Patents Assigned to LX Semicon Co., Ltd.
  • DISPLAY DEVICE AND VISIBILITY IMPROVEMENT METHOD OF IMAGE THEREFOR
    Publication number: 20240274102
    Abstract: The present disclosure discloses a display device for improving visibility of an image and a visibility improvement method of an image therefor, and the display device implements global compensation and local compensation adaptively to content displayed in the image, thereby improving the visibility of the image.
    Type: Application
    Filed: February 2, 2024
    Publication date: August 15, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: Jun Ho HEO, Yong Hee KIM, Byung Cheol SONG, Seung Wan YU, Seung Hyun LEE, Jun Min LEE, Ji Won LEE, Hee Jin LEE, Se Ha JEONG
  • Display driving circuit and frequency correction method of display driving circuit
    Patent number: 12062316
    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: Grant
    Filed: May 19, 2023
    Date of Patent: August 13, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventor: Hyeong Seok Kim
  • Display apparatus having lock function and display driving circuit thereof
    Patent number: 12062319
    Abstract: The present disclosure discloses a display apparatus having a lock function and a display driving circuit thereof. The display driving circuit of the present disclosure is configured to transfer a lock signal in a cascade way, receive a lock signal by pull-up and transfer the lock signal in an open drain form.
    Type: Grant
    Filed: June 15, 2023
    Date of Patent: August 13, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Sung Wan Jung, Seong Bok Cha, Soo Woo Kim, Yong Ik Jung
  • Power supply system for display apparatus
    Patent number: 12062342
    Abstract: A power supply system for a display apparatus, in which a structure for supplying operating voltages for a display panel is improved, and the power supply system may improve power efficiency by generating operating voltages using a system voltage of a high level.
    Type: Grant
    Filed: June 23, 2023
    Date of Patent: August 13, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Won Suk Jang, Tae Kyu Nam, Young Kook Ahn, Chang Jin Jeong
  • Current supply circuit and display device including the same
    Patent number: 12062324
    Abstract: A current mirror circuit includes a first transistor configured to be supplied with a data current from a data driving circuit; a second transistor configured to drive a light emitting diode by mirroring the data current transferred to the first transistor; and a voltage compensation circuit disposed between one terminal of the first transistor and one terminal of the second transistor and configured to compensate for a difference between voltages of the one terminals of the first transistor and the second transistor.
    Type: Grant
    Filed: October 5, 2022
    Date of Patent: August 13, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Ji Hwan Kim, Sang Suk Kim, Jang Su Kim
  • Touch sensing device and touch display driving device for reducing electromagnetic interference
    Patent number: 12061759
    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: Grant
    Filed: October 19, 2022
    Date of Patent: August 13, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Hong Kyun Jung, Sun Young Park, Sung Chun Kim
  • SEMICONDUCTOR DEVICE INCLUDING LOW-VOLTAGE DEVICE AND MIDDLE-VOLTAGE DEVICE, DISPLAY DRIVING DEVICE INCLUDING THE SAME, AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
    Publication number: 20240266368
    Abstract: A semiconductor device according to the present disclosure includes a low-voltage device configured to receive a first level voltage and a first middle-voltage device configured to receive a second level voltage higher than the first level voltage. The low-voltage device includes a low-voltage well region, the first middle-voltage device includes a 1-1st middle-voltage well region and a 1-2nd middle-voltage well region, and the low-voltage well region and the 1-1st middle-voltage well region have a first well concentration with respect to a first conductivity type impurity.
    Type: Application
    Filed: February 7, 2024
    Publication date: August 8, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventor: Kee Joon CHOI
  • Method and apparatus for encoding/decoding a video using a motion compensation
    Patent number: 12058345
    Abstract: The present invention relates to a method for encoding/decoding a video. To this end, the method for decoding a video may include: deriving a spatial merge candidate from at least one of spatial candidate blocks of a current block, deriving a temporal merge candidate from a co-located block of the current block, and generating a prediction block of the current block based on at least one of the derived spatial merge candidate and the derived temporal merge candidate, wherein a reference picture for the temporal merge candidate is selected based on a reference picture list of a current picture including the current block and a reference picture list of a co-located picture including the co-located block.
    Type: Grant
    Filed: July 7, 2023
    Date of Patent: August 6, 2024
    Assignee: LX Semicon Co., Ltd.
    Inventors: Dong San Jun, Ha Hyun Lee, Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Jin Ho Lee, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi
  • Apparatus and method for compressing for coefficient values of compensation equation for compensating for defect in image and circuit for compensating for display data using compression values
    Patent number: 12056901
    Abstract: The present disclosure discloses an apparatus and method for compressing coefficient values of a compensation equation for compensating for a defect in an image and a circuit for compensating for display data using compression values compressed by the apparatus and method. The apparatus for compressing coefficient values of a compensation equation includes a coefficient value provision unit configured to provide coefficient values of a coefficient of a compensation equation for compensating for a defect in an image and location information for each pixel and a coefficient value compression unit configured to provide a first compression bitmap and a second compression bitmap by sequentially performing first compression and second compression on the coefficient value.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: August 6, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Jun Young Park, Min Ji Lee, Ji Won Lee, Suk Ju Kang, Joo Sung Choi
  • METHOD OF TRANSMITTING AND RECEIVING IMAGE SIGNALS AND IMAGE PROCESSING DEVICE FOR IMPLEMENTING THE SAME
    Publication number: 20240256381
    Abstract: Disclosed are a method of transmitting and receiving image signals and an image processing device for implementing the same, by which an error detection code for verification of image related data can be provided in transmitting the image related data to a receiving side from a transmitting side. The disclosure includes generating a control field frame including Average Picture Level (APL) data of image data and an error detection code for the APL data, transmitting the generated control field frame in a vertical blanking period according to a serial interface system, and transmitting pixel data of the image data in a vertical non-blanking period according to the serial interface system.
    Type: Application
    Filed: January 29, 2024
    Publication date: August 1, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: You Jin KWON, A Reum KIM, Jae Eun LEE
  • RESET CIRCUIT AND TIMING CONTROLLER INCLUDING THE SAME
    Publication number: 20240257703
    Abstract: Disclosed is a reset circuit including a low voltage detecting circuit receiving a power signal and outputting a signal, the low voltage detecting circuit including a first cell configured to receive the power signal and output the voltage corresponding to the logic “0” based on the power signal being smaller than a threshold voltage or a voltage corresponding to logic “1” based on the power signal being greater than the threshold voltage, at least one second cell connected in series to the first cell and outputting a signal inputted from the first cell after delaying the signal for a predetermined delay time, and a third cell outputting a low voltage reset signal by receiving all signals outputted from the first cell and the at least one second cell.
    Type: Application
    Filed: January 30, 2024
    Publication date: August 1, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventor: Sang Dae CHOI
  • PROBE CARD AND TEST APPARATUS INCLUDING PROBE CARD
    Publication number: 20240255545
    Abstract: A semiconductor chip disposed on a wafer may be tested by using a probe card provided at an upper portion of a chamber for testing the semiconductor chip. A signal generated from a test module is transmitted to a needle included in the probe card, so that abnormality in the semiconductor chip may be tested.
    Type: Application
    Filed: December 29, 2023
    Publication date: August 1, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: Min Suk KIM, Seung Il HONG
  • CHIP-ON-FILM PACKAGE AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20240258247
    Abstract: Disclosed is a chip-on-film package capable of preventing damage to a surface thereof. The chip-on-film package includes a flexible base film, a first metal wiring layer formed on a first surface of the base film, a first surface insulating layer formed on the first metal wiring layer, a semiconductor chip connected to the first metal wiring layer through an opening formed in the first surface insulating layer, and a spacer formed on the first surface insulating layer within a target area, which is an area within which the first surface insulating layer and a structure of a display panel contact each other. At least one groove is formed in the first surface insulating layer within the target area, and the spacer includes a first spacer filled in the groove.
    Type: Application
    Filed: January 31, 2024
    Publication date: August 1, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: Seung Hoon JIN, Min Ho JEON
  • DISPLAY CONTROL METHOD AND DISPLAY CONTROL DEVICE
    Publication number: 20240257702
    Abstract: Disclosed is a display control method according to embodiments. The display control method includes: transmitting a command for sensing to a driver integrated circuit (DIC); receiving feedback data including a transfer start indicator from the DIC; generating an internal clock signal and shifting a phase of the internal clock signal; checking the transfer start indicator of the feedback data based on the phase-shifted internal clock signal; and repeating receiving the feedback data, generating the internal clock signal, and shifting the phase of the internal clock signal a predetermined number of times. A center value may be determined from among values corresponding to numbers of times that the transfer start indicator is received while repeating the reception, the generation, and the phase shift the predetermined number of times.
    Type: Application
    Filed: January 29, 2024
    Publication date: August 1, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventor: You Jin KWON
  • LIGHT-EMITTING DRIVING DEVICE AND A BACKLIGHT APPARATUS
    Publication number: 20240260153
    Abstract: The light-emitting driving device can include a driving current generation circuit, a sensing circuit, a PWM signal generation circuit, and a controller. The driving current generation circuit can be connected to a channel terminal of a light-emitting string including a plurality of semiconductor light-emitting elements to generate a driving current supplied to the channel terminal. The sensing circuit is connected to the channel terminal to sense a voltage of the channel terminal. The PWM signal generation circuit can generate a PWM signal that controls the supply of driving current. The controller is connected to the sensing circuit to control at least one or more of the intensity of the driving current and the duty ratio of the PWM signal based on the sensed voltage of the channel terminal.
    Type: Application
    Filed: January 31, 2024
    Publication date: August 1, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: Sang Suk KIM, Jang Su KIM, Ji Hwan KIM, Jin Ho CHOI
  • DISPLAY DEVICE AND METHOD OF CONTROLLING THE SAME
    Publication number: 20240257701
    Abstract: Disclosed is a method of controlling a display device, the method including generating a plurality of Average Picture Level (APL) data for each specific period within a vertical blank period by a first display module, transmitting a plurality of the APL data to a second display module at a specific timing point by the first display module, receiving a plurality of the APL data by the second display module, and processing image data by the second display module based on a specific APL data among a plurality of the received APL data.
    Type: Application
    Filed: January 29, 2024
    Publication date: August 1, 2024
    Applicant: LX SEMICON CO., LTD.
    Inventors: You Jin KWON, A Reum KIM, Jae Eun LEE
  • Touch sensing device
    Patent number: 12050750
    Abstract: A touch sensing device configured to drive a plurality of touch sensors according to one embodiment of the present disclosure includes a controller configured to calculate an area of a touch region, intensity of touch sensitivity, and uniformity of the touch sensitivity, and classify whether a touch situation is a normal touch situation or an abnormal touch situation based on the area of the touch region, and the intensity of the touch sensitivity, and the uniformity of the touch sensitivity using sensing signals input from the plurality of touch sensors.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: July 30, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventor: Young Eun Lee
  • System and method for controlling back light unit
    Patent number: 12051382
    Abstract: A system for controlling backlight unit capable of reducing a time difference between an image displayed on a display panel and local dimming of the backlight unit, includes a plurality of dimming control devices configured to receive an input data packet including dimming data, and control local dimming of a light source, which is included in a region assigned in advance in a backlight unit, using the dimming data, a plurality of gate lines configured to electrically connect a predetermined number of dimming control devices and configured to be sequentially driven according to a row driving method, and a micro controller unit configured to generate a gate control signal for driving the plurality of gate lines and the input data packet.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: July 30, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Yun Sung Wang, Soon Hyeok Kwak, Jang Su Kim, Sang Suk Kim
  • Memory device and read/write method of memory device
    Patent number: 12051392
    Abstract: Disclosed are a memory device and a read/write method of the memory device and, more particularly, a memory device and a read/write method of the memory device capable of reducing power consumption of a display device by reducing a storage operation and an output operation of the memory device for a plurality of pieces of pixel data.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: July 30, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventor: Chang Sue Seo
  • Image data processing apparatus and method for driving display panel
    Patent number: 12046197
    Abstract: The present embodiment provides an image data processing apparatus, including a memory storing previous frame image data and an image data compensating circuit configured to generate overdriving image data for current frame image data by comparing the previous frame image data and the current frame image data, wherein the degree of an overdriving is adjusted based on a display brightness value (DBV), which is used for adjusting the brightness of a display panel.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: July 23, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Ji Won Lee, Ji Hong Yuk, Sa Ra Yoon