Abstract: Disclosed is a light emitting display device which includes test pads for respective pixels to efficiently inspect an open or short of a circuit, that is, a short-circuiting or a breaking of wire.

Abstract: An organic light emitting diode (OLED) display according to the present invention includes: a pixel portion wherein an organic light emitting diode including a pixel electrode, an organic emission layer, and a common electrode is formed, and a periphery portion surrounding the pixel portion and having a plurality of common voltage lines applying a common voltage to the common electrode. The common voltage lines include a plurality of common voltage pads to which the common voltage is applied from an external source, a common voltage contact portion overlapping an end of the common electrode and contacting the common electrode, a common voltage connection portion connecting a common voltage pad and the common voltage contact portion. A width of the common voltage contact portion is larger than that of the common voltage connection portion.

Abstract: An OLED display device includes a substrate; an organic light emitting element having a first electrode formed on the substrate, an organic emission layer disposed on the first electrode, and a second electrode disposed on the organic emission layer; a common power bus line disposed between the organic light emitting element and an edge of the substrate on the substrate and electrically connected with the first electrode; a driving power bus line neighboring the common power bus line on the substrate, disposed between the organic light emitting element and the edge of the substrate, and electrically connected with the second electrode extended from a portion corresponding to the organic emission layer; and a connection wire made of the same material as the second electrode on the common power bus line, separated from the second electrode, and electrically connected with the common power bus line.

Abstract: An electroluminescent display device includes a display panel having scan lines, data lines, and pixel circuits. The pixel circuit includes an electroluminescent element having a first electrode layer, a first insulation film, and an emitting layer for displaying images. A driving circuit is coupled to the electroluminescent element. The first electrode layer is superimposed on a power source line, a scan line, or both, with a second insulation film therebetween.

Abstract: A pixel for an organic light emitting diode display is disclosed. The pixel includes a capacitor configured to be charged with a voltage which compensates for the threshold voltage and mobility of the transistor driving the organic light emitting diode of the pixel.

Abstract: A pixel driving circuit for a display device in which a plurality of gate lines and data lines are arranged. The pixel circuit is disposed at an intersection between the gate lines and data lines, and includes at least two light emitting elements for emitting certain colors within a certain section; an active device commonly connected to the at least two light emitting elements to drive the at least two light emitting elements; and an power source control part connected to the active device to transmit driving control signals for the at least two light emitting elements to the active device. The active device sequentially drives the at least two light emitting elements in the certain section per a certain period of time in response to the power source signals transmitted through the power source control part, and the at least two light emitting elements are sequentially emitted.

Abstract: An organic light emitting display is disclosed. According to some aspects, the display includes a substrate having a display region and a peripheral region that surrounds the display region. The display further includes a pixel in the display region, and a contact unit in the peripheral region. The contact unit is configured to receive a common power signal from an external power source. A wiring line unit on the substrate provides a driving signal to the pixel. The pixel includes a first electrode provided on the substrate, an organic light emitting layer provided on the first electrode, and a second electrode that protrudes toward the contact unit on a plane to be electrically coupled to the contact unit. As a result, the area in which the second electrode overlaps the wiring line unit in the peripheral region is reduced and the parasitic capacitance that may be generated between the second electrode and the wiring line may be reduced.

Abstract: An pixel of an organic light emitting display device includes: an organic light emitting diode (OLED); a second transistor for supplying a current to the OLED; a first transistor coupled between a data line and a gate electrode of the second transistor, the first transistor being turned on when a scan signal is supplied to its gate electrode; a third transistor for supplying an initialization voltage to a drain electrode of the second transistor, the third transistor being turned on when a control signal is supplied to its gate electrode; a fourth transistor coupled between the drain electrode of the second transistor and a first power supply, the fourth transistor being turned-off when a light emitting control signal is supplied to its gate electrode and turned-on when the light emitting control signal is not supplied; and a storage capacitor coupled between the source and gate electrodes of the second transistor.

Abstract: A driver and a display device using the same may be provided. The driver, according to an exemplary embodiment includes at least one logic unit, receiving a plurality of clock signals and a plurality of input signals, to generate and sequentially transmit output signals to a plurality of pixel rows included in a display unit, and a buffer unit, receiving a plurality of control signals, to generate and simultaneously transmit the output signals of a same waveform to a plurality of pixels included in the display unit, wherein the at least one logic unit is supplied with a logic power source voltage, and the buffer unit is supplied with a buffer power source voltage, the buffer power source voltage being different from the logic power source voltage.

Abstract: An organic light emitting display device of the present embodiments includes: a plurality of pixels positioned at intersections of scan lines, data lines, and emission control lines; a pixel unit, including the plurality of pixels, and divided into two or more blocks; a scan driver sequentially supplying scan signals to the scan lines; a data driver supplying data signals to the data lines in synchronization with the scan signals; and two or more emission drivers connected with emission control lines in the blocks, in which each emission driver supplies emission control signals to emission control lines connected thereto, and at least one or more emission control signals are supplied in each block simultaneously.

Abstract: A pixel capable of displaying an image with uniform brightness. The pixel includes an organic light emitting diode (OLED), a first transistor for controlling an amount of current supplied from a first power source coupled to a first electrode to the OLED, a second transistor coupled between a gate electrode of the first transistor and an initial power source to be turned on when a second scan signal is supplied to a second scan line, a first capacitor coupled between the gate electrode of the first transistor and the first power source, and a second capacitor whose first terminal is coupled to a first electrode of the first transistor.

Abstract: The organic light emitting display includes a plurality of pixels positioned at intersections of scan lines, emission control lines, and data lines, a scan driver for sequentially supplying scan signals to the scan lines at a first driving frequency in order to select the pixels in units of horizontal lines, and an emission driver for sequentially supplying emission control signals to the emission control lines at a second driving frequency different from the first driving frequency in order to control emission of the pixels.

Abstract: A stereoscopic display device includes a scan driver, a data driver, a light emission driver, a display unit including a first region and a second region with pixel lines, and a controller. The light emission driver is configured to transmit a plurality of first light emission control signals to pixels to emit light in the first region and a plurality of second light emission control signals to pixels to emit light in the second region after corresponding scan signals are transmitted to respective pixels in the first and second regions, the first light emission control signals being separated from corresponding scan signals by respective first periods, and the second light emission control signals overlapping in time with corresponding scan signals.

Abstract: There is provided a method of driving an organic light emitting display so that the organic light emitting display may be driven at a low driving frequency. The organic light emitting display includes pixels coupled to odd and even scan lines. The organic light emitting display is driven during frames. Each of the frames includes first, second, third, and fourth frame periods. The method includes: sequentially supplying scan signals to the odd scan lines in the first and third frame periods; and sequentially supplying scan signals to the even scan lines in the second and fourth frame periods. The pixels are in a non-emission state in the first and third frame periods.

Abstract: There is provided a method of driving an organic light emitting display capable of minimizing or reducing the amount of instantaneously current flowing in the display that is driven in a concurrent emission method. The method includes setting pixels included in j blocks of a panel in a non-emission state, charging the pixels with voltages corresponding to data signals, and emitting light by the pixels in units of horizontal lines respectively included in the j blocks to correspond to the charged voltages.

Abstract: An organic light emitting display includes a pixel unit including pixels coupled to scan lines, control lines, data lines, and first and second power sources, a control line driver for providing control signals to the pixels through the control lines, a scan driver for providing scan signals to the pixels through the scan lines, a data driver for providing data signals to the pixels through data lines, and a first power source driver for applying the first power source to the pixels. The first power source driver sets the first power source as a voltage in a low level in a first period in one frame period. The first power source is set as a high level voltage in second and third periods in one frame period. Therefore, it is possible to compensate for deviation in the threshold voltages generated between the driving transistors included in the pixels.

Abstract: There is provided an organic light emitting display device for preventing short and voltage drop between lines to improve yield. The organic light emitting display device includes: a plurality of sub-pixels located at crossing regions of a plurality of gate lines and a plurality of data lines; first power lines for supplying a voltage for driving the sub-pixels, each of the first power lines being shared by two adjacent sub-pixels from among the plurality of sub-pixels; and initial power lines for supplying an initial power to the sub-pixels, each of the initial power lines being shared by the two adjacent sub-pixels and located between the two adjacent sub-pixels.

Abstract: An organic light emitting display device capable of minimizing an IR drop of pixel power sources supplied to an organic light emitting display panel is taught. The organic light emitting display device includes an organic light emitting display panel comprising a first side on which an image is displayed and a second side that faces the first side and a plurality of first and second power source pads provided at two or more edges of the second side to receive first and second pixel power sources in at least two different directions; and a pixel power source supplying flexible printed circuit board (FPCB) provided on the second side of the organic light emitting display panel to comprise a plurality of pads electrically coupled to the first and second power source pads and to supply the first and second pixel power sources to the organic light emitting display panel.

Abstract: A transparent organic light-emitting display device has an improved transmittance and a reduced voltage drop in an opposite electrode. The organic light-emitting display device includes: a first substrate having a transmitting region and a plurality of pixel regions separated from each other by the transmitting region interposed between the pixel regions; a plurality of pixel electrodes being located at the pixel regions, respectively; an opposite electrode facing the pixel electrodes and being at the transmitting region and the pixel regions; a second substrate facing the opposite electrode and being bonded to the first substrate; a first conductive unit being between the second substrate and the opposite electrode, opposite ends of the first conductive unit contacting the second substrate and the opposite electrode, respectively; and a second conductive unit facing the first conductive unit and contacting the opposite electrode that is between the first conductive unit and the second conductive unit.

Abstract: An organic light emitting display having first pixel power source lines receiving a pixel driving voltage from first power supply sources and second pixel power source lines arranged between the first pixel power source lines and receiving a pixel driving voltage from second power supply sources, the light emitting diode of each of a plurality of pixels included in an image display unit is divided into two, and the divided light emitting diodes are coupled to the different pixel power source lines so that brightness non-uniformity of the image display unit caused by the IR drops of the pixel power source lines is reduced or prevented.