Patent application number | Description | Published |
20090146935 | Liquid crystal display - The exemplary embodiment relates to a liquid crystal display device. The liquid crystal display panel according to the exemplary embodiment includes: a liquid crystal display panel on which a plurality of data lines cross a plurality of gate lines; a source drive IC that supplies data voltages to the data lines; a gate drive IC that supplies gate pulses to the gate lines; a system board equipped with a scaler that transmits data from the scaler with a first interface specification; an interface board that receives the data according to the first interface specification, and transmitting the data with a second interface specification; and a control board equipped with a timing controller receiving the data in the second interface specification and supplying the data to the source drive IC, and controlling the operating timing of the source drive IC and the gate drive IC; wherein a number of the data transmitting lines required in the second interface specification is less than a number of data transmitting line required in the first interface specification. | 06-11-2009 |
20090267878 | Liquid crystal display and method of driving the same - A liquid crystal display and a method of driving the same are disclosed. The liquid crystal display includes a timing signal multiplying circuit generating a first timing signal and a second timing signal whose frequency is higher than a frequency of the first timing signal, a frame counter detecting a multiplied frame period to be driven at the frequency of the second timing signal, a data processing circuit allowing a frequency of digital data output during the multiplied frame period to be higher than a frequency of the digital data output during a frame period except the multiplied frame period, a timing control signal generating circuit generating a polarity control signal for controlling polarities of the digital data, and a polarity control signal inverting circuit that increases a frequency of the polarity control signal during the multiplied frame period to generate an inverse polarity control signal. | 10-29-2009 |
20090273553 | Liquid crystal display and driving method thereof - A liquid crystal display and a method of driving the same are disclosed. The liquid crystal display includes a liquid crystal display panel including data lines and gate lines crossing each other and liquid crystal cells, a timing control signal generating unit, a data drive circuit supplying a data voltage to the data lines, and a gate drive circuit. The timing control signal generating unit generates a first gate timing control signal for controlling a scan direction of the liquid crystal display panel in a sequential direction and a second gate timing control signal for controlling the scan direction in a reverse sequential direction. The gate drive circuit supplies a gate pulse to the gate lines while a shift direction of the gate pulse changes in response to the first and second gate timing control signals. | 11-05-2009 |
20090273555 | Liquid crystal display and method of driving the same - A liquid crystal display and a method of driving the same are disclosed. The liquid crystal display includes a timing signal multiplying circuit multiplying a frequency of a timing signal, a timing control signal generating circuit generating a polarity control signal based on the multiplied timing signal, a polarity control signal inverting circuit that inverts the polarity control signal in response to an inverse periodic signal, that is inverted every constant time interval, to generate an inverse polarity control signal, and a data drive circuit that respectively converts digital video data and digital black data into a video data voltage and a black gray level voltage, inverts polarities of the video data voltage and the black gray level voltage in response to the inverse polarity control signal, and supplies the video data voltage and the black gray level voltage to data lines. | 11-05-2009 |
20090273557 | Liquid crystal display and method of driving the same - A liquid crystal display and a method of driving the same are disclosed. The liquid crystal display includes a data drive circuit that supplies a data voltage, whose a polarity is periodically inverted, to the data lines, a gate drive circuit, and a timing controller. The gate drive circuit sequentially supplies a first gate pulse synchronized with a first data voltage to gate lines, and sequentially supplies a second gate pulse synchronized with a second data voltage having a polarity opposite a polarity of the first data voltage, to the gate lines. The timing controller generates a pre-gate start pulse for controlling an output of the first gate pulse during a blank period, and then generates a real gate start pulse for controlling an output of the second gate pulse during an initial period of a frame period following the blank period. | 11-05-2009 |
20100321353 | Liquid crystal display - A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal layer between an upper substrate and a lower substrate, m×n liquid crystal cells arranged in a matrix format according to a crossing structure of m/2 data lines and 2n gate lines, and thin film transistors respectively connected to the m×n liquid crystal cells; a data drive circuit supplying a data voltage to the data lines in response to a polarity control signal; a gate drive circuit sequentially supplying a gate pulse to the gate lines; and a POL logic circuit controlling the polarity control signal so that a phase of the polarity control signal varies every frame period. | 12-23-2010 |
20110007257 | Liquid crystal display - A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal display panel including a pixel array in which data lines and gate lines cross each other, liquid crystal cells are arranged in a matrix format according to a crossing structure of the data lines and the gate lines, and thin film transistors (TFTs) are alternately connected to data lines adjacent to the TFTs in zigzag form, a plurality of source driver integrated circuits (ICs), each of which supplies a data voltage to the data lines, and a gate drive circuit that sequentially supplies a gate pulse to the gate lines. | 01-13-2011 |
20140125570 | LIQUID CRYSTAL DISPLAY - The exemplary embodiment relates to a liquid crystal display device. The liquid crystal display according to the exemplary embodiment includes: a liquid crystal display panel on which a plurality of data lines cross a plurality of gate lines, wherein each data line and each gate line is connected to a thin film transistor; a source drive IC supplying data voltages to the data lines; a gate drive IC supplying gate pulses to the gate lines; a system board equipped with a scaler that transmits data from the scaler through an interface that comprises 4-pair of data transmitting lines; and a control board equipped with a timing controller that receives the data through the interface and supplies the data to the source drive IC and controls the operating timing of the source drive IC and the gate drive IC. | 05-08-2014 |