Abstract: A display device includes a display panel, a gate driving circuit, a data driving circuit, and a storage driving circuit. The storage driving circuit includes a plurality of stages to apply a plurality of storage voltages, which are inverted in every frame, to the storage lines, respectively. A kth stage of the stages includes a counter charging part, a boosting part and a holding part. The counter charging part applies a first driving voltage to a kth storage line based on a kth gate signal. The boosting part applies a second driving voltage to the kth storage line based on a (k+2)th gate signal. The holding part applies a storage voltage to the kth storage line based on a (k+1)th gate signal during one frame. The level of the storage voltage corresponds to the second driving voltage.

Abstract: In a display device provided with a frame memory developing an auxiliary line image as a display image and a means of reading out and displaying the image data developed in the aforementioned frame memory, the aforementioned auxiliary line image is constituted by background pixels and dashed auxiliary lines constituted by pixels which have luminance or color that is different from that of the background color and pixels with have nearly identical luminance or color to that of the background color; and by carrying out the display of the dashes so as to move, at fixed time intervals or arbitrary time intervals, the dash display areas of the aforementioned auxiliary lines on the trajectory of the figure described by the aforementioned auxiliary lines, the system is devised to display the auxiliary lines while controlling that an identical pixel of the display device is not displayed continually.

Abstract: A liquid crystal display and a driving method thereof are provided. The liquid crystal display includes a plurality of pixels, a plurality of scan lines, and a plurality of data lines. Each pixel includes a plurality of sub-pixels. Each sub-pixel is coupled to the data line, and includes a switch, a storage capacitor, and a sub-pixel electrode. The switch is coupled to a scan line to receive a scan signal. The switch is turned on by the scan signal to receive a data signal transmitted from the data line. The storage capacitors of the sub-pixels of each pixel are coupled to the scan lines, or the storage capacitor of one of the sub-pixels of each pixel is coupled to a common electrode and the storage capacitors of the other sub-pixels are coupled to the scan lines. The switch and the storage capacitor of each sub-pixel are coupled to different scan lines.

Abstract: A driving circuit for an LCD system is provided. The LCD system includes a common electrode, a display electrode, and a capacitor. An AC voltage output terminal of the driving circuit is coupled to the common electrode via the capacitor. The display electrode and a charging/discharging unit in the driving circuit are respectively coupled to the AC voltage output terminal through a switch. According to requirements to change the electrical polarity of the common electrode, a control unit in the driving circuit turns on/off the two switches respectively so as to charge or discharge the AC voltage output terminal.

Abstract: A polarity inversion driving method and apparatus for a liquid crystal display panel, and a liquid crystal display, is provided in order to solve the technical problem in the prior art that the interference strips are concentrated in one line, without increasing the power consumption of the liquid crystal display panel. The method comprises the steps of: generating N polarity control signals of different timings, wherein N is an integer and N?2, and each polarity control signal is used to control a polarity voltage for sub-pixels in one or more columns of a liquid crystal display panel; and outputting the N polarity control signals to polarity control lines in the liquid crystal display panel, wherein each polarity control line corresponds to one polarity control signal.

Abstract: A liquid crystal driving circuit is disclosed which carries out time-division driving with respect to each pixel constituting a liquid crystal display panel by causing a bright and dark frame period and a positive and negative frame period to be different from each other, the bright and dark frame period being a period of brightness and darkness of luminance at which to drive the each pixel, the positive and negative frame period being a period of polarities of a voltage to be applied to liquid crystal of the each pixel.

Abstract: Disclosed is a liquid crystal display device and a method of driving the same, which prevent image-quality defects due to charge variation. In the method of driving the liquid crystal display device including a pixel consisting of first to third sub-pixels which share one data line and are connected to first to third gate lines, one sub-pixel is turned off on a per frame basis, another sub-pixel is charged with a polarity inverted data voltage for a first charge time including a charge time of the turned-off sub-pixel, and the other sub-pixel is charged with a data voltage having the same polarity as a previous data voltage for a second charge time less than the first charge time. The turned-off sub-pixel, the sub-pixel charged with the polarity inverted data voltage, and the sub-pixel charged with the polarity maintained data voltage alternately vary on a per frame basis.

Abstract: The present invention relates to a liquid crystal display and more particularly to a driving method and driving device for a liquid crystal panel, and to a liquid crystal display device comprising a liquid crystal panel. The driving method comprises: receiving an original input signal; judging whether or not a current time is within a signal conversion phase; and when the judgment result indicates that the current time is within the signal conversion phase, generating a target driving signal based on the original input signal, and outputting the target driving signal to a data line of a liquid crystal panel or generating an original driving signal based on the original input signal and outputting the original driving signal to the data line. The polarity of the target driving signal is opposite to that of the original driving signal. An amplitude of the target driving signal corresponding to a first frame within the signal conversion phase is less than an amplitude of the original driving signal.

Abstract: The objective of the present invention is to suppress the occurrence of flickering and to reduce the power consumption of a display device. A liquid crystal display device that is an embodiment of the present invention splits one frame into a plurality of fields and performs interlaced driving, and has a timing controller that, with a predetermined number of selected pixels in the direction of a scanning line and a signal line as units, is for reversing the polarity of a data signal applied to selected pixels in a field in a manner so that there is the same number of positive and negative polarities of the data signal applied to the selected pixels disposed along a signal line, and is for reversing the polarity in a manner such that the polarity of the data signal applied to the selected pixels changes for each frame.

Abstract: A method for driving a display device is provided herein. The display device includes a plurality of scan lines. The method comprises following steps: dividing the scan lines into a plurality of groups, each of which comprises at least two scan lines, i.e. a first and a second scan line; during a first frame period, sequentially enabling the first and second scan line of each group in accordance with a first driving sequence; and during a second frame period, sequentially enabling the first and second scan line of each group in accordance with a second driving sequence, wherein the first driving sequence is different from the second driving sequence.

Abstract: A driving method for dynamically driving a field sequential color liquid crystal display is characterized in that a backlight includes at least two or more different colors, a plurality of fields constitute one frame, each field includes scanning time, non-scanning time of COMs and the time when the backlight is turned off. All liquid crystal pixels are driven by scanning each COM in a certain order during the scanning time. The non-scanning time is the time during which all liquid crystal pixels are not driven while the backlight continues to be bright after the scanning time. The time when the backlight is turned off is the time when all liquid crystal pixels are not driven while the backlight is turned off after the non-scanning time. The sum of two kinds of time mentioned above is larger than or equal to 1 ms and less than or equal to 10 ms.

Abstract: At least one embodiment of a liquid crystal display device including: pixels each of which includes a plurality of sub-pixels; and scanning signal lines provided in a display area, the scanning signal lines being divided into groups each of which includes a plurality of scanning signal lines, the groups being sequentially selected, the polarity POL of signal electric potentials being inverted when the selected group is changed from a preceding group to a succeeding group which is selected immediately after the preceding group, a plurality of (for example, two) dummy scanning periods being inserted between a horizontal scanning period corresponding to last horizontal scanning (scanning of G23) in the preceding group and a horizontal scanning period corresponding to first horizontal scanning (scanning of G2) in the succeeding group, and a scanning signal line (for example, G2) which belongs to a group selected after the preceding group being subjected to dummy scanning during each dummy scanning period so as to

Abstract: A color field-sequential liquid crystal display device comprising: a liquid crystal panel; a planar light-source unit for emitting light toward the liquid crystal panel; and a signal processor connected to the liquid crystal panel and to the planar light-source unit; wherein the signal processing includes: a comparing unit that compares video signals included in subframes of at least one identical color in each frame of two mutually adjacent video frames; and a polarity reversing unit that reverses the polarities of video signals in mutually adjacent subframes within the same frame, deciding whether or not to reverse the polarities of all video signals of one frame based upon the result of the comparison by the comparing unit, and outputting a video signal having the decided polarity to the liquid crystal panel.

Abstract: In accordance with revealed embodiments of the present invention, a source driver is provided, which is capable of providing a variety of polarity inversion patterns of source driving signals. Additionally, due to properly utilizing a multiplexing device and a switching device, hardware architecture of the inventive source driver is no more complicated than that of the conventional source driver. As a result, the present invention provides a source driver having the greater performance than the conventional source driver without increasing hardware cost and circuitry complexity.

Abstract: In first aspect of the invention, driving methods of gate interlaced scanning for color LCD are disclosed. This interlaced scanning involves powering odd gate lines sequentially first and then powering even gate lines sequentially, which can minimize the voltage polarity swing to reduce power consumption in source output block. In second aspect of the invention, driving methods of FSCLCD having an RGB LED backlight unit scanning with an increased LED lamp turn on time and reduced potential non-uniformity near modular light guid panel are disclosed. Novel driving methods of variabnt sub-color frame periods are also disclosed with various color sub-frames. In third aspect of the invention, a dual common electrode color LCD with a source driver IC block with lower driving voltage and lower power consumption in the display panel is disclosed, wherein each common electrode voltage has opposite voltage phase to reduce the source driving voltage.

Abstract: At least one embodiment of a liquid crystal display device including a display unit having scan signal lines divided into a plurality of groups which are successively selected. While the scan signal lines belonging to the selected group are successively scanned horizontally, signal potentials of the same polarity are successively supplied to a data signal line. The polarity of the signal potential is reversed between a preceding group and a subsequent group which are selected continuously. A plurality of dummy scan periods are inserted between the horizontal scan period corresponding to the last horizontal scan in the preceding group and the horizontal scan period corresponding to the first horizontal scan in the subsequent group.

Abstract: A liquid crystal display device includes a liquid crystal panel including a plurality of gate lines (GL1 to GLn) data lines (DL1 to DLm) and a plurality of pixel areas; a timing controller arranging the external input image data to be proper to the driving of the liquid crystal panel, generating a gate control signal (GCS) and a data control signal (DCS), and grouping the arranged image data into a plurality of groups each having a plurality of controller channels, and outputting a group control signal (HINV_m) by determining whether the arranged image data for each group is proper to horzintal-1-dot inversion or horizontal-2-dot inversion; a gate driver driving the plurality of the gate lines of the liquid crystal panel based on the gate control signal (GCS) from the timing controller; and a data driver grouping output terminals into a plurality of groups.

Abstract: A liquid crystal display (LCD) monitor including an LCD display panel for displaying a frame, a timing controller for generating a polarity control signal and a latch signal, and a driving circuit including a plurality of source drivers, each of the plurality of source drivers including a comparison unit for comparing a common electrode voltage with a first and a second reference voltages to generate a comparison result, an enabling unit for generating an enabling signal according to the comparison result, a source driving signal and a reset signal, a horizontal dot inversion control unit for generating a horizontal dot inversion control signal according to the enabling signal, and a polarity control unit for generating a polarity inversion control signal and the reset signal according to the enabling signal, the polarity control signal and the latch signal.

Abstract: A liquid crystal display (LCD) apparatus, an LCD driving apparatus, and a method for driving the LCD apparatus are provided. The LCD apparatus includes a panel; and a controlling unit which inserts gray data into at least one pixel included in a pixel group. Accordingly, the stress on a liquid crystal is reduced and thus a residual image is prevented from occurring on a screen.

Abstract: The data driver of a flat panel display includes: an output driver configured to output a plurality of amplified data signals for a plurality of channels corresponding to a plurality of data lines, the plurality of channels including: a plurality of amplifiers configured to amplify a plurality of input data signals and to supply the amplified data signals to the data lines; and a plurality of chopping controllers, each of the chopping controllers being coupled connected to a plurality of input terminals of a corresponding amplifier of the amplifiers and configured to receive a first control signal or a second control signal to periodically change signals applied to positive and negative input terminals from among the input terminals of the amplifiers.

Abstract: The present invention provides a liquid crystal display device including: a pixel array including a plurality of scanning lines arranged in rows, a plurality of signal lines arranged in columns, a plurality of liquid crystal elements arranged in a matrix corresponding to an intersection of each scanning line and each signal line, and a plurality of common connection lines arranged one by one corresponding to the liquid crystal elements of each line; a scanning line drive circuit; a signal line drive circuit; and a common connection line drive circuit electrically separating, from each other, one or a plurality of common connection lines (first common connection lines), and a plurality of common connection lines (second common connection lines), and electrically connecting the plurality of second common connection lines to each other to independently drive the first common connection line and the second connection lines from each other.

Abstract: A display device, includes: a plurality of thin film transistors which comprise a gate electrode, a source electrode and a drain electrode; a plurality of pixel electrodes which are respectively connected to the drain electrode of the thin film transistors; a plurality of gate lines which are respectively disposed to the opposite edge parts of the pixel electrodes in a lengthwise direction of the pixel electrodes, and connected to the gate electrode of the thin film transistors; and a plurality of data lines which are respectively disposed to a single edge part of the pixel electrodes in a widthwise direction of the pixel electrodes, and connected to the source electrode of the thin film transistors, a pair of pixel electrodes adjoining each other to interpose the single data line therebetween, and a pair of thin film transistors which are respectively connected to the pair of pixel electrodes being connected with the same single data line.

Abstract: Systems and methods are disclosed for various inversion techniques for an LCD array, such as a staggered 2-line inversion, a staggered 1-line inversion, or a staggered N-line inversion. The staggered inversion may invert 2-lines, 1-line or N-lines of an array over the duration of a frame displayed on the array. Additional systems and methods may include a high impedance power reduction technique that may be applied alone or in combination with the various inversion techniques. Specifically, electrode drivers for “idle” lines of a staggered 1-line, 2-line, or N-line inversion may be switched to a high impedance state such that the corresponding drivers for the idle lines use reduced power during the inversion of the “active” lines.

Abstract: A repair amplification circuit includes a controlling unit, a first operational amplifier, a second operational amplifier, a first switching unit, and a second switching unit. Under a detection mode, the controlling unit generates a detecting signal according to a testing signal transmitted by a unnecessary repair segment in a test picture. Under an operation mode, the controlling unit generates a switching signal according to a repair controlling signal related to the detecting signal. The first switching unit and the second switching unit are controlled by the switching signal, so as to transmit the driving signal to one of the first operational amplifier and the second operational amplifier, and to transmit a positive polarity repairing signal generated by the first operational amplifier or a negative polarity repairing signal generated by the second operational amplifier to a necessary repair segment.

Abstract: A liquid crystal display (LCD) and a driving method thereof. The LCD includes: a liquid crystal panel which includes a plurality of pixels formed in intersection areas between a plurality of gate lines and a plurality of data lines, wherein a pair of adjacent pixels share the same data line and are located between a pair of gate lines; a common voltage generator which shifts and outputs a common voltage signal having a polarity, which is reversed one time for a period time and repeated consecutively two time for a ½ period time, for a predetermined time; and a source driver which synchronizes a data signal of a line inversion system with an output timing of the common voltage signal and outputs the data signal to an opposite polarity to a polarity of the common voltage signal to drive the plurality of pixels in a dot inversion system.

Abstract: The liquid crystal display device inverts the polarity of the data signal once in the first one of n iterations (n is an integer of 2 or more) of the horizontal blanking period. Then, in each of the remaining n?1 iterations of the horizontal blanking period, the polarity of the data signal is inverted twice. A plurality of data lines are short-circuited together when inverting the polarity of the data signal, and a scan line is selected in a write period during which the data signal is applied to a picture element forming portion. Moreover, a scan line is selected in synchronism with a timing for short-circuiting the data lines before the once-selected scan line is selected again in a write period.

Abstract: A liquid crystal display includes first and second pixel electrodes, first to fourth data lines, and a first gate line. The first pixel electrode has separated first primary and secondary sub-pixel electrodes. The second pixel electrode has separated second primary and secondary sub-pixel electrodes. The first data line is coupled to the first secondary sub-pixel electrode and covered by the first pixel electrode. The second data line is coupled to the first primary sub-pixel electrode and covered by the second pixel electrode. The third data line is coupled to the second primary sub-pixel electrode and covered by the second pixel electrode. The fourth data line is coupled to the second secondary sub-pixel electrode. The first gate line is coupled to the first pixel electrode and the second pixel electrode.

Abstract: A liquid crystal display and liquid crystal display panel (101). The liquid crystal display panel (101) includes: several data lines, several scan lines, several sub-pixel arranged in a matrix form. Three scan lines are formed between every two rows of sub-pixels. One data line is formed respectively on the two sides of the first column of the sub-pixels in every three adjacent columns of the sub-pixels. Therefore, the charging time of the pixels can be improved while the high display quality is satisfied.

Abstract: A liquid crystal display and a liquid crystal display panel. The liquid crystal display panel (101) includes several data lines, several scanning lines, and n rows and m columns of pixels arranged in the form of matrix, wherein, the No. Ni+1, Ni+2, and Ni+N rows of pixels are connected to the No. i+1 scanning line G(i+1) at the same time; i is a nonnegative integer less than or equal to (n/N)?1, N is an odd number greater than or equal to 3, and n is greater than N, thus the charge time of pixel is improved.

Abstract: When each of R, G, and B pixels continuously display identical gray scales (1023 gray scale) in a liquid crystal display device in which the thicknesses of the liquid crystal layers are of R pixel>G pixel>B pixel, the R pixel is alternately supplied with a positive signal potential (SHR1023) and a negative signal potential (SLR1023), the G pixel is alternately supplied with a positive signal potential (SHG1023) and a negative signal potential (SLG1023), and the B pixel is alternately supplied with a positive signal potential (SHB1023) and a negative signal potential (SLB1023). A first middle value (SMR1023) that between SHR1023 and SLR1023 is set higher than a second middle value (SMG1023) that is between SHG1023 and SLG1023, and second middle value (SMG1023) is set higher than a third middle value (SMB1023) that is between SHB1023 and SLB1023.

Abstract: A driving circuit for connecting a display module is provided. The driving circuit includes a polarity control module, an output control module, and a detecting module. The polarity control module provides a polarity control signal. The output control module is connected with the polarity control module and provides a plurality of output control signals. The detecting module is coupled with the polarity control module and the output control module, wherein the detecting module detects the polarity control signal and selectively controls the output control module to operate in at least one of a first control mode and a second control mode to control the output control signals.

Abstract: In a liquid crystal display device that performs two-line inversion driving, a difference of a write period of a substantial video signal between a pair of pixel rows scanned with the same polarity is compensated. An input signal pre-processing circuit 42 receives display data DATA and an original data enable signal DTMG, generates and inputs a data enable signal DTMG_R and display data DATA_R to a driver control signal generation block 40. DTMG_R is reduced in the active period, and an interval of the active period between a (2n-1)-th row and a 2n-th row is set to be larger than an interval of the active period between the 2n-th row and a (2n+1)-th row. The input signal pre-processing circuit 42 reads out DATA of each row from a buffer as DATA_R in an active period of DTMG_R.

Abstract: In at least one embodiment, a display device includes: a correction section for carrying out gray scale correction on gray scale data to be supplied to a display driver, by use of a correction amount corresponding to a position of each column to which the data signal is to be supplied, the each column being on a display panel, the correction section carrying out the gray scale correction by setting the correction amount to zero for at least (i) gray scale data corresponding to a lowest positive-polarity data signal potential and (ii) gray scale data corresponding to a lowest negative-polarity data signal potential of first gray scale data to be supplied to at least one column constituting a part of all columns, the gray scale data (i) and (ii) being among the gray scale data inputted into the correction section.

Abstract: A method for generating a gamma voltage comprising, a first low voltage and a first high voltage having a first voltage range between the first low voltage and the first high voltage are divided into a plurality of gamma voltages of a first polarity during a first interval. A second low voltage and a second high voltage having a second voltage range between the second low voltage and the second high voltage are divided into a plurality of gamma voltages of a second polarity during a second interval.

Abstract: A driver circuit for dot inversion of liquid crystals includes a positive source supplying a first positive signal and a second positive signal; a negative source supplying a first negative signal and a second negative signal; a first selector unit connected with the sources to receive the first positive signal and the first negative signal; a second selector unit connected with the sources to receive the second positive signal and the second negative signal; a first source connected with the selection unit to alternatively output a first positive voltage and a first negative voltage; a second source connected with the selection unit to alternatively output a second positive voltage and a second negative voltage. When the first source outputs the first positive voltage, the second source outputs the second negative voltage. When the first source outputs the first negative voltage, the second source outputs the second positive voltage.

Abstract: A LCD panel includes an invisible zone and a visible zone. The invisible zone includes a gate driver and a wiring zone, wherein the gate driver sequentially outputs six pulse signals. By the wiring zone, a first pulse signal is converted into a first gate driving signal of the visible zone, a second pulse signal is converted into a fourth gate driving signal of the visible zone, a third pulse signal is converted into a fifth gate driving signal of the visible zone, a fourth pulse signal is converted into a second gate driving signal of the visible zone, a fifth pulse signal is converted into a third gate driving signal of the visible zone, and a sixth pulse signal is converted into a sixth gate driving signal of the visible zone.

Abstract: The invention discloses a driving apparatus for driving an LCD. The driving apparatus comprises a voltage control unit, an operating unit, a resistance unit, and a voltage selection unit. The operating unit comprises two sets of buffers formed by a plurality of operational amplifiers in negative feedback circuit. The two sets of buffers selectively receive positive polarity voltages and negative polarity voltages respectively. The voltage selection unit is provided with the positive polarity voltages and negative polarity voltages through the operating unit and the resistance unit. The voltage selection unit selectively provides the pixels of the LCD with the positive polarity voltage and the negative polarity voltage. Accordingly, each of the pixels is provided either with the positive polarity voltages or the negative polarity voltages by one of the two sets of buffers.

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: An liquid crystal display device, including: m+1 data lines crossing n gate lines defining m×n pixels; m×n thin film transistors in each of the m×n pixels, wherein n thin film transistors in a column m are alternately connected to the mth data line and the m+1th data line; and an electrical connector that connects a 1st data line to an m+1th data line.

Abstract: The present invention reduces power consumption of a display device. The display device includes a wire to which a video signal is input, a first capacitor element and a second capacitor element which are connected to the wire in parallel, and a pixel. Between the first capacitor element and the wire, a first switch is provided so as to control conduction and non conduction between the first capacitor element and the wire. Between the second capacitor element and the wire, a second switch is provided so as to control conduction and non conduction between the second capacitor element and the wire. The pixel and the wire are arranged such that the pixel and the wire can be connected to each other, and a video signal can be input to the pixel.

Abstract: A liquid crystal display apparatus and a method of driving the liquid crystal display apparatus, which commonly boosts pixels of a first group and commonly boosts pixels of a second group. The liquid crystal display apparatus includes a first group of pixels for displaying an image and a second group of pixels for displaying an image. Each pixel of the first and second groups includes a storage capacitor for storing a data voltage. The liquid crystal display apparatus further includes a first storage common voltage line connected to storage capacitors of the pixels of the first group of pixels, a second storage common voltage line connected to storage capacitors of the pixels of the second group of pixels. A first storage common voltage is supplied to the pixels of the first group through the first storage common voltage line, and a second storage common voltage is supplied to the pixels of the second group through the second storage common voltage line.

Abstract: A display device includes a display panel including a gate line, a data line, and a pixel connected to the gate line and the data line, a signal controller generating control signals for driving the display panel including a data load timing signal, a gate driver applying a gate voltage to the gate line, and a data driver applying a data voltage to the data line according to the data load timing signal received from the signal controller, wherein the data load timing signal includes a first load signal pulse and a different second load signal pulse, and where a width of the second load signal pulse is larger than a width of the first load signal pulse.

Abstract: According to one embodiment, a liquid crystal display device includes a driving module configured to apply a DC bias to a voltage corresponding to a gradation which is displayed on a pixel and to supply a resultant voltage to a pixel electrode, the driving module being configured to apply a higher DC bias in a white display state in which a potential difference is produced between a pixel electrode and a common electrode than in a black display state in which no potential difference is produced between the pixel electrode and the common electrode.

Abstract: A gate driver selects a gate line of an odd-numbered row and a gate line of an even-numbered row subsequent thereto and sets the gate line of the even-numbered row to a selected-period potential with a delay of a predetermined time from a timing when the gate line of the odd-numbered row is set to the selected-period potential. After that, the gate driver sets the potential of the gate line set at the selected-period potential to a nonselected-period potential. A source driver switches polarities of pixels in each column every two rows, and sets potentials of respective source lines to potentials according to image data of respective pixels for one row, while making the polarities of the pixels in adjacent columns opposite to each other.

Abstract: A liquid crystal display device employing a dot inversion drive method includes a pixel array, a data driver circuit, a short circuit, and a scanning circuit. The short circuit is disposed for respective outputs of the data driver circuit, and includes a switching element for connecting each of the outputs to a precharge voltage different from an output voltage. The short circuit includes the switching element disposed in one of a first switching group and a second switching group; the switching element of one of the first switching group and the second switching group is connected to respective pairs of pixel column units including an odd-numbered pixel column and an even-numbered pixel column which are adjacent to each other; and the pairs of pixel column units which are adjacent to each other are each connected to the switching element disposed in respective switching groups different from each other.

Abstract: A liquid crystal display includes a liquid crystal display panel including data lines, gate lines crossing the data lines, and liquid crystal cells arranged at crossings of the data lines and the gate lines in a matrix form, a data driving circuit supplying a data voltage to the data lines, and a power consumption reduction circuit, that calculates the number of black pixels, white pixels, or both included in an input image, decides whether or not the input image is a problem pattern increasing power consumption of the data driving circuit based on the calculation result, selectively activates a charge sharing function, which shorts between adjacent output channels of the data driving circuit during a predetermined period, and differently controls a polarity inversion period of the data voltage based on the decision result.

Abstract: A controller in an intermediate inversion drive mode causes a source driver to alternate polarities of voltages applied to pixel electrodes connected to one of source signal lines per plural gate signal lines, and to apply the voltages so that a pair of the pixel electrodes, which are connected to one of the gate signal lines and to source signal lines adjacent to each other, are subjected to different voltage application in polarity from each other, the source driver alternating polarities of the voltages applied to the respective pixel electrodes for each frame. When the source driver, in the intermediate inversion drive mode, applies the voltages sequentially to the pixel electrodes connected to one of the source signal lines, the controller sets a longer voltage application period for the inverted electrode than for the equivalent electrode.

Abstract: A driving method of a liquid crystal display panel having a source line and a counter electrode, includes driving the counter electrode to a first potential, driving the, counter electrode to a second potential being different from the first potential, setting the counter electrode and the source line to a third potential by short-circuiting the counter electrode and the source line to an interconnection having a potential between the first potential and the second potential, and driving the source line to a potential corresponding to an image data. The setting of the counter electrode and the source line to the third potential occurs in a period of one frame.

Abstract: An embodiment of the present invention provides a display device which prevents effective voltages applied to liquid crystal from differing between positive and negative polarities, even when a generation timing of a timing signal is shifted. In at least one example embodiment, a driving signal has an electric potential waveform where one frame period is made up of first period, second period, third period, and fourth period. In first frame, each of a Low level in the first period and a Low level in the third period is lower in electric potential than a Low level in the second period. In second frame, each of a High level in the first period and a High level in the third period is higher in electric potential than a High level in the second period.

Abstract: An over-drive controller applied to a display panel and a method for over-drive control are provided. The over-drive controller includes an analyzing unit and an over-drive delta value determining unit. The analyzing unit is arranged for analyzing information of a current pixel in order to generate an over-drive information. The over-drive delta value determining unit is coupled to the analyzing unit, and is arranged for determining an over-drive delta value according to the over-drive information. Herein the over-drive information includes a position information or a field information of the current pixel.