Display panel

A display panel comprising:

• a substrate including a first region, a second region, a non-display area that surrounds the first region and the second region, and a display area that surrounds the non-display area;
• a plurality of display elements on the display area;
• a plurality of pixel circuits connected to the each of the plurality of display elements on the display area;
• a plurality of dummy pixel circuits disposed on the non-display area;
• a plurality of signal lines connecting to some of the plurality of pixel circuits and some of the plurality of dummy pixel circuits;
• a pixel defining layer disposed over the plurality of pixel circuits and the plurality of dummy pixel circuits,
• wherein the pixel defining layer comprises a plurality of openings corresponding to each of the plurality of display elements, and
• wherein the pixel defining layer entirely covers the non-display area and has a flat upper surface on an area corresponding to the non-display area.