Patents by Inventor Nam-suk Bang

Nam-suk Bang 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: 9275591
    Abstract: A liquid crystal display includes a gate driver including stages, and a clock generator which receives a clock generation control signal, generates a clock signal and a clock bar signal based on one or more of the clock generation control signal, a gate-on voltage and a gate-off voltage, and outputs the clock signal and the clock bar signal to the gate driver. The clock generator includes an overcurrent protector unit which intercepts at least one of the clock signal and the clock bar signal when a voltage level of at least one of the gate-on voltage and the gate-off voltage is greater than a reference level.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: March 1, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Nam-Suk Bang, Hyun-Sang Cho, Joo-Hwan Park, Jae-Seob Chung
  • Patent number: 8884995
    Abstract: A system for compensating for gamma data is provided comprising a display panel including at least one feedback line connected to at least one pixel, a gray voltage generator generating a reference gray voltage based on first gamma data, a data driver generating a data voltage based on the reference gray voltage and applying the generated data voltage to a data line, a multiplexer receiving at least one feedback voltage from the at least one feedback line and selecting a feedback voltage from the received at least one feedback voltage and outputting the selected feedback voltage, an A/D converter converting the selected feedback voltage into feedback data, and a signal controller storing the feedback data as feedback gamma data for the entire grays and compensating for the first gamma data based on the feedback gamma data.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: November 11, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Sun Kwak, Nam-Suk Bang, Ji-Won Kim, Won-Hee Lee
  • Publication number: 20140160110
    Abstract: A liquid crystal display includes a gate driver including stages, and a clock generator which receives a clock generation control signal, generates a clock signal and a clock bar signal based on one or more of the clock generation control signal, a gate-on voltage and a gate-off voltage, and outputs the clock signal and the clock bar signal to the gate driver. The clock generator includes an overcurrent protector unit which intercepts at least one of the clock signal and the clock bar signal when a voltage level of at least one of the gate-on voltage and the gate-off voltage is greater than a reference level.
    Type: Application
    Filed: February 18, 2014
    Publication date: June 12, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Nam-Suk BANG, Hyun-Sang CHO, Joo-Hwan PARK, Jae-Seob CHUNG
  • Patent number: 8692757
    Abstract: A liquid crystal display includes a gate driver including stages, and a clock generator which receives a clock generation control signal, generates a clock signal and a clock bar signal based on one or more of the clock generation control signal, a gate-on voltage and a gate-off voltage, and outputs the clock signal and the clock bar signal to the gate driver. The clock generator includes an overcurrent protector unit which intercepts at least one of the clock signal and the clock bar signal when a voltage level of at least one of the gate-on voltage and the gate-off voltage is greater than a reference level.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: April 8, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nam-Suk Bang, Hyun-Sang Cho, Joo-Hwan Park, Jae-Seob Chung
  • Publication number: 20120320098
    Abstract: A system for compensating for gamma data is provided comprising a display panel including at least one feedback line connected to at least one pixel, a gray voltage generator generating a reference gray voltage based on first gamma data, a data driver generating a data voltage based on the reference gray voltage and applying the generated data voltage to a data line, a multiplexer receiving at least one feedback voltage from the at least one feedback line and selecting a feedback voltage from the received at least one feedback voltage and outputting the selected feedback voltage, an A/D converter converting the selected feedback voltage into feedback data, and a signal controller storing the feedback data as feedback gamma data for the entire grays and compensating for the first gamma data based on the feedback gamma data.
    Type: Application
    Filed: November 4, 2011
    Publication date: December 20, 2012
    Inventors: YOUNG-SUN KWAK, Nam-Suk Bang, Ji-Won Kim, Won-Hee Lee
  • Patent number: 8022910
    Abstract: A liquid crystal display includes a signal control unit which supplies an image signal; a voltage supply unit which outputs a first reference voltage when the image signal is not at a highest grayscale level and outputs a second reference voltage having a voltage level higher than that of the first reference voltage when the image signal is at the highest grayscale voltage level; a grayscale voltage generating unit which receives the first reference voltage or the second reference voltage and generates a plurality of positive- and negative-polarity grayscale voltages whose voltage levels sequentially decrease; and a data driving unit which receives the image signal, the plurality of positive- and negative-polarity grayscale voltages and applies an image data voltage corresponding to the image signal to a pixel.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: September 20, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-kyung Kim, Nam-suk Bang, Hyun-suck Jeong
  • Publication number: 20100220079
    Abstract: A liquid crystal display includes a gate driver including stages, and a clock generator which receives a clock generation control signal, generates a clock signal and a clock bar signal based on one or more of the clock generation control signal, a gate-on voltage and a gate-off voltage, and outputs the clock signal and the clock bar signal to the gate driver. The clock generator includes an overcurrent protector unit which intercepts at least one of the clock signal and the clock bar signal when a voltage level of at least one of the gate-on voltage and the gate-off voltage is greater than a reference level.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 2, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nam-Suk BANG, Hyun-Sang CHO, Joo-Hwan PARK, Jae-Seob CHUNG
  • Publication number: 20080170020
    Abstract: A liquid crystal display includes a signal control unit which supplies an image signal; a voltage supply unit which outputs a first reference voltage when the image signal is not at a highest grayscale level and outputs a second reference voltage having a voltage level higher than that of the first reference voltage when the image signal is at the highest grayscale voltage level; a grayscale voltage generating unit which receives the first reference voltage or the second reference voltage and generates a plurality of positive- and negative-polarity grayscale voltages whose voltage levels sequentially decrease; and a data driving unit which receives the image signal, the plurality of positive- and negative-polarity grayscale voltages and applies an image data voltage corresponding to the image signal to a pixel.
    Type: Application
    Filed: December 19, 2007
    Publication date: July 17, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun-kyung KIM, Nam-suk BANG, Hyun-suck JEONG