| CPC G09G 3/3233 (2013.01) [G09G 3/2007 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/0262 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0257 (2013.01); G09G 2320/045 (2013.01); G09G 2320/064 (2013.01); G09G 2330/021 (2013.01)] | 16 Claims |
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1. A pixel circuit comprising:
a first voltage node to which a pixel driving voltage is applied;
a second voltage node to which a cathode voltage that is less than the pixel driving voltage is applied;
a driving element including a first electrode to which the pixel driving voltage is applied, a gate electrode connected to a first node, and a second electrode connected to a second node;
a light emitting element including an anode electrode and a cathode electrode, the light emitting element configured to be driven by a current from the driving element;
a capacitor connected between the first node and the second node;
a first switch element connected between a data line to which a data voltage is applied and the first node, the first switch element configured to be turned on in response to a first gate signal;
a second switch element connected between the second node and the second voltage node, the second switch element configured to be turned on in response to a second gate signal;
a third switch element connected between a third voltage node to which an initialization voltage is applied and the first node, the third switch element configured to be turned on in response to a third gate signal; and
a fourth switch element connected between the second node and the anode electrode of the light emitting element, the fourth switch element configured to be turned on in response to a fourth gate signal,
wherein the cathode electrode of the light emitting element is connected to the second voltage node.
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