Patents by Inventor Songjae Lee

Songjae 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).

  • Patent number: 9331873
    Abstract: Disclosed is an apparatus and a method for controlling data interface. The apparatus for controlling data interface comprises: a transmitting terminal outputting signal including a CDR (Clock Data Recovery) training signal, an align training signal and display data sequentially; a receiving terminal inputting the signals from the transmitting terminal; and a Rx monitoring device detecting an abnormal status of the receiving terminal by monitoring an input timing signal and an operating status of the receiving terminal, and resetting the receiving terminal when the receiving terminal operates abnormally.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: May 3, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Songjae Lee, Yangseok Jeong, Kukhui Chang
  • Patent number: 9275590
    Abstract: A liquid crystal display and a driving method thereof are provided. The liquid crystal display includes a liquid crystal display panel, a register for storing pixel information of a problem pattern and polarity pattern information, a block pattern recognition unit for comparing input data with the problem pattern to count the number of problem patterns contained in the input data and comparing the count value with a first threshold value, a line pattern recognition unit for determining the line containing the problem pattern as a problem line, a frame pattern recognition unit for comparing the number of problem lines with a second threshold value, and determining the frame containing the input data as a problem frame, a polarity control signal generating unit for generating vertical and horizontal polarity control signals, and source drive integrated circuits (ICs) for controlling the vertical and horizontal polarities of data voltages supplied to the data lines.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: March 1, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Youngho Kim, Suhyuk Jang, Songjae Lee
  • Patent number: 8970466
    Abstract: A timing controller, a display device using the timing controller, and a method for driving the timing controller are discussed. The timing controller includes a frequency change sensing unit, that measures a length of an (n?1)th frame period and a length of an nth frame period, where n is a natural number equal to or greater than 2, and outputs timing signals of a low logic level when a length difference between the (n?1)th frame period and the nth frame period is greater than a predetermined first threshold value, a scan timing control signal output unit for outputting a scan timing control signal based on the timing signals, and a data timing control signal output unit controlling a data driving circuit based on the timing signals.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: March 3, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Songjae Lee, Youngho Kim
  • Publication number: 20140173360
    Abstract: Disclosed is an apparatus and a method for controlling data interface. The apparatus for controlling data interface comprises: a transmitting terminal outputting signal including a CDR (Clock Data Recovery) training signal, an align training signal and display data sequentially; a receiving terminal inputting the signals from the transmitting terminal; and a Rx monitoring device detecting an abnormal status of the receiving terminal by monitoring an input timing signal and an operating status of the receiving terminal, and resetting the receiving terminal when the receiving terminal operates abnormally.
    Type: Application
    Filed: November 15, 2013
    Publication date: June 19, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Songjae LEE, Yangseok JEONG, Kukhui CHANG
  • Patent number: 8456403
    Abstract: A liquid crystal display and a driving method thereof are provided. The liquid crystal display includes: a liquid crystal display panel including a plurality of data lines, a plurality of gate lines crossing the data lines, and pixels arranged in m×n matrix; a register for defining polarity pattern information, frame rotation information, and line rotation information to determine a polarity of a data voltage charged in N lines, wherein N is a positive integer less than n; a timing controller for generating a polarity control signal to control polarities of data voltages charged in n lines of the liquid crystal display panel based on the information read from the register; and source drive ICs for converting the polarities of the data voltages supplied to the data lines in response to the polarity control signal.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: June 4, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Suhyuk Jang, Yangseok Jeong, Songjae Lee
  • Publication number: 20120146980
    Abstract: A timing controller, a display device using the timing controller, and a method for driving the timing controller are discussed. The timing controller includes a frequency change sensing unit, that measures a length of an (n?1)th frame period and a length of an nth frame period, where n is a natural number equal to or greater than 2, and outputs timing signals of a low logic level when a length difference between the (n?1)th frame period and the nth frame period is greater than a predetermined first threshold value, a scan timing control signal output unit for outputting a scan timing control signal based on the timing signals, and a data timing control signal output unit controlling a data driving circuit based on the timing signals.
    Type: Application
    Filed: September 22, 2011
    Publication date: June 14, 2012
    Inventors: Songjae Lee, Youngho Kim
  • Publication number: 20100164940
    Abstract: A liquid crystal display and a driving method thereof are provided. The liquid crystal display includes: a liquid crystal display panel including a plurality of data lines, a plurality of gate lines crossing the data lines, and pixels arranged in m×n matrix; a register for defining polarity pattern information, frame rotation information, and line rotation information to determine a polarity of a data voltage charged in N lines, wherein N is a positive integer less than n; a timing controller for generating a polarity control signal to control polarities of data voltages charged in n lines of the liquid crystal display panel based on the information read from the register; and source drive ICs for converting the polarities of the data voltages supplied to the data lines in response to the polarity control signal.
    Type: Application
    Filed: September 10, 2009
    Publication date: July 1, 2010
    Inventors: Suhyuk JANG, Yangseok Jeong, Songjae Lee
  • Publication number: 20100164985
    Abstract: A liquid crystal display and a driving method thereof are provided. The liquid crystal display includes a liquid crystal display panel, a register for storing pixel information of a problem pattern and polarity pattern information, a block pattern recognition unit for comparing input data with the problem pattern to count the number of problem patterns contained in the input data and comparing the count value with a first threshold value, a line pattern recognition unit for determining the line containing the problem pattern as a problem line, a frame pattern recognition unit for comparing the number of problem lines with a second threshold value, and determining the frame containing the input data as a problem frame, a polarity control signal generating unit for generating vertical and horizontal polarity control signals, and source drive integrated circuits (ICs) for controlling the vertical and horizontal polarities of data voltages supplied to the data lines.
    Type: Application
    Filed: October 14, 2009
    Publication date: July 1, 2010
    Inventors: Youngho Kim, Suhyuk Jang, Songjae Lee
  • Patent number: 7418978
    Abstract: In a first aspect, a valve assembly is provided that includes a valve assembly output adapted to output at least one of DI water and a chemical. A first valve of the valve assembly includes (1) a first input adapted to receive the chemical; (2) a first output adapted to circulate the chemical to a chemical return; and (3) a second output adapted to output the chemical to the valve assembly output. The valve assembly also includes a second valve positioned downstream from the first valve. The second valve includes (1) an input adapted to receive deionized (DI) water; and (2) an output adapted to output DI water to the valve assembly output. A check valve is coupled between the second output of the first valve and the output of the second valve, and the first valve, second valve and check valve are included in a single manifold.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: September 2, 2008
    Assignee: Applied Materials, Inc.
    Inventors: Sandy Shih-Hsun Chao, Songjae Lee, Ho Seon Shin
  • Patent number: 7297047
    Abstract: A method and apparatus for the delivery of slurry solution comprising an ultrasonic flow meter positioned between a fluid preparation manifold and a slurry delivery arm, and a shutoff valve positioned between a proportional valve and the slurry delivery arm. Also, a method and apparatus for the delivery of slurry solution including an ultrasonic flow meter positioned to receive fluid from a fluid preparation manifold, a proportional valve and stepper motor in communication with the flow meter, and a reverse flow restrictor in communication with the proportional valve and a slurry delivery arm.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: November 20, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Songjae Lee, Ho Seon Shin, Donald J. K. Olgado
  • Publication number: 20070128982
    Abstract: A method and apparatus for the delivery of slurry solution comprising an ultrasonic flow meter positioned between a fluid preparation manifold and a slurry delivery arm, and a shutoff valve positioned between a proportional valve and the slurry delivery arm. Also, a method and apparatus for the delivery of slurry solution including an ultrasonic flow meter positioned to receive fluid from a fluid preparation manifold, a proportional valve and stepper motor in communication with the flow meter, and a reverse flow restrictor in communication with the proportional valve and a slurry delivery arm.
    Type: Application
    Filed: December 1, 2005
    Publication date: June 7, 2007
    Inventors: Songjae Lee, Ho Shin, Donald Olgado
  • Publication number: 20060264160
    Abstract: In a first aspect, a valve assembly is provided that includes a valve assembly output adapted to output at least one of DI water and a chemical. A first valve of the valve assembly includes (1) a first input adapted to receive the chemical; (2) a first output adapted to circulate the chemical to a chemical return; and (3) a second output adapted to output the chemical to the valve assembly output. The valve assembly also includes a second valve positioned downstream from the first valve. The second valve includes (1) an input adapted to receive deionized (DI) water; and (2) an output adapted to output DI water to the valve assembly output. A check valve is coupled between the second output of the first valve and the output of the second valve, and the first valve, second valve and check valve are included in a single manifold.
    Type: Application
    Filed: July 31, 2006
    Publication date: November 23, 2006
    Inventors: Sandy Chao, Songjae Lee, Ho Shin
  • Publication number: 20060207671
    Abstract: In a first aspect, a valve assembly is provided that includes a valve assembly output adapted to output at least one of DI water and a chemical. A first valve of the valve assembly includes (1) a first input adapted to receive the chemical; (2) a first output adapted to circulate the chemical to a chemical return; and (3) a second output adapted to output the chemical to the valve assembly output. The valve assembly also includes a second valve positioned downstream from the first valve. The second valve includes (1) an input adapted to receive deionized (DI) water; and (2) an output adapted to output DI water to the valve assembly output. A check valve is coupled between the second output of the first valve and the output of the second valve, and the first valve, second valve and check valve are included in a single manifold.
    Type: Application
    Filed: May 23, 2006
    Publication date: September 21, 2006
    Inventors: Sandy Chao, Songjae Lee, Ho Shin
  • Publication number: 20050284528
    Abstract: In a first aspect, a valve assembly is provided that includes a valve assembly output adapted to output at least one of DI water and a chemical. A first valve of the valve assembly includes (1) a first input adapted to receive the chemical; (2) a first output adapted to circulate the chemical to a chemical return; and (3) a second output adapted to output the chemical to the valve assembly output. The valve assembly also includes a second valve positioned downstream from the first valve. The second valve includes (1) an input adapted to receive deionized (DI) water; and (2) an output adapted to output DI water to the valve assembly output. A check valve is coupled between the second output of the first valve and the output of the second valve, and the first valve, second valve and check valve are included in a single manifold.
    Type: Application
    Filed: January 28, 2005
    Publication date: December 29, 2005
    Inventors: Sandy Chao, Songjae Lee, Ho Shin