Patents by Inventor Moah CHOI

Moah CHOI 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).

  • Patent number: 10909938
    Abstract: A display device includes a data driver which outputs a data voltage of a positive polarity or a negative polarity to a data line based on the polarity control signal by a horizontal period, and a number of a positive horizontal period, in which the data voltage of the positive polarity is outputted to the data line, in a frame period is different from a number of a negative horizontal period, in which the data voltage of the negative polarity is outputted to the data line, in the frame period when the frame image data satisfy a condition of an afterimage pattern.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: February 2, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Keon Kim, Wonjong Ohn, Moah Choi
  • Publication number: 20200111439
    Abstract: A display device may include a driving controller which may receive a first image signal and output a second image signal, a voltage and clock generator may receive a gate pulse signal and may generate a driving voltage and a gate clock signal to drive a data driver and a gate driver. A frame period may include an active period in which the second image signal is applied to the pixels and a blank period, and the driving controller changes a frequency of the first control signal and the gate pulse signal such that the blank period becomes longer during the frame period when the first image signal corresponds to a set image pattern.
    Type: Application
    Filed: August 29, 2019
    Publication date: April 9, 2020
    Inventors: Dongkeon KIM, Wonjong OHN, Seonghyeon KIM, Taehoon KIM, Moah CHOI, Suji HAN
  • Publication number: 20200051515
    Abstract: A display device includes a data driver which outputs a data voltage of a positive polarity or a negative polarity to a data line based on the polarity control signal by a horizontal period, and a number of a positive horizontal period, in which the data voltage of the positive polarity is outputted to the data line, in a frame period is different from a number of a negative horizontal period, in which the data voltage of the negative polarity is outputted to the data line, in the frame period when the frame image data satisfy a condition of an afterimage pattern.
    Type: Application
    Filed: May 1, 2019
    Publication date: February 13, 2020
    Inventors: Dong Keon KIM, Wonjong OHN, Moah CHOI