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Lee, Kyungbuk

Donghak Lee, Kyungbuk KR

Patent application numberDescriptionPublished
20100231564LIQUID CRYSTAL DISPLAY AND METHOD OF DRIVING THE SAME - A liquid crystal display and a method of driving the same are provided. The liquid crystal display includes a liquid crystal display panel including data lines, gate lines crossing the data lines, and liquid crystal cells and having a quad type pixel structure in which red, green, blue, and white subpixels constitute one pixel, a logic circuit sequentially outputting polarity control signals, a data drive circuit that inverts a polarity of a data voltage in response to the polarity control signals to supply the data voltage with the inverted polarity to the data lines, and a gate drive circuit sequentially supplying gate pulses to the gate lines. A logic level of each of the polarity control signals is inverted every three horizontal periods, and phases of the polarity control signals are different from one another.09-16-2010
20110001749LIQUID CRYSTAL DISPLAY - A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal display panel including data lines and gate lines crossing one another and a pixel array including liquid crystal cells arranged in a matrix format according to a crossing structure of the data lines and the gate lines, a source drive circuit supplying a data voltage to the data lines through a plurality of output channels, a gate drive circuit sequentially supplying a gate pulse to the gate lines. The liquid crystal display panel includes link lines that respectively connect the data lines to the output channels of the source drive circuit. The source drive circuit includes a plurality of output channel resistors connected between the output channels and the link lines. Each of the output channel resistors includes a variable resistance circuit.01-06-2011

Hoon-Keun Lee, Kyungbuk KR

Patent application numberDescriptionPublished
20100054740METHOD AND NETWORK ARCHITECTURE FOR UPGRADING LEGACY PASSIVE OPTICAL NETWORK TO WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK BASED NEXT-GENERATION PASSIVE OPTICAL NETWORK - The present invention discloses a network architecture for upgrading a legacy time division multiplexing-passive optical network (TDM-PON) to a wavelength division multiplexing-passive optical network (WDM-PON) based next-generation passive optical network (next-generation PON), wherein the legacy TDM-PON comprises: a central office (CO) having a first optical line termination (OLT); a remote node (RN) having a splitter; a single mode fiber (SMF) connecting the first OLT and the splitter; and a first group of one or more optical network terminations (ONTs) being connected to the splitter by a first group of one or more distribution fibers, and wherein the network architecture further comprises: in case that the next-generation PON is a WDM-PON, a first apparatus for combining and splitting wavelength bands being positioned between the SMF and the first OLT, in order to add a second OLT to be used for the WDM-PON within the CO or within another CO which is located in a position different from the CO, while sharing the SMF; a second apparatus for combining and splitting wavelength bands being positioned at a front terminal of the splitter; and an arrayed waveguide grating (AWG) being connected to the second apparatus for combining and splitting wavelength bands within the RN, and being connected to a second group of one or more ONTs by a second group of one or more distribution fibers within the RN or within another RN which is located in a position different from the RN.03-04-2010

Hyunjae Lee, Kyungbuk KR

Patent application numberDescriptionPublished
20110063269FLAT PANEL DISPLAY AND METHOD FOR DRIVING THE FLAT PANEL DISPLAY - A flat panel display including a display unit, the display unit displaying a first image, an input unit, the input unit being positioned adjacent to the display unit when the display unit is folded toward the input unit, at least one sensor, the sensor detecting luminance information of a second image displayed on the display unit when the display unit is folded toward the input unit, and an optical correction unit, the optical correction unit receiving the luminance information from the sensor and correcting a luminance of the display unit using the luminance information.03-17-2011

Jongbyuck Lee, Kyungbuk KR

Patent application numberDescriptionPublished
20110013122DISPLAY DEVICE, POLARIZATION MEMBER AND MANUFACTURING METHOD THEREOF - Provided is a display panel including a polarization member having both-sided adhesiveness to attach a display surface of a first panel to a display surface of a second panel to each other.01-20-2011

Jonghyuck Lee, Kyungbuk KR

Patent application numberDescriptionPublished
20110036612DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - Provided is a display panel comprising a first panel comprising a first lower substrate and a first upper substrate; a first alignment key formed in the first lower substrate; a second alignment key formed in the first upper substrate, the second alignment key is disposed in a position corresponding to the first alignment key; a second panel attached to the first panel; and a third alignment key formed in the second panel, the third alignment key is disposed in a position corresponding to the first and the second alignment keys and formed such that the first and the second alignment keys are identified.02-17-2011

Kyuman Lee, Kyungbuk KR

Patent application numberDescriptionPublished
20100001944Apparatus and method for driving light source of back light unit - The exemplary embodiment suggests an apparatus and a method for driving a light source of a backlight unit. The apparatus for driving the light source of the backlight unit comprises a plurality of LED columns; a power output terminal and feedback terminals connected to the LED columns; and an LED driver sequentially driving the LEDs according to sequentially delayed PWM signals. The LED driver decides an operable number of LED channel based on the signals input through the feedback terminals, and sequentially delays the PWM signals with the phase difference controlled by the number of LED channel.01-07-2010

Minkyung Lee, Kyungbuk KR

Patent application numberDescriptionPublished
20090315840Liquid crystal display - A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal display panel including a pixel array and touch sensors, a transparent conductive layer on one substrate of the liquid crystal display panel transmitting display light, a polarizing plate on the transparent conductive layer, a driving voltage supply circuit, and a signal transmitting unit electrically connecting the transparent conductive layer to the driving voltage supply circuit. A portion of the transparent conductive layer is connected to a ground level voltage source. The driving voltage supply circuit generates a driving voltage required to perform light sensing operations of the touch sensors during a touch period based on changes in an amount of surface charge of the transparent conductive layer depending on whether or not the polarizing plate is touched.12-24-2009

Min Kyung Lee, Kyungbuk KR

Patent application numberDescriptionPublished
20090267917Liquid crystal display and method of driving the same - A liquid crystal display includes a transparent conductive layer on an first substrate of a liquid crystal display panel transmitting display light, an insulating layer on the transparent conductive layer, a sensing circuit to generate a touch or non-touch sensing signal based on changes in the amount of surface charge of the transparent conductive layer depending on whether or not the insulating layer is touched, and a driving voltage supply circuit to generate a driving voltage of a high potential for a light sensing operation of a touch sensor circuit only when the touch or non-touch sensing signal indicates that the insulating layer is touched.10-29-2009

Sangkyu Lee, Kyungbuk KR

Patent application numberDescriptionPublished
20110260584PIEZOELECTRIC POLYMER FIBERS - Piezoelectric fibers include a polypeptide wherein molecules of the polypeptide have electric dipole moments that are aligned such that the piezoelectric fiber provides a piezoelectric effect at an operating temperature. A piezoelectric component provides a plurality of piezoelectric fibers, each comprising an organic polymer. A method of producing piezoelectric fibers includes electrospinning a polymer solution to form a fiber and winding the fiber onto a rotating target in which the rotating target is electrically grounded. An acoustic sensor includes a plurality acoustic transducers, wherein the plurality of acoustic transducers are structured and arranged to detect a corresponding plurality of vector components of an acoustic signal, and at least one of the plurality of acoustic transducers comprises a piezoelectric fiber.10-27-2011

Sehee Lee, Kyungbuk KR

Patent application numberDescriptionPublished
20110073884ORGANIC LIGHT EMITTING DIODE DISPLAY - An organic light emitting diode display is disclosed. The organic light emitting diode display includes a plurality of subpixels that emit light of at least three colors, the plurality of subpixels each including a first electrode, an organic light emitting layer, and a second electrode. Each of the organic light emitting layers of at least two of the plurality of subpixels includes at least two electron transport layers. The organic light emitting layer of at least one of the plurality of subpixels includes at least one electron transport layer.03-31-2011

Taehoon Lee, Kyungbuk KR

Patent application numberDescriptionPublished
20080318262Protein Cleavage at Aspartic Acid Using Chemical Reagents - The present invention relates to the methods of identifying and quantifying polypeptides in a given sample by mass spectrometric analysis. More specifically, the invention provides the methods for sample preparation for proteomic analysis: the methods for the fragmentation of proteins into peptides with the specific cleavage rule (cleavage at amino-terminal or carboxyl-terminal of aspartic acid), which are suitable for the analysis by mass spectrometry apparatus.12-25-2008