Abstract: There is provided a method for driving an electrophoresis display device equipped with a plurality of pixel electrodes, each of the pixel electrode being provided for every pixel, a common electrode provided to oppose the plurality of pixel electrodes, and an electrophoresis element containing electrophoresis particles, the electrophoresis element being sandwiched by the plurality of pixel electrodes and the common electrode. The method includes driving the electrophoresis element and updating a display by a common voltage swing drive method in which a rectangular wave in which a first potential and a second potential are repeated is applied to the common electrode for not less than one cycle during a display update time in which the first potential or the second potential for moving the electrophoresis particles is applied to each of the pixel electrodes. A frequency of the rectangular wave is not less than 20 Hz.

Abstract: A display apparatus includes a plurality of optical waveguides which are arranged in a row and have light output areas, a plurality of light sources which emit light beams incident upon the optical waveguides, a plurality of scanning lines whose cross-sections have convex portions and concave portions alternately positioned in a column, wherein inner surfaces of each of the convex portions and the concave portions are arranged so as to face the optical waveguides, and, by applying an electric field, the convex portions and the concave portions undergo displacement, and a control unit which controls the scanning lines with the application of an electric field sequentially.

Abstract: A plasma display apparatus according to the present invention efficiently accumulates charges in respective electrodes, using a driving signal supplied in a second set-down period, to prevent a flickering erroneous discharge caused by deficiency of wall charges. As a result, the plasma display apparatus can improve picture quality of a display image.

Abstract: A method for driving a plasma display panel that includes a plurality of discharge cells including a display electrode pair composed of a scan electrode and a sustain electrode. One field period includes a plurality of subfields each including an initializing period, an address period and a sustain period. The method includes applying at least two kinds of sustain pulses to one electrode of the scan electrode and the sustain electrode in the sustain period, the two kinds of sustain pulses including a first sustain pulse as a reference and a second sustain pulse rising more steeply and falling more gently than the first sustain pulse. In the method, a drive waveform voltage applied to the one electrode includes a last drive waveform voltage in the sustain period and a predetermined number of the second sustain pulses continuously disposed immediately before the last drive waveform voltage.

Abstract: Elements of the present invention relate to systems and methods for selecting a display source light illumination level based on a histogram-weighted error value.

Abstract: A liquid crystal display device including a liquid crystal panel, a gate driver unit, a source driver unit and a clock generator and a method thereof are disclosed to improve display quality. The liquid crystal panel comprises a pixel array for displaying images. The gate driver unit for generating plural driving signals drives the pixel array. The source driver unit for generating plural driving signals drives the data of the image signals. The clock generator electrically coupled to the gate driver unit generates clock signals to control an operation of the gate driver unit. A bright line is likely to occur in an image area since the last two gate driver output lines of the last two stages are not coupled to the liquid crystal panel. A solution with the duty cycle of a clock signal generated by the clock generator is adjusted to solve the aforementioned problem.

Abstract: A method of programming a driving waveform for an electrophoretic display (EPD) is provided, wherein the driving waveform includes several single pulses selected from K candidate pulse widths W1˜WK. First, K different constant pulse sequences corresponding to W1˜WK may be applied to the EPD, to obtain K sets of discrete electro-optical response data. A polynomial curve fitting algorithm is applied to obtain K relation curves C1˜CK between contrast ratios of the EPD to time, corresponding to the K sets of discrete electro-optical response data. After calculating the slope values S1˜SK of the curves C1˜CK at a current contrast ratio of the EPD, a maximum slope Smax among S1˜SK and a specific pulse width Ws corresponding thereto are determined. A next contrast ratio of the EPD is calculated according to Ws and Smax. The design process is repeated until the next contrast ratio of the EPD exceeds a target value.

Abstract: A display device includes: a light emitting element; a driving transistor connected to the light emitting element, the driving transistor generating a current according to a data voltage; a switching transistor switching the data voltage according to a gate signal; a capacitor storing the data voltage; a data line connected to the switching transistor, the data line transmitting the data voltage; and a gate line connected to the switching transistor, the gate line transmitting the gate signal. The data voltage includes a first voltage corresponding to luminance information and a second voltage that is a modified voltage of the first data voltage, wherein an average of the first voltage and the second voltage over time is substantially constant.

Abstract: It is possible to implement impulse display in a hold type display device while suppressing an increase in complexity of a drive circuit and an increase in operation frequency. In an active matrix type liquid crystal display device of a dot-inversion drive scheme which is configured such that adjacent source lines are short-circuited during a predetermined period Tsh every horizontal scanning period, a gate driver applies a pulse for turning on a TFT in a pixel forming section, as a scanning signal G(j) (j=1 to m) to be provided to each scanning signal line as follows. In each, frame period, a pixel data write pulse Pw is sequentially applied to gate lines GL1 to GLm and a black voltage application pulse Pb is applied during the above-described predetermined period Tsh which is after the lapse of a period (Thd) of the order of a ? frame from the application of the pixel data write pulse Pw to each gate line GLj. The present invention is suitable for use in an active matrix type liquid crystal display device.

Abstract: A liquid crystal display device includes a segment driver, a common driver, and a voltage setting unit. The voltage setting unit derives a voltage at which a previous drive line becomes a focal conic state regardless of image data by applying a synthesized voltage of a voltage that is applied from the segment driver and a voltage that is applied from the common driver to the previous drive line. Then, the voltage setting unit sets the voltages that are applied from the segment driver and the common driver on the basis of the derived result.

Abstract: In a plasma display apparatus displaying a stereoscopic image, crosstalk is reduced and an address discharge is caused stably. For this purpose, in the plasma display apparatus displaying a stereoscopic image, each field has a plurality of subfields, each having a sustain period where an up-ramp waveform voltage is applied to the scan electrodes after all the sustain pulses are generated. The luminance weights of the respective subfields are set such that the subfield having the lightest luminance weight is generated first in each field, the subfield having the heaviest luminance weight is generated second, and the third subfield and those thereafter have luminance weights sequentially decreasing. The up-ramp waveform voltage in the sustain period of the first subfield in each field is generated so as to have a gradient gentler than that of the up-ramp waveform voltage in the sustain periods of the subfields generated second and thereafter.

Abstract: A gate driver includes a gate driving logic circuit for generating a plurality of switch signals, a plurality of output modules each including a modulation circuit for responding to one of the plurality of switch signals to generate an intermediate signal at an intermediate terminal, a buffer for responding to the intermediate signal to generate a gate driving signal at an output terminal, and a modulation switch for determining an electric connection between the intermediate terminal and the output terminal. The modulation switch is turned on during a modulation period of the gate driving signal to modulate a waveform of the gate driving signal.

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 multiplexed pixel display includes a plurality of pixel electrodes, a plurality of storage elements, a first voltage supply terminal, a second voltage supply terminal, a common electrode, and a plurality of multiplexers each selectively coupling an associated one of the pixel electrodes with one of the first voltage supply terminal and the second voltage supply terminal responsive to a value of a data bit stored in an associated one of said storage elements. A controller is configured to sequentially write each bit of multi-bit data words to the storage elements, and assert, while each bit is stored in the storage elements, a first predetermined voltage on the first voltage supply terminal, a second predetermined voltage on the second voltage supply terminal, and a third predetermined voltage on the common electrode, for a time dependent on the significance of the stored bit. Various alternate controllers facilitate the use of additional driving schemes.

Abstract: Sharp contrast is achieved while the driving time in displaying a 3D image on a plasma display panel is shorted. For this purpose, an all-cell initializing subfield for applying up-ramp waveform voltage and down-ramp waveform voltage to a scan electrode in the initializing period is set as the first subfield of one field. The plasma display panel is driven by one of 3D drive and 2D drive. A gradient of at least one of the up-ramp waveform voltage and the down-ramp waveform voltage in the all-cell initializing period during the 3D drive is set to be steeper than a gradient of the one waveform voltage in the all-cell initializing period during the 2D drive. A shutter opening/closing timing signal is generated so that both of a right-eye timing signal and a left-eye timing signal are in the OFF state in the all-cell initializing period during the 3D drive.

Abstract: A pixel is driven by first converted image data having a first polarity and being converted by an A-gamma curve during an (N)th frame where ‘N’ is a natural number. The pixel is driven by second converted image data having a second polarity opposite to the first polarity and being converted using the A-gamma curve during an (N+1)th frame. The pixel is driven by third converted image data having the first polarity and being converted using a B-gamma curve different from the A-gamma curve during an (N+2)th frame. The pixel is driven by fourth converted image data having the second polarity and being converted by the B-gamma curve during an (N+3)th frame.

Abstract: Disclosed is a liquid crystal display device (10) including a matrix of pixels P. Each pixel P includes: a pixel electrode (30) to which a data potential supplied via a source wire (12) is applied; a retention capacitor (33) for storing the data potential temporarily before the data potential is applied to the pixel electrode (30); a transistor (31), connected to a gate wire (11a) for scanning and the source wire (12), for applying the data potential supplied via the source wire (12) to the retention capacitor (33); a transistor (34) for use in collective charging, provided between the retention capacitor (33) and the pixel electrode (30), for applying to the pixel electrode (30) the data potential temporarily applied across the retention capacitor (33); and a transistor (35) for use in collective discharging, connected to the pixel electrode (30), for discharging the pixel electrode.

Abstract: The disclosure is directed toward driving methods and a driving circuit which are particularly suitable for bi-stable displays. In certain embodiments, methods provide the fastest and most pleasing appearance to the desired image while maintaining the optimal image quality over the life expectancy of an electrophoretic display device.

Abstract: A method is provided for operating a display apparatus in which one source output of a source driver is connected with first to N-th data lines through first to N-th time division switches, which method includes: driving a first pixel positioned in a first horizontal line and connected with one of the first to N-th data lines, by feeding a first drive voltage to the one of the first to N-th data lines from the one source output with associated one of the first to N-th time division switches; and driving a second pixel positioned in a second horizontal line next to the first horizontal line and connected with the one of the first to N-th data lines, by feeding a second drive voltage to the one of the first to N-th data lines from the source output with associated one of the first to N-th time division switches. The associated one time division switch is kept turned on during a time period from a start time of the driving the first pixel to a start time of the driving the second pixel.

Abstract: Disclosed is a liquid crystal driving device, which is without a gate PCB, having improved uniformity of screen, and a driving method thereof. The liquid crystal driving device comprises: a sequence recognition means for recognizing sequence of a pertinent gate driver IC by a pulse width of a vertical start signal inputted in synchronization with a vertical synchronous signal, and generating a Carry signal and location data of the pertinent gate driver IC; and gate-off voltage generation means for receiving a first gate-off voltage and the location data of the pertinent gate driver IC, and outputting a second gate-off voltage which is generated by subtracting a voltage attenuation quantity corresponding to the location data of the gate driver IC from the first gate-off voltage.

Abstract: An image display with high brightness where a long time can be secured for light emission of self-luminous elements can be implemented using only line memories. The period for the writing in of a display voltage (period for writing in of data) continues for a number of lines (three lines), and the reset pulse becomes of a “high” state. Subsequently, operation for three lines is carried out collectively during a triangular wave period (period for writing in of a triangular wave voltage), and only the light emission controlling pulse becomes of a “high” state. During the period for the writing in of a triangular wave voltage, the writing in of a triangular wave voltage from the second time onward is rewriting of a triangular wave voltage, and thus, the period for rewriting the display voltage (dotted line portion) becomes unnecessary, and a longer period for light emission, where the light emission controlling pulse becomes of a “high” state, can be secured.

Abstract: A method and an apparatus for generating a control signal are provided. This method includes following steps. First, a reset parameter is generated according to a data enable signal and a clock signal, wherein the reset parameter indicates a cycle of the data enable signal. Next, a counting value is generated according to a positive rising edge of the data enable signal and the reset parameter. Finally, a control signal is generated according to the counting value. As a result, the control signal can be continually generated to apply various techniques when variation the data enable signal is ceased.

Abstract: A plasma display panel has a first substrate, plural pairs of display electrodes, a second substrate, and plural data electrodes. Each pair of the display electrodes is made up of a scanning electrode and a sustain electrode which are arranged parallel to each other on the first substrate. The second substrate is disposed opposite to the first substrate. A discharge space is formed between the first substrate and second substrate. The data electrodes are arranged in a direction perpendicular to the display electrodes on the second substrate. The data electrode is wider in peripheral portion of the second substrate than in a central portion of the second substrate.

Abstract: An image display apparatus includes: a correction circuit that outputs corrected data based on luminance data designating luminance of display devices, and a modulation circuit that outputs a pulse width modulation signal for driving the display device to the column wiring based on the corrected data. The correction circuit includes: a luminance calculation circuit that calculates luminance including an effect of a voltage drop in the row wiring and an effect of a light emission time of the display device for each predetermined time slot; an accumulation circuit that temporally accumulates the luminance for each time slot; and a corrected data determination circuit that outputs, as the corrected data, a value determined in accordance with the time slot at a time point when an accumulated luminance value obtained by the temporal accumulation reaches a target luminance value.

Abstract: A liquid crystal drive device (200) is configured so that a source driver (20) or a common driver (30) performs voltage application using a power voltage VDDH prior to voltage application using a boosted voltage 2VDDH upon application of a source voltage VS and high-level transition of a common voltage VCOM.

Abstract: A method for driving a display panel includes in a first time slot of a polarity inversion period turning on a plurality of first pixels in a first row via a first scan line, and providing a common voltage with a first potential; in a second time slot of the polarity inversion period turning on a plurality of second pixels in the first row via a second scan line, and providing the common voltage with a second potential; in a third time slot of the polarity inversion period turning on a plurality of first pixels in a second row via a third scan line, and providing the common voltage with the second potential; and in a fourth time slot of the polarity inversion period turning on a plurality of second pixels in the second row via a fourth scan line, and providing the common voltage with the first potential.

Abstract: A disclosed field effect transistor includes a gate electrode to which a gate voltage is applied, a source electrode and a drain electrode for acquiring a current in response to the gate voltage, an active layer provided adjacent to the source electrode and the drain electrode, the active layer being formed of an n-type oxide semiconductor, and a gate insulator layer provided between the gate electrode and the active layer. In the field effect transistor, the n-type oxide semiconductor is formed of an n-type doped compound having a chemical composition of a crystal phase obtained by introducing at least one of a trivalent cation, a tetravalent cation, a pentavalent cation and a hexavalent cation.

Abstract: A driver circuit includes a plurality of data signal output units each configured to provide the electro-optical device with the data signal, a timing signal output unit configured to provide the electro-optical device with the timing signals, a detection unit configured to detect signal levels of the data signals provided by the data signal output units, an adjustment unit configured to adjust the signal levels of the data signals provided by the data signal output units so as to approach one another on the basis of the detected signal levels, and a signal control unit configured to control the timing signal output unit so as to stop at least one of the timing signals before the detection unit detects the signal level.

Abstract: A display apparatus includes a cholesteric liquid crystal display panel, a control circuit and a driving circuit. The control circuit classifies pixels into different gradation level groups. The driving circuit applies a first driving waveform to the cholesteric liquid crystal display panel to bring pixels belonging to the first and the fourth group into a state corresponding to the highest gradation level, pixels belonging to the second group into a state corresponding to the lowest gradation level, and pixels belonging to the third group into states corresponding to gradation levels to be displayed, and applies a second driving waveform to the cholesteric liquid crystal display panel to bring pixels belonging to the fourth group into states corresponding to gradation levels to be displayed.

Abstract: The present invention relates to a shift register and GOA architecture of the same in a display panel comprising a substrate and a plurality of pixels spatially formed on the substrate defining a number of pixel rows, each pixel row having a height of H. The shift register has the plurality of shift register stages disposed spatially and sequentially on the substrate in such a way that the layout of each shift register stage has a height of (j*H), j being an integer greater than one. Each shift register stages is configured to generate j scanning signals for driving j neighboring pixel rows, respectively.

Abstract: An active matrix substrate of the present invention includes: data signal lines; scanning signal lines (GLi); transistors connected with the data signal lines and the scanning signal lines (GLi); and retention capacitor lines (CSLi). One pixel region includes a plurality of pixel electrodes. A CS driver (46) for outputting a retention capacitor line signal to drive the retention capacitor lines is formed monolithically. In one pixel region, a pixel electrode and a retention capacitor line corresponding to the pixel electrode forms a retention capacitor therebetween. This allows the liquid crystal display device based on a pixel-division system to have a liquid crystal panel with a narrower frame.

Abstract: With respect to liquid crystal display inversion schemes, a large change in voltage on a data line can affect the voltages on adjacent data lines due to capacitive coupling between data lines. The resulting change in voltage on these adjacent data lines can give rise to visual artifacts in the data lines' corresponding sub-pixels. Various embodiments of the present disclosure serve to prevent or reduce persisting visual artifacts by offsetting their effects or by distributing their presence among different colored sub-pixels. In some embodiments, this may be accomplished by using different write sequences during the update of a row of pixels.

Abstract: Apparatus (50) for processing a differential input signal. The apparatus (50) comprises a minimum peak detector (51) with a differential input (28). The peak detector (51) provides a first voltage being proportional to an average voltage peak at the peak detector's differential input (28). A compressor (53) is provided for processing the first voltage in order to provide a second voltage. The compressor (53) is followed by a voltage controllable current source providing a trim current that is adjustable by the second voltage. A hysteresis equipped circuit (67.1) whose hysteresis characteristics are adjustable by the trim current is part of the apparatus (50).

Abstract: A driver includes a plurality of amplifier circuits which outputs a plurality of gradation voltages to a display portion according to a control signal, a control circuit which outputs the control signal, and a delay portion which sequentially supplies the control signal to amplifier circuits in a first amplifier circuit group, and which sequentially supplies a delayed control signal to amplifier circuits in a second amplifier circuit group other than the first amplifier circuit group, the delayed control signals obtained by delaying the control signal by a certain delay time.

Abstract: Electronic Paper Displays can suffer from “ghosting” or previous images remaining partially visible after the display has updated to show a new image. A pseudo-random noise intermediate image is used to make the ghosting less visible to human observers. Further, other intermediate images can be used to convey visible information or to convey secret information, e.g. a watermark. A control signal for driving the bi-stable display from the current optical state to an intermediate state, then to a final optical state is also determined. In some embodiments, the intermediate state for each pixel is determined in a pseudo-random manner. The pseudo-random noise values are applied to the bi-stable display to remove noise and other artifacts from the end resulting images. The determined control signal is applied to the bi-stable display to drive the bi-stable to the intermediate state, then to the final optical state.

Abstract: A display unit includes: a display section; a barrier section including a plurality of liquid crystal barriers switching an open state and a closed state; and a barrier driving section driving the barrier section with one or a plurality of barrier drive signals. Each of the barrier drive signals is a signal including a first waveform portion being configured of a series of waveforms allowing the liquid crystal barriers to be held in an open state over a plurality of frames, or a second waveform portion being configured of a series of waveforms to allowing the liquid crystal barriers to be switched between an open state and a closed state, and a third waveform portion being located just before the first or second waveform portion and having an average pulse height value smaller than a maximum value of a pulse height value of the first or second waveform portion.

Abstract: A plasma display device having a first diode with an anode coupled to an electrode. A first switch is coupled between a cathode of the first diode and a first voltage source that supplies a first voltage. A first inductor and a second switch are coupled in series between a power recovery capacitor and the cathode of the first diode, and a third switch is coupled between the anode of the first diode and a second voltage source that supplies a second voltage lower than the first voltage.

Abstract: An electro-optic device includes an electro-optical panel and a polarization axis conversion unit that emits transmission lights corresponding to a first image or a second image with the polarization axis of the first image intersecting the polarization axis of the second image, by converting the polarization axis of the lights emitted from the electro-optical panel. The electro-optic device further includes a scanning signal supply unit supplying scanning signals through the plurality of scanning lines and an image signal supply unit supplying a first image signal corresponding to a first image to the plurality of pixel sections during a first field period and supplying a second image signal corresponding to a second image to the plurality of pixel sections during a second field period through the plurality of data lines, the first field period and the second field period being divided into a plurality of subfield periods respectively.

Abstract: For the purpose of providing a display apparatus capable of improving display quality by expanding the light-emission area of pixels by improving the layout of pixels and common power-feed lines formed on a substrate, pixels (7A, 7B) including a light-emission element (40), such as an electroluminescence element or an LED element, are arranged on both sides of common power-feed lines (com) so that the number of common power-feed lines (com) is reduced. Further, the polarity of a driving current flowing between the pixels (7A, 7B) and the light-emission element (40) is inverted so that the amount of current flowing through the common power-supply lines “com” is reduced.

Abstract: A liquid crystal display device according to the present invention includes an LCD panel 10 including a liquid crystal layer, electrodes for applying a voltage to the liquid crystal layer, and a pixel, of which the luminance varies according to a display signal voltage supplied through a transistor. The pixel includes a first subpixel to have a first luminance and a second subpixel to have a second luminance, which is different from the first luminance, in response to at least one display signal voltage supplied.

Abstract: A display apparatus includes a gate driver which sequentially outputs a gate signal at a high state in response to a gate control signal and a data driver which converts image data into a data signal in response to a data control signal. The display apparatus further includes a display panel which includes a plurality of gate lines which sequentially receive the gate signal, a plurality of data lines which receive the data signal and a plurality of pixels connected to the gate and data lines and which receive the data signal in response to the gate signal to display an image. The polarity of the data signal is inverted after the gate signal transitions to a low state.

Abstract: The method for driving a plasma display panel effects control of the sub-fields in a manner that at least one sub-filed carries out, in its initializing period, an all-cell initializing operation on the discharge cells and the plurality of sub-fields other than the aforementioned sub-field selectively carry out an addressing operation in each discharge cell; at the same time, two or more predetermined sub-fields carry out an addressing operation only when at least one sub-field had an addressing operation after the all-cells initializing operation; and an unusual-charge erase period, where scan electrodes SC-SCn undergo application of voltage with a rectangular waveform, is provided after the initializing period of at least one sub-field of the predetermined sub-fields.

Abstract: An electronic device includes a touch panel, a driving circuit, and a sensing circuit. The driving circuit generates a driving signal, and superposes phase information on the driving signal. The touch panel includes multiple crossing conductors, for providing a sensing signal in response to a contact of an object on one of the sensing conductors and to a driving signal applied on the sensing element. The sensing circuit includes a signal extractor and a tag detector. The signal extractor generates a demodulation signal based on the period of the driving signal, width of the phase information, and for demodulating the sensing signal by using the demodulation signal to determine a sensing value. The tag detector enables the signal extractor as soon as a magnitude of the sensing signal is over a predetermined threshold. The signal demodulates the sensing signal by using a demodulation signal whose period is the same as the driving signal to determine the sensing value.

Abstract: A pixel structure and its related driving method are proposed. The pixel structure comprises a first transistor, a second transistor, a liquid crystal capacitor, a first storage capacitor, and a second storage capacitor. The first transistor comprises a gate coupled to a first scan line, a source coupled to a data line, and a drain coupled to the first storage capacitor. The first transistor is used for conducting the data line and the first storage capacitor. The second transistor comprises a gate coupled to a second scan line, a source coupled to the first storage capacitor, and a drain coupled to the second storage capacitor. A first polarity voltage applied on the data line is stored into the first storage capacitor during a first time period which the first transistor is turned on. The first storage capacitor discharges due to a connection between the first capacitor and the second capacitor during a second time period which the second transistor is turned on.

Abstract: A method for operating an electrophoretic display apparatus including a first substrate; a second substrate; an electrophoretic device being held between the first substrate and the second substrate and containing electrophoretic particles; a first electrode formed on a surface of the first substrate, the surface facing the electrophoretic device; and a second electrode formed on a surface of the second substrate, the surface facing the electrophoretic device is provided. The method includes image displaying in which a voltage is applied to the electrophoretic device.

Abstract: A liquid crystal display device includes a plurality of data signal lines and scanning signal lines intersecting orthogonally with the data signal lines; pixel electrodes each provided at each of intersections of the plurality of data signal lines and scanning signal lines; and a counter electrode, the plurality of data signal lines are divided into sets each including data signal lines that are provided next to one another so as to respectively correspond to primary colors constituting a display color, the data signal lines in each set being connected to one of output signal lines to which data signals corresponding to the primary colors are supplied during a single horizontal scanning period by time division, the data signals supplied to the output signal lines being switched, the counter electrode being subjected to application of a voltage being varied during at least one horizontal scanning period.

Abstract: Electrophoretic display units (1) comprising pixels (11) situated between common electrodes (6) and pixel electrodes (5) need, for shortening the total image update times, increased driving voltages across the pixels (11) which endanger transistors (12) coupled to the pixel electrodes (5). These increased driving voltage (V6) to the common electrode (6). To protect the transistors (12) against these increased driving voltages, a setting signal (S1, S2) is supplied to the pixel electrode (5) via the transistor (12) for reducing a voltage across the pixel (11) resulting from a transition in the alternating voltage signal (V6). During driving frame periods (Fd) data pulses (D1, D2, D3, D4, D5, D6) are supplied, and during setting frame periods (Fs), the setting signals (S1, S2) are supplied.

Abstract: An image display device is provided which suppresses discomfort “flickering” in a process of renewing a screen to realize multiple gray level displaying including an intermediate color. Electrophoretic particles are made up of n-kinds of charged particles C1, . . . , Ck, . . . , Cn having colors different from one another and threshold voltages to initiate an electrophoresis. Each of charged particles C1, . . . , Ck, . . . , Cn satisfies a relationship characteristic of threshold value voltage of charged particles> . . . >threshold value voltage of charged particle Ck> . . . >threshold value voltage of charged particle Cn. A voltage applying unit, at time of renewing a screen, renews a screen to a next screen having a desired density by a transition of a relative color density of each charged particle to a relative color density of a corresponding intermediate state in order of charged particle C1> . . . >Ck, . . . , Cn for a voltage driving waveform of each charged particle.

Abstract: A method for driving a liquid crystal display device that decreases a sticking of the display image. The liquid crystal display device includes a pixel electrode and a counter electrode. A polarity of the signal supplied to the pixel electrode is periodically inverted at the first period and the second period. The length of the first period is different from that of the second period.

Abstract: A display apparatus includes: a plurality of pixel circuits; and a signal supply circuit which supplies any one of a potential of a video signal, an extinction potential for extinguishing light-emitting devices, and a high-level potential higher than the extinction potential, wherein each of the plurality of pixel circuits includes a storage capacitor which retains a voltage corresponding to the video signal, a drive transistor which supplies a current based on the voltage retained in the storage capacitor to the corresponding light-emitting device, a light-emitting device which emits light in accordance with the current supplied from the drive transistor, and a write transistor which writes the voltage corresponding to the video signal to the storage capacitor after the potentials supplied by the signal supply circuit in order of the high-level potential and the extinction potential are given to the gate terminal of the drive transistor.