Patents by Inventor Seunggun HAM

Seunggun HAM 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).

  • ORGANIC LIGHT EMITTING DIODE DISPLAY SYSTEM
    Publication number: 20240046881
    Abstract: An OLED display system includes a display panel, a driving circuit, a voltage generator and a power management application circuit (PMAC). The driving circuit provides scan signals to the display panel. The voltage generator generates a negative voltage based on a first driving voltage having a positive level and a second driving voltage having a negative level and provides the negative voltage to the driving circuit. The PMAC includes a power management application circuit (PMIC) and an additional circuit distinct from the PMIC and disposed externally to the PMIC. The PMIC applies a high power supply voltage and a low power supply voltage to the display panel and generates the first driving voltage based on a battery voltage. The additional circuit generates the second driving Voltage based on the battery voltage. The driving circuit generates at least one of the scan signals based on the negative voltage.
    Type: Application
    Filed: October 20, 2023
    Publication date: February 8, 2024
    Inventors: Byunghun HAN, Insuk KIM, Jungmoon KIM, Sungjin PARK, Seunggun HAM
  • Organic light emitting diode display system
    Patent number: 11798480
    Abstract: An OLED display system includes a display panel, a driving circuit, a voltage generator and a power management application circuit (PMAC). The driving circuit provides scan signals to the display panel. The voltage generator generates a negative voltage based on a first driving voltage having a positive level and a second driving voltage having a negative level and provides the negative voltage to the driving circuit. The PMAC includes a power management application circuit (PMIC) and an additional circuit distinct from the PMIC and disposed externally to the PMIC. The PMIC applies a high power supply voltage and a low power supply voltage to the display panel and generates the first driving voltage based on a battery voltage. The additional circuit generates the second driving voltage based on the battery voltage. The driving circuit generates at least one of the scan signals based on the negative voltage.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: October 24, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byunghun Han, Insuk Kim, Jungmoon Kim, Sungjin Park, Seunggun Ham
  • ORGANIC LIGHT EMITTING DIODE DISPLAY SYSTEM
    Publication number: 20210375209
    Abstract: An OLED display system includes a display panel, a driving circuit, a voltage generator and a power management application circuit (PMAC). The driving circuit provides scan signals to the display panel. The voltage generator generates a negative voltage based on a first driving voltage having a positive level and a second driving voltage having a negative level and provides the negative voltage to the driving circuit. The PMAC includes a power management application circuit (PMIC) and an additional circuit distinct from the PMIC and disposed externally to the PMIC. The PMIC applies a high power supply voltage and a low power supply voltage to the display panel and generates the first driving voltage based on a battery voltage. The additional circuit generates the second driving voltage based on the battery voltage. The driving circuit generates at least one of the scan signals based on the negative voltage.
    Type: Application
    Filed: December 11, 2020
    Publication date: December 2, 2021
    Inventors: Byunghun HAN, Insuk KIM, Jungmoon KIM, Sungjin PARK, Seunggun HAM