Patents by Inventor Geon Hwi PARK

Geon Hwi PARK 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).

  • Display device and method for measuring gamma of the same
    Patent number: 11710461
    Abstract: A gamma measurement method of a display device includes: storing a current value that is measured during gamma tuning of a display panel; resetting a target current of global current management (GCM) by referring to the current value; and measuring gamma of the display panel while applying the target current of the GCM.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: July 25, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Geon Hwi Park, Jung Eon An, Ki Hyun Pyun
  • DISPLAY DEVICE AND METHOD FOR MEASURING GAMMA OF THE SAME
    Publication number: 20220301508
    Abstract: A gamma measurement method of a display device includes: storing a current value that is measured during gamma tuning of a display panel; resetting a target current of global current management (GCM) by referring to the current value; and measuring gamma of the display panel while applying the target current of the GCM.
    Type: Application
    Filed: December 8, 2021
    Publication date: September 22, 2022
    Inventors: Geon Hwi PARK, Jung Eon AN, Ki Hyun PYUN
  • Display device and method of driving the same
    Patent number: 11398182
    Abstract: A display device may include a pixel set, a timing controller, a data driver, and a scale factor provider. The pixel set that may include pixels. The pixels may be divided into pixel groups. The timing controller may calculate first load values corresponding to an image frame of input image data and may generate image data by scaling gradation values of the input image data using scale factors. The data driver may generate data signals corresponding to the image data and may supply the data signals to the pixel set. The scale factor provider may calculate the first load values and one or more second load values based on temperature data corresponding to a temperature of the pixel set and may generate the scale factors based on the one or more second load values and a common current value of a current received by the pixels.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: July 26, 2022
    Inventors: Geon Hwi Park, Young Woon Choi, Ki Hyun Pyun
  • DISPLAY DEVICE AND METHOD OF DRIVING THE SAME
    Publication number: 20220108650
    Abstract: A display device may include a pixel set, a timing controller, a data driver, and a scale factor provider. The pixel set that may include pixels. The pixels may be divided into pixel groups. The timing controller may calculate first load values corresponding to an image frame of input image data and may generate image data by scaling gradation values of the input image data using scale factors. The data driver may generate data signals corresponding to the image data and may supply the data signals to the pixel set. The scale factor provider may calculate the first load values and one or more second load values based on temperature data corresponding to a temperature of the pixel set and may generate the scale factors based on the one or more second load values and a common current value of a current received by the pixels.
    Type: Application
    Filed: June 7, 2021
    Publication date: April 7, 2022
    Inventors: Geon Hwi PARK, Young Woon CHOI, Ki Hyun PYUN