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: A voltage having the positive polarity and a voltage having the negative polarity are alternately applied to a pixel between a counter electrode and a pixel electrode. A counter electrode voltage (Vcom) generating circuit or a source signal generating section is provided each of which controls effective voltages to be applied to the pixel for an identical tone so that an effective voltage having the positive polarity and an effective voltage having the negative polarity are asymmetrically applied to the pixel for all of the tones which can be displayed. The counter electrode voltage (Vcom) generating circuit or the source signal generating section shifts a counter electrode voltage Vcom-A or a source voltage by 0.3 V or more from a voltage causing the effective voltages to be symmetrically applied to the pixel.

Abstract: An object of the present invention is to realize a transmission distortion correction system for allowing an image signal including a plurality of picture signals to be corrected, and to realize an image signal transmitter and an image display unit.

Abstract: An exemplary liquid crystal display (20) includes gate lines (21), a gate driver (25) configured for receiving input signals, a comparator (28), a reference voltage generator (29) configured for outputting a reference voltage to the comparator, and a timing control circuit (27). The gate driver is further configured for driving the gate lines. Falling edges of waveforms of the input pulse signals drop gradually from a first voltage to a second voltage. The comparator is configured for receiving the input pulse signals and the reference voltage, and outputting a control signal according to the input pulse signals and the reference voltage. The timing control circuit is configured for receiving the control signal from the comparator, and, according to the control signal, outputting output enable signals to the gate driver to adjust gate signals applied to the gate lines.

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 included in a compact portable device reduces burden imposed on a driver circuit for driving counter electrodes and produces images having preferable quality. The liquid crystal display device includes liquid display element and liquid crystal driving circuit. The liquid crystal driving circuit drives two counter electrode signal lines during one scanning period for driving one scanning signal line. Counter signals having different polarities are supplied to the two counter signal lines. Since the number of pixels operated by one counter electrode signal line is decreased to half, burden imposed during drive of counter electrodes is reduced.

Abstract: A liquid crystal display (“LCD”) capable of improving display quality includes a first insulating substrate, gate wiring lines formed on the first insulating substrate and extending in a first direction, data wiring lines insulated from and crossing the gate wiring lines and extending in a second direction, and pixel electrodes, each of which includes first and second sub-pixel electrodes that are applied with different data voltages from the data wiring lines, in which at least a part of the second sub-pixel electrode overlaps the data wiring lines.

Abstract: Liquid crystal display devices to suffer from low contrast at low temperatures because the frequency characteristics of the liquid crystal dielectric constant are degraded. An active matrix liquid crystal display device performs pre-charging in which a pre-charge signal Psig is written with a pre-charge switch before display signals are written to data lines of a display area with a dated driver. The pre-charge signal Psig is the gray-scale level as obtained when no voltage is applied to liquid crystal, such as a common voltage VCOM, thus increasing the contrast at low temperature.

Abstract: A liquid crystal display panel driving device is provided which is capable of reliably improving a response speed of a liquid crystal and of obtaining good display quality. When overshooting driving is performed in a current frame for displaying, an excessive response level in a next frame is predicted based on a combination of a gray level in one past frame and a gray level in a current frame and, when an excessive response is predicted, a corrected gray-level value to prevent (or to cancel) the excessive response is calculated in advance. By applying a voltage corresponding to the corrected gray-level value, an excessive response in a next frame can be suppressed. Irrespective of whether or not an excessive response is predictable in a next frame, an overshooting driving can be performed at an applied voltage sufficiently corresponding to a target gray-level value and, as a result, a response speed of a liquid crystal can be reliably made high and good display quality can be obtained.

Abstract: A display driving apparatus that drives display pixels having pixel electrodes arrayed in rows and columns on the basis of display data includes a signal generating circuit generates a driving signal for sequentially sets the respective display pixels corresponding to the respective rows in a selected state, and applies a signal voltage corresponding to a gradation value of the display data to the pixel electrode of each display pixel. The display driving apparatus also includes a correcting circuit that corrects the driving signal in accordance with selecting operation by the driving signal for each display pixel, and brings the magnitude of the signal voltage with respect to the gradation value of the display data, which is to be applied to the pixel electrode of each display pixel, close to the same value, and applies the corrected driving signal to each of the display pixels set in the selected state.

Abstract: A display driving circuit that carries out CC driving is configured such that retaining circuits are provided in such a way as to correspond one-by-one to their respective stages of a shift register, that a polarity signal CMI is inputted to each of the latch circuits, that when an internal signal Mn generated by a shift register at the nth stage becomes active, a latch circuit corresponding to the nth stage loads and retains the polarity signal CMI, that an output signal SRBOn from the shift register at the nth stage is supplied as a scanning signal to a gate line connected to pixels corresponding to the (n+1)th stage, and that an output from latch circuit corresponding to the nth stage is supplied as CSOUTn to a CS bus line forming capacitors with pixel electrodes of pixels corresponding to the nth stage.

Abstract: The present invention relates to an image processing method, an image processing apparatus and an image processing program for dealing with inverted characters (outlined characters) constituted by white pixels on a black ground in a tree structure same as that of normal characters constituted by black pixels on a white ground. In the present invention, black pixel blocks and white pixel blocks are sampled recursively from a binary image, tree structure data indicating a positional relation between the sampled black pixel blocks and white pixel blocks is created, an inverted image is created by white-black-inverting the insides of black pixel blocks that can include inverted characters, of black pixel blocks included in the tree structure data, white pixel blocks and black pixel blacks are sampled from the created inverted image, and data regarding the sampled white pixel blocks and black pixel blocs is added to corresponding nodes of the tree structure data.

Abstract: A driving apparatus for a display device includes a plurality of pixels arranged in a matrix, and each pixel includes first and second sub-pixels. The driving apparatus includes a memory for storing digital data, a controller for calling the digital data to output the digital data together with a clock signal and at least one selection signal, and a gray voltage generator formed of an integrated circuit to receive the digital data from the controller and to generate gray reference voltage sets. The gray voltage generator includes first and second registers for storing the digital data, a selector including a plurality of multiplexers for receiving the outputs of the first and second registers, and a converter including a plurality of digital-analog converters connected to the multiplexers. As described above, the gray voltage generator is provided in the form of a chip so that it is possible to reduce the area occupied on a printed circuit board (PCB) and to reduce the cost of the gray voltage generator.

Abstract: A apparatus and method for driving a liquid crystal display that minimizes the generation of electro-magnetic interference (EMI) in a cost effective manner includes a gate control signal generator that generates a gate control signal using a externally inputted synchronizing signal, a data control signal generator that generates a data control signal using the synchronizing signal, a data aligner that re-aligns externally inputted video data, a plurality of buffers at output terminals of the gate control signal generator, the data control signal generator and the data aligner, and a control unit that applies control signals to the buffers to control current values of signals outputted by the buffers.

Abstract: A liquid crystal display device includes a liquid crystal modulation element including a first electrode, a second electrode, and a liquid crystal layer, a potential difference providing unit that provides a potential difference between the first electrode and the second electrode, and an illumination optical system that illuminates the liquid crystal modulation element by using light from a light source. The liquid crystal display device includes a charge adjusting mode for reducing the intensity of an electric field generated by electric charge stored between the liquid crystal layer and at least one of the first electrode and the second electrode.

Abstract: A flat display and a method for modulating a clock signal for driving a flat display are provided. The flat display includes a clock generator and a clock modulator. The clock generator provides a clock signal that includes at least a first cycle waveform and a second cycle waveform following said first cycle waveform. The first cycle waveform is modulated by the clock modulator as a first modulated cycle waveform divided by a first positive modulated cycle waveform and a first negative modulated cycle waveform, and the second cycle waveform is modulated as a second modulated cycle waveform divided by a second positive modulated cycle waveform and a second negative modulated cycle waveform. The first positive modulated cycle waveform and the first negative modulated cycle waveform have a first duration difference, and the second positive modulated cycle waveform and the second negative modulated cycle waveform have a second duration difference different from the first duration difference.

Abstract: A driving system and method for liquid crystal display is disclosed. The system stores only the driving values corresponding to specific grayscale values of pixels on a current frame and specific grayscale values of pixels on a previous frame. The stored driving values are then used by an operation processing unit of the system to calculate out driving values to be applied to the current frame. Moreover, the system is provided with a logic judging unit for preventing the noises of the frame from being overdriven.

Abstract: There is provided an liquid crystal display apparatus configured to invert a pixel voltage and a common voltage on a frame to frame basis while setting a transition voltage Vt in such a manner that the polarity of the pixel voltage to be applied to a pixel electrode of each display pixel and the polarity of the common voltage to be applied to a common electrode of a common substrate are differentiated.

Abstract: A scanning line driving circuit includes: each stage shifts and outputs in sequence a start pulse; and logic circuits provided corresponding to the scanning lines and operating to determine the logical product of a signal outputted from the shift register of the stage corresponding to the scanning line and an enable signal supplied differently every group, the enable signal corresponding to the group becomes, in a horizontal scanning period in which the image data writing is carried out for the scanning lines belonging to the group, an active level in a horizontal effective scanning period and an inactive level in a horizontal return line period; and in a horizontal scanning period in which the image data writing is not carried out for the scanning lines belonging to the group, an inactive level in the horizontal effective scanning period and an active level in the horizontal return line period.

Abstract: Provided is an active matrix substrate for use in a liquid crystal display device in which two scan signal lines (16i and 16j) are scanned simultaneously; pixel regions including two pixel electrodes each are arranged in the row and column directions when the column direction is the scanning direction; one scan signal line is provided for one pixel region row; and a shielding conductive body (41p) is disposed to cover the gap between two adjacent pixel electrodes (17ib and 17ja), one of which is a pixel electrode included in a given pixel region (101) and the other is a pixel electrode included in a pixel region (102) adjacent to said given pixel region (101) on the downstream side of the scanning direction. By using the present active matrix substrate, the display quality of a liquid crystal display device in which two scan signal lines are selected simultaneously can be improved.

Abstract: A liquid crystal display device is disclosed comprising a display part, a scanning line driving circuit, a signal line driving circuit, a counter electrode driving circuit for providing counter electrodes with a counter electrode driving signal reversed in phase from a signal line driving circuit, an auxiliary capacitance having one end connected to an output end of each of switching elements, and an auxiliary capacitance line driving circuit for driving a plurality of auxiliary capacitance lines arranged in rows and has ends of such auxiliary capacitances in each row commonly connected thereto, wherein the auxiliary capacitance line driving circuit is adapted to apply a first voltage to the auxiliary capacitance lines for a first half cycle of the counter electrode driving signal and apply a second voltage thereto for a (p+½)th cycle after the first period of the counter electrode driving signal where p is 0 or a natural number, said auxiliary capacitance line driving circuit making the auxiliary capacitance

Abstract: A liquid crystal display apparatus includes a plurality of areas in which response speeds greatly different from each other coexist in a pixel. A first replacement process section replaces the image data of the desired target frame with a first gradation, when a gradation transition from a current frame to a desired target frame corresponds to the above gradation transition. A second replacement process section replaces the image data of the current frame with a second value. The first value is set to a value causing the pixel to respond at a relatively higher speed without the occurrence of the excessive brightness. Without avoiding the deterioration of the image, it is possible to drive a liquid crystal display apparatus including areas whose response speeds are different from each other coexist in the pixel, such as a liquid crystal display apparatus of vertically aligned mode and normally black mode.

Abstract: A method of driving a liquid crystal display device includes multiplying a frame frequency of an inputted current frame to generate a multiplied odd-numbered frame and a multiplied even-numbered frame; determining whether said current frame is a still image frame or a dynamic image frame; detecting an edge area at which a motion blur occurs from the multiplied odd-numbered frame and the multiplied even-numbered frame; converting gray level values of pixels positioned at the detected edge area at the multiplied odd-numbered frame and the multiplied even-numbered frame; and continuously outputting the multiplied odd-numbered still image frame and the multiplied even-numbered still image frame or continuously outputting the multiplied odd-numbered dynamic image frame and the multiplied even-numbered dynamic image frame having the converted gray level values in accordance with the determined result. A liquid crystal display device is also disclosed.

Abstract: A drive circuit includes a drive unit coupling with data lines for receiving at least one clock signal and a first enable signal to generate a drive signal to drive data lines, and a delay unit electrically coupled with the drive unit for receiving the clock signal and the first enable signal and generating a second enable signal falling subsequent to the first enable signal in a predetermined time interval.

Abstract: An image display apparatus includes an image displaying unit that includes a light source unit and a light modulation device, a histogram generating unit, a light source luminance calculator, a function storing unit, a first evaluation value calculator, a second evaluation value calculator, a third evaluation value calculator, a function acquiring unit and a control unit. The function acquiring unit acquires a plurality of the third evaluation values by repeating processing by the first to third evaluation value calculators with modification to a level conversion function and acquires a level conversion function that has a smallest third evaluation. The control unit supplies a signal of a converted video resulting from conversion of the image with the acquired level conversion function to the light modulation device.

Abstract: An image output apparatus includes: a display device having a light modulation section which is divided into a plurality of channels and drives the divided channels; a plurality of level adjusting units that are provided for each channel, adjust the levels of video input signals for each channel, and output adjusted output signals to the display device; an adjustment amount correcting unit that performs a basic correction process; a continuous correction control unit that controls the adjustment amount correcting unit to perform the basic correction process during a first predetermined period; and an intermittent correction control unit that controls the adjustment amount correcting unit to perform the basic correction process a predetermined number of times during a second predetermined period.

Abstract: A liquid crystal display device and a driving method thereof, which are capable of preventing generation of a residual image upon power-off, are disclosed. The liquid crystal display device includes a power supply unit for outputting a plurality of drive voltages after delaying the drive voltages, a voltage detector for monitoring one of the drive voltages, and outputting a power-off detect signal based on the result of the monitoring, a timing controller for increasing a frequency of a control signal in response to the power-off detect signal, and outputting the frequency-increased control signal, a gate driver for outputting a scan signal in response to the frequency-increased control signal, a data driver for outputting a constant voltage in response to another control signal from the timing controller, and a liquid crystal panel for applying the constant voltage to all sub-pixels of the liquid crystal panel in response to the scan signal.

Abstract: A display ON sequence for preventing problems in a display at the starting time of a liquid crystal display device is prevented from having malfunctions, which might otherwise be caused in a scanning line drive circuit by applying a voltage to scanning signal lines. In the display ON sequence at the starting time of the liquid crystal display device of an active matrix type, all the scanning signal lines of a liquid crystal panel are brought into a selected state thereby to release the electric charges in the liquid crystal capacity and the auxiliary capacity in each pixel forming portion through data signal lines. After this, the scanning signal lines are stepwise brought into an unselected state by dividing them several times, before their sequential selections (or scans) for the display are started.

Abstract: A method for line-by-line addressing of RMS responding display matrix with wavelets, said method comprises steps of: selecting the wavelets such that energy of them is proportional to an integer power of two to form a wavelet matrix; obtaining select waveform profile by summing elements of column in the wavelet matrix; obtaining column waveforms by dot product of data with column of the wavelet matrix; and applying the select waveform and the corresponding column waveforms by selecting one row of the display matrix at a time.

Abstract: This invention provides a color passive matrix bistable liquid crystal display system, in which one respective scan line corresponds to sub-pixels of same color and neighboring scan lines correspond to sub-pixels of different colors. The scan lines are grouped in accordance with the colors of the sub-pixels corresponding thereto such that different scan driving voltages can be provided to the sub-pixels of different colors when the scan lines are scanned. By way of the arrangement of the sub-pixels, different scan driving voltages are switched to the respective scan lines in accordance with the colors of the sub-pixels corresponding thereto. As a result, a demand that the sub-pixels of different colors require different scan driving voltages is satisfied. The image quality is improved.

Abstract: Voltage consumption during flashing of a frame is suppressed. Under a state in which an image is written and held, when a waveform of low voltage at low frequency is applied to the whole surface of a bistable liquid crystal display panel, the liquid crystal molecules are inclined to some extent, if not to the state vertical to a substrate, and the frame displays gray close to white. After that, when the voltage application is stopped, the image displayed before the application appears because the orientation state of the bistable liquid crystal display panel is not broken. By utilizing this phenomenon, a state of applying the waveform of low voltage at low frequency and a non-application state are repeated at a given time interval, and hence the frame can be flashed with low power consumption.

Abstract: A multi-domain vertical alignment liquid crystal display device includes a data line, a first gate line, a second gate line, a first sub-pixel unit, and a second sub-pixel unit. The first sub-pixel unit includes a first switch, a first liquid-crystal capacitor and a first storage capacitor. The first switch functions to control writing the data signal of the data line into the first liquid-crystal and storage capacitors based on the first gate signal of the first gate line. The second sub-pixel unit includes a second switch, a second liquid-crystal capacitor, an auxiliary switch, a second storage capacitor and a third storage capacitor. The second and auxiliary switches are employed to control writing the data signal into the second liquid-crystal capacitor, the second storage capacitor and the third storage capacitor based on the first gate signal and the second gate signal of the second gate line respectively.

Abstract: Systems for displaying images incorporates a display device that includes a plurality of gate lines, a plurality of data lines intersecting the plurality of gate lines, a plurality of switches each having a first end coupled to a corresponding gate line and a second end coupled to a corresponding data line, a plurality of storage units each coupled to a third end of a corresponding switch for storing data received from a corresponding data line, a power line formed in parallel with the plurality of gate lines, and a plurality of coupling capacitors each having a first end coupled to the power line and a second end coupled to a corresponding data line.

Abstract: An impulse-type driving method for a liquid crystal display (LCD) is used for driving a pixel array of an LCD panel. The method includes providing a set of impulse control signals to a source driver. The source driver, according to the set of impulse control signals, drives the pixel array. The set of impulse control signals includes a command signal. The command signal includes a field of determining data voltage polarity and a command field. According to a time sequence, the field of determining data voltage polarity provides a polarity data for determining a voltage polarity output by the source driver. The command field and the field of determining data voltage polarity are consecutively and alternatively output, in which the command field allows to add a dynamic command in accordance with a desired action.

Abstract: In one embodiment of the present invention, a display device is enabled to make the display impulse and to improve the charging characteristics of pixel capacities while suppressing the complexity of a drive circuit or the like and the increase in the operating frequency. In an active matrix substrate of a liquid crystal display device, each pixel electrode is connected through a pixel TFT with a source line and through a discharging TFT with a holding capacity line. For one frame period, a liquid crystal capacity, as established by the pixel electrode corresponding to each display line and a common electrode, is charged, when the pixel TFT is turned ON by a pixel scanning signal on a pixel gate line, and is then discharged when the discharging TFT is turned ON by a discharging scanning signal on a discharging gate line. The source line is subjected to a 2-H dot inverse drive but to a charge share for every horizontal periods.

Abstract: A pixel structure includes a first scan line, a second scan line, a third scan line, a data line, a first thin film transistor (TFT), a second TFT, a third TFT, a first pixel electrode and a second pixel electrode. Particularly, the second scan line and the third scan line are electrically connected with each other. The first TFT is electrically connected with the first scan line and the data line. The second TFT is electrically connected with the first TFT and the second scan line. Furthermore, the third TFT is electrically connected with the third scan line and the data line. In addition, the first pixel electrode and the second pixel electrode are respectively electrically connected with the second TFT and the third TFT.

Abstract: Provided is a liquid crystal display panel, a liquid crystal display device having the same, and a driving method thereof capable of improving image quality. The liquid crystal display device includes a liquid crystal display panel; a gate driver; and a data driver. The liquid crystal display panel includes pixel regions arranged in a matrix, each being defined by a gate line and first and second data lines crossing the gate line. The gate driver supplies a scan signal to the gate line. The data driver alternately supplies a data voltage and a common voltage to the first and second data lines.

Abstract: A liquid crystal display (LCD) capable of improving display quality and a method of driving the same are provided.

Abstract: A power supply circuit which outputs a common electrode voltage to a common electrode of an electro-optical device provided opposite to pixel electrodes through an electro-optical material includes a voltage booster circuit which generates a boost voltage boosted by a charge-pump operation in synchronization with a charge clock signal, and a common electrode voltage generation circuit which outputs a high-potential-side voltage or a low-potential-side voltage generated based on the boost voltage to the common electrode as the common electrode voltage. The charge clock signal has a rising edge and a falling edge in a period in which a sign of voltages between the pixel electrode and the common electrode are either positive or negative.

Abstract: A driving circuit for a flat panel display device includes a generation unit for generating n-phase form generation clocks; and a plurality of shift register stages for sequentially generating a plurality gate signals to a plurality of gate lines using the n-phase form generation clocks, one of the shift register stage including first and second output terminals for outputting first and second switching signals, respectively, using an output signal of one of the preceding shift register stages and an output signal of one of the subsequent shift register stages; a first transistor connected to the first output terminal for receiving one of the n-phase form generation clocks; and a second transistor connected to the second output terminal and the first transistor, wherein each gate line is connected to a node between the first and second transistors.

Abstract: A method to display gray shades in RMS responding display matrix, includes: selecting each row of the display matrix with a set of “s” discrete select voltages in a sequence or random and applying a set of discrete data voltages to a column of the display matrix wherein the data voltages are of both polarities and energy of the select and data waveforms that are applied to rows and columns are constants during the “s” time intervals for all the rows and columns to display gray shades in RMS responding display matrix.

Abstract: Pixels include liquid crystal capacitors and holding capacitors having first ends connected to pixel electrodes and second ends connected to common electrodes corresponding to the first to 320th rows. A common electrode driving circuit includes TFTs for individual rows. In a partial mode, when a period in which a level of a scanning signal is high is long, a control signal Vg-c is brought to a high level during the period so that the TFTs are turned on. Since gate voltages are applied to the TFTs, a problem in that the gate voltages are reduced due to voltage leakage and the common electrodes are brought into high-impedance states is avoided. Alternatively, potentials of the common electrodes are fixed to a voltage of a common signal, which is a low-level when positive-polarity writing is specified to all the rows and a high-level when negative-polarity writing is specified to all the rows.

Abstract: An object of the present invention is to provide a flat display device which achieves an excellent and stable display even when the periodicity of voltage polarity is switched at the beginning of a frame at the time of driving a signal line while providing a periodicity of every M scanning lines to the voltage polarity of signal lines in each frame. A control circuit 22 controls so as to provide a voltage polarity of the final line in the periodicity of every four scanning lines to a signal line prior to driving a signal line corresponding to the first scanning line Y(1) at the beginning of a frame.

Abstract: A pixel structure and a method for generating drive voltages in the pixel structure are disclosed. The pixel structure comprises a first sub-pixel electrode, a first com-line, and second com-line. The first sub-pixel electrode is applied with a first drive voltage. The first com-line transmits a first com-voltage signal. The second com-line transmits a second com-voltage signal. The first drive voltage is derived by combining the first com-voltage signal and the second com-voltage signal.

Abstract: A liquid crystal display aimed at improving response speed, movie characteristics and viewing angle dependence of gradation is provided as having a liquid crystal panel including a plurality of gate lined selecting pixels and a plurality of data lines supplying pixel data, and a data driver dividing one frame into a plurality of fields to thereby convert a frame data into a field data, and supplying the field data to the data line, wherein in the last field out of the plurality of fields, the data line is applied with a first constant voltage, for the frame data ranging from the minimum gradation value to a first gradation value, and in the top field out of the plurality of fields, the data line is applied with a second constant voltage larger than the first constant voltage, for the frame data ranging from a second gradation value to the maximum gradation value.

Abstract: An exemplary liquid crystal display (LCD) provides data lines, gate lines, and pixel units arranged as a matrix array. A method for driving the LCD includes a step of analyzing and determining polarities of one column of the pixel units as determining pixels, thereby defining a first polarity group and a second polarity group, and a step of sequentially applying corresponding data signals to a part of the whole pixel units that are arranged at same rows with the first polarity group in a part of a period of a frame. Corresponding data signals are sequentially applied to the other part of the whole pixel units that are arranged at same rows with the second polarity group in another part of a period of a frame.

Abstract: Provided are a phase-locked loop (PLL) receiving an input clock and generating a clock, a display using the PLL, and a method for a timing controller to generate a clock using the PLL. The display includes a timing controller configured to generate a first clock using a PLL, insert the first clock into data, and transmit the data into which the first clock is inserted, transmission lines configured to transfer the data into which the first clock is inserted, and data-driver integrated circuits (ICs) configured to receive the data into which the first clock is inserted, separate the first clock from the data, and drive data lines of a liquid crystal panel on the basis of the first clock and the data.

Abstract: The liquid crystal display device of the invention includes a liquid crystal display element section that is initialized such that the alignment state of liquid crystal molecules is transitioned from a splay alignment to a bend alignment capable of displaying an image, and a driving circuit that applies to the liquid crystal display element section a transition voltage that causes the alignment state of liquid crystal molecules to be transitioned from the splay alignment to the bend alignment in the initialization. Further, a clock signal generator generates upon supply of power to the driving circuit, a clock signal, which is delivered to the driving circuit, as a reference for starting application of the transition voltage and for measuring a transition voltage application period.

Abstract: A source driver which can control the spatial cycle of inverting the polarity of offset voltage in response to the spatial cycle of inverting the polarity of data signal. The liquid crystal display device according to the present invention has an LCD panel, having data lines, and source drivers for supplying data signal to the data lines. The source driver includes an offset cancel control circuit for generating an offset cancel control signal and an amplifier used for generating the data signal, which is configured so as to invert the polarity of the offset voltage in response to the offset cancel control signal OCC. The offset cancel controller circuit receives the pattern select signal PSEL specifying the cycle of inverting the polarity of the offset voltage of the amplifier to generate the offset cancel control signal in response to the pattern select signal PSEL.

Abstract: Embodiments of the present invention generally provide m Methods and apparatus for reducing power consumption of backlit displays are described. Power consumption is reduced by dimming backlighting by a first scale factor and boosting pixel values by a second scale factor to compensate for the dimming. The scale factors may be constant values. Alternately, one or both of the scale factors may be determined based on pixel values for one or more frames to be displayed and/or one or more frames that have been displayed. For example, scale factors may be calculated based on an average linear amplitude of one or more frames of pixel values or from a maximum pixel value of one or more frames of pixel values. A graphical processing system is described including an integrated circuit capable of transforming a pixel value from a gamma-compensated space to a linear space.