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

A display device comprising:

• a display panel including a pixel circuit;
• and
• a display panel driver configured to drive the display panel,
• wherein the pixel circuit includes:
• a first transistor including a control electrode connected to a first node, a first electrode configured to receive a first power supply voltage, and a second electrode connected to a second node;
• a second transistor including a control electrode configured to receive a writing gate signal, a first electrode configured to receive a data voltage, and a second electrode connected to a third node;
• a third transistor including a control electrode configured to receive a compensation gate signal, a first electrode connected to the first node, and a second electrode connected to the second node;
• a fourth transistor including a control electrode configured to receive an initialization gate signal, a first electrode connected to the second node, and a second electrode configured to receive an initialization voltage;
• a holding 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 an anode connected to the second node and a cathode configured to receive a second power supply voltage.

An electronic device comprising:

• one or more processors configured to provide an input control signal and input image data;
• a memory device configured to store data information for an operation of the one or more processors;
• a display panel including a pixel circuit;
• and
• a display panel driver configured to drive the display panel based on the input control signal and the input image data,
• wherein the pixel circuit includes:
• a first transistor including a control electrode connected to a first node, a first electrode configured to receive a first power supply voltage, and a second electrode connected to a second node;
• a second transistor including a control electrode configured to receive a writing gate signal, a first electrode configured to receive a data voltage, and a second electrode connected to a third node;
• a third transistor including a control electrode configured to receive a compensation gate signal, a first electrode connected to the first node, and a second electrode connected to the second node;
• a fourth transistor including a control electrode configured to receive an initialization gate signal, a first electrode connected to the second node, and a second electrode configured to receive an initialization voltage;
• a holding 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 an anode connected to the second node and a cathode configured to receive a second power supply voltage.