Patents by Inventor Seung-Kyun Hong

Seung-Kyun Hong 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: 20150294625
    Abstract: An organic light-emitting display includes a display unit including a plurality of pixels; and a controller configured to correct first image data having a first gray level, which is included in image data, to have a second gray level higher than the first gray level, wherein the controller is configured to correct the first image data at intervals of N frames, where N is an integer of one or more.
    Type: Application
    Filed: July 29, 2014
    Publication date: October 15, 2015
    Inventors: Dong Hwan Lee, Ju Gon Seok, In Soo Lee, Seung Kyun Hong
  • Patent number: 9153177
    Abstract: An apparatus for generating a gray scale voltage in an organic light emitting display device is disclosed. In one aspect, the apparatus includes a gamma reference voltage generator, a gray scale voltage output unit and a gray scale voltage selector. The gamma reference voltage generator outputs a gamma reference voltage. The gray scale voltage output unit outputs N first gray scale voltages, based on the gamma reference voltage. The gray scale voltage selector has a lookup table in which voltage values respectively corresponding M reference gray scales are previously set, and outputs second gray scale voltages by selecting M of the N first gray scale voltages.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 6, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Kyun Hong, So-Young Park
  • Patent number: 9127817
    Abstract: A lighting device may be provided that includes: a light source including: a member which includes a first placement portion and a second placement portion; a light source module which is disposed in the first placement portion; and a first terminal which is disposed in the second placement portion and is electrically connected to the light source module; and a heat sink including: a first receiver in which the second placement portion of the member is disposed; a second receiver in which a circuitry is disposed; and a second terminal which is disposed corresponding to the first terminal of the light source.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: September 8, 2015
    Assignee: LG Innotek Co., Ltd.
    Inventors: Byeong Guk Min, Jae O Kwak, In Soo Park, Seung Kyun Hong
  • Publication number: 20150170568
    Abstract: Disclosed is a display device including a light emission driver configured to sequentially generate a plurality of light emission signals having a disable level during a first period; and a scan driver configured to generate a plurality of shift outputs each having two enable pulses, and each outputting two scan signals, in response to two light emission signals among the plurality of light emission signals, by dividing the two enable pulses of a first shift output among the plurality of shift outputs, which correspond to the two light emission signals among the plurality of light emission signals, from each other.
    Type: Application
    Filed: June 18, 2014
    Publication date: June 18, 2015
    Inventors: In Soo Lee, Dong Hwan Lee, Seung Kyun Hong, So Young Park
  • Publication number: 20150138258
    Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a pixel unit and an emission driver. The pixel unit includes a plurality of pixels. The emission driver is configured to output an emission control signal wherein the emission control signal includes a plurality of odd-numbered frames and a plurality of even-numbered frames. Each of the odd-numbered and even-numbered frames includes at least one emission period and at least one non-emission period, and each odd-numbered frame and each even-numbered frame have respectively a different number of non-emission periods.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 21, 2015
    Inventors: In-Soo Lee, Dong-Hwan Lee, Seung-Kyun Hong
  • Publication number: 20140333513
    Abstract: A display unit includes data lines, first scan lines, second scan lines, light emission control lines and pixels, where each pixel is connected to a corresponding data line of the data lines, a corresponding first scan line of the first scan lines, a corresponding second scan line of the second scan lines and a corresponding light emission control line of the light emission control lines; a scan driver configured to transfer first scan signals to the first scan lines, and transfer second scan signals to the second scan lines, respectively; a data driver configured to transfer data signals to the data lines, respectively; and a light emission control driver configured to transfer light emission control signals to the light emission control lines, respectively, in which the scan driver transfers the second scan signals substantially simultaneously to at least two second scan lines among the second scan lines.
    Type: Application
    Filed: December 6, 2013
    Publication date: November 13, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: So-Young PARK, Dong-Hwan LEE, Seung-kyun HONG, In-Soo LEE
  • Publication number: 20140211478
    Abstract: A lighting device including: a light emitting module; a heat sink which is disposed on the light emitting module; a heat sink fan which is disposed over the heat sink; an upper case which covers the heat sink fan and the heat sink; and a lower case which is coupled to the upper case and fixes the light emitting module. A first air inlet is disposed in the lower case. A second air inlet is disposed in the upper case.
    Type: Application
    Filed: August 30, 2012
    Publication date: July 31, 2014
    Inventors: In Soo Park, Sun Ho Kim, Jae O Kwak, Seung Kyun Hong
  • Publication number: 20140146029
    Abstract: An organic light emitting display device includes an organic light emitting display panel, and a driver that drives the organic light emitting display panel. The driver applies a first power voltage and a second power voltage to the organic light emitting display panel, the first power voltage is lower than the second power voltage during a first period, and the first power voltage is higher than the second power voltage during a second period.
    Type: Application
    Filed: June 25, 2013
    Publication date: May 29, 2014
    Inventors: Seung Kyun HONG, Dong Hwan LEE, So Young PARK, In Soo LEE
  • Publication number: 20140125567
    Abstract: An apparatus for generating a gray scale voltage in an organic light emitting display device is disclosed. In one aspect, the apparatus includes a gamma reference voltage generator, a gray scale voltage output unit and a gray scale voltage selector. The gamma reference voltage generator outputs a gamma reference voltage. The gray scale voltage output unit outputs N first gray scale voltages, based on the gamma reference voltage. The gray scale voltage selector has a lookup table in which voltage values respectively corresponding M reference gray scales are previously set, and outputs second gray scale voltages by selecting M of the N first gray scale voltages.
    Type: Application
    Filed: March 14, 2013
    Publication date: May 8, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Seung-Kyun Hong, So-Young Park
  • Publication number: 20140098083
    Abstract: An organic light emitting display device includes a scan driving unit supplying a first scan signal and a second scan signal to each of a plurality of scan lines; a data driving unit supplying data signals to each of a plurality of data lines to be synchronized with the second scan signal; pixels positioned at intersections of the scan lines with the data lines, receiving bias power when the first scan signal is supplied, and receiving the data signals when the second scan signal is supplied.
    Type: Application
    Filed: June 3, 2013
    Publication date: April 10, 2014
    Inventors: Dong-Hwan LEE, Seung-Kyun HONG, So-Young PARK, In-Soo LEE
  • Publication number: 20140071113
    Abstract: The present invention relates to a driving method of an organic light emitting display which is capable of displaying images at uniform luminance. A driving method of an organic light emitting display of an embodiment according to the present invention includes supplying a data signal to a pixel and, after the data signal is supplied, driving the pixel in a constant-voltage system during a first time period and in a constant-current system during a second time period.
    Type: Application
    Filed: January 14, 2013
    Publication date: March 13, 2014
    Applicant: Samsung Display Co., LTD.
    Inventors: Seung-Kyun Hong, Jeong-Il Yoo
  • Publication number: 20140062988
    Abstract: An organic light emitting diode display includes at least one pixel circuit, a scanning drive unit connected to the pixel circuit through a scan line and generating a selection signal to be applied to the pixel circuit, and a data drive unit connected to the pixel circuit through a data line and applying a data voltage to the pixel circuit. The data drive unit includes a first line to which the data voltage is applied and a demultiplexer connected between the first line and a first end of the data line, the demultiplexer time-divisionally applying the data voltage applied to the first line to the data line according to a demultiplexing signal. In one horizontal cycle, at least a portion of a period in which the demultiplexing signal is applied and at least a portion of a period in which the selection signal is applied overlap each other.
    Type: Application
    Filed: June 14, 2013
    Publication date: March 6, 2014
    Inventors: Dong Hwan LEE, Seung Kyun HONG, So Young PARK
  • Publication number: 20130051039
    Abstract: A lighting device may be provided that includes: a light source including: a member which includes a first placement portion and a second placement portion; a light source module which is disposed in the first placement portion; and a first terminal which is disposed in the second placement portion and is electrically connected to the light source module; and a heat sink including: a first receiver in which the second placement portion of the member is disposed; a second receiver in which a circuitry is disposed; and a second terminal which is disposed corresponding to the first terminal of the light source.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 28, 2013
    Inventors: Byeong Guk Min, Jae O Kwak, In Soo Park, Seung Kyun Hong
  • Patent number: 7626564
    Abstract: An apparatus for driving an electroluminescence display panel having an icon area where predetermined icons are displayed according to input icon data and a dot-matrix area where variable images are displayed according to input dot-matrix data. A current that is discharged after the dot-matrix area is driven in each horizontal drive period is applied to at least one of driver power supply terminals of the icon area and the dot-matrix area.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: December 1, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jung-Kook Park, Il-Han Lee, Seung-Kyun Hong
  • Publication number: 20060103607
    Abstract: An apparatus for driving an electroluminescence display panel having an icon area where predetermined icons are displayed according to input icon data and a dot-matrix area where variable images are displayed according to input dot-matrix data. A current that is discharged after the dot-matrix area is driven in each horizontal drive period is applied to at least one of driver power supply terminals of the icon area and the dot-matrix area.
    Type: Application
    Filed: October 11, 2005
    Publication date: May 18, 2006
    Inventors: Jung-Kook Park, Il-Han Lee, Seung-Kyun Hong