Abstract: A method for driving an organic light emitting display (OLED) panel having a plurality of organic light emitting diodes is provided. The organic light emitting diodes are coupled to a plurality of segment lines and a plurality of common lines in a matrix structure. The organic light emitting diodes coupled to the same common lines are divided into a plurality of groups according to colors of the OLED panel. Driving currents are provided to the organic light emitting diodes of the groups according to a plurality of pulse width modulation (PWM) manners. The PWM manners generate waveforms having pulse width corresponding to grayscale in a period, wherein each PWM manner corresponds to different colors of the OLED panel.

Abstract: An output enable signal transformation device for a gate driver in an LCD device includes a reception terminal coupled to a timing generator of the LCD device for receiving an enable synchronization signal, an enable clock signal and a plurality of enable control signals generated by the timing generator, a shift register module coupled to the reception terminal for shifting the enable synchronization signal according to the enable clock signal, a multiplexer module coupled to the shift register module and the timing generator for generating a plurality of output enable signals according to the enable synchronization signal and the plurality of enable control signals, and an output terminal coupled to the multiplexer module and a logic circuit of the gate driver for outputting the plurality of output enable signals to the logic circuit.

Abstract: An organic light emitting display and an image compensation method improves the Long Range Uniformity (LRU) of the output image by displaying the identical image when the identical image is input to each pixel, by measuring the luminance, chromaticity coordinates and color temperature after an organic light emitting display panel is fabricated, by storing the compensation values thereof in a memory in the form of a look-up table in advance, and by compensating one of a power supply voltage, a data voltage and a light emission time.

Abstract: A data driver device and a display device, in which the data driver device includes a plurality of data lines; a plurality of first charge-share switches connected between a share line and the plurality of data lines, respectively; and a plurality of second charge-share switches each connected between two adjacent data lines among the plurality of data lines.

Abstract: A display panel is scanned every two lines during a period of binary writing area in the first half of one frame period in partial display (or in small gradation display) and a steady-state current of an output amplifier for buffering gradation signals supplied to the display panel in a non-scanning period in the second half of one frame period is reduced.

Abstract: In an organic electroluminescent (EL) display device, a main display panel and a sub display panel share a data line and a power supply voltage line. The organic EL display device has a top emission type main display panel and a bottom emission type sub display panel in a single display panel. The main display panel is composed of main pixels, each having a compensation circuit for compensating a threshold voltage, and the sub pixel display is composed of basic sub pixels without any compensation circuit. Each of the sub pixels has a boost capacitor which increases a data voltage, and which is disposed between a scan line and a storage capacitor so as to use the same voltage and power supply voltage as the main pixels. The sub pixels having the boost capacitor are disposed in the sub display panel, so that the main and sub display panels share the data line and the power supply voltage line.

Abstract: Output stage and related method applied to source driver/chip of LCD panel. While performing dot polarization inversion for even/odd channels of LCD panel, n-channel and p-channel MOS transistors of symmetric layout are respectively adopted for alternately transmitting a positive polarization signal of higher swing range and a negative polarization signal of lower swing range from corresponding drivers of asymmetric layout to the even/odd channels, such that a layout area for alternating polarizations can be reduced. Also, the invention directly ties inputs of the output drivers to VDD or VSS so as to turn off the drivers for providing high impedance at the even/odd channels when necessary.

Abstract: Methods, computer program products, computing and printing systems for improved screen display and touch input, where an operation/display unit comprises a screen display unit such as a LCD; a touch location detection unit, which is a touch panel that accepts a user's touch operation; a touch decision unit that determines the touch location of the user's touch operation to the touch panel; and a touch execution unit that executes functions according to the user's touch location. If the user's touch location is within the effective area(s) of the operation button(s), then the touch execution unit executes the function allocated to the operation button(s). If the touch location is outside of the effective area(s) of the operation button(s), then the region outside of the operation button(s) is displayed as grayed-out.

Abstract: A separable portable multi-display device is provided. A portable multi-display device includes a main body panel housing having a first display, a sub-panel housing having a second display, and a coupling device for coupling the main body panel housing to the sub-panel housing such that at least one sides of the first display and the second display can contact each other. The panel housings are separable from and connectable to each other, a range of a border between the displays when the panel housings are interconnected being minimized so that the displays can be shown as if it is driven as a single screen.

Abstract: A light sensing circuit capable of enhancing a reliability by lowering a dependency on a temperature change without using a resistor, a backlight control apparatus having the same, and an LCD device having the same. The light sensing circuit includes a first MOS-transistor; and a second MOS-transistor serially connected to the first MOS-transistor between a first power terminal and a ground terminal, in which a second power terminal is connected to each gate terminal of the first MOS-transistor and the second MOS-transistor, and an optical amount detecting terminal is connected to a common connection point between a drain terminal of the first MOS-transistor and a source terminal of the second MOS-transistor.

Abstract: A driver device for driving light emitting elements comprises a data latch having an input coupled to an input signal, a current control circuit having an input coupled to the data latch, and an output coupled to the input of an output stage, the latter being configured to drive the light emitting elements. The driver device has a power control circuit having an input coupled to the output of the data latch and an output coupled to the input of the current control circuit. The power control circuit is configured to control the current control circuit and the latter is configured to deliver a first current when the data inputted to the power control circuit is in a first state and a second current when at least part of the data inputted to the power control circuit is in a second state.

Abstract: This invention realizes reduction in consumption of DC current in a level converter circuit by setting level shifters in an operating state only when necessary in accordance with hierarchical control, in which an output pulse of a level shifter (311) that is constantly in a power-ON state is used to set a level shifter (321) of the next hierarchical level in the operating state, then output pulses of the level shifter (311) and the level shifter (321) are used to generate control pulses LT1 and LT2, which are used to set level shifters (341 to 346) of the next hierarchical level in the operating state, and an output pulse of one of the level shifters is used to set level shifters (351), (352) and (353) of the next hierarchical level in the operating state.

Abstract: An image is updated on a bi-stable display (310) such as an electrophoretic display in successive frame periods by accessing data defining a set of voltage waveforms for the successive frame periods. At least a portion of the bi-stable display is driven during the successive frame periods according to the accessed data so that a longer frame period (FT, 1302, 1304, 1402, 1502, 1602, 1702, 1802) is used during at least a first portion of the voltage waveforms, and a shorter frame period (FT?) is used during at least a second portion of the voltage waveforms. For example, the longer frame period may be an elongated frame period, which is the longest period during which each of the voltage waveforms has a respective constant voltage value.

Abstract: The invention relates to a method and a device for encoding the luminance value of a pixel of a picture into a subfield code word in a display device. It can be applied to every display device using a PWM (Pulse Width Modulation) technology and subfields for displaying video picture. It can be used to compensate for any luminance problem that can be estimated. The general idea of the recursive coding is to encode one sub-field after the other in order to be able to compensate for problems occurring on one sub-field with the other sub-fields. More particularly, the bits of a subfield code word are computed recursively one after the other such that the defects (e.g. line load and/or linearity) in the light emission or luminance generated by a bit of the subfield code word can be compensated by the following bits of the subfield code word.

Abstract: A touch screen device and method of displaying images using display windows and selecting execution menus displayed on the display windows in a touch screen device are provided. The touch screen device includes a screen, a display configured to display images thereon and a detector configured to detect a touch on the screen, and a controller configured to control operation of the touch screen device in accordance with the screen touch detected by the detector. The controller causes two or more display windows to be displayed in an overlapped manner. Further, if the touch is detected on an underlying display window covered by an overlying display window, the controller causes a display form to be changed in response to the touch. That is, if a touch is detected on the display window covered by the overlying display window, the touched display window is displayed as an overlying display window.

Abstract: A method of compensating for network latency in haptics transmission in which the position of a haptic effector is controlled by signals received from a network. The method comprises storing a series of locations of the haptic effector, determining from the series using Fourier Transformation or other means frequencies having a growing amplitude and creating a filter function to eliminate the growing frequencies from output signals directing the force and direction of the haptic effector.

Abstract: A touch screen device and method for displaying and selecting menus thereof are provided. The touch screen device includes a screen with a display for displaying menu images thereon and a detector for detecting a touch on a screen, and a controller which displays one or more menu bars on the screen. Each of the menu bars may have an expanded portion at one end thereof, and the menu bars may be displayed such that the expanded portions are arranged in a zigzag pattern to facilitate menu selection and reduce input errors. When two or more menu bars are erroneously touched, the controller may enlarge and display the touched menus so that a new touch input for the correct menu can be easily made. Thus, menus displayed on the touch screen may be arranged for easy selection, and input errors may be easily corrected.

Abstract: A method of displaying image data, which can mitigate a double-boundary problem and improve MPRT, includes the steps of: receiving a plurality of frame data of a pixel; correcting subframe data of two of the plurality frame data; and sequentially displaying each of the subframe data of the plurality frame data.

Abstract: A method of driving a liquid crystal display device includes multiplying a frame frequency of an inputted current frame to generate a multiplied odd-numbered frame and a multiplied even-numbered frame; determining whether said current frame is a still image frame or a dynamic image frame; detecting an edge area at which a motion blur occurs from the multiplied odd-numbered frame and the multiplied even-numbered frame; converting gray level values of pixels positioned at the detected edge area at the multiplied odd-numbered frame and the multiplied even-numbered frame; and continuously outputting the multiplied odd-numbered still image frame and the multiplied even-numbered still image frame or continuously outputting the multiplied odd-numbered dynamic image frame and the multiplied even-numbered dynamic image frame having the converted gray level values in accordance with the determined result. A liquid crystal display device is also disclosed.

Abstract: An electroluminescence display device includes a first switching device for transferring a data current, which represents a data signal, using a first scan signal, a second switching device for transferring the data current from the first switching device using a second scan signal, a storage device for storing a charge voltage according to the data current transferred from the second switching device, a coupling unit for changing the charge voltage stored in the storage device in accordance with the first scan signal into a changed voltage, driving devices for generating a driving current in accordance with the changed voltage, and an organic light emitting diode for emitting light in accordance with the driving current.