Display apparatus

A display apparatus comprising:

• a substrate including a display area and a peripheral area surrounding at least a portion of the display area;
• a plurality of pixel circuits in the display area;
• a plurality of data lines in the display area, extending in a first direction, and electrically connected to the plurality of pixel circuits;
• a plurality of circuit driving signal lines in the peripheral area, and configured to transmit a circuit driving signal configured to drive the plurality of pixel circuits;
• a data test pad portion on one side of the peripheral area, and including a plurality of data test pads electrically connected to the plurality of data lines, respectively;
• a first test pad portion on the one side of the peripheral area, and including a plurality of first circuit test pads electrically connected to the plurality of circuit driving signal lines, respectively;
• and
• a second test pad portion on the one side of the peripheral area to be adjacent to the first test pad portion in the first direction, and including a plurality of second circuit test pads electrically connected to the plurality of first circuit test pads, respectively,
• wherein a size of each of the plurality of first circuit test pads is less than a size of each of the plurality of second circuit test pads.