Semiconductor device and method for driving semiconductor device

A semiconductor device comprising a pixel, the pixel comprising:

• first to seventh transistors;
• first to third capacitors;
• and
• a display element,
• wherein one of a source and a drain of the first transistor is electrically connected to a gate of the second transistor, one of a source and a drain of the third transistor, and one electrode of the first capacitor,
• wherein one of a source and a drain of the second transistor is electrically connected to the other of the source and the drain of the third transistor, one of a source and a drain of the fifth transistor, one of a source and a drain of the sixth transistor, the other electrode of the first capacitor, and one electrode of the second capacitor,
• wherein the other of the source and the drain of the fifth transistor is electrically connected to the display element and one electrode of the third capacitor, and
• wherein a gate of the fifth transistor is electrically connected to one of a source and a drain of the seventh transistor and the other electrode of the third capacitor.

A semiconductor device comprising a pixel, the pixel comprising:

• first to seventh transistors;
• first to third capacitors;
• and
• a display element,
• wherein one of a source and a drain of the first transistor is electrically connected to a gate of the second transistor, one of a source and a drain of the third transistor, and one electrode of the first capacitor,
• wherein one of a source and a drain of the second transistor is electrically connected to the other of the source and the drain of the third transistor, one of a source and a drain of the fifth transistor, one of a source and a drain of the sixth transistor, the other electrode of the first capacitor, and one electrode of the second capacitor,
• wherein a back gate of the second transistor is electrically connected to one of a source and a drain of the fourth transistor, and the other electrode of the second capacitor,
• wherein the other of the source and the drain of the fifth transistor is electrically connected to the display element and one electrode of the third capacitor, and
• wherein a gate of the fifth transistor is electrically connected to one of a source and a drain of the seventh transistor and the other electrode of the third capacitor.