摘要:
Pixel circuits and an organic electroluminescent display including the same are provided. The pixel circuit includes: an organic light emitting diode; a fifth transistor coupled to a third scan line, a reference power source, and a first node; a first capacitor coupled between the first node and a second node; a second capacitor coupled between the first node and the organic light emitting diode; a fourth transistor coupled to a second scan line, a data line, and the first node; a sixth transistor coupled to a first scan line, a first power source, and the second node; a second transistor coupled to the second scan line, the second node, and a third node; a third transistor coupled to an emission control line, the first power source, and the third node; and a first transistor coupled to the second node, the third node, and the organic light emitting diode.
摘要:
A pixel circuit of a display panel, a method of driving the pixel circuit, and an organic light emitting display device including the display panel. All of a plurality of transistors included in the pixel circuit are NMOS transistors, and the pixel circuit configured to compensate for a voltage change at a source electrode of a driving transistor during light emission.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
Pixel circuits and an organic electroluminescent display including the same are provided. The pixel circuit includes: an organic light emitting diode; a fifth transistor coupled to a third scan line, a reference power source, and a first node; a first capacitor coupled between the first node and a second node; a second capacitor coupled between the first node and the organic light emitting diode; a fourth transistor coupled to a second scan line, a data line, and the first node; a sixth transistor coupled to a first scan line, a first power source, and the second node; a second transistor coupled to the second scan line, the second node, and a third node; a third transistor coupled to an emission control line, the first power source, and the third node; and a first transistor coupled to the second node, the third node, and the organic light emitting diode.
摘要:
A pixel circuit of a display panel, a method of driving the pixel circuit, and an organic light emitting display device including the display panel are provided. All of a plurality of transistors used in the pixel circuit are NMOS transistors, and the pixel circuit is configured to compensate for a voltage change at a source electrode of a driving transistor during light emission.
摘要:
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.
摘要:
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.