control switch unit, and a processor.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: May 21, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Hyung Seog Oh, Ju Pyo Hong, Chun Sik Chung, Yong Goo Kim, Jae Wan Kim, Chol Ho Kim, Moon Young Kim, Jun Ho Kim, Jin Sik Park
  • Source driver
    Patent number: 10297232
    Abstract: Provided are a display device and a source driver. The source driver may perform a power down mode in response to any one of a vertical blank period, a horizontal blank period, a state in which the load of a panel is maintained at a preset value or less, a state in which a current supplied to the panel is maintained at a preset value or less, or a state in which resolution is maintained at a preset value or less. The source driver can realize the power down mode using various power options, thereby reducing power consumption.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: May 21, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Kwang Il Oh, Soo Woo Kim, Myung Yu Kim, Young Bok Kim
  • LED lighting apparatus
    Patent number: 10299324
    Abstract: Provided is a lighting apparatus. The lighting apparatus may include two or more lighting units each including a plurality of LED groups which sequentially emit light in response to changes of a rectified voltage. The two or more lighting units may include one or more LED groups having the same light emitting sequence but having different light emitting points of time. Thus, current harmonic can be reduced, and power efficiency can be improved.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: May 21, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Gyeong Sik Mun, Sang Young Lee, Ki Chul An, Yong Geun Kim
  • Control circuit and method of LED lighting apparatus
    Patent number: 10271397
    Abstract: Disclosed is a control circuit of an LED lighting apparatus, capable of reducing total harmonic distortion (THD). The control circuit may include a THD reduction circuit configured to control a driving current on a current path corresponding to light emission of an LED group in response to a change of a rectified voltage.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: April 23, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventor: Yong Geun Kim
  • DATA COMMUNICATION SYSTEM, AND DATA TRANSMISSION APPARATUS AND DATA RECEPTION APPARATUS THEREOF
    Publication number: 20190103070
    Abstract: Provided are a data communication system for a high speed interface and a data transmission apparatus and a data reception apparatus of the data communication system. The data communication system includes the data transmission apparatus that configures a packet including a command and a plurality of components, determines a run length of data of the packet, and performs encoding, and the data reception apparatus that decodes the data of the encoded packet.
    Type: Application
    Filed: September 11, 2018
    Publication date: April 4, 2019
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Myung Yu KIM, Hyun Kyu JEON
  • Power switching circuit and method for controlling same
    Patent number: 10249229
    Abstract: A power switching circuit and a method for controlling the same are disclosed herein. The power switching circuit includes a frequency control circuit, a pulse modulation circuit, and a switching convertor. The frequency control circuit receives a first reference signal driving a load, from a timing controller, and generates a second reference signal based on the first reference signal. The pulse modulation circuit generates a pulse control signal by performing pulse width modulation (PWM) or pulse frequency modulation (PFM) on the second reference signal. The switching convertor generates the voltage of output power by switching a switching element connected to the output power, in response to the pulse control signal. The pulse control signal is synchronized with the first reference signal driving the load.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: April 2, 2019
    Assignee: Silicon Works Co., Ltd.
    Inventors: Yoon Soo Shin, Ji Woong Han, Dea Hwan Lee
  • LED lighting apparatus
    Patent number: 10219336
    Abstract: Disclosed is an LED lighting apparatus which includes LED groups and emits light in response to a change of a rectified voltage. The LED lighting apparatus includes a balancing circuit which controls the rectified voltage to be applied to the LED groups in parallel or series to each other.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: February 26, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Gyeong Sik Mun, Ki Soo Kwon
  • Source driver having low power consumption and display device including the source driver
    Patent number: 10204589
    Abstract: Disclosed are a source driver and a display device including the same. The source driver may include: an output buffer unit including a pair of output buffers controlled by a first power down signal and another pair of output buffers controlled by a second power down signal; and a charge sharing unit configured to control output buffers to share charge when the first or second power down signal is enabled, the output buffers being driven in the same driving range among the pair of output buffers and the other pair of output buffers.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: February 12, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Young Bok Kim, Young Tae Kim, Joon Ho Na
  • LOW POWER DRIVING SYSTEM AND TIMING CONTROLLER DISPLAY APPARATUS
    Publication number: 20190043409
    Abstract: The present invention discloses a low power driving system and timing controller for a display apparatus. The low power driving system may include: a timing controller configured to divide a display pattern into a static pattern and a dynamic pattern based on a difference between previous line data and current line data, and transmit a packet into which one of first option information corresponding to the static pattern and second option information corresponding to the dynamic pattern is applied; and a source driver configured to receive the packet, and perform a low power mode corresponding to the static pattern according to the first option information or perform adaptive charge sharing corresponding to the dynamic pattern according to the second option information.
    Type: Application
    Filed: August 1, 2018
    Publication date: February 7, 2019
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Nam Seok SEO, Young Kwang KIM, Young Bok KIM, Hyun Mo YANG, Hae Won LEE, Ju Ho LEE
  • Lighting apparatus
    Patent number: 10201048
    Abstract: Disclosed is a lighting apparatus using an LED as a light source. The lighting apparatus may connect first and second lighting units in series or parallel according to a rectified voltage, change one or more of first and second driving currents corresponding to light emissions of the first and second lighting units, and have the universality for rectified voltages.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: February 5, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Yong Geun Kim, Ki Chul An
  • Panel-driving device and touch-driving device
    Patent number: 10175823
    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: May 25, 2017
    Date of Patent: January 8, 2019
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Yong Sung Ahn, Jeong Lee, Jun Tak Jeon
  • LED LIGHTING APPARATUS
    Publication number: 20180368226
    Abstract: Disclosed is an LED lighting apparatus which includes LED groups and emits light in response to a change of a rectified voltage. The LED lighting apparatus includes a balancing circuit which controls the rectified voltage to be applied to the LED groups in parallel or series to each other.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 20, 2018
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Gyeong Sik MUN, Ki Soo KWON
  • LED LIGHTING APPARATUS
    Publication number: 20180328551
    Abstract: Disclosed is an LED lighting apparatus using a standardized module. The LED lighting apparatus can be configured by assembling a standardized light emitting module and a driving module reflecting a required specification. The driving module includes a driver configured to provide a current path corresponding to light emission of one or more LED groups and regulate a driving current, a sensing resistor connected to the current path of the driver, diodes installed for the respective channel terminals of the driver in order to block a reverse current, and one or more capacitors connected in parallel to the one or more LED groups.
    Type: Application
    Filed: November 15, 2016
    Publication date: November 15, 2018
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Yong Geun KIM, Gyeong Sik MUN