Patents Assigned to LX Semicon Co., Ltd.
  • Publication number: 20230289016
    Abstract: The present disclosure relates to a touch power management circuit and a touch driving system comprising the same, and more particularly, relates to a touch power management circuit to generate signals required for a touch driving by using voltage sources different in a pen touch driving period and a finger touch driving period in order to reduce power consumption of a display device and a touch driving system comprising the touch power management circuit.
    Type: Application
    Filed: May 22, 2023
    Publication date: September 14, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Seong Sik YOON, Seong Wha HONG
  • Publication number: 20230290294
    Abstract: Disclosed are a display driving circuit and a frequency correction method of the display driving circuit, capable of quickly correcting a frequency change of a clock signal when a display device is driven at a low scan rate.
    Type: Application
    Filed: May 19, 2023
    Publication date: September 14, 2023
    Applicant: LX SEMICON CO., LTD.
    Inventor: Hyeong Seok Kim
  • Publication number: 20230239466
    Abstract: An image encoding/decoding method and apparatus for predicting a second color component block using a first color component block are provided. An image decoding method of the present invention comprises deriving a prediction parameter using the first color component block, and predicting the second color component block using the derived prediction parameter.
    Type: Application
    Filed: April 4, 2023
    Publication date: July 27, 2023
    Applicant: LX SEMICON CO., LTD
    Inventors: Jin Ho LEE, Hyun Suk KO, Jung Won KANG, Sung Chang LIM, Ha Hyun LEE, Dong San JUN, Seung Hyun CHO, Hui Yong KIM, Jin Soo CHOI
  • Publication number: 20230230519
    Abstract: The present disclosure relates to a data driving device and a display device including the same, and more particularly, to a data driving device and a display device including the same, capable of improving the slew rate and the display speed of the display device by overdriving a pixel of a display panel with a power voltage of the data driving device.
    Type: Application
    Filed: March 29, 2023
    Publication date: July 20, 2023
    Applicant: LX SEMICON CO., LTD.
    Inventor: Jung Min Choi
  • Publication number: 20230215309
    Abstract: The present disclosure discloses a display driving circuit. The display driving circuit is configured to have a function of detecting a short of a data line occurring on a display panel.
    Type: Application
    Filed: December 19, 2022
    Publication date: July 6, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Taiming PIAO, Young Tae KIM, Won KIM
  • Publication number: 20230215325
    Abstract: An embodiment provides a latch circuit which outputs, to a digital analog converter (DAC), a digital signal including grayscale data, the latch circuit including a first latch configured to store the digital signal and a second latch configured to output the digital signal by controlling first timing at which a level of a first signal included in the digital signal becomes an enable level, based on a center grayscale. The grayscale data includes first grayscale data and second grayscale data.
    Type: Application
    Filed: December 19, 2022
    Publication date: July 6, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Gi Baek CHOI, Jong Hwi PARK, Yong Jung KWON, Jung Bae YUN
  • Publication number: 20230216416
    Abstract: The present disclosure provides for sequentially turning on a plurality of power conversion modules according to the magnitude of load power at the time of driving the power conversion modules, operating power conversion modules which have already been turned on in an optimum efficiency interval, and providing increased load power through a power conversion module which has been newly turned on.
    Type: Application
    Filed: December 28, 2022
    Publication date: July 6, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Won Suk JANG, Tae Kyu NAM, Young Kook AHN, Sang Woo KIM, Jung Woong PARK, Tae Heon LEE, In Ho JEON
  • Publication number: 20230215352
    Abstract: The present disclosure relates to a technology for performing a hybrid driving in order to increase accuracy of a low current driving when driving a light emitting diode and allows an LED driving circuit to perform a PWM driving when a current is low and to perform a PAM driving when a current is high and this leads to an elaborate adjustment of a grayscale.
    Type: Application
    Filed: January 4, 2023
    Publication date: July 6, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventor: Sang Suk KIM
  • Publication number: 20230215340
    Abstract: The present disclosure relates to a power management circuit including a multiplexer and a power converter, and can provide technology that implements a multiplexer selecting and outputting input power to the power management circuit and a power converter controlling input voltage of a timing controller as one integrated circuit.
    Type: Application
    Filed: December 29, 2022
    Publication date: July 6, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventor: Jung Min CHOI
  • Publication number: 20230215330
    Abstract: The present disclosure relates to a data processing device, a data driving device, and a system for driving a display device, and more particularly, to a data processing device, a data driving device, and a system capable of reducing power consumption of the display device.
    Type: Application
    Filed: December 28, 2022
    Publication date: July 6, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventor: Jung Min CHOI
  • Publication number: 20230205368
    Abstract: The present disclosure relates to a touch sensing device and a coordinate correction method, and more particularly, to a technique of determining a degree, to which a drawn line is curved (a straight line/a curved line), according to gradient values of straight lines that can be generated by touch coordinates and adaptively correcting the coordinates.
    Type: Application
    Filed: December 5, 2022
    Publication date: June 29, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventor: Chan Hee HAN
  • Publication number: 20230205348
    Abstract: Disclosed herein is a touch sensing device including a first touch controller configured to transmit and receive data, wherein the first touch controller includes a clock terminal and a plurality of input/output terminals, and ternary data is transmitted and received through the clock terminal and at least two terminals among the plurality of input/output terminals of the first touch controller, and binary data is transmitted through the remaining input/output terminals.
    Type: Application
    Filed: October 19, 2022
    Publication date: June 29, 2023
    Applicant: LX SEMICON CO., LTD.
    Inventors: Hong Kyun JUNG, Sun Young PARK, Sung Chun KIM
  • Publication number: 20230205380
    Abstract: The present disclosure relates to a technology for sensing a touch input by differently adjusting a ratio of a threshold for each touch location, and can provide a technology for incorporating a difference between touch sensing sensitivity at the center of a touch area and touch sensing sensitivity in the periphery of the touch area by setting a threshold by incorporating a ratio of touch intensity at an offset location and touch intensity at an adjacent location.
    Type: Application
    Filed: December 27, 2022
    Publication date: June 29, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Young Ju PARK, Young Eun LEE
  • Publication number: 20230206805
    Abstract: The present disclosure discloses a display driving apparatus. The display driving apparatus of the present disclosure may be configured to drive a source signal in a state optimized for a panel load of a display panel.
    Type: Application
    Filed: December 19, 2022
    Publication date: June 29, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Dong Hun LEE, Won KIM, Young Tae KIM, Taiming PIAO, Chang Gi MIN
  • Patent number: 11689716
    Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise constructing N MPM lists for a current block, wherein N is equal to or greater than 1, deriving an intra prediction mode of the current block based on the N MPM lists, and performing intra prediction for the current block based on the intra prediction mode.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: June 27, 2023
    Assignee: LX SEMICON CO., LTD
    Inventors: Hyun Suk Ko, Sung Chang Lim, Jung Won Kang, Dong San Jun, Seung Hyun Cho, Jin Ho Lee, Ha Hyun Lee, Hui Yong Kim, Jin Soo Choi
  • Publication number: 20230195258
    Abstract: The present disclosure relates to a touch sensing device and a touch sensing method, and more particularly, to a touch sensing device and a touch sensing method to prevent a tracking error of touch coordinates.
    Type: Application
    Filed: December 9, 2022
    Publication date: June 22, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventor: Yang Been LIM
  • Publication number: 20230197557
    Abstract: The present disclosure relates to a power semiconductor module of which heat is dissipated by its both sides and provides a power semiconductor module technology in which a mold is formed in a surrounding space of a power semiconductor die, and then, wires are formed on upper and lower sides of the power semiconductor die and substrates are disposed on upper and lower sides of the wires.
    Type: Application
    Filed: December 13, 2022
    Publication date: June 22, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Tae Ryong KIM, Deog Soo KIM
  • Publication number: 20230198407
    Abstract: The present disclosure provides a technique for sensing a peak through current sensing in a buck-boost DC/DC converter and estimating a turn-off time of a switch using the peak to perform a discontinuous current mode (DCM) operation.
    Type: Application
    Filed: December 19, 2022
    Publication date: June 22, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventor: Young Kook AHN
  • Publication number: 20230197005
    Abstract: The present disclosure relates to a pixel circuit and pixel driving apparatus technology. In this technology, two LEDs are arranged in parallel and selectively used in a hybrid manner in which a PWM (pulse width modulation) scheme for supplying a ramp voltage as a gate voltage for a transistor arranged within a pixel and for turning off the LEDs at the moment when the gate voltage becomes equal to a threshold voltage and a PAM (pulse amplitude modulation) scheme for determining a starting value of the ramp voltage based on a grayscale value of the pixel are combined.
    Type: Application
    Filed: December 19, 2022
    Publication date: June 22, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Won Youn KIM, Byung Gwan JEON
  • Publication number: 20230197581
    Abstract: The present disclosure provides a power semiconductor module in which a lead frame paddle is extended to form a source lead, a source electrode of a power semiconductor die is electrically connected to the lead frame paddle, a drain electrode is insulated from the lead frame paddle, and a part of the lead frame paddle is exposed to the outside of a mold.
    Type: Application
    Filed: December 19, 2022
    Publication date: June 22, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Tae Ryong KIM, Deog Soo KIM, Dong Woo MOON