Patents Assigned to Silicon Works Co., Ltd.
  • Publication number: 20210319738
    Abstract: The present disclosure discloses a driving integrated circuit for a display which is configured using MIM capacitors. The driving integrated circuit includes a first circuit formed in a substrate corresponding to a first region of a chip, a second circuit formed in the substrate corresponding to a second region of the chip, a first MIM capacitor formed in a first layer over the substrate and having a first capacity for the first circuit, and a second MIM capacitor formed in a second layer over the substrate and having a second capacity for the second circuit.
    Type: Application
    Filed: April 6, 2021
    Publication date: October 14, 2021
    Applicant: Silicon Works Co., Ltd.
    Inventor: Hee Joo KIM
  • Publication number: 20210320654
    Abstract: The present disclosure discloses a source signal output circuit and an inverter thereof. The inverter is configured to provide a multiplexer with a control signal having a full range for selecting a source signal and to output the control signal having the full range by using elements operating in a low voltage range. Therefore, the present disclosure has an advantage in that it can fabricate a driving circuit having a small area at a low process cost.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 14, 2021
    Applicant: Silicon Works Co., Ltd.
    Inventors: Young Tae Kim, Young Bok Kim, Taiming Piao, Dong Hun Lee
  • Patent number: 11138917
    Abstract: The present disclosure, which relates to a data communication between a micro-controller and a source readout circuit, does not require a clock circuit of a slave, and thus, allows the size of a slave circuit and power consumption to be reduced.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: October 5, 2021
    Assignee: SILICON WORKS CO., LTD.
    Inventor: Yong Woo Choi
  • Publication number: 20210295757
    Abstract: The present disclosure discloses a source driver including a level shift circuit. The source driver may include a level shift circuit outputting second and third logic signals by shifting a level of a first logic signal and a multiplexer transferring a first or second source signal to a first or second pad in response to the second and third logic signals. The level shift circuit may include a first level shifter outputting first and second input signals by shifting the level of the first logic signal, a second level shifter outputting third and fourth input signals by shifting the level of the first logic signal, and an output circuit outputting the second logic signal in response to the second and fourth input signals and outputting the third logic signal in response to the first and third input signals.
    Type: Application
    Filed: March 17, 2021
    Publication date: September 23, 2021
    Applicant: Silicon Works Co., Ltd.
    Inventors: Goon Seok Oh, Hyo Joong Kim
  • Publication number: 20210294478
    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: Application
    Filed: March 8, 2021
    Publication date: September 23, 2021
    Applicant: Silicon Works Co., Ltd.
    Inventor: Yeong Il Jeon
  • Patent number: 11127327
    Abstract: The present disclosure discloses a display driving device and a display device including the same, which are capable of restoring a communication abnormal state to a normal state when a communication abnormality occurs due to an unexpected variable during communication between a timing controller and a plurality of source drivers. The display device may include a timing controller configured to transmit a communication signal, a first source driver connected to the timing controller through a first communication link and configured to receive the communication signal, and a second source driver connected to the timing controller through a second communication link and configured to receive the communication signal.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: September 21, 2021
    Assignee: Silicon Works Co., Ltd.
    Inventors: Myung Yu Kim, Do Seok Kim, Hyun Pyo Cho, Yong Hwan Moon
  • Patent number: 11127337
    Abstract: The present embodiment relates to a device for driving pixels arranged on a display panel, and a data driving device according to the present embodiment can transmit image data to a plurality of channel groups by including two or more mapping units for mapping the image data to a channel link or by using one data mapping unit connected to a plurality of multiplexers.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: September 21, 2021
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Min Young Jeong, Yong Jung Kwon, Ho Sung Hong, Jung Bae Yun, Jeung Hie Choi
  • Publication number: 20210286498
    Abstract: Disclosed is a method of detecting touch coordinates in a touch sensing device. The method of detecting touch coordinates may include calculating touch coordinates of a touch point, determining whether the touch coordinates need to be corrected, extending a first distance between reference coordinates and the touch coordinates to a second distance when the touch coordinates need to be corrected, and correcting the touch coordinates by using a value of the second distance.
    Type: Application
    Filed: March 8, 2021
    Publication date: September 16, 2021
    Applicant: Silicon Works Co., Ltd.
    Inventor: Se Jeong Park
  • Patent number: 11114850
    Abstract: An electrostatic discharge protection circuit includes a first internal circuit formed between a first power line and a first ground line, and configured to operate in a range between a first power and a first ground; a second internal circuit formed between a second power line and a second ground line, and configured to operate in a range between a second power having a level higher than the first power and a second ground; a signal line connecting an output terminal of the first internal circuit and an input terminal of the second internal circuit; and a protection circuit configured to form a bypass path for bypassing a stress due to electrostatic discharge when the electrostatic discharge occurs, between the signal line and the second ground line, to protect a semiconductor device of the second internal circuit from the electrostatic discharge.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: September 7, 2021
    Assignee: Silicon Works Co., Ltd.
    Inventors: Jae Min Kim, Jae Hyun Lee, Yong Nam Choi
  • Patent number: 11114017
    Abstract: A Mura correction driver which corrects Mura detected in a detection image obtained by photographing a display panel. The Mura correction driver uses Mura correction data including a position value of a Mura block for a display panel and coefficient values for the Mura block, and corrects display data corresponding to the position value of the Mura block, by using a Mura correction equation to which the coefficient values of the Mura block are applied.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: September 7, 2021
    Assignee: Silicon Works Co., Ltd.
    Inventors: Ki Taek Kim, Jun Young Park, Doo Hwa Jang, Seung Wan Yu, Do Yeon Kim
  • Patent number: 11114009
    Abstract: Disclosed is a display device including a display panel having a plurality of pixels, each of the pixels including at least two subpixels, the display panel including a first display area and a second display area, the second display area being disposed to overlap an optical module, a memory configured to store shape information of the second display area including position information of a starting point, vertical length information of the second display area, and line-based direction information and width information indicating the border of the second display area, and a controller configured to change an image that is displayed in at least one of the first display area and the second display area using the shape information of the second display area and to perform control such that the changed image is displayed on the display panel.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: September 7, 2021
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Dae Hee Bae, Bo Sung Kim, Jun Hun Park, Ji Hong Yuk, Sung Woo Han, Ji Hoon Choi
  • Publication number: 20210272525
    Abstract: A source driver and a display device including the same, capable of accurately sensing pixels characteristics and characteristics of the source driver. A source driver includes a switch circuit configured to transfer first pixel signals or reference signals; first sensing channels configured to sense and hold the first pixel signals or the reference signals transferred from the switch circuit; second sensing channels configured to sense and hold second pixel signals; and a selection circuit configured to output a sampling signal by selecting the first pixel signals of the first sensing channels and the second pixel signals of the second sensing channels, and thereafter, output the sampling signal by selecting the reference signals of the first sensing channels.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 2, 2021
    Applicant: Silicon Works Co., Ltd.
    Inventors: Seong Geon Kim, Young Bok Kim, Won Kim
  • Patent number: 11107384
    Abstract: A display driving device includes sensing lines configured to sense pixel signals of a display panel; and a voltage limiter provided for each of the sensing lines. The voltage limiter senses a voltage variation of the sensing line, and limits a voltage level of the sensing line to a reference voltage.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: August 31, 2021
    Assignee: Silicon Works Co., Ltd.
    Inventors: Young Bok Kim, Won Kim
  • Patent number: 11107389
    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: Grant
    Filed: December 18, 2018
    Date of Patent: August 31, 2021
    Assignee: Silicon Works Co., Ltd.
    Inventor: Young Gi Kim
  • Publication number: 20210243863
    Abstract: An LED lighting apparatus includes a first LED light source and a second LED light source included in a first light source group; a third LED light source and a fourth LED light source included in a second light source group; a mode detection circuit configured to determine a mode; a current control unit for serial and parallel connection of the first light source group and the second light source group; balancing circuits for serial and parallel connection of the respective light source groups; and a current path providing circuit for providing current paths. The LED lighting apparatus performs light emission in various states depending on the change of a rectified voltage and the change of a mode.
    Type: Application
    Filed: April 23, 2018
    Publication date: August 5, 2021
    Applicant: Silicon Works Co., Ltd.
    Inventors: Gyeong Sik Mun, Ki Soo Kwon, Sang Young Lee, Ki Chul An
  • Patent number: 11069278
    Abstract: The present embodiment relates to a gamma reference voltage output circuit of a display device, and more particularly, to a gamma reference voltage output circuit having a structure for sharing an element required for outputting a gamma reference voltage in the gamma reference voltage output circuit included in each of a plurality of driving chips.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: July 20, 2021
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Kyoung Tae Kim, Jun Sik Woo
  • Patent number: 11067619
    Abstract: Disclosed is an integrated circuit having a trim function for an embedded analog component or digital component. The integrated circuit includes a trim value generator configured to provide a varying trim value, a measurement target selected from a digital component and an analog component and configured to provide a measured value as a result of an internal operation corresponding to the trim value, a determination unit configured to determine the measured value based on a reference value received from the outside and to provide a trim control signal when the measured value corresponds to a preset target value, and a storage configured to store a current trim value as a measured result value in response to the trim control signal.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: July 20, 2021
    Assignee: Silicon Works Co., Ltd.
    Inventor: Il Kwon Kim
  • Publication number: 20210201744
    Abstract: Provided are a mura compensation circuit which prevents a change in color of a pixel upon mura compensations for the pixel and a driving apparatus for a display applying the same. The mura compensation circuit includes a mura memory configured to store mura information including location information of a pixel having mura and compensation values for colors thereof, a gain adjustment unit configured to provide adjustment compensation values generated by applying an adjustment gain having an identical ratio to the compensation values for the colors of the pixel, and a mura compensation unit configured to receive display data of the colors of the pixel and to perform mura compensations on the display data of the colors of the pixel using the adjustment compensation values corresponding to the location information.
    Type: Application
    Filed: December 18, 2020
    Publication date: July 1, 2021
    Applicant: Silicon Works Co., Ltd.
    Inventors: Jun Young Park, Ki Taek Kim
  • Publication number: 20210201745
    Abstract: Provided are a mura compensation circuit and a driving apparatus for a display applying the same. The mura compensation circuit includes a data remapping unit configured to remap display data of a pixel having mura so that an original gray scale range of the display data has a changed gray scale range and to provide the display data having the gray scale range in which the highest gray scale of the original gray scale range is lowered to a first gray scale of the gray scale range and the lowest gray scale of the original gray scale range is raised to a second gray scale by the remapping, and a mura compensation unit configured to perform mura compensations on the display data having the changed gray scale range and to provide the display data on which the mura compensations have been performed.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 1, 2021
    Applicant: Silicon Works Co., Ltd.
    Inventors: Jun Young Park, Ji Won Lee
  • Publication number: 20210201756
    Abstract: A display driving apparatus includes an output control circuit configured to, with one frame being divided into a plurality of blank periods by touch driving, output source signals corresponding to display data during the plurality of blank periods; and a polarity control circuit configured to receive pre-polarity control information for polarity inversion, and control polarities of the source signals outputted from the output control circuit, for polarity inversion by the unit of vertical 2 dots for one frame, wherein polarities for pre dummy lines and active data lines of odd-numbered and even-numbered blank periods are controlled by the pre-polarity control information.
    Type: Application
    Filed: December 18, 2020
    Publication date: July 1, 2021
    Applicant: Silicon Works Co., Ltd.
    Inventors: Yong Min Kim, Ju Ho Lee, Da Sol Won, Se Hyuk An