Abstract: An organic light emitting display includes pixel circuits at crossing regions of scan lines, data lines, first emission control lines, and second emission control lines, a pattern detecting unit for detecting a specific pattern of an image to be displayed, an emission control line driver for supplying a first emission control signal to the first emission control lines, and for supplying a second emission control signal to the second emission control lines, and a timing controller for controlling the emission control line driver so that a supply order of the first and second emission control signals corresponds to whether the specific pattern is detected.

Abstract: A touch screen display is disclosed. In one aspect, the touch screen display includes a plurality of first touch electrodes each including first and second ends opposing each other and a plurality of second touch electrodes crossing the first touch electrodes. The touch screen display also includes a first voltage line providing a voltage, a first signal line providing a touch driving signal, and a plurality of first switching units respectively connected to the first touch electrodes. Each of the first switching units is electrically connected to the first voltage line, the first signal line, and the first end of a corresponding first touch electrode. Each of the first switching units alternately provides one of the voltage and the touch driving signal to the corresponding first touch electrode.

Abstract: A display device includes: a display unit including pixels coupled to scan lines for transmitting scan signals, data lines for transmitting data signals, and light emission control lines for transmitting light emission control signals; a scan driver; a data driver; and a light emission driver. Each pixel includes: an OLED; a driving transistor to transmit a driving current corresponding to a data signal to the OLED; a first transistor to transmit the data signal to the driving transistor according to a first scan signal; a second transistor to apply a first power source voltage to a first electrode of the driving transistor according to a second scan signal, during an initialization period for initializing a gate electrode voltage of the driving transistor; and a capacitor including a first electrode coupled to a gate electrode of the driving transistor and a second electrode coupled to a first power source supply.

Abstract: A mother substrate for an organic light-emitting display apparatus. The mother substrate has a panel area and a peripheral area surrounding the panel area, pixels disposed in a display area of the panel area, pads that are disposed in a non-display area of the panel area and are coupled to the pixels, test wirings disposed in the peripheral area, a local buffer electrically connected to the test wirings, a bridge wiring connecting the local buffer to one of the pads, and a dummy resistance layer having one end in contact with the bridge wiring and another end in contact with one of the test wirings.

Abstract: A mother substrate for an organic light-emitting display apparatus. The mother substrate has a panel area and a peripheral area surrounding the panel area, pixels disposed in a display area of the panel area, pads that are disposed in a non-display area of the panel area and are coupled to the pixels, test wirings disposed in the peripheral area, a local buffer electrically connected to the test wirings, a bridge wiring connecting the local buffer to one of the pads, and a dummy resistance layer having one end in contact with the bridge wiring and another end in contact with one of the test wirings.

Abstract: A pixel includes an organic light emitting diode and a pixel control circuit. The pixel control circuit includes a first transistor, a second transistor, and a third transistor. The first transistor controls an amount of current to the organic light emitting diode from a first power source based on a voltage applied to a first node. The second transistor is coupled between the first node and a data line and turns on when a scan signal is supplied to a scan line. The third transistor is coupled between the first power source and a second node that is a common terminal of first and second capacitors, which are coupled in series between the first node and the first power source. In operation, the third transistor turns on when a first control signal is supplied to a first control line.

Abstract: A display device including: a plurality of first electrodes each corresponding to a plurality of light emitting groups on a plurality of pixels including organic light emitting diodes (OLEDs) and a plurality of second electrodes formed on the plurality of first electrodes, having an insulating layer therebetween, wherein a plurality of touch sensing signals are applied to each of the plurality of first electrodes during a non-light emitting period of each of the plurality of light emitting groups and a touched position is determined in response to a magnitude in voltage between the first and second electrodes by a touch from the outside.

Abstract: A pixel includes an OLED between first and second power supplies; a first transistor between the first power supply and the OLED, including a gate electrode connected to a first node; a second transistor between the first transistor and a data line, including a gate electrode connected to a current scanning line; a third transistor between the first transistor and the first node, including a gate electrode connected to the current scanning line; a fourth transistor between the first transistor and the OLED, including a gate electrode connected to a light emitting control line; a fifth transistor between the second or third power supply and the first node, including a gate electrode connected to a previous scanning line; a sixth transistor between the second or third power supply and the fourth transistor, including a gate electrode connected to the previous scanning line.

Abstract: An organic light emitting display device includes: a scan driver for driving one or more scan lines and emission control lines; a data driver for sequentially providing j data signals to each of a plurality of output lines in each horizontal period; a demultiplexer for transmitting the j data signals to j first data lines, the demultiplexer being coupled to the output lines; a plurality of pixels at crossing regions of the scan lines and second data lines extending in a direction crossing the scan lines; and a common circuit unit for controlling voltages of the second data lines coupled to the pixels by using a reference voltage and an initial voltage and the data signals, the common circuit unit being coupled between the first data lines and the second data lines.

Abstract: A pixel includes an OLED between a first power supply and a second power supply; a first transistor between the first power supply and the OLED, in which a gate electrode is connected to a first node; a second transistor between a first electrode of the first transistor and a data line, in which a gate electrode is connected to a current scanning line; a third transistor between a second electrode of the first transistor and the first node, in which a gate electrode is connected to the current scanning line or a control line; a fourth transistor between the second electrode of the first transistor and the OLED, in which a gate electrode is connected to a light emitting control line; and a fifth transistor between a connecting node of the fourth transistor and the OLED and the second power supply or a third power supply.

Abstract: A method of driving an organic light emitting display includes dividing one frame into a plurality of subfields, setting a plurality of pixels to include first pixels positioned in odd horizontal lines and second pixels positioned in even horizontal lines, and setting pixels that realize low grayscales in an emission state in one of the plurality of subfields, such that the first pixels have emission states in different subfields than emission states of the second pixels, when the low grayscales are realized.

Abstract: A pixel of the present invention can display an image having uniform luminance. The pixel includes: an organic light emitting diode; a first transistor for controlling the amount of current flowing from a first power supply connected to a first electrode to the organic light emitting diode; a first capacitor having a first terminal connected to a data line; a third transistor positioned between a second node connected to a second terminal of the first capacitor and a first node connected to a gate electrode of the first transistor, and turned on when a first scan signal is supplied to the first scan line; and a fifth transistor connected between the second node and the data line, and turned off when an emission control signal is supplied to an emission control line.

Abstract: An organic light emitting display device capable of improving display quality and a driving method of the organic light emitting display device are provided. The organic light emitting display device includes pixel circuits and organic light emitting diodes (OLEDs) each in pixel regions defined by scan lines and data lines, and a switching unit in one of the pixel regions and coupled between one of the pixel circuits and a plurality of the OLEDs from different ones of the pixel regions. The driving method includes charging pixel circuits with voltages corresponding to data signals, and alternately coupling each of the pixel circuits to different ones of a plurality of organic light emitting diodes (OLEDs) from different pixel regions defined by scan lines and data lines.

Abstract: A buffer and an organic light emitting display using the same that reduces (or prevents) a signal of the organic light emitting display from being delayed by improving an output signal of the buffer.

Abstract: The present invention relates to a light emitting display, and display panel and driving method thereof. The display panel includes a plurality of data lines for transmitting a data signal, a plurality of scan lines for transmitting a selection signal, and a plurality of pixels coupled to the data lines and the scan lines. The pixel includes at least two emitters for emitting different colors from each other in response to an applied current, and a driver for receiving the data signal while the selection signal is applied and outputting a first current corresponding to the data signal. The driver outputs the first current to at least the first and second emitters for emitting substantially the same color among the emitters formed in the pixels.

Abstract: A method of driving an organic light emitting display capable of providing a sufficient (e.g., a sufficiently long) data writing period and/or threshold voltage compensating period is provided. The method includes supplying scan signals to odd scan lines in a writing period of an odd frame set to be in a non-emission state, and supplying scan signals to even scan lines in a writing period of an even frame set to be in the non-emission state.

Abstract: A pixel having a simplified structure can compensate for the threshold voltage of a driving transistor thereof. The pixel includes an organic light emitting diode (OLED) having a cathode electrode coupled to a second power source, a storage capacitor coupled between a data line and a first node, a second transistor having a first electrode coupled to a first power source, a second electrode coupled to an anode electrode of the OLED, and a gate electrode coupled to the first node, a first transistor coupled between the first node and the second electrode of the second transistor, a gate electrode of the first transistor being coupled to a current scan line, and a third transistor coupled between the second electrode of the second transistor and the anode electrode of the OLED, a gate electrode of the third transistor being coupled to a control line.

Abstract: An organic light emitting display includes pixel circuits at crossing regions of scan lines, data lines, first emission control lines, and second emission control lines, a pattern detecting unit for detecting a specific pattern of an image to be displayed, an emission control line driver for supplying a first emission control signal to the first emission control lines, and for supplying a second emission control signal to the second emission control lines, and a timing controller for controlling the emission control line driver so that a supply order of the first and second emission control signals corresponds to whether the specific pattern is detected.

Abstract: A pixel and an organic light emitting diode (OLED) display using the pixel are disclosed. The pixel includes a driving transistor for transmitting a driving current, an organic light emitting diode (OLED) receiving a first portion of the driving current, and a bypass transistor receiving a second portion of the driving current.

Abstract: A pixel which allows compensating a threshold voltage of a driving transistor and a mobility deviation is provided. The pixel includes an organic light emitting diode connected between a first power supply and a second power supply, a first transistor connected between the first power supply and the organic light emitting diode, wherein the gate electrode of the first transistor is connected to a first node, a second transistor connected between the first node and the data line, wherein the gate electrode of the second transistor is connected to the scanning line, a third transistor connected between an access node of the first transistor and the organic light emitting diode, and the second power supply, that is turned on during the scanning period which the second transistor is turned on; and, first and second capacitors connected between the first power supply and the first node, wherein an access node of the first and second capacitor is connected to an access node of the first and third transistor.