Pixel circuit, display device including the pixel circuit and electronic device including the pixel circuit

A pixel circuit comprising:

• a first transistor including a control electrode connected to a first node, a first electrode receiving a first driving voltage and a second electrode connected to a second node;
• a second transistor including a control electrode receiving a write gate signal, a first electrode receiving a data voltage and a second electrode connected to a third node;
• a third transistor including a control electrode receiving a compensation gate signal, a first electrode connected to the second node and a second electrode connected to the first node;
• a fourth transistor including a control electrode receiving an initialization gate signal, a first electrode receiving an initialization voltage and a second electrode connected to the second node;
• a first capacitor including a first electrode connected to the third node and a second electrode connected to the first node;
• a second capacitor including a first electrode receiving a reference voltage and a second electrode connected to the third node;
• and
• a light emitting element including a first electrode connected to the second node and a second electrode receiving a second driving voltage,
• wherein the first driving voltage and the second driving voltage change during a frame period.

An electronic device comprising:

• a display panel including a plurality of pixel circuits;
• a display panel driver configured to drive the display panel based on an input control signal;
• and
• a processor configured to output the input control signal,
• wherein the pixel circuit includes:
• a first transistor including a control electrode connected to a first node, a first electrode receiving a first driving voltage and as second electrode connected to a second node;
• a second transistor configured to apply a data voltage to a third node in response to a write gate signal;
• a third transistor configured to connect the first node and the second node in response to a compensation gate signal;
• a first capacitor including a first electrode connected to the third node and a second electrode connected to the first node;
• and
• a light emitting element including a first electrode connected to the second node and a second electrode receiving a second driving voltage,
• wherein the first driving voltage has a driving-high voltage or a driving-low voltage, and the second driving voltage has the driving-high voltage or the driving-low voltage, and
• wherein the compensation gate signal is a global signal that is globally applied to at least two pixel-rows with a same timing.