Abstract: A driving circuit of a liquid crystal display device and a driving method of the same are discussed. A driving circuit of a liquid crystal display device includes a liquid crystal panel comprising pixel cells having only circuit pixels, respectively, aligned in a matrix type corresponding to full resolution, the liquid crystal panel disposed in a matrix type to have resolution that is lower than the full resolution in a predetermined ratio; a panel driving unit driving entire pixel cells provided in the liquid crystal panel to display images, the panel driving unit converting and outputting touch sensing signals transmitted from the pixel cells having the touch sensor circuits into digital signals; and a sensing system calculating touch coordinates from the converted touch sensing signals.

Abstract: Disclosed is a display device which facilitates to prevent an abnormal display during a driving mode conversion, an abnormal signal input, and a no-signal input, and a method for driving the same, wherein the display device comprises a video controller for detecting an abnormal signal input and no-signal input by monitoring video data and control signals inputted from the external; and generating video data and control signals according to the abnormal signal input and no-signal input so as to enable a normal end of a frame; a timing controller for arranging and outputting the video data, supplied from the video controller, for every frame unit; and generating and outputting control signals for controlling a gate driver and a data driver by the use of timing synchronous signals; and a display panel for displaying image by the use of input video data.

Abstract: A liquid crystal display (LCD) device and method of driving an LCD device are provided. The LCD device includes: a panel, including: a plurality of gate lines, and a plurality of data lines, an image-sticking removal apparatus configured to, when an interlaced input video is received from an external system: generate an FRC pattern to be added into the input video and a polarity pattern used to output the input video to form one group, and generate at least two or more the groups formed in parallel to the gate lines during one frame, and a data driver configured to: convert image data inputted from the image-sticking removal apparatus into data voltages, invert a polarity of each of the data voltages on the basis of the polarity pattern, and output the polarity-inverted data voltages to the respective data lines.

Abstract: Provided are a timing controller for converting RGB data to WRGB data, a driving method thereof, and an LCD device using the same. The timing controller according to an embodiment includes a reception unit to receive input RGB data from an external device; a converter to convert the input RGB data into input WRGB data composed of W, R, G and B data; an aligner to convert one of the W, R, G, and B data into 0 to generate conversion WRGB data, the conversion WRGB data having bits less than the total number of bits composing the W, R, G, and B data; a controller to transfer the conversion WRGB data to an external memory; and a re-aligner to convert the conversion WRGB data received from the external memory into digital WRGB data corresponding to the input WRGB data, and to output the digital WRGB data.

Abstract: Disclosed is an organic light emitting display device which includes: a liquid crystal display panel configured to include at least one common electrode bar and a plurality of divisional areas defined along a length direction of the at least one common electrode bar; a common voltage controller configured to divide a single frame into a plurality of intervals corresponding to the plurality of divisional areas and generate a common voltage control signal in each interval; and a common voltage compensator configured to generate a compensated common voltage on the basis of the common voltage control signal in each interval and apply the compensated common voltage to the at least one common electrode bar of the liquid crystal display panel.

Abstract: A liquid crystal display (LCD) device and a driving method can produce reduced direct current image sticking and flicker. An LCD panel for the LCD device has liquid crystal cells having a common same color in each horizontal line and has columns of liquid crystal cells having a repeating sequence of color, a timing controller for generating a polarity control signal such that the polarity control signal is varied at intervals of one frame period, a data driving circuit supplying data voltages to the data lines in response to the polarity control signal, and a gate driving circuit supplying scan pulses to the gate lines. The liquid crystal cells include first liquid crystal cell groups supplied with data voltages having polarities inverted from polarities the previous frame period, and second liquid crystal cell groups supplied with data voltages having polarities identical to the polarities supplied in the previous frame period.

Abstract: A liquid crystal display device includes a liquid crystal display panel including a plurality of data lines to which a data voltage is supplied, a plurality of gate lines to which a gate pulse is supplied, and a plurality of liquid crystal cells, a data drive circuit to invert a polarity of the data voltage in response to a polarity control signal and to output the data voltage to the data lines in response to a source output enable signal, a gate drive circuit to supply the gate pulse to the gate lines, and a POL/SOE logic circuit to invert the polarity control signal for every frame period except at Nth-multiple frame period (where N is a positive integer), wherein the POL/SOE logic circuit controls the polarity control signal at every Nth-multiple frame period such that the polarity of the data voltage is the same as the previous frame period and controls a pulse width of the source output enable signal at every Nth-multiple frame period to be longer than for the other frame periods.

Abstract: A disclosed display includes a display panel including a first group of data lines and second group of data lines, a plurality of gate lines crossing the first and a second groups of data lines, and a plurality of picture cells arranged in a matrix. The display also includes a first source PCB coupled to first data integrated circuits (ICs) to supply first data voltages to the first group of data lines and a second source PCB coupled to second data ICs to supply second data voltages to the second group of data lines. The display further includes a timing controller having a single output port with a plurality of output pins which are configured to output video data to both the first and second data ICs, and to output a timing control signal to control both the first and second data ICs.

Abstract: A liquid crystal display device having a plurality of pixel cells for displaying an image and sensing light incident on the pixel cells, each of the pixel cells includes a pixel circuit that displays an image based on a data voltage supplied from a data line in accordance with a gate signal from a gate line; and a touch sensor that senses light incident on the pixel cell, storing a light sensing signal based on the sensed light, and supplying the stored light sensing signal to a read-out integrated circuit via a read-out line in accordance with a scan signal from a scan line.

Abstract: A liquid crystal display (LCD) device having a simplified printed circuit board (PCB) is disclosed. The LCD device includes a first integrated circuit (IC) group operating in accordance with timing control signals to convert digital video data into data voltage and to supply the data voltage to a first data line group, and a second IC group receiving the timing control signals and the digital video data via a first source PCB and LOG wirings and operating in accordance with the timing control signals to convert the digital video data into the data voltage and to supply the data voltage to a second data line group Each IC of the first and second IC groups includes a polarity control signal (POL) generator for generating a polarity control signal to control a polarity of the data voltage, using a part of the timing control signals.

Abstract: A liquid crystal display and a method for driving the same, which improve image quality by increasing data line charge speed, are provided. In the display, a preparatory charging controller receives current image data to be provided to m current pixels of an nth horizontal line and a current vertical polarity-reversal control signal for vertically controlling polarities of the current image data, compares current image data with previous data provided to m corresponding previous pixels of an n?1th horizontal line, compares the current control signal with a previous one, and determines a logic value of a preparatory charging control signal based on the comparison. A data driver performs either a first operation for connecting and separating m data lines connected respectively to m current pixels, or a second operation for maintaining the m data lines separated, according to the logic value and provides the current data to the m pixels.

Abstract: Disclosed is a display device which facilitates to prevent an abnormal display during a driving mode conversion, an abnormal signal input, and a no-signal input, and a method for driving the same, wherein the display device comprises a video controller for detecting an abnormal signal input and no-signal input by monitoring video data and control signals inputted from the external; and generating video data and control signals according to the abnormal signal input and no-signal input so as to enable a normal end of a frame; a timing controller for arranging and outputting the video data, supplied from the video controller, for every frame unit; and generating and outputting control signals for controlling a gate driver and a data driver by the use of timing synchronous signals; and a display panel for displaying image by the use of input video data.

Abstract: A liquid crystal display includes a liquid crystal display panel including a plurality of data lines, a plurality of gate lines crossing the plurality of data lines, and a plurality of liquid crystal cells defined as a first and second liquid crystal cell groups, a data driving circuit to supply a data voltage to the data lines in response to a polarity control signal, a gate driving circuit to supply a scanning pulse that swings between a gate high voltage and a gate low voltage to the gate lines, a first logic circuit to generate the polarity control signal differently for each frame period to maintain a polarity of the data voltage charged in the first liquid crystal cell group, and to invert one time a polarity of the data voltage charged in the second liquid crystal cell group for two frame periods, and a second logic circuit to control the gate driving circuit to decrease the gate high voltage of the scanning pulse to a modulated voltage between the gate high voltage and the gate low voltage for a prede

Abstract: A liquid crystal display device includes a data transition part to compare a number of transitions between a previous data and a current data and to compare a number of transitions between the current data and a next data to determine whether or not the current data is to be inverted in accordance with a comparison result thereof, and to determine whether or not the current data is to be inverted in accordance with a high level number difference of the data, thereby generating a reverse signal when the current data is inverted, a memory to store a data from the data transition part, a data reverse transition part to reversely convert the data from the memory using the reverse signal, a lookup table to compare the current data and the previous frame data reversely converted by the data reverse transition part to select a modulated data and a display drive circuit to display the data from the lookup table on a liquid crystal display panel.

Abstract: A liquid crystal display device includes a liquid crystal display panel including a plurality of data lines, a plurality of gate lines, and a plurality of liquid crystal cells, the plurality of liquid crystal cells associated to a first and second liquid crystal cell groups, a data drive circuit to supply a data voltage to the data lines in response to a polarity control signal, a gate drive circuit to supply a scan pulse to the gate lines, and a polarity control circuit to generate different polarity control signals for each frame period and to control data voltage frequencies of the first and second liquid crystal cell groups to be different from each other.

Abstract: A liquid crystal display (LCD) device and a method for driving the LCD device are disclosed. The LCD device includes a frame rate adjusting circuit for controlling a frame rate to be maintained at a 1-fold rate in frame periods other than an Nth frame period (“N” is a multiple of 8 or more), while being increased to an “i”-fold-accelerated rate (“i” is a positive integer of 2 or more) in the Nth frame period, to output reference timing signals in the frame periods other than the Nth frame period, and to output accelerated timing signals in the Nth frame period, a timing controller for generating data and gate timing control signals, based on at least one of each reference timing signal and each accelerated timing signal, and a logic circuit for accelerating a frequency of a polarity control signal in the Nth frame period.

Abstract: A liquid crystal display for changing a supply sequence of a scanning pulse with which a plurality of gate lines are supplied to realize a one dot inversion, and a driving method thereof are disclosed. In the liquid crystal display, a liquid crystal display panel has a plurality of data lines and a plurality of gate lines, which are crossed each other, and pixels, which are defined by the lines. A gate driver supplies scanning pulses to the gate lines, and changes a supply sequence of the scanning pulses for each frame. A data driver converts digital video data into data voltages and periodically inverts a polarity of the data voltages to supply the data voltages in accordance with a supply sequence of the scanning pulses.

Abstract: A liquid crystal display device includes a liquid crystal display panel including a plurality of data lines to which a data voltage is supplied, a plurality of gate lines to which a gate pulse is supplied, and a plurality of liquid crystal cells, a data drive circuit to invert a polarity of the data voltage in response to a polarity control signal and to output the data voltage to the data lines in response to a source output enable signal, a gate drive circuit to supply the gate pulse to the gate lines, and a POL/SOE logic circuit to invert the polarity control signal for every frame period except at Nth-multiple frame period (where N is a positive integer), wherein the POL/SOE logic circuit controls the polarity control signal at every Nth-multiple frame period such that the polarity of the data voltage is the same as the previous frame period and controls a pulse width of the source output enable signal at every Nth-multiple frame period to be longer than for the other frame periods.

Abstract: A liquid crystal display device includes a data transition part to compare a number of transitions between a previous data and a current data to selectively invert the current data and to generate a reverse signal, a memory to store the data from the data transition part and to output the stored data as the previous frame data, a data reverse transition part to reversely convert the data from the memory using the reverse signal, a lookup table to compare the current data and the previous frame data reversely converted by the data reverse transition part to select a modulated data, and a display drive circuit to display the data from the lookup table on a liquid crystal display panel.

Abstract: A liquid crystal display device includes a data transition part to compare a number of transitions between a previous data and a current data and to compare a number of transitions between the current data and a next data to determine whether or not the current data is to be inverted in accordance with a comparison result thereof, and to determine whether or not the current data is to be inverted in accordance with a high level number difference of the data, thereby generating a reverse signal when the current data is inverted, a memory to store a data from the data transition part, a data reverse transition part to reversely convert the data from the memory using the reverse signal, a lookup table to compare the current data and the previous frame data reversely converted by the data reverse transition part to select a modulated data and a display drive circuit to display the data from the lookup table on a liquid crystal display panel.