Patents by Inventor Jeong Hyo PARK

Jeong Hyo 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).

  • Patent number: 10157580
    Abstract: An organic light emitting display includes a data driver supplying a sensing data voltage in a sensing mode to prevent degradation of image quality occurring due to a kick-back phenomenon. Each pixel of a display panel of the organic light emitting display has its driving characteristic sensed in the sensing mode. The data driver is configured to supply a high driving voltage, which is higher than the supplied sensing data voltage, and both voltages are successively applied to a data line of the display panel in the sensing mode.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: December 18, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Min-Kyu Chang, Sung-Woo Park, Shinji Takasugi, Hyo-Jin Park, Jeong-Hyo Park, Jeong-Pyo Lee
  • Publication number: 20160189630
    Abstract: The present invention relates to an organic light emitting display capable of preventing degradation of image quality occurring due to a kick-back phenomenon, and the organic light emitting display according to the present invention successively supplies a high driving voltage, which is higher than a sensing data voltage, and the sensing data voltage to a data line of a display panel in a sensing mode in which a driving characteristic of a pixel is sensed.
    Type: Application
    Filed: December 15, 2015
    Publication date: June 30, 2016
    Applicant: LG Display Co., Ltd.
    Inventors: Min-Kyu Chang, Sung-Woo Park, Shinji Takasugi, Hyo-Jin Park, Jeong-Hyo Park, Jeong-Pyo Lee
  • Patent number: 9135862
    Abstract: Disclosed is an organic light emitting display device, which is capable of compensating for variations in the characteristics of driving transistors, comprising a display panel including a plurality of pixels, each pixel having a driving transistor for operating a light emitting device to make the light emitting device emit light with a data current corresponding to a data voltage; a panel driver for detecting the characteristics of the driving transistors including at least one of mobility and threshold voltage of the driving transistor included in each pixel during a time period when there exists no user around the display panel, generating compensated input data by compensating input data according to the characteristics after the detection of the characteristics is completed, and generating data voltage through the use of the compensated input data; and a sensor for sensing whether or not there exists a user around the display panel, and supplying the sensing result to the panel driver.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: September 15, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong Hyo Park, Byung Chul Ahn, Ho Min Lim
  • Patent number: 9111489
    Abstract: Disclosed are an organic light emitting display device and a method of driving the same. The organic light emitting display device includes a display panel including a plurality of pixels including a pixel circuit for emitting light from an organic light emitting diode and a driving circuit unit driving the display panel. The driving method includes sensing a characteristic of a driving TFT of each of the pixels of the display panel to generate sensing data according to a user's setting using an input device, at a predetermined compensation driving time, or when an error occurs in sensing data generated by real-time sensing of each pixel of the display panel, and compensating for the characteristic of the driving TFT of each pixel by using the sensing data.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: August 18, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jeong Hyo Park, Bum Sik Kim, Jung Hyeon Kim
  • Publication number: 20140176400
    Abstract: Disclosed are an organic light emitting display device and a method of driving the same. The organic light emitting display device includes a display panel including a plurality of pixels including a pixel circuit for emitting light from an organic light emitting diode and a driving circuit unit driving the display panel. The driving method includes sensing a characteristic of a driving TFT of each of the pixels of the display panel to generate sensing data according to a user's setting using an input device, at a predetermined compensation driving time, or when an error occurs in sensing data generated by real-time sensing of each pixel of the display panel, and compensating for the characteristic of the driving TFT of each pixel by using the sensing data.
    Type: Application
    Filed: November 20, 2013
    Publication date: June 26, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jeong Hyo Park, Bum Sik Kim, Jung Hyeon Kim
  • Publication number: 20140152633
    Abstract: Disclosed is an organic light emitting display device, which is capable of compensating for variations in the characteristics of driving transistors, comprising a display panel including a plurality of pixels, each pixel having a driving transistor for operating a light emitting device to make the light emitting device emit light with a data current corresponding to a data voltage; a panel driver for detecting the characteristics of the driving transistors including at least one of mobility and threshold voltage of the driving transistor included in each pixel during a time period when there exists no user around the display panel, generating compensated input data by compensating input data according to the characteristics after the detection of the characteristics is completed, and generating data voltage through the use of the compensated input data; and a sensor for sensing whether or not there exists a user around the display panel, and supplying the sensing result to the panel driver.
    Type: Application
    Filed: August 2, 2013
    Publication date: June 5, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Jeong Hyo PARK, Byung Chul AHN, Ho Min LIM