Patents by Inventor Byung Gwan JEON

Byung Gwan JEON has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pixel circuit and pixel driving apparatus
    Patent number: 11935456
    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: Grant
    Filed: December 19, 2022
    Date of Patent: March 19, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Won Youn Kim, Byung Gwan Jeon
  • PIXEL CIRCUIT AND PIXEL DRIVING APPARATUS
    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