Patents by Inventor Duk-Jin Lee

Duk-Jin Lee 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).

  • Publication number: 20110127498
    Abstract: An organic light emitting diode (OLED) display device includes a first substrate; a first electrode positioned on the first substrate; an organic light emission layer positioned on the first electrode; a second electrode positioned on the organic light emission layer; and a capping layer positioned on the second electrode to cover the organic light emission layer and including an ultraviolet (UV) interception material intercepting UV rays irradiated to the organic light emission layer from the exterior.
    Type: Application
    Filed: August 31, 2010
    Publication date: June 2, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Woo-Suk Jung, Soon-Ryong Park, Duk-Jin Lee, Sa-Bang Um, Jae-Yong Kim
  • Publication number: 20110115830
    Abstract: An organic light emitting display includes a display unit divided into a plurality of fields (regions), data and scan drivers, a power supply, and a driving voltage calculator. The display unit has a plurality of cathode electrodes corresponding to the respective fields, and is configured to display an image in response to data and scan signals. The data and scan drivers respectively supply the data and scan signals to the display unit. The power supply has a first output terminal for outputting a first power and a plurality of second output terminals for outputting a plurality of second powers to the plurality of cathode electrodes. The driving voltage calculator calculates the voltage of each of the second powers for a respective one of the cathode electrodes based on a magnitude of a respective one of the data signals.
    Type: Application
    Filed: July 12, 2010
    Publication date: May 19, 2011
    Inventors: Duk-Jin Lee, Soon-Ryong Park, Woo-Suk Jung, Min-Jae Kim
  • Publication number: 20110115832
    Abstract: A display device includes: a panel including a plurality of pixel circuits, each of the pixel circuits including a light emitting element having one end coupled to a first voltage source for supplying a first voltage and another end coupled to a second voltage source for supplying a second voltage; a controller for reducing image data for one frame and for outputting a control signal and a data signal to display an image corresponding to the reduced image data on the panel; a voltage difference setting unit for detecting a peak value of the reduced image data and for calculating a driving voltage for generating a peak driving current corresponding to the peak value; and a power supply for generating the first and second voltages and for providing the first and second voltages to the panel in accordance with the driving voltage.
    Type: Application
    Filed: August 26, 2010
    Publication date: May 19, 2011
    Inventors: Duk-Jin Lee, Soon-Ryong Park, Woo-Suk Jung
  • Publication number: 20100103599
    Abstract: Provided are a flat panel display device including a protection board configured to prevent damage of a display panel from external impact, and a method of fabricating the same. The display panel and the protection board are closely attached, and distortion of an image displayed on the display panel due to a space between the display panel and the protection board can be prevented. The flat panel display device includes a display panel including a lower substrate, an upper substrate and at least one light emitting element disposed between the lower and upper substrates, a protection board disposed on the display panel, and an adhesive layer disposed between the display panel and the protection board.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 29, 2010
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Noh-Min Kwak, Dai-Han Cho, Gi-Na Yoo, Min-Jae Kim, Jeong-No Lee, Woo-Suk Jung, Duk-Jin Lee
  • Publication number: 20090322214
    Abstract: An organic light emitting diode (OLED) display and a method of manufacturing the same are provided. The OLED display includes: a display panel assembly including a first substrate having a display area and a mounting area, a second substrate coupled to the display area of the first substrate, and an integrated circuit chip mounted in the mounting area of the first substrate; a cover window disposed opposite the second substrate and the integrated circuit chip and covering the display panel assembly; and an adhesive layer which fills up a space between the second substrate and the cover window, and a space between the mounting area of the first substrate and the cover window.
    Type: Application
    Filed: February 27, 2009
    Publication date: December 31, 2009
    Inventors: Duk-Jin Lee, Noh-Min Kwak, Woo-Suk Jung, Sang-Hun Park, Kyu-Ho Jung
  • Publication number: 20090251775
    Abstract: A display device is provided with a display panel displaying variable visual images, a transparent protective unit located at a front side of the display panel, an adhesive layer that is formed between the display panel and the transparent protective unit to adhere the transparent protective unit to the display panel, and a fixing member disposed at a rear side of the display panel and surrounding and fixing side surfaces of the display panel and the adhesive layer.
    Type: Application
    Filed: April 3, 2009
    Publication date: October 8, 2009
    Inventors: Woo-Suk Jung, Duk-Jin Lee, Noh-Min Kwak, Gi-Na Yoo, Min-Jae Kim
  • Publication number: 20090195484
    Abstract: An organic light emitting display and a driving method thereof. The organic light emitting display includes a display unit for emitting light in response to a current flowing through the display unit from a first power supply to a second power supply. The current corresponds to a data signal and a scan signal. According to one embodiment, the organic light emitting display further includes a power supply unit having a first output terminal for outputting a first power of the first power supply and a second output terminal for outputting a second power of the second power supply to the display unit, and a driving voltage calculation unit for determining a voltage of the second power corresponding to the current, thereby the power consumption of the organic light emitting display may be reduced.
    Type: Application
    Filed: July 15, 2008
    Publication date: August 6, 2009
    Inventors: Duk-Jin Lee, Jeong-No Lee, Noh-Min Kwak, Woo-Suk Jung, Gi-Na Yoo, Min-Jae Kim
  • Publication number: 20090174317
    Abstract: A display device that increases visibility and that reduces the entire thickness of the device and is suitable for mobile appliances and other applications. The display device includes a display panel that has a display area and a non-display area, a transparent protective unit that is positioned at the front of the display panel, an adhesive layer that is formed between the display area and the transparent protective unit to attach the transparent protective unit to the display panel, an adhesive tape that is positioned between the non-display area and the transparent protective unit while enclosing the adhesive layer, and a bezel that is coupled to the display panel at the rear of the display panel. The adhesive tape forms at least one opening.
    Type: Application
    Filed: November 20, 2008
    Publication date: July 9, 2009
    Inventors: Woo-Suk Jung, Duk-Jin Lee, Noh-Min Kwak, Gi-Na Yoo, Min-Jae Kim
  • Publication number: 20080246749
    Abstract: An organic light emitting diode (OLED) display includes an illuminance sensing unit configured to sense an external illuminance, a brightness determination unit configured to determine a brightness of the OLED display according to an illuminance sensed by the illuminance sensing unit, a driving voltage determination unit configured to determine a driving voltage corresponding with a current saturation point of the OLED display, the driving voltage being determined based at least in part on a driving current and the brightness determined by the brightness determination unit, a voltage conversion unit configured to receive an input voltage, generate a first voltage higher than the input voltage, and generate a second voltage lower than the input voltage, and a display unit configured to receive the first and second voltages from the voltage conversion unit and display an image.
    Type: Application
    Filed: January 14, 2008
    Publication date: October 9, 2008
    Inventors: Duk-Jin Lee, Jeong-No Lee