Abstract: The present disclosure provides a shift register unit, a driving method, a gate driving circuit and a display device. The shift register unit includes a pull-down node control circuit; the pull-down node control circuit is electrically connected to an input terminal, a reset terminal, a first voltage terminal, a second voltage terminal and a pull-down node, respectively, and is configured to, under the control of an input signal provided by the input terminal and a reset signal provided by the reset terminal, control the pull-down node to be electrically conducted to the first voltage terminal or the second voltage terminal, and control to hold a potential of the pull-down node.

Abstract: An information handling system includes a timing controller configured to transmit a command for a common voltage of a particular frame rate to a power management circuit. A storage component may store digital information, wherein each digital information is associated with the common voltage of a particular frame rate. The power management circuit supports a variety of common voltage requirements of the liquid crystal display including an ability to select digital information of the digital information that is associated with the common voltage at the particular frame rate stored in the storage component and apply the common voltage at the particular frame rate to the liquid crystal display.

Abstract: The present technology relates to a signal processing apparatus, a control method, an image pickup element, and an electronic appliance that achieve the suppression of an increase in electric power consumption. The signal processing apparatus may be configured to control an amount of electric current at a differential stage in a comparison unit that compares signal levels of a plurality of signals and reduce the amount of electric current for a period other than this comparison period. For example, the amount of electric current may be reduced by turning off part of a group of switches each capable of disconnecting a path of an electric current from an electric current source. In addition, for example, the amount of electric current may be reduced by causing a gate potential at the electric current source unit to decrease. The present technology can be applied to, for example, an image pickup element and an electronic appliance.

Abstract: A display comprises a matrix comprising a plurality of N rows divided into a plurality of M columns of cells, each cell including a light emitting device; a scan driver providing a plurality of N scan line signals to respective rows of said matrix, each for selecting a respective row of the matrix to be programmed with pixel values; and a data driver providing a plurality of M variable level data signals to respective columns of the matrix, each for programming a respective pixel within a selected row of the matrix with a pixel value. A pulse driver provides a plurality of N driving signals to respective rows of the matrix, each driving signal comprising successive sequences of pulses enabling the cells to emit light according to their programmed pixel values during respective sub-frames of successive frames to be displayed.

Abstract: A display device is disclosed. The display device includes: a pixel array unit and a driving unit which drives the pixel array unit. The pixel array unit includes rows of first scanning lines and second scanning lines, columns of signals, pixels in a matrix state arranged at portions where the scanning lines and the signal lines cross each other and power supply lines and ground lines supplying power to respective pixels. The driving unit includes a first scanner performing line-sequential scanning to pixels by each row by supplying a first control signal to each first scanning line sequentially, a second scanner supplying a second control signal to each second scanning line sequentially so as to correspond to the line-sequential scanning and a signal selector supplying a video signal to rows of signal lines so as to correspond to the line-sequential scanning.

Abstract: In a method for determining touch applied to an electronic device, ultrasonic signals are emitted from an ultrasonic sensor. A plurality of reflected ultrasonic signals from a finger interacting with the ultrasonic sensor is captured. A first data based at least in part on a first reflected ultrasonic signal of the plurality of reflected ultrasonic signals is compared with a second data based at least in part on a second reflected ultrasonic signal of the plurality of reflected ultrasonic signals. A signal change due to a deformation of the finger during a touch interaction with the ultrasonic sensor is determined based on differences between the first data and the second data. A touch applied by the finger to the electronic device is determined based at least in part on the signal change due to the deformation.

Abstract: The present invention discloses a method for a source driver, for preventing image sticking in a display panel coupled to the source driver. The source driver includes a first output driver and a second output driver having different polarities. The first output driver is configured with a first driving capability and the second output driver is configured with a second driving capability. The method includes the steps of: obtaining an effective voltage of a pixel in the display panel; and adjusting the second driving capability of the second output driver to be identical to the first driving capability of the first output driver, to allow the adjusted second driving capability to drive the effective voltage to reach a level having the same magnitude as a level of the effective voltage driven by the first source driver with the same variation of display data.

Abstract: A power voltage generating circuit includes an input capacitor including a first end connected to an input node, and a second end connected to a ground, an inductor, an input switching element connected between the input node and a first end of the inductor, a control switching element including a control electrode connected to a switching controller configured to apply a switching control signal, an input electrode connected to a resistor, and an output electrode connected to a second end of the inductor, a diode including a first electrode connected to the second end of the inductor, and a second electrode connected to an output node, and an output capacitor connected between the output node and the ground, wherein the input switching element is configured to be turned off when a short circuit of a load connected to the output node is detected in a monitoring period.

Abstract: A display driving circuit, a driving method thereof, and a display device are provided. The display driving circuit includes: a timing controller which is configured to acquire grayscale data of subpixels in a frame of display image row by row and output the grayscale data to the grayscale controller; a grayscale controller which is configured to receive grayscale data of each subpixel in each row of subpixels, and control at least a part of the plurality of reference grayscale voltage output terminals in the grayscale controller to output reference grayscale voltages according to the grayscale data of each subpixel in each row of subpixels; a source IC which is configured to generate a grayscale voltage according to the received reference grayscale voltages and input the grayscale voltage as a data voltage to a data line.

Abstract: A shift register and a method for driving the same, a gate driving circuit and a display device. The shift register includes: an input sub-circuit configured to provide a signal at the signal input terminal to the pull-up node under control of the first clock signal terminal; an output sub-circuit configured to provide a clock signal at the second clock signal terminal to the signal output terminal under control of the pull-up node; and a pull-down sub-circuit configured to provide a signal at the power supply terminal to the signal output terminal under control of the third clock signal terminal.

Abstract: A display driver includes a gamma correction data transmission unit that transmits a plurality of gamma correction data pieces one by one in each predetermined period. A brightness level indicated by a video signal is converted into a gradation voltage with a gamma characteristic based on the gamma correction data piece transmitted from the gamma correction data transmission unit.

Abstract: Provided is an active matrix substrate that includes gate lines (13G), source lines, pixel switching elements, a plurality of gate line driving circuits (11) that control potentials of the gate lines, in the display region, and control signal lines (15L1) that supply a control signal to the gate line driving circuits (11). Each of the gate line driving circuits (11) includes driving switching elements and a capacitor. At least part of the driving switching elements and the capacitor are arranged at positions closer to, not the gate line (13G) corresponding to the gate line driving circuit (11), but another gate line (13G).

Abstract: Only once every N horizontal scanning periods, correction processing for providing a correction voltage for correcting a characteristic of a drive transistor for driving a light-emitting element formed in a display device to data lines of the display device and display driving processing for sequentially providing, to the data lines of the display device, gradation voltages for one horizontal scanning line based on a video signal corresponding to each of N horizontal scanning lines are executed.

Abstract: A low voltage level shifter that is suitable for use with subthreshold logic. In one embodiment, the low voltage level shifter includes first and second input transistors coupled to first and second input nodes, respectively, that receive complementary low voltage input signals. A circuit is coupled to the first and second input transistors and to first and second output nodes that generate complementary high voltage output signals. The circuit is configured to transmit a first current to the second output node when the first input transistor is activated, wherein the first current is substantially equal to current drawn by the first input transistor when it is activated. The circuit is also configured to transmit a second current to the first output node when the second input transistor is activated, wherein the second current is substantially equal to current drawn by the second input transistor when it is activated.

Abstract: An input detection device includes: a plurality of drive electrodes each of which includes a first end and a second end; a first scanner circuit and a second scanner circuit which select the first ends of the plurality of drive electrodes; a third scanner circuit and a fourth scanner circuit which select the second ends of the plurality of drive electrodes; and a controller which supplies a first drive voltage to the first end of a first drive electrode and to the second end of a second drive electrode and supplies a second drive voltage different from the first drive voltage to the second end of the first drive electrode and to the first end of the second drive electrode via the first scanner circuit, the second scanner circuit, the third scanner circuit, and the fourth scanner circuit.

Abstract: A gamma correction digital-to-analog converter (DAC) includes a first DAC circuit, a second DAC circuit and a voltage generator. The first DAC circuit includes a plurality of first transistors and is configured to receive a plurality of first reference gamma voltages and 1 upper bits of k-bit digital data and generate a first gamma voltage based on the 1 upper bits of the k-bit digital data and the first reference gamma voltages. The second DAC circuit includes a plurality of second transistors and is configured to receive a plurality of second reference gamma voltages and m lower bits of the k-bit digital data and generate a second gamma voltage based on the m lower bits of the k-bit digital data and the second reference gamma voltages.

Abstract: In general, the subject matter can be embodied in methods, systems, and program products for using a display of a computing device as a light source. The computing device receives a first image that was captured by a camera of the computing device, determines a brightness of at least part of the first image, selects an intensity of a light source that is to be presented by the display of the computing device, the intensity of the light source being selected based on the determined brightness of the at least part of the image, presents the light source by the display of the computing device, the presented light source having the selected intensity, and receives a second image that is captured by the camera of the computing device while the computing device is presenting the light source on the display using the selected intensity.

Abstract: In an exemplary flat display apparatus and control circuit and method for controlling the flat display apparatus, the flat display apparatus includes a plurality of gate driving units, each of which controls the operation of a scan line in the flat display apparatus. The flat display apparatus provides a first gate high level voltage signal and a second gate high level voltage signal to the gate driving units such that the first and second gate high level voltage signals are used as voltage signals transmitted to corresponding scan lines. The first and second gate high level voltage signals respectively include a falling edge with a slope. Duration time of the falling edge of the first gate high level voltage signal is longer than that of the falling edge of the second gate high level voltage signal.

Abstract: The present invention discloses a liquid crystal display device, comprising a time sequence controller configured to receive external control signals, generate driving control signals based on the external control signals, and send respective driving control signals to the source driver and the gate driver. The time sequence controller comprises a logic signal generating module configured to generate a logic signal, which is used to switch off an interior analog circuit of the source driver when the liquid crystal display panel is in a drive-stopping state and to switch on the analog circuit when the liquid crystal display panel is in a driving state, a source driver and a gate driver configured to respectively generate driving signals based on the driving control signals and the logic signal and send the driving signals to the liquid crystal display panel, and a liquid crystal display panel configured to display images in accordance with the received driving signals.

Abstract: Only once every N horizontal scanning periods, correction processing for providing a correction voltage for correcting a characteristic of a drive transistor for driving a light-emitting element formed in a display device to data lines of the display device and display driving processing for sequentially providing, to the data lines of the display device, gradation voltages for one horizontal scanning line based, on a video signal corresponding to each of N horizontal scanning lines are executed.

Abstract: Provided is an active matrix substrate that includes gate lines (13G), source lines, pixel switching elements, a plurality of gate line driving circuits (11) that control potentials of the gate lines, in the display region, and control signal lines (15L1) that supply a control signal to the gate line driving circuits (11). Each of the gate line driving circuits (11) includes driving switching elements and a capacitor. At least part of the driving switching elements and the capacitor are arranged at positions closer to, not the gate line (13G) corresponding to the gate line driving circuit (11), but another gate line (13G).

Abstract: An image display device including a light-emitting element configured to emit light corresponding to a current flowing therethrough; a driving element that is connected to the light-emitting element and configured to control light emission of the light-emitting element; and a control unit configured to apply a reverse bias voltage to a first n-type driving element whose the threshold voltage determined at a specific time is equal to or higher than a positive predetermined voltage level for shifting the threshold voltage of the first n-type driving element in a negative direction, and not apply the reverse bias voltage to a second n-type driving element whose the threshold voltage determined at the specific time is lower than the positive predetermined voltage level for shifting the threshold voltage of the second n-type driving element in a positive direction when the light-emitting element does not emit light.

Abstract: A display device includes a display panel including a plurality of pixels respectively connected to a plurality of gate lines and to a plurality of data lines, a gate driving circuit configured to drive the plurality of gate lines, a data driving circuit configured to drive the plurality of data lines, a timing controller configured to provide a data signal to the data driving circuit, configured to control the gate driving circuit, and configured to output a voltage control signal, and a voltage generator configured to generate a plurality of reference voltages in response to the voltage control signal, wherein the data driving circuit is further configured to convert the data signal into a grayscale voltage based on the plurality of reference voltages, wherein a voltage level of each of the reference voltages is changed periodically within a range.

Abstract: Disclosed are a display apparatus and a control method thereof, the display apparatus including: a display unit which includes a plurality of pixels with an organic light emitting diode (OLED); a power supply which supplies power to the display unit; an image processor which processes an image signal in accordance with the plurality of pixels; and a controller which divides the frame into a plurality of sub-frames, assigns bit weights to each of the divided sub-frames, and controls the power supply to supply a voltage which is adjusted by the assigned bit weights in accordance with the sub-frames to the display unit.

Abstract: An electroluminescent (EL) display apparatus and method are provided. A display screen includes pixels. A pixel circuit of each of pixel includes, in part: a first switch transistor on a path through which current flows from a power line through a driving transistor to an EL device; a second switch transistor to supply an image signal to the driving transistor; and a third switch transistor for initially resetting the pixel circuit before the second switch transistor supplies the image signal. A gate terminal of the first switch transistor is connected to a first gate driver circuit. Gate terminals of the second and third switch transistors are connected to a second gate driver circuit, which includes a second gate signal line connected to both the gate terminal of the second switch transistor of a Nth row and the gate terminal of the third switch transistor of a (N+1)th row.

Abstract: An electroluminescent (EL) display apparatus and corresponding method of control are provided. A display screen includes pixels arranged in a matrix. A pixel circuit of each of the pixels includes, in part: a second switch transistor to supply, to a driving transistor, an image signal; and a third switch transistor for initially resetting the pixel circuit before the second switch transistor supplies the image signal. A gate terminal of the second switch transistor and a gate terminal of the third switch transistor are connected to a second gate driver circuit. The second gate driver circuit includes a first gate driver circuit and a second gate driver circuit. The second gate driver circuit includes a second gate signal line connected to both the gate terminal of the second switch transistor of a Nth row and the gate terminal of the third switch transistor of a (N+1)th row.

Abstract: In a display device that has self light-emitting type display elements and that adopts time-division driving, power consumption is reduced over the conventional one. Each of emission lines is connected to the gate terminals of light-emission control transistors provided for organic EL elements of different light-emitting colors in three pixel circuits arranged side by side in an extension direction of scanning signal lines. When there is no change in image content throughout a period longer than or equal to a predetermined period during a time-division driving mode, an operating mode is switched to a pause driving mode. During the pause driving mode, emission drivers bring only first emission lines into a selected state, by which a still image with a ? resolution of an image displayed during the time-division driving mode is displayed on a display unit. During a pause period, peripheral drivers go into a pause state.

Abstract: A control device executes a program including the steps of: when an unintended black image is detected, notifying a target value of brightness of a backlight and a correction amount of brightness of an image immediately before the black image is detected, until a predetermined time elapses; correcting the image based on the notified correction amount of the brightness of the image; causing a liquid crystal panel to display the corrected image; and controlling the backlight based on the notified target value of the brightness of the backlight.

Abstract: A display system includes a switchable display screen comprising a first transparent substrate, a first transparent conductive layer disposed upon the first transparent substrate, a second transparent substrate, and a second transparent conductive layer disposed upon the second transparent substrate. The display screen further includes a polymer-stabilized cholesteric texture layer and spacer elements disposed between and in contact with the first transparent conductive layer and the second conductive layer. The display screen comprises a plurality of addressable regions, each region capable of being switched from a transparent state to a diffuse state.

Abstract: A method of driving a display panel includes respectively outputting first to j-th, where j is a natural number, gate signals to first to j-th gate lines disposed on a first area of the display panel during a load period when an image is displayed on the display panel due to an output of a data signal to the display panel, adjusting a blank gate voltage during a blank period between load periods to generate an adjusted blank gate voltage, generating a blank gate signal based on the adjusted blank gate voltage, and outputting the blank gate signal. Thus, display quality of a display apparatus may be improved.

Abstract: A display panel includes a control circuit and a pixel structure. The control circuit selectively provides a data signal or a first reference voltage signal. The pixel structure includes a capacitor, a first, a second and a third switch unit. For the first switch unit, a first and a second terminal are coupled to two the capacitor in series, and a control terminal receives a control signal. For the second switch unit, a first terminal is coupled to the second terminal of the first switch unit, and the control terminal receives a first scan signal. For the third switch unit, a first terminal receives the data or first reference voltage signal, a second terminal is coupled to the second terminal of the second switch unit and a light emitting element, and the control terminal is coupled to the second terminal of the first switch unit.

Abstract: A driving circuit of an active matrix/organic light emitting diode (AMOLED) includes a first semiconductor controllable switch, a second semiconductor controllable switch, an energy-storage capacitor, an organic light emitting diode, and a sequential control unit that divides a driving time of one frame of the organic light emitting diode into driving times of N subframes. An output end of the second semiconductor controllable switch is coupled to an anode of the organic light emitting diode, a source electrode of the first semiconductor controllable switch receives a data driving signal of the AMOLED, a gate electrode of the first semiconductor controllable switch receives a scan driving signal of the AMOLED, a drain electrode of the AMOLED is connected with a gate electrode of the second semiconductor controllable switch, and the energy-storage capacitor is connected in series between a source electrode and the gate electrode of the second semiconductor controllable switch.

Abstract: A transistor connected to a power source for driving a light-emitting element driving transistor and a transistor setting to a predetermined voltage a source voltage of the light-emitting element driving transistor are commonly controlled by a control signal that takes one of three levels.

Abstract: An image pixel control method includes: performing an initialization process comprising initializing the light receiving unit; performing an excess value sampling process comprising sampling a voltage level corresponding to a quantity of photoelectrons in excess of a photoelectron accommodation capacity of the light receiving unit; performing an initialization level comprising sampling process sampling a voltage level applied to the light receiving unit when the light receiving unit is initialized; and performing a data level sampling process comprising sampling a voltage level corresponding to a quantity of photoelectrons accommodated in the light receiving unit.

Abstract: A driving apparatus for a display device includes: a signal controller that generates a pre-clock signal, a charge sharing control signal and a scanning start signal; a clock signal generator that generates a clock signal swinging between a first voltage and a second voltage based on the pre-clock signal and the charge sharing control signal; and a gate driver that generates gate signals based on the scanning start signal and the clock signal, where the clock signal generator includes: a voltage generator that generates a third voltage; and a clock generator that receives one of the first to third voltages in response to the pre-clock signal and the charge sharing control signal, and outputs an output signal based on the one of the first to third voltages as the clock signal, where the third voltage is lower than the first voltage and higher than the second voltage.

Abstract: An electrophoretic display apparatus and a method of driving the same. Gradation display using pulse amplitude modulation (PAM) may be achieved using a gate pulse having a pulse width and a voltage level that are set not to fully charge a parasitic capacitance component of a switching transistor included in each pixel.

Abstract: A semiconductor integrated circuit and corresponding display panel and electronic apparatus. A pixel element includes a self-luminous element and a drive transistor connected to a power supply line. In an emission period of the self-luminous element, an active voltage and an intermediate voltage are sequentially applied between the power supply line and a potential line with a pulse-shaped waveform such that a predetermined luminance duration is obtained in the emission period. In a non-emission period of the self-luminous element, an off-state voltage is applied between the power supply line and the potential line so as to maintain the self-luminous element in a non-emission state.

Abstract: A driver device (10) of the present invention includes a scan line driving circuit (12) which carries out a first scan in which (i) the scan line driving circuit (12) starts to supply a first scan signal, which has an intermediate electric potential between a voltage of a low level in a time period during which an nth scan line (151) is not scanned and a voltage of a high level, to an (n+m)th scan line (151) during a scan period during which the nth scan line (151) is being scanned and (ii) the scan line driving circuit (12) stops supplying the first scan signal to the (n+m)th scan line (151) when scanning of the nth scan line (151) is completed.

Abstract: A transistor connected to a power source for driving a light-emitting element driving transistor and a transistor setting to a predetermined voltage a source voltage of the light-emitting element driving transistor are commonly controlled by a control signal that takes one of three levels.

Abstract: A a stereoscopic image display includes: a liquid crystal display panel including a 3D control line to which a 3D control voltage is applied, and a plurality of pixels, each of the pixels being divided into a main pixel portion and an active black stripe; and a 3D control voltage generation circuit that supplies a 3D control voltage to the 3D control line and discharges a voltage of the active black stripe down to a black gray voltage.

Abstract: A pixel circuit includes a first sub-pixel and a second sub-pixel. The first sub-pixel is coupled to a scan line and a data line, so as to determine whether to be enabled according to a first scan signal transmitted on the scan line, and whether to be driven according to a data signal transmitted on the data line. The second sub-pixel is coupled to the scan line, so as to determine whether to be enabled according to the first scan signal. The data signal is in a first state when the first scan signal is in a pre-charged period. The data signal is in a second state during a time interval after the pre-charged period is over and before the first scan signal enters a turn-on period. Voltage polarities of the first state and the second state are opposite. The pixel design can improve color shift and frame flicker.

Abstract: A system for driving an array of display elements includes a supply line, at least one capacitor, a plurality of drive lines and overdrive lines, a plurality of switches and a controller configured to activate and deactivate subsets of the switches in order to selectively couple the at least one capacitor to the drive lines and to the overdrive lines. A method for generating an overdrive voltage includes activating and deactivating a plurality of switches to couple a drive voltage line and/or an overdrive voltage line to at least one capacitor.

Abstract: A display device includes: a plurality of pixels; a data driver connected to the plurality of pixels by a plurality of data lines and applying data signals to the plurality of pixels; a scan driver connected to the plurality of pixels by a plurality of scan lines and applying scan signals to the plurality of pixels for the data signals to be applied to the plurality of pixels; a boost driver connected to the plurality of pixels by a plurality of boost lines and applying boost signals, boosting the pixel voltage charged to the plurality of pixels by the data signals, to the plurality of pixels; and a boost voltage maintaining unit applying a restoring voltage restoring the voltage in the plurality of boost lines by the scan signal to the plurality of boost lines. The voltage generated in the boost line by the coupling may be quickly restored and the crosstalk may be minimized, thereby improving the image quality.

Abstract: A negative level shifter includes a voltage selection unit and at least one voltage level conversion unit. The voltage selection unit may apply a first voltage to a first node and a second voltage to a second node if the control signal CON is the first value and apply a third voltage to the first node and a fourth voltage to the second node if the control signal CON is the second value. The at least one voltage level conversion unit may be connected to the first node and the second node and convert a voltage level of an input signal by using a voltage of the first node and a voltage of the second node.

Abstract: An imaging device that can not only reduce noises including shading but also read out a pixel at high speed, a method for controlling the imaging device, and a camera using the imaging device are provided. In a 3-transistor-driven pixel circuit 11, the drain of a reset transistor 113 is connected to a drive signal line DRNL (n), and the drain of an amplifier transistor 114 is connected to a source voltage VDD. A row drive circuit 12a quickly decreases the voltage level applied to the drive signal line DRNL (n) from a high-level voltage VH to a lowest level voltage VLL, then increases it from the lowest level voltage VLL to a low-level voltage VL, and then gradually returns it to the high-level voltage VH.

Abstract: An exemplary driving method is adapted for a bistable display device including a pixel array. The pixel array includes a plurality of first pixels and a plurality of second pixels arranged in a predetermined manner. The driving method includes the following steps of: during a first time period, providing the first pixels with a first pixel voltage for black insertion and providing the second pixels with a second pixel voltage different from the first pixel voltage; during a second time period following the first time period, providing the first pixels with the second pixel voltage for white insertion and maintaining the second pixels provided with the second pixel voltage for white insertion; and during a third time period following the second time period, initiating the first pixels to display a gray scale image and providing the second pixels with the first pixel voltage for black insertion.

Abstract: The liquid crystal display device includes: first and second substrates disposed facing each other via a liquid crystal layer, each substrate having a plurality of pixels arranged thereon in matrix form; a first electrode formed for each pixel on the first substrate side; a second electrode formed for each pixel on the first or second substrate side; and the liquid crystal layer being driven by a liquid crystal drive voltage applied between the first and second electrodes; wherein an inequation of VLmin?VLmax<Vmax is satisfied, where VLmin is a liquid crystal drive voltage applied to the pixel to produce minimum brightness, VLmax is a liquid crystal drive voltage applied to the pixel to produce maximum brightness, and Vmax is a maximum liquid crystal drive voltage applied to the pixel.

Abstract: A transistor connected to a power source for driving a light-emitting element driving transistor and a transistor setting to a predetermined voltage a source voltage of the light-emitting element driving transistor are commonly controlled by a control signal that takes one of three levels.

Abstract: A DC-DC converter generates a first power and a second power for driving pixels in an organic light emitting display, such that the voltages of the first power and the second power are substantially independent of the voltage from a power supply or a battery. A voltage detector detects the voltage from the power supply, and a booster circuit and an inverter circuit respectively boost and invert the voltage from the power supply to generate and output the first and the second powers, respectively, for the pixels. A PWM controller controls the booster circuit and the inverter circuit to control voltages of the first power and the second power. The booster circuit is adapted to reduce the voltage from the power supply to be lower than the voltage of the first power when the voltage from the power supply detected by the voltage detector is higher than a reference voltage.

Abstract: Updating an image of a display is provided by scanning rows of sub-pixels of the display by applying voltages to pixel electrodes of adjacent sub-pixels in different lines such that polarity changes in opposite directions can occur in two sub-pixels that are adjacent to a particular sub-pixel. In one example, a positive-polarity voltage can be applied to one sub-pixel that is adjacent to a particular sub-pixel, causing a swing in the polarity of the sub-pixel from negative to positive. A negative-polarity voltage can be applied to another sub-pixel that is adjacent to the particular sub-pixel, swinging the polarity of the pixel electrode from positive to negative. A change in brightness of the particular sub-pixel that may result from a voltage swing one direction in an adjacent sub-pixel may be offset by a change in brightness of the particular sub-pixel that may result from a voltage swing in another adjacent sub-pixel.