Image display device

An image display device comprising:

• a substrate;
• a display region that includes multiple display units arranged in a matrix and displays an image;
• and
• a frame region that is a region outside the display region,
• wherein the substrate includes:
• an insulating substrate;
• a first metal layer, a first insulating layer, a second metal layer, a second insulating layer, and a third metal layer stacked in the stated order on the insulating substrate;
• a pixel electrode provided in the display region;
• a pixel control transistor provided in the display region and electrically connected to the pixel electrode;
• a scanning signal line electrically connected to a gate electrode of the pixel control transistor;
• and
• a gate driver provided monolithically on the insulating substrate in the frame region and configured to drive the scanning signal line,
• the gate driver includes a unit circuit including:
• a clock terminal to which a clock signal is input;
• an output terminal electrically connected to the scanning signal line and configured to output a scanning signal to the scanning signal line;
• and
• an output control transistor with one of a source electrode and a drain electrode connected to the clock terminal, and the other of the source electrode and the drain electrode connected to the output terminal,
• a drain electrode and a source electrode of the pixel control transistor are provided in the third metal layer,
• the gate electrode of the pixel control transistor is provided in the second metal layer,
• the scanning signal line is provided in the second metal layer in the display region,
• the substrate further includes a first additional line electrically connected to a gate electrode of the output control transistor,
• the first additional line includes a first additional line portion provided in the first metal layer in the display region, and
• the first additional line portion overlaps the scanning signal line in the display region via the first insulating layer.