Patents by Inventor Sun Koo

Sun Koo 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: 20170098420
    Abstract: A scan driver includes stages respectively located in channels, the stages outputting a sampling signal, corresponding to at least one clock signal, and a buffer unit including buffers respectively located between the stages and scan lines, the buffers each outputting a scan signal to an output terminal thereof, corresponding to the sampling signal supplied through an input terminal thereof where an ith (i is a natural number) buffer located in an ith channel is electrically coupled to at least one specific buffer located in another channel different from the ith channel.
    Type: Application
    Filed: April 19, 2016
    Publication date: April 6, 2017
    Inventors: Sun Koo KANG, Tae Gon KIM, Kyung Ha KIM, Jae Han LEE
  • Publication number: 20170004797
    Abstract: A data driver includes a first data voltage generator, a data converter and a second data voltage generator. The first data voltage generator is configured to generate a first data voltage based on first pixel data and configured to output the first data voltage to a first data line, the first pixel data being generated based on a first gamma curve. The data converter is configured to convert second pixel data to first converted pixel data, the second pixel data being generated based on the first gamma curve, the first converted pixel data being generated based on a second gamma curve different from the first gamma curve. The second data voltage generator is configured to generate a second data voltage based on the first converted pixel data and configured to output the second data voltage to a second data line.
    Type: Application
    Filed: May 3, 2016
    Publication date: January 5, 2017
    Inventors: YOUNG-IL BAN, SUN-KOO KANG, TAE-GON KIM
  • Patent number: 9530373
    Abstract: A display panel driving apparatus includes an image pattern analyzing part, a clock signal generating part and a data driving part. The image pattern analyzing part is configured to analyze an image pattern of an image data. The clock signal generating part is configured to generating a clock signal having a different pulse width according to the image pattern of an image data. The data driving part is configured to drive a data line of a display panel in response to the clock signal. Thus, power consumption and heating of the data driving part may be decreased.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: December 27, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Il Ban, Sun-Koo Kang, Seung-Hwan Moon, Sun-Kyu Son, Kyung-Ha Kim, Jae-Han Lee
  • Publication number: 20160171951
    Abstract: A display device includes a display panel, a gate driver, a data driver, and a driving control unit. The display panel includes pixels connected to a corresponding one of gate lines and a corresponding one of data lines. The gate driver drives the gate lines. The data driver includes first pads and second pads. The first pads are connected to each of first data lines of the data lines, and the second pads are connected to each of second data lines of the data lines. The driving control unit provides control signals and a data signal to the data driver, and to control the gate driver. The data driver includes a digital-to-analog converter and a switching circuit. The digital-to-analog converter converts the data signal into analog signals. The switching circuit sequentially outputs the analog signals to the first pads during a test mode.
    Type: Application
    Filed: August 5, 2015
    Publication date: June 16, 2016
    Inventors: JAE-HAN LEE, SUN-KOO KANG, SOOYEON KIM, YOUNG-IL BAN
  • Publication number: 20160133210
    Abstract: A liquid crystal display device, including: pixels; data lines and scan lines coupled to the pixels; and a driver configured to supply a scan signal to the scan lines, and supply a data voltage to the data lines. The data lines include first to third data lines, to which a data voltage having a positive polarity is supplied, and which are adjacent to each other, and fourth to sixth data lines, to which a data voltage having a negative polarity is supplied, and which are adjacent to each other.
    Type: Application
    Filed: September 9, 2015
    Publication date: May 12, 2016
    Inventors: Won-Tae KIM, Sun-Koo KANG, Jae-Han LEE, Sun-Kyu SON
  • Publication number: 20160019826
    Abstract: A display device includes a first interconnection line, a first data driver, a second interconnection line, an electrostatic discharge (ESD) circuit, and a display panel. The first connection line transmits a data driving signal. The first data driver includes the first interconnection line and output a data signal based on the data driving signal. The second interconnection line passes through the first data driver and transmits a gate driving signal. The ESD) circuit in the first data driver and discharges static electricity transmitted through the second interconnection line. The first gate driver outputs a gate signal based on the gate driving signal transmitted through the second interconnection line. The display panel receives the data signal and the gate signal.
    Type: Application
    Filed: January 29, 2015
    Publication date: January 21, 2016
    Inventors: Sujin KIM, Young-IL BAN, Sun-Koo KANG, Sunkyu SON
  • Patent number: 9030451
    Abstract: A display driving circuit includes a digital-to-analog converter configured to convert a digital image signal to an analog image signal, and a buffer circuit configured to receive the analog image signal and to output an output signal to be applied to a data line, where the buffer circuit includes an input stage configured to receive the analog image signal and to output a first signal, a first output stage configured to receive a first voltage and a second voltage and to output the output signal, a second output stage configured to receive a third voltage and a fourth voltage and to output the output signal, and a selection circuit configured to apply the first signal from the input stage to the first output stage or the second output stage in response to a mode signal.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: May 12, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Han Lee, Sunkyu Son, Sun-Koo Kang
  • Publication number: 20150122083
    Abstract: Provided are a method and a refining device for producing molten steel of outstanding cleanliness, and more particularly provides a method and device for refining inclusions by forming droplets from molten steel and dropping same into slag during pre-processing in a continuous casting process in a steel-making process.
    Type: Application
    Filed: May 13, 2013
    Publication date: May 7, 2015
    Applicant: POSCO
    Inventors: Ja Yong Choi, Seung Min Han, Sun Koo Kim, Hee Ho Lee, Sang Yuel Jung, Young Jong Seo
  • Publication number: 20150084944
    Abstract: A display device includes a display panel and a driving voltage generator. The driving voltage generator generates a first quarter power voltage and a second quarter power voltage. The first quarter power voltage has a level between a power voltage and a half power voltage. The second quarter power voltage has a level between the half power voltage and a ground voltage. A data driver alternately outputs the first quarter power voltage or the second quarter power voltage and a data voltage to the data line. A signal controller controls the driving voltage generator and the data driver. The signal controller includes a pattern recognition unit determining an image pattern of an image based on an input image signal. The signal controller controls the driving voltage generator to adjust the levels of the first quarter power voltage and the second quarter power voltage, based on the determined image pattern.
    Type: Application
    Filed: February 14, 2014
    Publication date: March 26, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: SUN-KOO KANG, WON TAE KIM, YOUNG-IL BAN, SUN KYU SON
  • Patent number: 8975207
    Abstract: Disclosed is an adsorptive ball for recovering precious metals and resources, a method for manufacturing the adsorptive bale, a flow through-continuous deionization (FT-CDI) module capable of recovering precious metals by using the adsorptive ball, and a flow through-continuous deionization (FT-CDI) apparatus having the flow through-continuous deionization (FT-CDI) installed thereat.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: March 10, 2015
    Assignees: The Industry & Academic Cooperation in Chungnam National University, Pusan National University Industry-University Cooperation Foundation
    Inventors: Teak Sung Hwang, Won Ho Jung, Noh-Seok Kwak, Sung-gyu Park, Jin Sun Koo, Hui-Man Park, Chi Won Hwang, Chang-Sik Ha
  • Publication number: 20140375703
    Abstract: A display panel driving apparatus includes an image pattern analyzing part, a clock signal generating part and a data driving part. The image pattern analyzing part is configured to analyze an image pattern of an image data. The clock signal generating part is configured to generating a clock signal having a different pulse width according to the image pattern of an image data. The data driving part is configured to drive a data line of a display panel in response to the clock signal. Thus, power consumption and heating of the data driving part may be decreased.
    Type: Application
    Filed: May 23, 2014
    Publication date: December 25, 2014
    Applicant: Samsung Display Co., LTD.
    Inventors: Young-Il BAN, Sun-Koo KANG, Seung-Hwan MOON, Sun-Kyu SON, Kyung-Ha KIM, Jae-Han LEE
  • Publication number: 20140107926
    Abstract: A distance relay apparatus, a distance relay processing system and a method for processing a distance relay are disclosed. In accordance with an embodiment of the present invention, the distance relay processing system, which controls a distance relay, includes a lightning managing apparatus, which generates comprehensive lightning information by using lightning detection information and in which the lightning detection information is provided by a lightning detector, and a distance relay apparatus, which generates fault occurrence information by determining a fault location of a power transmission line and generates fault analysis information by using the fault occurrence information and the comprehensive lightning information.
    Type: Application
    Filed: December 18, 2013
    Publication date: April 17, 2014
    Applicant: Korea Electric Power Corporation
    Inventors: Jung-Wook WOO, Joo-Sik KWAK, Dong-Jin KWEON, Kyung-Tak KIM, Kyo-Sun KOO
  • Publication number: 20140035897
    Abstract: A display driving circuit includes a digital-to-analog converter configured to convert a digital image signal to an analog image signal, and a buffer circuit configured to receive the analog image signal and to output an output signal to be applied to a data line, where the buffer circuit includes an input stage configured to receive the analog image signal and to output a first signal, a first output stage configured to receive a first voltage and a second voltage and to output the output signal, a second output stage configured to receive a third voltage and a fourth voltage and to output the output signal, and a selection circuit configured to apply the first signal from the input stage to the first output stage or the second output stage in response to a mode signal.
    Type: Application
    Filed: February 27, 2013
    Publication date: February 6, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Han LEE, SUNKYU SON, Sun-Koo KANG
  • Publication number: 20130277220
    Abstract: Disclosed is an adsorptive ball for recovering precious metals and resources, a method for manufacturing the adsorptive bale, a flow through-continuous deionization (FT-CDI) module capable of recovering precious metals by using the adsorptive ball, and a flow through-continuous deionization (FT-CDI) apparatus having the flow through-continuous deionization (FT-CDI) installed thereat.
    Type: Application
    Filed: October 15, 2012
    Publication date: October 24, 2013
    Inventors: Teak Sung Hwang, Won Ho Jung, Noh-Seok Kwak, Sung-gyu Park, Jin Sun Koo, Hui-Man Park
  • Publication number: 20130113770
    Abstract: A display device includes: a display area including a plurality of pixels, where each of the pixels includes m subpixels; and a plurality of data lines connected to the pixels, where 2n pixels of the pixels define an inversion reference group, where 2mn subpixels in the inversion reference group are applied with data voltages of a same polarity, and where each of n and m is a natural number.
    Type: Application
    Filed: June 13, 2012
    Publication date: May 9, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun-Koo KANG, Young-Il BAN, Sun Kyu SON
  • Publication number: 20110077866
    Abstract: A distance relay apparatus, a distance relay processing system and a method for processing a distance relay are disclosed. In accordance with an embodiment of the present invention, the distance relay processing system, which controls a distance relay, includes a lightning managing apparatus, which generates comprehensive lightning information by using lightning detection information and in which the lightning detection information is provided by a lightning detector, and a distance relay apparatus, which generates fault occurrence information by determining a fault location of a power transmission line and generates fault analysis information by using the fault occurrence information and the comprehensive lightning information.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 31, 2011
    Applicant: KOREA ELECTRIC POWER CORPORATION
    Inventors: Jung-Wook Woo, Joo-Sik Kwak, Dong-Jin Kweon, Kyung-Tak Kim, Kyo-Sun Koo
  • Publication number: 20080026327
    Abstract: The method for forming a fine pattern of a semiconductor device includes depositing a photoresist film over a semiconductor substrate having an underlying layer, performing a first exposure process using a first exposure mask to form a first photoresist pattern, the first exposure mask defining a first and a second exposure patterns, the first exposure pattern finer than the second exposure pattern, depositing a photoresist film over an entire surface of the resultant including the first photoresist pattern, performing a second exposure process using a second exposure mask to form a second photoresist pattern, the second exposure mask defining a third and a fourth exposure patterns, the third exposure pattern finer than the fourth exposure pattern and disposed between the first exposure patterns, the fourth exposure pattern overlapped with a portion of the second exposure pattern, and patterning the underlying layer using the first and the second photoresist patterns.
    Type: Application
    Filed: December 29, 2006
    Publication date: January 31, 2008
    Applicant: Hynix Semiconductor Inc.
    Inventor: Sun Koo