Abstract: In a display device having a nonvolatile memory device, such as an active matrix type liquid crystal display device, display contents displayed on the display device are obtained by a camera device. The obtained information (corresponding to the display contents) is digital-converted and then processed to detect a defect and a nonuniformity on the display device, so that correction information is produced. The correction information is stored in the nonvolatile memory device of the display device. Display information to be displayed on the display device is processed using the stored correction information, so that display contents are corrected and a defect and a nonuniformity on the display contents are inconspicuous.

Abstract: A flat panel display is provided in which a controller generates gamma data digitized for each gradation and transmits the same to column driver ICs, which then generate gradation voltage by using gamma data and output column signals. Here, the gamma data can be transmitted in TTL system or differential signal transmission system. Thus, the number of transmission lines can be reduced since column driver ICs generate the gradation voltage by utilizing gamma data produced from the controller and output a column signal. As a consequence, a control board can be configured in an easy manner while at the same time reducing manufacturing costs. Further, a high precision image representation, low power consumption, and high speed data transmission can be obtained while at the same time eliminating EMI trouble.

Abstract: A computer mouse system and method of using is presented whereby the computer mouse system is used in conjunction with laptop or notebook computers or with external or auxiliary mouse, and with external or auxiliary computer keyboards. Each embodiment having touch pads, glide points, touch screens, or touch panels, integrated into the touch pads, glide points, touch panels, or touch screens by building, molding, manufacturing. The touch pads, glide points, touch screens, or touch panels, can also be placed at alternative locations on any of the mouse systems.

Abstract: A method and apparatus for smoothing cursor motion on a display is provided. In an embodiment of the invention, an indication of an amount of movement of an operation instrumentality of a pointing device in a first direction is received from the pointing device. At a reporting time, a predetermined portion of the amount of movement of the pointing device in the first direction is reported to a computer. In at least one subsequent reporting time, a remainder of the amount of the movement in the first direction is reported. Preferably, at least two reports are sent to the computer for each time an indication of the amount of movement of the pointing device is received from the pointing device. In addition to smoothing of cursor motion, higher rates of movement of the operation instrumentality can be reported for a given bit length of the reports as the total amount of movement is divided into separate smaller reports.

Abstract: Methods and apparatus for compensating the effects of display signal propagation delay in a display panel are disclosed. The apparatus comprises circuitry in addition to conventional display driver circuitry for delaying display line timing signals by an amount approximating the delay found in corresponding display lines. By delaying display line timing signals, for example in a column driver, by an time approximately equal the delay experienced in a corresponding row enable signal line, capacitors associated with the display pixels charge more fully resulting in a more vivid display image. Methods for compensating the effects of display signal propagation delay involve generating a plurality of delayed display timing signals and activating display lines in response to those delayed timing signals.

Abstract: An apparatus and an associated method ensure accurate scoring at a sporting event by associating controls of a score board with the colors worn by the teams, or the positions of the goals (e.g., goals in a basketball tournament). In one implementation, the apparatus alerts a scorekeeper when a play condition reaches a threshold.

Abstract: When a voltage level of a pulse-cut first clock signal inputted to a first clock terminal is reversed in the state where a first transistor is turned on and a second transistor is turned off, an anti-reversal circuit including a seventh transistor and an eighth transistor supplies a high voltage VDD to a node n2. In this way, a floating state of the node n2 is avoided, and the voltage level of the node n2 is prevented from being reversed. Accordingly, the second transistor will not be turned on in the interval, whereby electric potential of an output signal is stably maintained.

Abstract: A method for driving a plasma display panel is provided in which dynamic pseudo contours are reduced and pattern noises are suppressed so that image quality of an animation display is improved. In the method, a superposition method is applied only to the area of a display image, which is made of pixels having a gradation at which only one of plural subframes having the same luminance weight concerning the superposition method is lighted and has a luminance gradient within a preset value range between the neighboring pixels.

Abstract: A control circuit receives the digital input data of n-bit and controls horizontal drivers so as to provide a liquid crystal panel with voltage corresponding to the input data during a 1H cycle based on standard voltage. In addition, the control circuit creates gradation data by inverting each bit of the input data and controls the horizontal drivers so as to provide the liquid crystal panel with voltage in response to the output gradation data during the subsequent 1H cycle. In this case, gradation-? correction voltage relation is symmetrical with respect to a point in the center between the top gradation step and the bottom gradation step.

Abstract: The invention relates to a container configured to electronically display images and simulate a photo album storage device, including a storage housing having a bottom and a plurality of upwardly extending sides to concurrently store a plurality of removable digital memory storage devices. A display cover is coupled to the storage housing and includes a visual display device configured for open and closed positions. The display cover encloses the storage housing when in a closed, storage mode and exposes the display device when in an open, viewing mode. An electronic processing device, coupled to the storage housing and the visual display device is configured to read and display at least one of many contained removable memory storage devices and to display digital image data contained on the storage device.

Abstract: In the reset step for initializing an amount of wall charge in each of the plurality of discharge cells that define each of the picture elements in a plasma display panel, the number of reset discharges that are caused to occur in the discharge cells that handle the emission of light of at least one color within the picture element is greater than the number of reset discharges that are caused to occur in the discharge cells that handle the emission of light of the other color(s). The plasma display panel drive method provides a stable electrical discharge effect while increasing contrast.

Abstract: A plasma display panel comprises a selective row electrode Z extending between row electrode pairs (X, Y) adjacent to each other in a column direction. A discharge cell is divided by into two by a second transverse wall 15B of a partition wall 15 defining the periphery of the discharge cell: a display discharge cell C1 provided opposite transparent electrodes Xa, Ya of the paired row electrodes X, Y for a sustaining discharge, and a reset and addressing discharge cell C2 provided opposite the selective row electrode Z for a reset discharge and an addressing discharge which are created between the electrode Z and a column electrode D. A clearance r is provided for communication between the display discharge cell C1 and the reset and addressing discharge cell C2.

Abstract: A key switch-replaceable keyboard mounting arrangement. The arrangement includes a keyboard shell having an array of contacts on its inside. Rows of keys are suspended in the keyboard shell and adapted for triggering the contacts to produce a signal. Resilient locating plates are coupled to the keyboard shell at two sides of each row of keys and moved between a first position to hold down the keys in place for operation, and a second position to disengage the keys for a replacement.

Abstract: A computer pointing device, such as a mouse or trackball, includes a reverse cantilever button assembly to match strength-related variations in user hand size. In one embodiment a button assembly is built with two cantilever beams, the fulcrums for each beam being at opposite ends of the button assembly. The stiffness of the two beams can be selected to obtain an increasing, decreasing, or constant force profile necessary to activate the associated electronic switch as one moves along the external surface of the button assembly from the palm end toward the fingertip end. An increasing force profile provides lower actuating force for operators with smaller hands, while providing greater tactile feedback for operators with larger hands.

Abstract: A voltage reference circuit and method for producing a voltage as a reference voltage for a liquid crystal display (LCD) panel. The voltage reference circuit with controllable temperature coefficients includes a logic operation unit and a voltage selection circuit. The logic operation unit receives a command corresponding to the temperature coefficient of an LCD panel and provides a selection signal according to the command. The selection signal is applied to the voltage selection circuit. Depending on the selection signal, the voltage selection circuit generates a selected voltage which is used to produce a reference voltage.

Abstract: By changing circuit connections at predetermined 4 timings, a switch feed through offset cancel circuit which permits canceling fluctuation in output offset of an analog picture image signal voltage due to fluctuation of semiconductor elements characteristics in the circuit. Thereby, a uneven brightness in a form of vertical stripe shape, which deteriorates picture quality, due to fluctuation in switch feed through charges of an offset cancel circuit is eliminated in a TFT LC display device having a buffer amplifier.

Abstract: Rise time in matrix_LED displays is decreased by providing extra current via capacitive (37) of column electrodes (12) to a circuit (39) providing peak currents.

Abstract: In a matrix display device, when cells of first to third colors composing one pixel are first to third cells, the second cell is disposed on one side of the first cell in a signal line alignment direction while disposing the third cell on the other side of the first cell in a scanning line alignment direction, and the first to third cells form the shape of a letter L. One pixel and another pixel adjacent to either side of the former pixel in the scanning line alignment direction are a first pixel in the shape of the letter L and a second pixel in the shape of the letter L and in a state rotating by 180° with respect to the first pixel, respectively.

Abstract: The present invention provides a driving circuit and the driving method for driving gate control lines G—1 . . . G_N. The gate control lines G—1 . . . G_N are evenly divided into L groups. The driving circuit comprises a gate line control logic circuit, a first level shifter module, a second level shifter module and a multipliexer. The first level shifter module is controlled by the gate line control logic circuit, and scans the driving lines D—1 . . . D_K in each time slot to drive the driving lines one by one, wherein L*K=N. The second level shifter module is controlled by the gate line control logic circuit, and scans the L groups in each time frame to select the L groups one by one. The multiplexer is used to connect the driving lines D—1 . . . D_K to the gate control lines of a selected group, and connect the gate control lines of unselected groups to a predetermined power line.

Abstract: A driving method during the reset period of a plasma display, which includes a display panel with a plurality of display units for sealing the inert gas. Each display unit forms an equivalent capacitor and includes a first electrode, a second electrode, and a driving circuit that exerts voltage pulses to the display units to form wall charges on the surfaces of the two electrodes or to reduce the wall charges that have been formed. The method involves applying a first soft erase pulse on the first electrodes of the plurality of display units to reduce the wall charges of the plurality of the display units followed by applying a soft priming pulse on the second electrodes of the plurality of display units to re-generate the wall charges of the plurality of display units.