Sub-pixel, display device including the sub-pixel, and electronic device including the display device

A display device comprising:

• a display panel comprising:
• a plurality of sub-pixels;
• a plurality of data lines;
• a plurality of sub-gate lines;
• and
• an emission control line connected to the plurality of sub-pixels;
• a data driver configured to provide data signals to the plurality of data lines;
• a gate driver configured to provide gate signals to the plurality of sub-gate lines and an emission control signal to the emission control line;
• and
• a voltage generator configured to apply an initialization voltage, a first driving voltage, and a second driving voltage to the plurality of sub-pixels,
• wherein:
• the plurality of sub-gate lines comprise a first sub-gate line and a second sub-gate line, and
• each of the plurality of sub-pixels comprises:
• a first transistor comprising a first electrode connected to a third node, a second electrode connected to a first node, and
• a gate electrode connected to a second node;
• a second transistor comprising a first electrode connected to the second node, a second electrode electrically connected to one of the plurality of data lines, and a gate electrode electrically connected to the first sub-gate line;
• a fourth transistor comprising a first electrode electrically connected to a third power line, a second electrode connected to the third node, and a gate electrode electrically connected to the second sub-gate line;
• a third capacitor comprising an electrode connected to the gate electrode of the fourth transistor and another electrode connected to the second node;
• and
• a fourth capacitor comprising an electrode connected to the gate electrode of the second transistor and another electrode connected to the second node.

An electronic device, comprising:

• a processor to provide input image data;
• and
• a display device to display an image based on the input image data,
• the display device comprising:
• a display panel comprising:
• a plurality of sub-pixels;
• a plurality of data lines;
• a plurality of sub-gate lines;
• and
• an emission control line connected to the plurality of sub-pixels;
• a data driver configured to provide data signals to the plurality of data lines;
• a gate driver configured to provide gate signals to the plurality of sub-gate lines and an emission control signal to the emission control line;
• and
• a voltage generator configured to apply an initialization voltage, a first driving voltage, and a second driving voltage to the plurality of sub-pixels,
• wherein:
• the plurality of sub-gate lines comprise a first sub-gate line and a second sub-gate line, and
• each of the plurality of sub-pixels comprises:
• a first transistor comprising a first electrode connected to a third node, a second electrode connected to a first node, and a gate electrode connected to a second node;
• a second transistor comprising a first electrode connected to the second node, a second electrode electrically connected to one of the plurality of data lines, and a gate electrode electrically connected to the first sub-gate line;
• a fourth transistor comprising a first electrode electrically connected to a third power line, a second electrode connected to the third node, and a gate electrode electrically connected to the second sub-gate line;
• a third capacitor comprising an electrode connected to the gate electrode of the fourth transistor and another electrode connected to the second node;
• and
• a fourth capacitor comprising an electrode connected to the gate electrode of the second transistor and another electrode connected to the second node.