Abstract: Disclosed herein is a display device having an insulating substrate, an effective pixel area formed on the insulating substrate and having at least pixels arranged in the form of a matrix, and a peripheral circuit formed on the insulating substrate so as to surround the effective pixel area, the pixels being driven by the peripheral circuit to display a desired image in the effective pixel area, the display device including an extraneous light sensor provided in the effective pixel area for detecting extraneous light to output an extraneous light quantity detection result for use in controlling the luminance of the image.

Abstract: An organic light emitting diode display device for changing a gamma reference voltage step by step in accordance with an image brightness of a current frame to reduce damage with which the organic light emitting diode and the driving transistor thereof are applied is disclosed. In the organic light emitting diode display device, a brightness detector calculates a maximum brightness value of each pixel using inputted image data of current frame. An adder adds all maximum brightness values of each pixel which are detected by the brightness detector. An average value calculator calculates an average brightness value of a current frame using an added value of maximum brightness values which are added by the adder. A gamma weight calculator calculates a gamma reference voltage weight which is set to correspond to the calculated average brightness value among predetermined gamma reference voltage weights.

Abstract: To equalize the intensity of light emitted by display elements on a display device, a plurality of current-drive circuits are connected in cascade through two terminals of each of the current-drive circuits, each comprising a reference current generation section including a reference resistor and a plurality of current drive sections. Reference current sunk by an external reference current source causes a voltage drop across the reference resistor, and the voltage drop is applied across a current adjustment resistor In response to an image signal, the current-drive circuit outputs current, determined by multiplying each of a plurality of internal reference currents by an optional factor and summing the resulting currents to the display elements. Since the magnitude of the internal reference current flowing inside the current-drive circuit can be varied by varying the value of the current adjustment resistor, gamma correction can be applied to drive current with high accuracy.

Abstract: A gate driving method for a liquid crystal display (LCD) and a gate driver thereof are provided. The LCD has a plurality of scan lines. The method starts by generating a gate driving signal. A correction signal is superposed to the gate driving signal to generate a corrected gate driving signal and to reduce a high voltage level of the gate driving signal, wherein a polarity of the correction signal is opposite to a polarity of the gate driving signal. The corrected gate driving signal is then outputted to drive one of the corresponding scan lines.

Abstract: Systems and methods of displaying an end-of-life image on an electronic display are disclosed. An end-of-life image is displayed on a MEMS display device in the presence of sufficient water vapor and without continued activation of the display. The image can he displayed in response to user input, in response to detection of a predefined level of water vapor within the display package, according to a prestored lifetime of the device, or according to the natural expiration of the lifetime of the display device and packaging.

Abstract: A liquid crystal display is provided. The liquid crystal display includes a plurality of first pixels provided with RGB color filters and a plurality of second pixels provided with CMY color filters are formed at a liquid crystal display panel. A video processing part is inputted with RGB data to generate CMY data, and selectively outputs RGB data inputted in accordance with a clock signal and CMY data generated in accordance with a clock signal. A control part controls a supply of RGB data or CMY data inputted from the video processing part in accordance with the clock signal. In accordance with a control part, a data driving part converts RGB data or CMY data outputted from the control part into an analog data, and then supplies it to the plurality of first pixel or the plurality of second pixel.

Abstract: In the method of driving a plasma display panel according to the present invention, the address electrodes are divided into a plurality of electrode groups, and the an application time point of data pulses applied to one or more of the address electrode groups in the address period is different from that of a scan pulse applied to the scan electrode in all the sub-fields of the frame. In addition, the width of the scan pulse applied during an address period of a predetermined number of the sub-fields is greater than the width of scan pulses applied during the address period of the remaining sub-fields.

Abstract: A display device and a driving method thereof are provided. The display device comprises a plurality of pixels, each pixel includes: a light emitting element; a storage capacitor; a driving transistor that has a control terminal, an input terminal, and an output terminal and supplies a current to the light emitting element to emit light; a first switching transistor for supplying a data voltage to the storage capacitor in response to a scanning signal; a second switching transistor for diode-connecting the driving transistor in response to a previous scanning signal; and a third switching transistor for supplying a driving voltage to the driving transistor in response to an emission signal, wherein the storage capacitor stores a control voltage depending on a threshold voltage of the driving transistor and a threshold voltage of the light emitting element through the diode-connected driving transistor, and transmits the control voltage and the data voltage to the control terminal of the driving transistor.

Abstract: A circular touch sensor has three or more sensors arranged in an iris pattern. Each pad is defined by continuous edges that spiral outward about a center point. The unique geometric shape allows measurement of relative amounts of contact on adjoining sensors. In one implementation, the sensors measure relative capacitance of two or more sensors, thereby enabling high precision identification of the point of contact. With as few as three pads, the circular touch sensor is less expensive than traditional 12-pad to 16-pad circular sensors.

Abstract: Embodiments of the present invention can phase in image adaptations for display devices by determining a next incremental step among a plurality of incremental steps from an initial image state of a display device to a target image state, and then implementing the next incremental step.

Abstract: A peripheral input device having a body configured to be stored within a housing of a computer device is disclosed. In at least one embodiment, a wireless input device is configured to be recharged within the housing. Further aspects of the invention relate to an input device configured to operatively connect to underutilized ports of a computer system. In one embodiment, the input device operatively connects to a PCMCIA port of a computer. Yet further aspects of the invention relate to an input device having an expandable body, wherein the body may be configured to have an increased surface area upon expansion of the body.

Abstract: An information display device (1A) comprises a touch panel (TP), an information display panel (LCD) located under the touch panel (TP) and four strip-like piezoelectric elements (E), which are caused to be vibrated and displaced by a pressing force generated when the touch panel (TP) is pressed, being disposed at the outer peripheral portion of the touch panel (TP), wherein both end portions of each strip-like piezoelectric element (E) are supported by surface-like holders (112A, 112B) with twist resilient deformation structures and a rotary shaft (113) so that each strip-like piezoelectric element (E) may not be disturbed from being vibrated and displaced. In this touch panel type information device, both end portions of a plurality of strip-like piezoelectric elements are supported by the supporting member having the holders with the twist resilient deformation structure which do not disturb both end portions of the strip-like piezoelectric elements from being vibrated and displaced.

Abstract: A method for diffusing errors in a display device. Each frame of an input video signal is separated into at least two independent subframes. An error diffusion process is applied to each subframe of at least two independent subframes. The errors transmitted reciprocally from subframes are partially mixed, and the error diffusion process is applied to the mixed errors at each independent subframe.

Abstract: An IPS mode LCD device is disclosed in which a common voltage drop and delay is decreased. The LCD includes gate and data lines crossing each other to define pixel regions. Thin film transistors are formed at crossing portions of the gate and data lines. Common lines are parallel with the gate lines and common electrodes project from the common lines parallel with the data lines. Pixel electrodes connected with drain electrodes of the thin film transistors are formed in the pixel regions between the parallel common electrodes. A first common voltage supplying line applies a first common voltage or a second common voltage to a closed circuit formed by grouping the adjacent odd numbered common lines. A second common voltage supplying line applies the second common voltage or the first common voltage to a closed circuit formed by grouping the adjacent even numbered common lines.

Abstract: A touch panel using an optical sensor has a simple construction and can accurately detect an input position. An illuminating lights emitted from illuminating means are turned into lights having a high directivity in an X-axis direction and in a Y-axis direction of the prism lens sheet and thereafter enter from side faces of a light guide panel as incident lights. The incident lights advance in the inside of the light guide panel toward opposite side faces while being subjected to a total reflection and are received by the optical sensor arrays. When an input pen or a fingertip touches a surface of the light guide panel, the lights are refracted or absorbed at a touched position and hence, a quantity of received lights at the optical sensor arrays is reduced.

Abstract: A driving apparatus for an organic light-emitting diode includes an organic light-emitting diode, a driving switch that drives the organic light-emitting diode in response to a control voltage applied to a gate terminal of the driving switch, a high-level voltage source that supplies a high-level voltage to the driving switch, a data driving circuit that supplies a data voltage to a data line of the driving apparatus, a reference voltage source that supplies a reference voltage to the driving apparatus, and a capacitor that applies the control voltage to the gate terminal of the driving switch, the control voltage being a difference between the data voltage and the reference voltage.

Abstract: A display device, for carrying out image display on a display panel by controlling current flowing in display elements for each pixel based on image data, including display setting circuitry for setting a relationship between image data and current values for current flowing in display elements in response to an input adjustment signal, to set contrast or brightness; estimation circuitry for estimating panel current flowing in all pixels when carrying out display for the display panel based on the image data; and current control circuitry for controlling actual panel current by correcting the set contrast or brightness based on the panel current estimated by the estimation circuitry.

Abstract: An image display apparatus includes a light emitting element that emits light depending on an injected electric current; a driver that includes at least a first terminal and a second terminal, and controls the light emitting element based on a potential difference, applied between the first terminal and the second terminal, of a level higher than a predetermined threshold; a storage capacitor that serves to retain a potential on the first terminal of the driver; and a controller that changes the potential on the first terminal via the storage capacitor at writing of electric data current corresponding to a display in a black level.

Abstract: A plasma display panel includes scan electrode lines, sustain electrode lines and data electrode lines formed within a display area. A common electrode line is formed along a side of the device at a non-display area and is commonly connected to the sustain electrode lines. A first pad portion is formed at a non-display area on a side of the device, and wires carrying scan signals are connected to the scan electrode lines at the first pad portion. A second pad portion is also formed at a non-display area on either a side edge, an upper edge or a bottom edge of the device, and a conductive path carries a sustain signal to the common line through the second pad portion.

Abstract: A video signal line receives a voltage video signal. The supplied voltage video signal is provided to a voltage-current conversion circuit in a corresponding column. The voltage-current conversion circuit converts the voltage video signal into a current signal, and supplies the current signal to a corresponding pixel circuit. Each voltage-current conversion circuit includes an output transistor for supplying current in accordance with the voltage video signal, and a compensation circuit for compensating for variations in threshold of the output transistor.