Abstract: A liquid crystal display having adaptive pulse shaping control mechanism includes a first gate driver for providing a first gate signal based on a first modulation voltage, a second gate driver for providing a second gate signal based on a second modulation voltage, a first pixel array unit for illustrating image according to the first gate signal, a second pixel array unit for illustrating image according to the second gate signal, a timing controller for performing a pulse compare operation over the first and second gate signals so as to generate a first shaping control signal and a second shaping control signal, a first gate pulse modulation unit for providing the first modulation voltage according to the first shaping control signal, and a second gate pulse modulation unit for providing the second modulation voltage according to the second shaping control signal.

Abstract: A display device including various portions, circuits and other arrangements for outputting various pulses and triggers, for controlling forward shift and backward shift operations.

Abstract: Disclosed herein is a display apparatus, including, a pixel section, a plurality of scanning lines, a plurality of signal lines, and a driving circuit.

Abstract: A pixel includes an organic light emitting diode (OLED), a driving transistor for controlling a current supplied to the OLED, a first transistor for transmitting a data signal to the driving transistor, and a capacitor coupled between the driving transistor and the first transistor. A driving method of the pixel includes initializing a gate voltage of the driving transistor, compensating a threshold voltage of the driving transistor, and transmitting a data signal to the driving transistor through the capacitor. A period for compensating the threshold voltage is longer than a period for transmitting the data signal to the driving transistor. Sufficient time to compensate the threshold voltage of the driving transistor of the pixel may be obtained under high resolution and high frequency driving to realize a display device of high image quality.

Abstract: A driving device includes a storage unit configured to store waveform data of driving signals whose phase is shifted by ?/2 from a sinusoidal wave satisfying a frequency f1=m/n×f0 (m, n are natural numbers, and m?n) where a resonance frequency of. an actuator is f0, wherein the; driving signals excite the actuator for an m number of times and stop exciting the actuator at a point other than a center point of amplitude; and a processor programmed to execute a process including reading the waveform data stored in the storage unit and outputting, to the actuator, the driving signals corresponding to the waveform data that has been read.

Abstract: A distance (d1) from an edge of a first region (R) at places (D) where branch electrodes (4b) extending, which branch off from an electrode line (4a) of a second source/drain electrode (4), start to overlap with a first region (R) to the electrode line (4a) is 5 ?m or more. This realizes a TFT including a comb-shaped source/drain structure that enables easy repair of a source-drain leakage.

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 drive circuit includes: an input-side inverter circuit and an output-side inverter circuit connected to each other in series and inserted between a high voltage line and a low voltage line. The output-side inverter circuit includes a CMOS transistor having a first gate and a second gate, in which a drain is connected to the high voltage line side and a source is connected to an output side of the output-side inverter circuit. The output-side inverter circuit further includes a MOS transistor in which a drain is connected to the low voltage line side and a source is connected to the output side of the output-side inverter circuit. The output-side inverter circuit further includes a correction circuit correcting a voltage of one or both of the two gates of the CMOS transistor.

Abstract: An integrated circuit device includes: a driving voltage output unit that outputs a driving voltage supplied to a segment electrode of an electro-optical panel; a display data storage unit that stores display data; and a driving waveform information output unit that outputs driving waveform information when a display state of the segment electrode is changed from a first display state corresponding to first display data to a second display state corresponding to second display data, wherein the driving voltage output unit outputs the driving voltage specified by the first display data and the second display data from the display data storage unit, and the driving waveform information from the driving waveform information output unit.

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 display device includes a frame frequency conversion circuit configured to convert a frame frequency of an input display data and a timing control circuit configured to control a first drive circuit and a second drive circuit based on a frame frequency after the conversion. The display device generates at least two display areas on the display panel. The at least two display areas display images at different frame frequencies. The display device further includes a switch unit configured to display an image at the frame frequency before the conversion at one of the at least two display areas and configured to display an image at the frame frequency after the conversion at another one of the at least two display areas. At least one of a boundary position and a size of the at least two display areas varies with time.

Abstract: A scan driving apparatus includes a plurality of sequentially arranged scan driving blocks, each including: a first node configured to receive a first clock signal; a second node configured to receive an input signal according to a second clock signal input; a first transistor having a gate electrode coupled to the first node, a first electrode configured to receive a power source voltage, and a second electrode coupled to an output terminal; and a second transistor having a gate electrode coupled to the second node, a first electrode for receiving a third clock signal, and a second electrode coupled to the output terminal. Each scan driving block is configured to receive the first, second, and third clock signals as a corresponding three clock signals among four clock signals sequentially shifted by a first period, and to output the third clock signal by being synchronized with the input signal.

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: An LCD device is discussed in which a level shifter generates two switching signals, and transmits the generated signals to a gate driver of a liquid crystal display panel by the use of one voltage signal transmitted from a timing controller. The LCD device according to an embodiment includes a liquid crystal display panel in which a gate driver for alternately driving two transistors is formed; a data driver which drives data lines of the liquid crystal display panel; a timing controller which generates one voltage signal for switching the two transistors, and outputs the one voltage signal; and a level shifter which generates two of first and second switching signals to switch the two transistors by using the one voltage signal, and outputs the generated switching signals to the gate driver.

Abstract: In one or more example embodiments, a display controller includes a stable pixel writing period in one horizontal period in a display device, the stable pixel writing period being a period during which a voltage outputted from a gate driver is at a high level. The display controller also includes a first stable pixel writing period determination circuit which determines, by using a reference signal independent from the frame rate in the display device, the stable pixel writing period during which the voltage is at the high level. Thus, the display controller can be provided in which, regardless of whether and how the frame rate is changed, the stable pixel writing period can be of a target length.

Abstract: A display panel has an amorphous silicon gate driver. A variable capacitor is formed at one end of a gate line to prevent the deterioration of display quality due to high temperature noise. A predetermined level of capacitance is provided to the variable capacitor to the reduce ripple of gate voltage and eliminate the high temperature noise.

Abstract: A display driving system includes a timing control section having an LVDS receiving unit for receiving data signals, a data processing unit for temporarily storing the data signals, processing the data signals and outputting processed data signals, a timing generation unit for generating clock signals and timing control signals, and a transmission unit for transmitting the data signals; and a panel driving section having row driving units for sequentially emitting gate signals toward a display panel and column driving units for receiving the signals transmitted through signal lines from the transmission unit and supplying the received signals to the display panel. In the timing control section, the transmission unit has driving parts which embed the clock signals between the data signals at the same level and generate and output single level transmission data.

Abstract: An LCD device is discussed which includes: a plurality of gate lines and a plurality of data lines arranged on a substrate; a data driver configured to apply data voltages the data lines; a gamma generator configured to apply a plurality of gamma voltages to the data driver, wherein the data line receives the data voltage which has an inverted polarity to those of data voltages on the adjacent data lines thereto, is inverted n times in polarity for every frame, and is over-driven for the gate lines opposite to time points of the polarity inversions.

Abstract: Embodiments of the present invention comprise systems, methods and devices for display-mode-dependent adjustment of image code values.

Abstract: The present invention provides a LCD device including: a timing control unit; an oscillator which is included in the timing control unit and generates a clock frequency; a frequency divider which is included in the timing control unit and reduces the clock frequency supplied from the oscillator by dividing the clock frequency by at least 2; and a mode selection part which is included in the timing control unit and changes at least one driving mode of internal logic circuits by using the divided clock frequency supplied from the frequency divider.

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: Artifacts in a specific pattern due to a time difference in a VTDC driving scheme may be prevented. A display device includes: a display including a first pixel circuit, a second pixel circuit, and a pixel group having a first light emitting element, a second light emitting element, a third light emitting element and a fourth light emitting element arranged in a first direction; and a light emission driver generating a first sub-light-emission control signal for controlling emission of the first light emitting element and a second sub-light-emission control signal for controlling emission of the second light emitting element in a first subframe, and generating a third sub-light-emission control signal for controlling emission of the third light emitting element and a fourth sub-light-emission control signal for controlling emission of the fourth light emitting element in a second subframe.

Abstract: A driving apparatus includes: a plurality of shift registers disposed at a plurality of stages, respectively, where each of the shift registers includes: a first driver which generates an intermediate output signal and a first output signal based on a first signal, where the first driver includes: an input signal terminal, to which the first signal is applied; and an inversion input signal terminal, to which a second signal, which is an inverted signal of the first signal, is applied; and a second driver which receives the first output signal and generates a second driver output signal having a pulse voltage at a first level based on the first output signal and a pulse voltage at a second level based on a first clock signal or a second clock signal.

Abstract: A display apparatus includes a display panel including a display area in which gate lines and data lines are disposed to display an image and a peripheral area which is disposed around the display area and includes fan-out lines having different lengths, and a driving part configured to output driving signals having different levels to channels respectively connected to the fan-out lines according to the different lengths of the fan-out lines.

Abstract: A drive device of the present invention includes a VCOM selection circuit (122) for switching, before a display panel (102) is turned off, an electric potential of a counter electrode COM of each of pixels P from a VCOM1 to a VCOM2 which causes an electric potential of a drain electrode of each of the pixel P to be identical to the electric potential of the counter electrode COM after the display panel (102) is turned off.

Abstract: An embodiment of the present invention switches, in a display driving circuit of a liquid crystal display device which carries out CC driving, between a two-line reversal driving mode in which a polarity of a data signal supplied to a source line is reversed every two horizontal scanning periods and a one-line reversal driving mode in which a polarity of a data signal supplied to a source line is reversed every one horizontal scanning period. In at least one example embodiment, a polarity signal reverses its polarity every two horizontal scanning periods in the two-line reversal driving mode, and reverses its polarity every one horizontal scanning period in the one-line reversal driving mode.

Abstract: A timing controller includes a receiver, an internal clock generator, a first frequency converter, a first selector and a control signal generator. The receiver receives an image signal and a main clock signal having a first spread spectrum frequency from an external system, converts the main clock signal to a converted main clock signal and the image signal to a first converted image signal, and outputs the converted main clock signal as a first clock signal having a plurality of frequencies. The internal clock generator multiplies the frequencies of the first clock signal and generates a second clock signal having a frequency band within the multiplied frequencies of the first clock signal. The first frequency converter converts the second clock signal to a third clock signal having a second spread spectrum frequency.

Abstract: A liquid crystal display having adaptive pulse shaping control mechanism includes a first gate driver for providing a first gate signal based on a first modulation voltage, a second gate driver for providing a second gate signal based on a second modulation voltage, a first pixel array unit for illustrating image according to the first gate signal, a second pixel array unit for illustrating image according to the second gate signal, a timing controller for performing a pulse compare operation over the first and second gate signals so as to generate a first shaping control signal and a second shaping control signal, a first gate pulse modulation unit for providing the first modulation voltage according to the first shaping control signal, and a second gate pulse modulation unit for providing the second modulation voltage according to the second shaping control signal.

Abstract: Embodiments of a device, system, method and other techniques are described for improved display calibration. An apparatus for display calibration may comprise, for example an optical waveguide comprising an entrance portion and an exit portion at different locations on a base portion of the apparatus, the optical waveguide to guide light output from a display of the apparatus arranged in a lid portion of the apparatus to a camera arranged in the lid portion of the apparatus and calibration logic at least a portion of which is in hardware, the calibration logic to measure one or more color attributes of the light output from the display and to calibrate one or more parameters of the display based on the measured color attributes. Other embodiments are described.

Abstract: An image display device employs an interface protocol wherein integrated image plus control data is transmitted from a signal controller circuit to each of a plurality of master data driving circuits. The integrated image plus control data includes display control data as well as image-defining data. The signal controller circuit determines which of a plurality of data driving circuits is to function as a master data driving chip and which as a slave data driving chip. The signal controller circuit directly transmits respective integrated image plus control data signals to corresponding ones of the master data driving chips. Each master data driving chip then forwards part of the received integrated image plus control signal to its corresponding slave data driving chip.

Abstract: Provided is a display device capable of switching a refresh rate while suppressing deterioration in display quality and degradation in liquid crystal. In the case of switching the refresh rate from 60 Hz to 7.5 Hz, a transition period for gradually changing the refresh rate from 60 Hz to 7.5 Hz is provided between a 60-Hz period and a 7.5-Hz period. This transition period is configured by sequentially arraying a 30-Hz period, a 20-Hz period, a 15-Hz period, a 12-Hz period and a 10-Hz period from a start point of the transition period. Hence the refresh rate gradually changes from 60 Hz to 7.5 Hz sequentially through 30 Hz, 20 Hz, 15 Hz, 12 Hz and 10 Hz. The number of positive-polarity frames and the number of negative-polarity frames are respectively 20 in the whole of the transition period, and are equal to each other.

Abstract: A display device includes display elements two-dimensionally disposed in a matrix; scanning lines, initialization control lines, and display control lines extending in a first direction; data lines extending in a second direction different from the first direction; and a scanning drive circuit. The scanning drive circuit generates signals based on an input pulse, at least some of the generated signals controlling the display state of the display elements via the display control lines. The duration of the display state of the display elements may be variably changed by changing the width of the input pulse.

Abstract: A method of driving a bi-stable chiral splay nematic mode liquid crystal display device including first and second substrates, a liquid crystal layer between the first and second substrates, first and second reset electrodes on one of inner surfaces of the first and second substrates, a pixel electrode on the inner surface of the first substrate and a common electrode on the inner surface of the second substrate includes: applying a data voltage and a common voltage to the pixel electrode and the common electrode, respectively, such that a vertical electric field is generated and the liquid crystal layer transitions from a splay state to a ?-twist state during a writing period; and floating the pixel electrode and the common electrode such that the liquid crystal layer keeps the ?-twist state and displays a present image during a memory period.

Abstract: Embodiments of the present invention comprise systems, methods and devices for increasing the perceived brightness of an image. In some embodiments this increase compensates for a decrease in display light source illumination.

Abstract: A shift register for an LCD display includes N shift register units. Each shift register unit outputs a shift signal. An Nth shift register unit includes a waveform-shaping unit electrically coupled to an shift signal output terminal of the Nth register to perform a waveform-shaping operation on the Nth shift signal according to the (N+1)th shift signal output by an (N+1)th shift register, to reduce the feed-through effect which causes display flicker.

Abstract: A method of driving an information display panel in which: at least two types of display media composed of particle groups containing chargeable particles are sealed between opposed two substrates, at least one substrate being transparent; a voltage is applied across a pair of opposed pixel electrodes formed such that conductive films provided to the respective substrates face each other to move the display media, thereby displaying an information image, including: decreasing or increasing a charge of the particles for a particular charge equilibrium according to a state of charge of the particles.

Abstract: A liquid crystal display includes liquid crystal elements in which a liquid crystal layer is sandwiched by a first electrode and a second electrode, a driving circuit configured to alternately apply higher and lower voltages than a predetermined voltage to the first electrode, and, at the same time, to apply the predetermined voltage to the second electrode, and a control circuit configured to compare a first current with a second current, the first current being obtained by excluding an instantaneous current due to a related higher voltage from currents flowing through the second electrode after the higher voltage is applied to the first electrode, and the second current being obtained by excluding an instantaneous current due to a related lower voltage from currents flowing through the second electrode after the lower voltage is applied to the first electrode, and to control the predetermined voltage based on the comparison result.

Abstract: In a period Tin, p-th input image data (p is a positive integer) and (p+1)th input image data are input to a liquid crystal display device. In a period T, i-th original image data (i is a positive integer) and (i+1)th original image data are generated based on the input image data. J number of sub-images (J is an integer equal to or more than 3) are generated based on the i-th original image data. In the period T, the J number of sub-images are sequentially displayed. At least one of the i-th original image data and the (i+1)th original image data is in an intermediate state between the p-th input image data and the (p+1)th input image data. Each of the sub-images exhibits one of first brightness and second brightness. At least one sub-image among the J number of sub-images is different from the other sub-images.

Abstract: An image display device having improved image retention capability by analyzing the mechanism behind the creation of an unwanted electric field applied to an element after a power supply is turned off, and devising a drive method and so forth for compensating for the same, is provided. Electrophoretic particles contain three types of charged particles, C (cyan), M (magenta), and Y (yellow) that are mutually different in color and threshold voltage for starting electrophoresis. When the threshold voltages of C (cyan), M (magenta) and Y (yellow) are respectively Vth3, Vth2, and Vth3, these satisfy the relationship |Vth3|<|Vth2|<|Vth1|. Further, a voltage application unit applies a voltage (VE) different from a reference potential during the final period of image update period. The voltage (VE) is a compensation voltage that suppresses the movement of charged particles.

Abstract: A display device includes a pixel, a data line, a scan line, a data driver, and a scan driver. The pixel is configured to display an image. The data line is configured to transmit data voltages to the pixel. The scan line is configured to transmit a scan signal to the pixel. The data driver is configured to: float the data line during a first period of a frame, apply, after the first period, a first data voltage to the data line during a second period of the frame, and apply, after the second period, a voltage waveform to the data line that varies the applied voltage from the first data voltage to a target voltage during a third period of the frame. The scan driver is configured to selectively apply the scan signal to the scan line.

Abstract: A display driving method including the following steps is provided. A common voltage is provided to define a reference voltage of a display. The reference voltage is sequentially switched between a plurality of AC voltage swings, between a plurality of DC voltage levels, or between one or more AC voltage swings and one or more DC voltage levels. Each of the plurality of AC voltage swings is provided for a time length of one or more frames. The step of providing the common voltage is repeated one or more times. A display driving circuit using the same is also provided.

Abstract: The light source device includes a first light source component, a fluorescent component, a first illuminance homogenizer, and a relay optical system. The first light source component emits laser light. The fluorescent component has a phosphor. The phosphor is excited by laser light. The first illuminance homogenizer converts the laser light into laser light showing a spatially uniform light intensity distribution. The first illuminance homogenizer is disposed between the first light source component and the fluorescent component. The relay optical system guides laser light emitted from the first illuminance homogenizer to the fluorescent component. The relay optical system is disposed between the first illuminance homogenizer and the fluorescent component.

Abstract: A method of controlling an electro-optical device includes controlling a driving section such that, when an image is rewritten from a first image displayed in a first gradation to a second image including a background image portion to be displayed in the first gradation and a main image portion to be displayed in a second gradation, the same potential as a counter electrode is supplied to a pixel in the background image portion, and a potential corresponding to the second gradation is supplied to a pixel in the main image portion. The driving section is controlled such that at least one of the magnitude and application time of a voltage applied between the pixel electrode and the counter electrode is smaller in a pixel corresponding to an edge portion in the main image portion than in a pixel corresponding to a non-edge portion in the main image portion.

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: Provided are a display driving circuit, a display device and a driving method thereof, which are capable of avoiding an influence of a feed through effect on a voltage difference between a pixel electrode and a common electrode and thus improving the quality of a displayed picture. The display driving circuit comprises a gate driving unit for controlling a thin film transistor TFT to be turned on, a source driving unit for outputting a signal to a source of the TFT, and a circuit unit for supplying a power to a common electrode, the circuit unit outputs a first voltage to the common electrode when the TFT is in a turn-on state, and the circuit unit outputs a second voltage to the common electrode when the TFT is in a turn-off state, wherein the first voltage is a voltage different from the second voltage.

Abstract: In one aspect of the invention, a method of driving an OLED display includes providing scan signals and data signals and applying the scan signals to scan lines and the data signals to the data lines, respectively. Each scan signal is characterized with a waveform having a compensation duration and a scan duration immediately following the compensation duration. The waveform has a first voltage and a second voltage periodically and alternately varied from one another defining a period in the compensation duration, and has the first voltage in the scan duration. The period is equal to the scan duration but shorter than the compensation duration. As such, during the compensation duration of a scan signal, pixels of a corresponding pixel row are charged for compensation, and during the scan duration, the data signals are written into the pixels of the corresponding pixel row for driving the OLEDs thereof.

Abstract: A pixel, a display device using the pixel and a method of driving the display device are provided. The pixel may include an organic light emitting diode, a driving circuit for generating and transmitting driving current depending on data signals to the organic light emitting diode, and at least one switch connected between a power wire for applying a first voltage to the organic light emitting diode and a data line for transmitting the data signals. The at least one switch may include a compensating circuit for electronically connecting the power wire to the data line for a predetermined period to transmit the first voltage through the data line.

Abstract: A control unit performs calibration when a determining unit determines that an absence condition of an operator is satisfied. Calibration is performed to a whole or part of brightness, a white point (gain), gamma (gradation), and primary colors (red, blue, and green colors). The control unit stores a correction amount by calibration in a storage unit, measures the (corrected) calibrated brightness or color tone by using an optical sensor, and stores the measured final measurement result in the storage unit as a corrected measurement value. After performing calibration or when the determining unit determines that a presence condition of the operator is satisfied, a profile generating unit generates color space information.

Abstract: A 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 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. By using such driving method, the difference in voltage between the liquid crystal capacitor and a common voltage is reduced from charge sharing for improving a color washout effect of the LCD panel.

Abstract: A display device includes an organic EL display unit including plural pixels, a variable-voltage source which supplies a positive electrode supply potential and a negative electrode supply potential to the display organic EL display unit, and an arithmetic circuit which measures an anode potential and a cathode potential of a representative pixel. The variable-voltage source regulates the positive electrode supply potential with respect to the negative electrode supply potential, according to at least the potential difference between the negative electrode supply potential of the variable-voltage source and the cathode potential of the representative pixel, and supply the regulated positive electrode supply potential to the organic EL display unit.