Abstract: The present invention discloses an LCD driver and LCD driving method for improving brightness uniformity, wherein a detection-count circuit is used to calculate a number of waiting voltage offsets of each one of data electrodes during a scanning period, convert the number of waiting voltage offsets into an offset time, shift a data electrode to an intermediate potential during the offset time, and shift the data electrode to a potential for a next piece of data after the offset time is completed. Thereby, the present invention can reduce LCD brightness non-uniformity and promote LCD quality.

Abstract: A tiled display comprising: a plurality of display tiles aligned so that they provide the emissive image area; each display tile including: a plurality of light-emitting pixels arranged in groups of pixels; a plurality of sequentially arranged pixel drive circuits and each pixel drive circuit being electrically connected to a particular group of pixels for controlling the light emission of such pixels; one or more signal communication line(s) for providing data for controlling the operation of each pixel drive circuit; and each pixel drive circuit controlling the light emission of its corresponding group of pixels and providing information to the next sequential pixel drive circuit to cause such next sequential pixel drive circuit to respond to its corresponding data to control the operation of its group of light-emitting pixels and repeating this operation until a predetermined number of pixel drive circuits have caused the desired light emission.

Abstract: In a display device using an RGB time division drive system in which RGB data to be supplied to display pixels of three colors RGB are subjected to time-division multiplexing and input to a liquid crystal panel unit, (1) data are input to the liquid crystal panel unit alternately in the order of RGB and BGR every line signal, and a selection signal SC which is in the on-state at a break of one line period is kept in the on-state until the next line period. In addition, (2) over a partial non-display period in partial display, selection signals SA, SB and SC are always in the off-state and an equalize signal EQG is in the on-state.

Abstract: The display device of the invention includes a light emitting element, a monitoring light emitting element, a constant current source which supplies a constant current to the monitoring light emitting element, a time-based measurement circuit which measures time to supply a power source to the light emitting element, a memory circuit which stores V-I characteristics with time of the light emitting element, a correction data forming circuit which forms correction data based on an output of the monitoring light emitting element, an output of the time-based measurement circuit, and the characteristics with time, and a power source circuit which corrects a power source potential based on the correction data and supplies the corrected power source potential to the light emitting element.

Abstract: A picture quality controlling method including determining a charge characteristic compensation data of a link sub-pixel electrically connected to a defect sub-pixel and a normal sub-pixel, judging a first and second display surfaces different in brightness from each other, determining a first compensation data which compensates a brightness of the first display surface, modulating the test data using the first compensation data, determining a second compensation data that corrects a brightness of a bordering part inclusive of a part of the first display surface and a part of the second display surface between the first and second display surfaces, adding the first and second compensation data, storing the charge characteristic compensation data and the added compensation data at a memory; adjusting a video data to be displayed in the link sub-pixel using the charge characteristic compensation data, and adjusting video data to be displayed in the first display surface and the bordering part using the added co

Abstract: A system to generate a wakeup signal for a low power device: The system includes a capacitor, the capacitance of which changes when a user touches the device by placing a finger or hand near a certain location on the device. The capacitor is cyclically charged to a pre-established value and then discharged. The time required to charge and discharge the capacitor is a function of the capacitor size and thus, a function of whether or not the operator is touching the device. The number of charge-discharge cycles that occur in a certain period of time is counted. If the number is relatively small, it indicated that a user is touching the device and a wake signal is generated. If the number is relatively large, it means that the user is not touching the device and no wake signal is generated. Thus, in the embodiments shown, a wake signal is generated when the operator touches the device.

Abstract: An image display apparatus of this invention includes a neighborhood data integration section 20 which integrates image data on respective colors corresponding to electron emitting devices proximate to an electron emitting device to be driven, and corresponding to a phosphor contributing to a halation, an adder 6 adds the integrated image data R22, G22, and B22 on the respective colors, a coefficient operation section 7 which multiplies an addition result by a predetermined coefficient according to a luminous intensity of the halation, an adder 8 which adds outputs R23, G23, and B23 obtained by inverting a sign of multiplication results to image data R14, G14, and B14 corresponding to the electron emitting device to be driven, respectively, and a comparator 11 which compares an addition result with zero in magnitude, and which outputs a driving signal R25 for the respective colors.

Abstract: The invention relates to a portable digital Computer with an in-built coupling device which is arranged in order to receive mouse Signals from a radio mouse provided with a battery and fed by said battery. Said digital Computer comprises an in-built current source and an electric interface which is installed in a fixed manner and which is connected to the current source, the electric interface being arranged such that the battery can be charged. The invention also relates to an input device for a portable digital Computer comprising a radio mouse and an additional slide pad which is arranged on the top side of said radio mouse. The invention further relates to a special coupling bay comprising a recess which is a notebook.

Abstract: A circuit and method for driving pixels in an organic electroluminescent display that reduces the number of wirings of a compensation circuit for addressing brightness non-uniformity. The pixel driving circuit includes an organic electroluminescent device that emits light corresponding to an amount of a current being applied. A first transistor is connected to a power supply voltage and applies the current corresponding to a data voltage to the organic electroluminescent device. A first capacitor stores the data voltage, and a threshold voltage compensation unit stores a threshold voltage of the first transistor. A second transistor transmits the data voltage from a data line in response to a selection signal from an nth scan line. A switching unit electrically disconnects a second primary electrode of the first transistor from the organic electroluminescent device while the threshold voltage is stored in the threshold voltage compensation unit in response to a control signal.

Abstract: An image display system includes: an image data output device that multiplexes and outputs raster data and compressed moving picture data; and an image display device that is connected to the image data output device through a transmission line and displays an image on the basis of image data output from the image data output device. The image display system is capable of displaying a high-quality moving picture on the image display device by reducing the amount of image data flowing through the transmission line without imposing excessive load on the image data output device, the image display device, the image data output device, an image processing program, and a computer-readable recording medium having the image processing program recorded therein.

Abstract: A display apparatus including a display, a video processor to output an video signal to the display, a power supply to output a power signal to turn on/off the display, and a controller to control at least one of the power supply and the video processor to make a sequence difference between an enable/disable time of the video signal outputted form the video processor and an on/off time of the power signal outputted from the power supply be within a predetermined range. The display apparatus and a control method thereof, in which the sequence difference is adjusted to be within a predetermined range.

Abstract: An optical switch, e.g., a display cell based on layer displacement or layer break up having at least two different states, in which one fluid, e.g. oil, in a first state adjoins at least a first support plate, and in the second state, another fluid at least partly adjoins the first support plate. Part of an otherwise homogeneous electrode is removed to realize oil motion control.

Abstract: A keyboard apparatus includes a group of switches, a key having a corresponding group of plungers, and a chassis structure including a panel and a post. The post projects upward from the panel to support the key for manual movement pivotally into multiple actuated positions in which the plungers actuate the switches. The panel has a group of apertures through which the plungers are movable into actuating engagement with the switches upon such multi-directional movement of the key.

Abstract: In a plasma display device, a source of a first transistor S1 is coupled to an X electrode, and a drain thereof is coupled to a cathode of a diode D1. An anode of the diode D1 is coupled to a first power source for supplying a first voltage V1. A drain of the first transistor S1 is coupled to a drain of a second transistor S2 through a capacitor, and a source of the second transistor S2 is coupled to a ground source for supplying a second voltage of 0 V. A third transistor S3 has a source coupled to the drain of the second transistor S2 and a drain coupled to a third power source for supplying a third voltage V2, and a fourth transistor S4 has a drain coupled to the X electrode and a source coupled to the drain of the second transistor S2.

Abstract: An active matrix organic electro luminescence display in which two opposite pixels are formed in one pixel portion to achieve a high aperture ratio and to facilitate a fabrication process. The organic electro luminescence display is constructed with gate lines, data lines, and power lines which are formed on an insulating substrate, and pixel regions which is defined by the gate lines, the data lines and the power lines, wherein each of the pixel regions includes two opposite pixels, and the pixel regions are arranged in a matrix form.

Abstract: A system for enabling a tablet input object is described. A tablet input object can take various inputs from touch, a mouse, and a pen and send their information to an application.

Abstract: Directional haptic feedback for a haptic feedback interface device. A haptic feedback interface device, in communication with a host computer, includes a housing physically contacted by a user operating the interface device, and a plurality of actuators producing inertial forces when the actuators are driven by control signals. Each of the actuators includes a rotatable eccentric mass positioned offset on a rotating shaft of the actuator, where the actuators are rotated simultaneously such that centrifugal forces from the rotation of masses combine to output the inertial forces substantially only along a single axis having a desired direction approximately in a plane of rotation of the masses.

Abstract: A shift register and a display device having the shift register are provided. The shift register has a plurality of stages which sequentially generate output signals in synchronization with a plurality of clock signals. Each of the stages includes an input unit for receiving a scan start signal or an output signal from a previous stage and outputting the scan start signal or the output signal as a first voltage, a first unit for passing at least two clock signals, a second unit for outputting at least one of the at least two clock signals or a second voltage in response to an output signal from a next stage, and an output unit for generating an output signal synchronized with at least one of the at least two clock signals in response to the outputs of the input unit and the second unit.

Abstract: A liquid crystal panel includes a gate line; a data line crossing the gate line to define a pixel region; a common line parallel to the gate line; a first switching part in the pixel region for applying a first voltage from the data line to the pixel region; and a second switching part in the pixel region for applying a second voltage from the common line to the pixel region, wherein the first and second switching parts are simultaneously switched on through the gate line.

Abstract: Column drivers for graphics displays can be arranged as stacked amplifiers with various switching circuits arranged in a charge sharing topology. The apparatus includes an upper and lower amplifier circuit, an input switching circuit, and an output switching circuit. The upper and lower amplifier circuits drive column lines can be swapped during operation by the input and output switching circuits. During a charge share operation, the outputs of the amplifiers are coupled to a common voltage via the output switching circuit, while the transistors from the output stage of each amplifier is reconfigured for charge sharing. Minimally sized transistors are utilized inside the output stage of the amplifiers for charge share configuration. Since the existing transistors from the output stage are utilized for the charge sharing operation, additional space savings and power reductions can be realized.