Abstract: An information display system is a head-worn information display system, and includes at least a display panel. A display mode of information displayed on the display panel is switched automatically according to an active state of a user using the information display system. Accordingly, it is possible to provide an information display system which can display information appropriate for the active state of the user.

Abstract: A surface-mounted contour-fitting electronic visual display system for use on vehicles and other objects, comprising one or more flexible contour-fitting light-emitting elements that can be arranged and configured to be mountable on surfaces of vehicles and other objects, a system controller which connects to said one or more light-emitting elements by electronic wiring, cables or other suitable means, and a power source connected to said controller to power the system and said one or more light-emitting elements. The system can be used on various types of vehicles such as automobiles, buses, airplanes, trains and motorcycles, for purposes such as aesthetics, signaling or displaying instructional or informational messages and advertising. The system is also useful in military applications including camouflaging and other forms of visual disguise.

Abstract: A programmable power supply provides multiple output channels that may be independently driven to vary the frequency and duty cycle of each channel. The power supply includes the capability of receiving a program via a program interface on the power supply. The power supply also includes the capability of reading a program from a device that is plugged into the power supply's output connector. In this manner, a device to be powered (such as an EL panel sign with multiple segments) may contain a program that specifies how the segments are to be driven. This allows the power supply to dynamically reconfigure itself for many different signs by simply plugging a different sign into its output connector. The preferred embodiments also provide an improved connector system for EL panel signs, and includes output compensation to automatically compensate for degradation in an EL panel over time.

Abstract: The present invention relates to a plasma display apparatus and driving method thereof. The plasma display apparatus according to an embodiment of the present invention comprises a plasma display panel comprising a scan electrode and a sustain electrode, and a driver that controls one or more of sustain pulses supplied to the scan electrode and one or more of sustain pulses supplied to the sustain electrode to be overlapped with each other.

Abstract: A plasma display apparatus and a driving method thereof are provided. A plasma display apparatus according to an embodiment of the present invention comprises a plasma display panel comprising an address electrode, a data drive integrated circuit (IC), connected to the address electrode, for supplying a voltage of a data signal supplied from a data voltage source and a bias voltage supplied from a bias voltage source to the address electrode, a bias voltage supply control switch for controlling the bias voltage supplied by the data drive IC, and a data voltage supply control switch for controlling the voltage of the data signal supplied by the data drive IC.

Abstract: A picture quality when reducing the brightness or the contrast of the picture on a plasma panel shall be improved. For this purpose there is provided a driving apparatus including brightness/contrast control means for receiving video input data for modifying the video levels of the video input data in accordance with external adjustment data and for outputting modified video data. First power measurement means measure a power level of the modified video data and supply a first power level. Second power measurement means measure a power level of the video input data and supply a second power level. Generator means generate a third power level comprised between the first power level and the second power level or equal to the larger one to data processing means. The data processing means calculate the maximum number of sustain pulses per frame applicable to the modified video data on the basis of the third power level and control the display of the modified video data on the plasma display panel.

Abstract: A method for reducing dynamic false contour on a plasma display is provided. The steps of the method are as follows. Firstly, determine a grayscale phase of a current pixel. And then change the grayscale phase of the current pixel if any one of the N pixels before the current pixel has the same grayscale value and the same grayscale phase as those of the current pixel, wherein N is an integer equal to or greater than 2. Finally, output the current pixel.

Abstract: A plasma display apparatus is disclosed. A scan driver of the plasma display apparatus supplies a voltage of a scan signal of a negative polarity direction and a voltage of a sustain signal to a scan electrode using one voltage source. Further, a sustain driver of the plasma display apparatus supplies a voltage of a sustain signal and a sustain bias voltage to a sustain electrode using one voltage source.

Abstract: Disclosed is a plasma display apparatus. The plasma display apparatus includes a plasma display panel comprising scan electrodes, and a scan driver comprising a set up pulse supplier forming a current loop connecting a resistor and capacitors of the plasma display panel to the scan electrodes to thereby supply set up pulses to the scan electrodes.

Abstract: [Problem]To provide an organic EL drive circuit and an organic EL display device, capable of restricting an area taken by gamma correction circuits provided correspondingly to terminal pins. [Means for Solving the Problem]An organic EL drive circuit includes switch circuits for connecting the terminal pins to a predetermined potential line according to a reset pulse, a correction data generator circuit for generating correction data for correcting a light emitting period of the organic EL element according to display data for gamma correction of luminance of the organic EL element and a reset pulse generator circuit for generating the reset pulse having pulse width corresponding to the gamma correction according to the first timing control signal and the correction data.

Abstract: Each pixel has a display element, a pixel transistor which controls an operation of the display element, and a storage capacitor which stores charges corresponding to display data for a predetermined period. During a normal operation, a capacitor signal to be output to a capacitor line connected to each storage capacitor is AC driven in a predetermined period to improve display quality or the like. A structure to fix the capacitor signal to be output to the capacitor line to a fixed level during defect inspection of the pixel or the like is formed on a substrate simultaneously with a pixel circuit or the like. With this structure, the inspection precision can be improved when the defect inspection of each pixel is to be detected from capacitance value data or the like in each pixel. It is also possible to allow setting of the fixed level in the inspection to an arbitrary inspection voltage suitable for the inspection.

Abstract: The method includes applying a gray level current corresponding to a display gray level to each of pixel circuits for a first period, applying a display current based on the gray level current to the self-luminescent elements during a second period succeeding the first period to display corresponding the display gray level, and applying a precharge current to the self-luminescent device during a third period before the first period on the basis of a predetermined first condition.

Abstract: A color display apparatus is consituted by a display panel which has light reflection area and a light transmission area for each pixel , and a light source for causing light to enter said display panel from a back surface of said display panel. The light reflection area includes plurality of subareas including a first subarea in which the incident light is modulated and reflected in a brightness change range within which a brightness of a reflected light is variable and a hue change range within which a hue of a chromatic color assumed by a reflected light is variable and a second subarea provided with a color filter in which incident light is modulated and reflected in a brightness change range within which a brightness of a reflected light is variable. In the light transmission area, the incident light is modulated in a brightness change range within which a brightness of a transmitted light is variable. The light source is periodically switched at least between two lights different in color.

Abstract: A backlight for a color liquid crystal display apparatus in which light of the three primary colors of red, blue, and green is directly incident on the corresponding pixels of a liquid crystal layer, the backlight comprising a first light-guide plate; a first incidence part for receiving light of a first primary color from among the light of the three primary colors in a first area on a first lateral surface of the first light-guide plate; a second incidence part for receiving light of a second primary color light from among the light of the three primary colors in a second area on a second lateral surface that is opposite to the first lateral surface of the first light-guide plate; and a third incidence part for receiving light of a third primary color from among the light of the three primary colors in a third area on a rear surface of the first light-guide plate.

Abstract: A light emitting device and an element substrate which are capable of suppressing variations in the luminance intensity of a light emitting element among pixels due to characteristic variations of a driving transistor without suppressing off-current of a switching transistor low and increasing storage capacity of a capacitor. According to the invention, a driving transistor also serves as an erasing transistor and the driving transistor is operated in a saturation region. The gate of the driving transistor is connected to an erasing scan line and it can be selected whether or not to flow current by a potential of the erasing scan line. In addition, a current controlling transistor which operates in a linear region is connected in series to the driving transistor, thus a video signal transmitting a light emission or non-emission of a pixel is input to the gate of the current controlling transistor through a switching transistor.

Abstract: A dimming method for LED driving circuit is proposed. By temporary switching a pin that is originally used for the input/output of other electric signals to a high impedance node, the dimming control signal may be inputted to dim LEDs. The dimming method comprises the steps of: floating the pin every a period of time to pull the pin's voltage being equal to the dimming control signal; detecting the pin's voltage; and retrieving the dimming control signal in accordance with the detected pin's voltage and thereafter dimming the LEDs.

Abstract: The present invention provides a various methods, systems and devices for controlling light modulating elements and/or spatial light modulators. In some embodiments of the present invention, a recursive feedback method is used to control light modulating elements and/or spatial light modulators.

Abstract: A field-sequential display apparatus having a light source that emits light of different colors in different subframes of an image controls the spectral distribution of the light emitted in each subframe according to characteristics of the input image data, or to ambient conditions or other user-specified conditions. The input image data are processed so that image colors are displayed correctly despite changes in the spectral distribution of the light-source colors. This scheme enables the gamut of reproducible colors to be altered from frame to frame to provide an appropriate balance between brightness and color saturation in each frame, and to compensate for ambient lighting conditions.

Abstract: A passive spatial light modulator device includes a plurality of micro mirrors hinged over a pivot point supported by a substrate. A micro mirror includes a conductive surface on a lower surface and a first electrode situated under the conductive surface. The micro mirror can be selectively tilted about its pivot point by a first electric pulse applied to a mirror-reset line in connection with the conductive surface of the micro mirror and a second electric pulse applied to a bit line in connection with the first electrode under the micro mirror.

Abstract: An image display system includes an array of movable micromirrors each controlled by a mirror control system to oscillate between a fully ON and fully OFF positions. The mirror control system further includes at least electrode for applying voltages thereon according to an analog scale for controlling each of the micromirrors to oscillate substantially around a central angle of oscillation varying between the fully-On and fully-OFF angular positions, according to an analog angular scale corresponding to the analog scale of the voltage applied to the electrode(s). The brightness of a reflection from each of these micromirrors are therefore controllable according to an analog scale to generate a corresponding grayscale substantially according to an analog scale.

Abstract: An apparatus and method for driving an LCD device is provided. The apparatus for driving an LCD device includes an image display unit that displays an image, and a driving circuit that varies the number of frames of the image displayed in the image display unit in response to motion of the image.

Abstract: A liquid crystal display having specific dispositions of pixels of a liquid crystal display so as to prevent the coupling defect and the stripe defect in high speed driving. The liquid crystal display includes a plurality of pixels arranged in a matrix shape, a switching element connected to each pixel, data lines and gate lines connected to the switching elements, and a data driver generating data voltages and applying the data voltages to the data lines. The data lines are disposed at both sides of the pixels in pairs, and data voltages of the same magnitude with different polarities are applied to the pairs of data lines. In this manner, preventing the coupling defect and the stripe defect, high speed driving can be performed.

Abstract: A device is described that comprises a layer of material (254) disposed between first and second cell walls (250,252) and is capable of adopting, and being electrically latched between, at least two stable configurations. The layer of material (254) comprises one or more separate electrically addressable regions (270, 272, 274, 276) and addressing means are provided to write to each of said electrically addressable regions using voltage pulses to selectively latch said layer of material as required. The addressing means is arranged to write to each of said one or more separate electrically addressable region using at least first and second latching scans.

Abstract: A semiconductor device having a normal function means is provided, in which the amplitude of an output signal is prevented from being decreased even when a digital circuit using transistors having one conductivity is employed. By turning OFF a diode-connected transistor 101, the gate terminal of a first transistor 102 is brought into a floating state. At this time, the first transistor 102 is ON and its gate-source voltage is stored in a capacitor. Then, when a potential at the source terminal of the first transistor 102 is increased, a potential at the gate terminal of the first transistor 102 is increased as well by bootstrap effect. As a result, the amplitude of an output signal is prevented from being decreased.

Abstract: An electrophoretic display device is driven by application driving waveforms comprising application of various potential differences (R, Gs, P) to bring about a change in image. In the display and method in accordance with the invention the duration of the time period (?t) in which the end of the transition of one image to another for various waveforms occurs is less than 37.5% of the maximum time period of the waveform (?<0.375 tmax), and preferably the end of the waveforms are is synchronized in time (?=O), i.e. the end of all waveforms occur at the same instance (tsynchrone).

Abstract: In an OCB liquid crystal display device, a gradation voltage of a video signal is set to be lower than a black display optimum voltage, and a reverse transition prevention voltage is set to be higher than the black display optimum voltage and to be lower than a maximum applied voltage, and as the gradation voltage of the video signal becomes low, the reverse transition prevention voltage is set to be high.

Abstract: A liquid crystal display panel includes a first substrate, a second substrate opposite to the first substrate, and a liquid crystal layer sandwiched between the first substrate and the second substrate. The first substrate and the second substrate cooperatively form a multiplicity of pixels. The first substrate also includes a pixel pad electrically connected to one of the pixels. According to this configuration, a grayscale voltage of the liquid crystal display panel can be conveniently adjusted.

Abstract: A liquid crystal display device includes a gate bus line and a data bus line formed on a first substrate, a first transistor formed on the first substrate and connected to the gate bus line and the data bus line, a plurality of sub-picture element electrodes formed the said first substrate in a picture element region defined by the gate bus line and the data bus line, a control electrode formed on the first substrate in capacitance coupling with at least one of the plural sub-picture element electrodes, the control electrode being applied with a display voltage from the data bus line via the first transistor, and an auxiliary capacitance bus line held at a predetermined voltage level and constituting an auxiliary capacitance between the auxiliary capacitance bus line and the control electrode, wherein there is provided a second transistor between the sub-picture element electrode coupled with the control electrode by the capacitance coupling and the auxiliary capacitance bus line or between the sub-picture el

Abstract: A liquid crystal display device with low power consumption is provided by using a driver circuit and a pixel that have novel circuit structures. In a liquid crystal display device using n (n is a natural number and satisfies n?2) bit digital video signals to display an image, n×m (m is a natural number) memory circuits and n×k (k is a natural number) non-volatile memory circuits are provided in each pixel, thereby giving the device a function of storing m frames of digital video signals in the memory circuits and a function of storing k frames of digital video signals in the non-volatile memory circuits. Once stored in the memory circuits, the digital video signals are repeatedly read out for every new frame to display a still image, so that driving of a source signal line driver circuit can be stopped during still image display.

Abstract: A LED driver circuit is provided for controlling the brightness of a LED. A control circuit is used for generating a LED current in accordance with a resistor. The control circuit is further coupled to detect a LED voltage for adjusting the LED current in reference to the LED voltage. The value of the LED voltage is correlated to the LED temperature. Therefore, the LED current is then programmed in accordance with the LED temperature.

Abstract: An object of the present invention is to provide an image display device that is capable of displaying an image with high brightness and low power. The above object is achieved by controlling, by use of a common switch control line 9, a pair of switching means 7, 8 for alternatively selecting and inputting one of the video signal voltage from a signal line DAT and the pixel driving voltage from a signal line SWP.

Abstract: A pixel circuit having a function of compensating for characteristic variation of an electro-optical element and threshold voltage variation of a transistor is formed from a reduced number of component elements. The pixel circuit includes an electro-optical element, a holding capacitor, a sampling transistor, and a drive transistor. The sampling transistor samples and supplies an input signal from a signal line so as to be held into the holding capacitor. The driving transistor drives the electro-optical element with current in response to the held signal potential. The threshold voltage of the drive transistor is imparted to the holding capacitor in order to cancel an influence of the threshold voltage.

Abstract: A liquid crystal display (“LCD”) includes a liquid crystal panel assembly including a plurality of pixels, each having first and second subpixels, an image signal converter dividing an input image signal having a first bit number into a first pre-signal and a second pre-signal each having a second bit number less than the first bit number, and converting the first pre-signal having a first bit number into a first output image signal having the second bit number, and converting the second pre-signal into a second output image signal having the second bit number, and a data driver applying a data voltage corresponding to each of the first and second output image signals to the first and second subpixels, respectively.

Abstract: A driving circuit and display device reducing waste of a bias current of an amplifier and conserving power. The driving circuit includes a driving signal supply mechanism, an amplifier mechanism and a control mechanism. The supply mechanism supplies a driving signal having a target voltage represented during periodic update. The amplifier mechanism has an amplifier part, a current-adjustable constant current source and a switch part. The driving signal is input to the amplifier part, which generates an output to a capacitance load according to the driving signal. The current source supplies and regulates a passing rate of the bias current to the amplifier part. The switch part performs ON/OFF control to the current output to the current source. The control mechanism detects a difference between the previous and present values of the target voltage to change a current value of the current source.

Abstract: The present invention discloses a liquid crystal display and a driving method thereof to speed up a bend alignment at an initial operation such as right after power on in the liquid crystal display with OCB mode. According to the present invention, the LCD, which includes a LCD panel, a source driver outputting image signals and a gate driver sequentially outputting scanning signals, at an initial operation, is controlled to output external bias voltages to common electrode lines and simultaneously to stop the driving of the gate driver and the source driver, according as a first time passes, is controlled to output specific common electrode voltages thereto instead of the external bias voltages and simultaneously to perform a driving of the source driver and the gate driver.

Abstract: An object of the present invention is to suppress a picture defect such as a vertical streak, a ghost or the like on an active matrix display apparatus of a divided sample and hold type. A horizontal driving circuit (17) sequentially generates sampling pulses of which sampling pulses supplied to sampling switches (23) connected to an identical video line (25) do not overlap each other and sampling pulses supplied to adjacent sampling switches (23) overlap each other, and drives the switches, whereby a video signal is sequentially written to pixels (11). A clock generating circuit (18) generates a clock signal HCK serving as a basis for operation of the horizontal driving circuit (17), and a clock signal 2HCK having twice a cycle of the clock signal HCK and twice a pulse width of the clock signal HCK.

Abstract: An output buffer for reducing electromagnetic interference (EMI) occurring due to a supply voltage applied to an integrated circuit includes a voltage sensing circuit sensing a voltage change caused by rapid voltage change at an output terminal in an internal circuit of the output buffer. The voltage sensing circuit senses a voltage change at the output terminal and applies a supply voltage or a ground voltage to the output terminal based on the sensing result, thereby gradually recovering the voltage of the output terminal to an original state. Accordingly, rapid current change does not occur at the output terminal of the output buffer, so that the voltage of the output terminal is maintained stable. As a result, EMI occurring due to the supply voltage is reduced.

Abstract: A gate driver and a method for repairing the same are disclosed. The gate driver includes a shift register including a plurality of stages each having a respective one of a plurality of first output lines; at least one repair line connectable to the first output lines; a storage device to store information therein to identify a position of a certain stage of the plurality of stages; and a repair scan pulse generator to provide repair scan pulses to the repair line based on information stored in the storage device.

Abstract: A display device in which a plurality of pixels are disposed in a matrix form includes data lines connected with the pixels, a signal controller for processing image data received from the outside and generating a plurality of control signals and clock signals, a gray voltage generator for generating a plurality of gray voltages, and a data driver including a plurality of data driver ICs for selecting gray voltages corresponding to image data from signal controller among the gray voltages and applying them as data voltages to data lines, wherein data driver includes four data driver ICs groups and each data driver IC group receives a separate clock signal and includes at least two data driver ICs connected in series with each other is disclosed.

Abstract: A display driving integrated circuit includes: a tone display reference voltage generating circuit for generating 64 tone display reference voltages by resistive division on the basis of a predetermined reference voltage; D/A conversion circuits each for performing an analog conversion with respect to display data on the basis of the 64 tone display reference voltages; and 64 reference voltage wires provided in parallel, via which the 64 tone display reference voltages are supplied to the D/A conversion circuits, respectively. The 64 reference voltage wires are provided so that a potential difference corresponds to two tones or more between adjacent two reference voltage wires.

Abstract: To take aim at low power consumption when controlling display/non-display in an arbitrary area.

Abstract: A liquid crystal display television receiver projection system uses a controller responsive to a first signal by providing power to a first set of circuits of the system. The controller is responsive to a second signal by removing power from a second set of circuits of the system; A timer defines a time interval between an instance of a power off signal and an instance of a power on signal. In the event a user issues a power on command before the first interval has elapsed, power will be applied to circuits other than the lamp. The lamp will remain de-energized until the first interval has elapsed. Therefore, a user is prevented from re-striking the lamp.

Abstract: A display device reduces artifacts in displayed images using an illumination device that includes light sources for emitting light and an illumination drive circuit operable to individually modulate each of the light sources. Electro-optical elements defining pixels of an image are each optically coupled to receive light correlated with one of the light sources. A controller loads data representing a portion of the image into those electro-optical elements that are correlated with a modulated one of the light sources modulated to reduce the intensity thereof.

Abstract: A display device for providing optical feedback includes light sources, each for emitting light in a different respective wavelength range, electro-optical elements defining pixels of an image, each for selectively passing light in one of the wavelength ranges and a sensor for measuring the intensity of light output from a portion of the electro-optical elements. To provide the optical feedback, a controller activates one of the light sources, alters those electro-optical elements within the portion of the electro-optical elements that are arranged to pass light in the wavelength range of a select one of the light source and reads out the measured intensity from the sensor. Based on the measured light intensity, the controller adjusts an illumination parameter associated with the select light source.

Abstract: In a display device and a method of driving the display device each having an improved image display quality, the display device includes the display panel assembly, a light emitting unit and a control unit. The display panel assembly has a plurality of unit pixels and displays an image. The light emitting unit is disposed under the display panel assembly to supply light to the display panel assembly, and has a plurality of light emitting diodes (“LEDs”) corresponding to a unit pixel group including a given number of the unit pixels. The control unit is electrically connected to the display panel assembly and the light emitting unit, and controls the unit pixels by arbitrary regions and the LEDs by arbitrary regions. Thus, a contrast ratio of the display device is increased to improve image display quality.

Abstract: A driving system for a matrix type backlight module having a plurality of light spots is provided. The driving system includes a timing controller providing a timing signal to control a starting up sequence and a turning on time for each of the plurality of light spots, a row driver electrically connected to the timing controller and providing a turning on time of the matrix type backlight module in a row direction according to the timing signal, and a column driver electrically connected to the timing controller and providing a turning on time of the matrix type backlight module in a column direction according to the timing signal.

Abstract: Occurrence of insufficient writing to a liquid crystal display element is prevented in the liquid crystal display device which causes a backlight to illuminate only while the liquid crystal display element responds to the display data.

Abstract: The present invention is to reduce power consumption in a display that concurrently (or alternately) implements light emission and light reception in parallel. A display is provided with a display panel configuration including a plurality of display elements arranged in a matrix and a plurality of light-receiving elements that are disposed adjacent to the plurality of display elements and receive light incident on a display plane. In addition, the display includes a position detector that determines the position of contact or proximity to the display plane based on a light reception signal arising from light reception by the light-receiving elements. Furthermore, the display includes a controller that shifts the displaying state or the position detection state from the low power consumption mode to the normal operation mode if the position detector has determined the presence of contact or proximity in a predetermined state.

Abstract: A driving apparatus of a backlight includes a controller for controlling square wave oscillation, a square wave oscillator for oscillating a constant square wave signal in accordance with a control signal from the controller, and a signal generator for generating a burst dimming signal using the square wave signal.

Abstract: Provided is an image display apparatus. The image display apparatus includes an inverter for supplying electric power to a light source, a dimming control unit for controlling the power supply of the inverter, and a control unit providing a dimming frequency selected according to an image signal inputted to the dimming control unit.