a display panel in which a plurality of pixels, first to gth gate lines, and a plurality of data lines are provided, g being a natural number; and

a plurality of link lines provided on a rear surface of the display panel and connected to the plurality of data lines provided on a front surface of the display panel,

wherein in a display area including the plurality of pixels in the front surface, a first stage to an mth stage generating a plurality of gate signals to be supplied to the first gate line to the gth gate line are provided, m being a natural number less than or equal to g,

a first monitoring line through which a first monitoring signal is output is connected to the first stage, and

the first monitoring line extends to the rear surface through a lateral surface of the display panel.