Abstract: Techniques for identifying and discriminating between different types of contacts to a multi-touch touch-screen device are described. Illustrative contact types include fingertips, thumbs, palms and cheeks. By way of example, thumb contacts may be distinguished from fingertip contacts using a patch eccentricity parameter. In addition, by non-linearly deemphasizing pixels in a touch-surface image, a reliable means of distinguishing between large objects (e.g., palms) from smaller objects (e.g., fingertips, thumbs and a stylus) is described.

Abstract: A system and method are disclosed for determining a pixel capacitance. The pixel capacitance is correlated to a pixel age to determine a current correction factor used for compensating the pixel drive current to account for luminance degradation of the pixel that results from the pixel aging.

Abstract: A plasma display device (PDP) and method of driving it (during an address period) are provided. Such a PDP has an address electrode for receiving an address pulse and a capacitor. Such an address pulse has states including a first voltage and a smaller second voltage smaller. Such a capacitor stores a third voltage that is between the first and third voltages. Such a method includes: coupling the capacitor to the address electrode via the inductor; firstly energizing, via the inductor, the address electrode with the third voltage stored in the capacitor; secondly energizing the address electrode with the first voltage; thirdly energizing, via the inductor, the capacitor with voltage on the address electrode; and fourthly energizing the address electrode with the second voltage. Real power transfer during the first and third energizations is facilitated via reactive power transfer arising from LC resonance.

Abstract: A viewing angle controllable liquid crystal display device, as embodied, includes: a liquid crystal panel including a plurality of color pixels, each of the color pixels having color subpixels and at least one interference subpixel; an input unit for inputting color subpixel data to be supplied to the color subpixels and inputting area data of an image whose security is requested; an interference data generating unit for generating interference subpixel data to be supplied to the interference subpixels; an interference area control unit for controlling the interference data generating unit to output the interference subpixel data corresponding to the area data; a data combining unit for combining the interference subpixel data with the color subpixel data; and a driving circuit for driving the color subpixels and the interference subpixels on the liquid crystal panel using the combined data from the data combining unit.

Abstract: In a method for position decoding, a position is calculated on the basis of information determined from a partial area, imaged by a sensor, of a position-coding pattern. If the position calculation fails, the information from the partial area recorded by the sensor is matched with information about how the position-coding pattern is designed in a plurality of matching partial areas, which each define a position in the position-coding pattern. The position of the positions defined by the matching partial areas, which according to the matching step is the most probable position in the position-coding pattern for the imaged partial area is accepted as the decoded position. A device and a computer program for carrying out the method are also described.

Abstract: An exemplary power supply circuit (200) for a liquid crystal display device (2) includes a switch control circuit (28) for receiving a control signal from an external control circuit, the control signal controlling the turning on or turning off of the switch control circuit; a first DC/DC converter (27) for adjusting the direct current voltage from an external circuit, outputting an output voltage. The switch control circuit controls switches the power supply of the output voltage to a liquid crystal display panel (20) of the liquid crystal display device.

Abstract: A pixel control device and a display apparatus utilizing said pixel control device are provided. The pixel control device is electrically connected to a sub-pixel area to provide a first voltage level, a second voltage level, and a third voltage level to the sub-pixel area, so that liquid crystals can be disposed in various angles. A scan line of the pixel control device controls a first transistor, a second transistor, and a third transistor to be switched on. The first and second data lines thereof provide a first and a second data-referenced voltage levels, respectively, to determine the first, the second, and the third voltage levels.

Abstract: A method for adjusting backlight brightness for an image display device whose backlights are arranged in an M×N, 2-dimensional array, and an apparatus for realizing this are provided. The method comprises a full search step determining the brightness adjustment value for each of the M×N image blocks corresponding to the backlights for the entire input image and selecting a reference block; a partial search step determining the brightness adjustment value for the selected reference block and surrounding blocks thereof for the image frame inputted following the full search step and reselecting a reference block based on the brightness adjustment value of the previous reference block and surrounding blocks thereof; and an adjustment step adjusting brightness of the backlights in accordance with the brightness adjustment value for each block as determined by the full search step and/or partial search step.

Abstract: A displaying apparatus includes a signal input unit through which an analog image signal is input, an A/D converter to convert the analog image signal input through the signal input unit into a digital image signal according to a preset offset value thereof, a monitoring unit to sense a generation of an abnormal operating condition of the A/D converter, and a controlling unit to store information on a desired reference digital image signal corresponding to the preset offset value, to compare the digital image signal output from the A/D converter with the desired reference digital image signal information when the generation of an abnormal operating condition of the A/D converter is sensed by the monitoring unit, and to the preset offset value of the A/D converter when the digital image signal output from the A/D converter is different from the desired reference digital image signal, so that the digital image signal output from the A/D converter matches the desired reference digital image signal.

Abstract: A gate driving circuit includes stages connected in series. In a stage, a pull-up part pulls up a present gate signal to a level of a first clock signal, and a pull-down part receives a next gate signal from a next stage to discharge the present gate signal to an off-voltage. A pull-up driving part turns on or turns off the pull-up part and the carry part. A holding part holds the present gate signal at the off-voltage and a present inverter turns on or turns off the holding part in response to the first clock signal. A ripple preventing capacitor is connected between a present node and an output terminal of a previous stage's inverter to prevent a ripple at the present Q-node in response to an output signal from the previous inverter.

Abstract: The present invention aims at the lowering of an image quality of an outer peripheral portion of an image display region. For this end, in a display device in which a plurality of display panels are arranged from a front side to a depth side in an overlapped manner and an image is displayed on the respective display panels, the respective display panels have regions which allow the image to be displayed thereon (image display regions) broadened toward the depth-side display panel from the front-side display panel.

Abstract: A waveform generator can be constructed at a small area size using thin-film transistors and generates multiple triangular-wave voltage waveforms different from one another in phase, and an image display device that applies the waveform generator. A waveform generator that uses loop-form resistive wiring is provided on a substrate. The waveform generator supplies a triangular-wave voltage waveform or stepped voltage waveform of a voltage signal occurring in the loop-form resistive wiring to pixel circuits. The loop-form resistive wiring has multiple voltage supply switches that supply at least two kinds of voltages.

Abstract: There is provided with an image display method including: creating a histogram indicating frequencies of pixels included in level-ranges associated with representative gray-scale levels; calculating differences between first brightnesses each predetermined for the each representative gray-scale level and second brightnesses each preliminarily obtained for the each representative gray-scale level displayed on an image display with each of a plurality of light-source levels of light-source luminance, accumulating, for each of the representative gray-scale levels, products of the differences by the frequency, selecting a selected light-source level having the smallest accumulated sum or the smaller accumulated sum than a threshold value; providing signals of one frame of an input video image to a light modulation device that displays an image by modulating a transmittance or a reflectance of light from a light source, and controlling so that the light source emits light in luminance corresponding to the selected

Abstract: Techniques for identifying an object in close proximity to, but not in contact with, a multi-touch touch-screen device are described. By way of example, a cheek or ear hovering a short distance from the touch-surface (e.g., approximately 1 to 3 centimeters) may be identified and distinguished from physical contacts to the surface.

Abstract: In a semiconductor integrated circuit device, a shift register includes a plurality of cascaded flip-flops adapted to generate shift pulse signals in response to a start signal. A logic circuit receives a pulse signal at its input end and supplies the pulse signal from its plurality of output ends to the flip-flops. The pulse signal at each of the plurality of output ends is allowed and prohibited by a corresponding one of the shift pulse signals.

Abstract: Techniques for identifying and discriminating between different input patterns to a multi-touch touch-screen device are described. By way of example, large objects hovering a short distance from the touch-surface (e.g., a cheek, thigh or chest) may be identified and distinguished from physical contacts to the surface. In addition, rough contacts due to, for example, ears and earlobes, may be similarly identified and distinguished from contacts due to fingers, thumbs, palms and finger clasps.

Abstract: The present invention relates to a display device that includes a plurality of light-emitting elements that emit different-colored light, a plurality of driving transistors that supply driving currents to the light-emitting elements so that the light-emitting elements emit light, and a plurality of sense transistors that are exposed to the light-emitting elements and that generate a photocurrent on the basis of light emission of the light-emitting elements. The sense transistors corresponding to the light-emitting elements that emit light having different colors have different sizes from each other.

Abstract: To provide a highly reliable display device whose electrical element is applied with a low voltage. The display device is an active matrix FED display device whose pixel has an individual extraction gate electrode, an emitter array, a driving transistor which is connected to the emitter array in series, a potential control circuit which controls the potential of the extraction gate electrode, and a circuit which includes a switching element and a voltage holding element. By varying the potential of the extraction gate electrode in accordance with Vgs of the driving transistor, the active matrix driving method is performed by connecting a driving transistor to the emitter array in series and voltage which is applied to the driving transistor can be reduced.

Abstract: Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones.

Abstract: A scan driving circuit including an input terminal to receive an input signal or a voltage output from a previous stage; first and second clock terminals to receive first and second clock signals having phases inverted to each other and partially overlap at a high level, respectively; and a plurality of stages having an output terminal to output scan signals having a low level in sequence, leaving an interval between the scan signals, equivalent to a time the first and second clock signals overlap at the high level, wherein the output terminal of the stage is maintained to have a non-floating state regardless of whether the stage outputs the scan signal.