Patents Assigned to Silicon Works Co., Ltd.
  • Controller and display device including the same
    Patent number: 11295661
    Abstract: Disclosed is a display device including a display panel having a plurality of pixels, the display panel comprising a first display area and a second display area, the second display area being disposed so as to overlap an optical module, and a controller configured to generate display area information of each of the plurality of pixels and border information of pixels provided in a border area located within a predetermined range from a border between the first display area and the second display area, to change an image that is displayed in at least one of the first display area or the second display area based on the display area information and the border information upon determining that the optical module is operated, and to perform control such that the changed image is displayed on the display panel.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: April 5, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Dae Hee Bae, Bo Sung Kim, Jun Hun Park, Ji Hong Yuk, Sung Woo Han, Ji Hoon Choi
  • Display driving device and display device including the same
    Patent number: 11295650
    Abstract: The present disclosure discloses a display driving device and a display device including the same, which enable the influence of high voltage noise to be avoided in display panel driving. The display device includes a timing controller configured to transmit a communication signal, which includes a blank pattern and line data, at a horizontal line interval, and a source driver configured to restore the blank pattern and the line data in the communication signal and drive a display panel using the blank pattern and the line data. The timing controller may include a configuration packet in the blank pattern and position the configuration packet in an end period of the blank pattern.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: April 5, 2022
    Assignee: Silicon Works Co., Ltd
    Inventors: Myung Yu Kim, Do Seok Kim, Hyun Pyo Cho, Yong Hwan Moon
  • Touch sensing device and method thereof
    Patent number: 11294507
    Abstract: A touch sensing method includes receiving touch sensitivities; grouping and labeling touch sensitivities each having at least a first reference value, among the touch sensitivities; determining validity of touch sensitivities in each group, by using a maximum touch sensitivity and surrounding touch sensitivities in each group; and skipping calculation of touch coordinates when the touch sensitivities are not valid. The determining of validity of touch sensitivities determines that touch sensitivities of a corresponding group are invalid, when at least one of surrounding touch sensitivities is equal to or less than a second reference value.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: April 5, 2022
    Assignee: Silicon Works Co., Ltd
    Inventor: Yeong Il Jeon
  • Controller and display device including the same
    Patent number: 11289050
    Abstract: Disclosed is a display device including a display panel having a plurality of pixels, the display panel including a first display area having first resolution and a second display area having second resolution, the second resolution being lower than the first resolution, and a controller configured to generate border information of pixels provided in a border area located within a predetermined range from the border between the first display area and the second display area, to correct an image that is displayed in the border area based on the border information, and to perform control such that the corrected image is displayed on the display panel.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: March 29, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Dae Hee Bae, Bo Sung Kim, Jun Hun Park, Ji Hong Yuk, Sung Woo Han, Ji Hoon Choi
  • APPARATUS AND METHOD FOR EVALUATING DEGRADATION OF DISPLAY PANEL AND DISPLAY DRIVER USING DEGRADATION EVALUATION VALUE
    Publication number: 20220093022
    Abstract: Disclosed are an apparatus and method for evaluating the degradation of a display panel, for evaluating a degradation state of a display panel, such as mura. The method of evaluating the degradation of a display panel may be implemented by generating mutual information by using a first histogram distribution vector of a reference frame having a target grayscale level and a second histogram distribution vector of an evaluation frame displayed on a display panel in response to the target grayscale level, generating normalized mutual information of the mutual information, providing a weight into which a cognitive characteristic of a distribution of grayscales of pixels of the evaluation frame is incorporated, and outputting an evaluation value obtained by multiplying the normalized mutual information and the weight.
    Type: Application
    Filed: September 17, 2021
    Publication date: March 24, 2022
    Applicant: Silicon Works Co., Ltd.
    Inventors: Min Ji LEE, Jun Young PARK, Ji Won LEE, Suk Ju KANG, Yu Lim SEO, Jung Hyun KIM
  • Display device and power management integrated circuit
    Patent number: 11282429
    Abstract: The present disclosure, which relates to a power management integrated circuit to dynamically control ripples of driving voltages, allows reducing power consumption of the power management integrated circuit in a section where there is no operation for a display.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: March 22, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Jung Min Choi, Seong Sik Yoon, Sang Woo Kim, Jung Hyun Tark
  • Pixel sensing device and panel driving device for sensing characteristics of pixels
    Patent number: 11282456
    Abstract: The present disclosure provides, in a pixel sensing, a technology in which a parasitic impedance formed in a sensing line does not affect an integrating circuit using a current mirror circuit coupled with an operational amplifier.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: March 22, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Taiming Piao, Young Bok Kim, Won Kim, Byeon Cheol Lee
  • Timing controller for controlling emission of emission element for recognizing touch coordinates and electronic device including the same
    Patent number: 11276355
    Abstract: Disclosed is a timing controller including a coordinate data generation circuit configured to generate X coordinate emission data for acquiring X coordinates and Y coordinate emission data for acquiring Y coordinates, a selection circuit configured to time-divide 1 frame duration to output the X coordinate emission data to a display driving circuit during an X coordinate field and to output the Y coordinate emission data to the display driving circuit during a Y coordinate field, and a control data generation circuit configured to output control data for allowing pixels connected to one data line to emit light in units of 1 data line using the X coordinate emission data during the X coordinate field and allowing pixels connected to one gate line to emit light in units of 1 gate line using the Y coordinate emission data during the Y coordinate field, to the display driving circuit.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: March 15, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: You Jin Kwon, Sang Kwon Kim, Chang Sung Hong, Pyeong Keun Oh, Jun Ho Kwak
  • Display driving apparatus
    Patent number: 11276341
    Abstract: A display driving apparatus includes a first bias circuit configured to provide a first bias current; a second bias circuit configured to provide a second bias current; a selection circuit configured to select and output the first bias current as a bias current during a first period in which a change in a driving current occurs, and select and output the second bias current as the bias current during a second period from after the first period to until a next change in the driving current occurs; and an output buffer configured to drive a first input current or a second input current by the bias current, and output the driving current for driving a panel, in correspondence to the first input current or the second input current.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: March 15, 2022
    Assignee: Silicon Works Co., Ltd
    Inventors: Young Bok Kim, Taiming Piao
  • Device and method for driving display
    Patent number: 11276342
    Abstract: A display driving device capable of performing overdriving compensation for image data using a comparison result between pixel data of a previous sub-pixel and pixel data of a current sub-pixel in units of horizontal lines includes overdriving controller configured to generate overdriving pixel data for a current sub-pixel based on a result of comparison between first pixel data for a previous sub-pixel and second pixel data for the current sub-pixel and a color arrangement pattern of the previous sub-pixel and the current sub-pixel in units of horizontal lines of image data, and a data driver configured to generate a source signal for the current sub-pixel based on one of the second pixel data and the overdriving pixel data to supply the source signal to the current sub-pixel.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: March 15, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Do Seok Kim, Hyun Mo Yang, Young Gi Kim
  • Display device
    Patent number: 11270615
    Abstract: An embodiment of the present disclosure relates to a display device allowing minimizing repetitive transmissions and receptions of identical pieces of image data so as to reduce power consumption due to the repetitive transmissions and receptions of identical pieces of image data.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: March 8, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Jung Min Choi, Ju Ho Lee, Jung Hwan Choi
  • SOURCE DRIVER AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20220068223
    Abstract: A source driver capable of improving sensing accuracy even when a black image signal is provided to reduce motion blur during a sensing period for sensing signals of pixels of a display panel, and a display device including the same. The source driver includes an output buffer configured to output a source signal; a voltage terminal applied with a black image signal of a preset voltage level; a source output terminal connected to a data line of a display panel; and a switch circuit configured to connect one of an output terminal of the output buffer and the voltage terminal to the source output terminal, wherein the switch circuit connects the voltage terminal to the source output terminal during a black image insertion period of a sensing period in which a pixel of the display panel is sensed.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 3, 2022
    Applicant: Silicon Works Co., Ltd.
    Inventors: Won KIM, Young Bok KIM
  • MOBILE PHONE HAVING FLASH MEMORY RESET FUNCTION AND FLASH MEMORY CONTROL APPARATUS THEREOF
    Publication number: 20220066881
    Abstract: A mobile phone having a flash memory reset function, which solves a malfunction of the mobile phone due to an abnormal state of a flash memory, and a flash memory control apparatus thereof. The flash memory control apparatus includes an application processor configured to provide the hold signal and the chip select signal for resetting when it is determined, on the basis of error information due to a read error of an integrated circuit operating by reading flash data, that an abnormal case due to a read error for the flash data has occurred more than a predetermined number of times; and a flash memory configured to reset the flash data when the hold signal and the chip select signal for resetting are received.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 3, 2022
    Applicant: Silicon Works Co., Ltd.
    Inventor: Myung Kyu JEON
  • RATIOMETRIC ANALOG-TO-DIGITAL CONVERSION CIRCUIT
    Publication number: 20220060194
    Abstract: A ratiometric analog-to-digital conversion circuit includes a first voltage range operation circuit configured to use a first power supply voltage of a first voltage range, and output an analog signal corresponding to an external input signal; and a second voltage range operation circuit configured to use a second power supply voltage of a second voltage range, generate a digital value by analog-to-digital converting the analog signal, feed back the digital value for analog-to-digital conversion, and output a digital signal corresponding to the digital value and proportional to the input signal.
    Type: Application
    Filed: August 18, 2021
    Publication date: February 24, 2022
    Applicant: Silicon Works Co., Ltd.
    Inventor: Jang Hyun YOON
  • Touch sensing device and touch sensing method
    Patent number: 11256370
    Abstract: A touch sensing device according to one aspect of the present disclosure includes a touch coordinate calculation unit configured to calculate a touch coordinate corresponding to the touch label on the basis of touch intensities of touch electrodes included in the touch label, a representative value calculation unit configured to calculate a representative value of the touch label by correcting the maximum touch intensity value of the touch label on the basis of a coordinate of a target touch electrode and the touch coordinate when the touch input corresponding to the touch coordinate is detected in the edge region of the target touch electrode among the touch electrodes, and a touch coordinate transmission unit configured to determine the touch input as a normal touch when the representative value is greater than or equal to a first threshold and transmit the touch coordinate to a host system.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: February 22, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventor: Yang Been Lim
  • ESD PROTECTION CIRCUIT
    Publication number: 20220052521
    Abstract: Disclosed is an ESD protection circuit which performs a protection operation by detecting an introduction of an ESD signal when the ESD signal is introduced through a power line. The ESD protection circuit includes a noise detection circuit configured to provide a first detection signal which detects power noise or an ESD signal introduced through a power line; an ESD detection circuit configured to provide a second detection signal which detects an ESD signal introduced through the power line; and a pull-down control circuit configured to perform pull-down on the ESD signal of the power line when the first detection signal which detects the power noise or the ESD signal and the second detection signal which detects the ESD signal are received.
    Type: Application
    Filed: August 13, 2021
    Publication date: February 17, 2022
    Applicant: Silicon Works Co., Ltd.
    Inventor: Jang Hyun YOON
  • HIGH SPEED LEVEL SHIFTER
    Publication number: 20220052674
    Abstract: Disclosed is a high speed level shifter which converts a low voltage into a high voltage. The high speed level shifter includes an output circuit configured to output an output signal of a high voltage range in response to an input signal of a low voltage range; an input circuit operated in the low voltage range, and configured to control output of the output signal through an output terminal in response to the input signal; and a connection circuit configured to drop a voltage applied to the input circuit from the output circuit.
    Type: Application
    Filed: August 13, 2021
    Publication date: February 17, 2022
    Applicant: Silicon Works Co., Ltd.
    Inventor: Jang Hyun YOON
  • Driver integrated circuit and display driving device including the same
    Patent number: 11250807
    Abstract: Disclosed herein is a driver integrated circuit (IC), which can be miniaturized and includes a plurality of circuits, including a first substrate, a first circuit driven at a first level voltage and mounted on the first substrate, a second substrate bonded to the first substrate, and a second circuit including one or more sub-circuits driven at a second level voltage that is higher than the first level voltage, wherein at least one among the one or more sub-circuits is mounted on the second substrate.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: February 15, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventor: Kee Joon Choi
  • ALL-DIGITAL PHASE-LOCKED LOOP
    Publication number: 20220038104
    Abstract: The present disclosure discloses an all-digital phase-locked loop. The all-digital phase-locked loop may include a time-to-digital conversion circuit configured to convert phase differences between a reference signal and a feedback signal into respective digital values and to output a first data signal and a second data signal corresponding to the respective digital values, a digital loop filter configured to select one of the first data signal and the second data signal as valid data and output a control signal by operating the valid data and a first register signal, a digitally controlled oscillator configured to generate an oscillation signal and control a frequency of the oscillation signal in response to the control signal, and a divider configured to divide the oscillation signal and output the feedback signal to the time-to-digital conversion circuit.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 3, 2022
    Applicant: Silicon Works Co., Ltd.
    Inventors: Jong Suk LEE, Young Bok KIM, Chung Hwan SON, Seok Jae OH, Yeh Ju KA
  • DIGITAL LOOP FILTER IN ALL-DIGITAL PHASE-LOCKED LOOP
    Publication number: 20220038106
    Abstract: The present disclosure discloses a digital loop filter in an all-digital phase-locked loop. The digital loop filter may include a selection circuit configured to output one of a first data signal and a second data signal as valid data, a first operation circuit configured to output a first operation signal by adding or subtracting the valid data and a first register signal, a first register circuit configured to register the first operation signal and output the first operation signal as the first register signal, a second operation circuit configured to output a second operation signal by adding or subtracting a value of at least one bit of the valid data and the first register signal, and a second register circuit configured to store the second operation signal and output the second operation signal as a control signal.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 3, 2022
    Applicant: Silicon Works Co., Ltd.
    Inventors: Jong Suk LEE, Young Bok KIM, Chung Hwan SON, Seok Jae OH, Yeh Ju KA