| CPC G09G 3/3266 (2013.01) [G09G 2300/043 (2013.01)] | 20 Claims |
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1. An electroluminescent display apparatus comprising:
a pixel including a driving transistor, an organic light emitting diode connected to the driving transistor, and at least one switching transistor having a semiconductor layer different from a semiconductor layer of the driving transistor and connected to the driving transistor; and
a gate stage connected to the pixel through a gate line and supplying a scan signal to a gate electrode of the switching transistor;
wherein the gate stage includes a scan generating circuit configured to generate the scan signal and a carry generating circuit configured to generate a carry signal by sharing a first clock signal and a second clock signal having different phases with the scan generating circuit, and
wherein the carry generating circuit includes:
a carry output node through which the carry signal is output;
a first carry transistor connected between an input terminal of the first clock signal and the carry output node and turned on or off according to a voltage of a first carry control node;
a second carry transistor connected between the carry output node and an input terminal of a gate high voltage and turned on or off according to a voltage of a second carry control node;
a node controller configured to control a voltage of the first carry control node and a voltage of the second carry control node based on the first clock signal and the second clock signal;
a first carry capacitor connected to the first carry control node and the carry output node; and
a second carry capacitor connected to the second carry control node and the input terminal of the gate high voltage.
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