Display panel

A display device, comprising:

• a TFT substrate, comprising:
• a substrate;
• a gate layer disposed on the substrate;
• a semiconductor layer disposed on the substrate;
• a gate dielectric layer disposed between the gate layer and the semiconductor layer;
• a first electrode layer disposed on the semiconductor layer;
• a first passivation layer disposed on the first electrode layer, wherein the first passivation layer has a top surface;
• a second passivation layer disposed on the first passivation layer, wherein a via penetrates the first passivation layer and the second passivation layer to expose a portion of the first electrode layer and to form a sidewall of the via, the first passivation layer has a first edge on the sidewall of the via, the second passivation layer has a second edge on the sidewall of the via, and the first edge and the second edge are separated by a distance in the range of 500-2000 angstroms (Å);
• and
• a second electrode layer disposed on the second passivation layer and electrically connected to the first electrode layer through the via, wherein the second electrode layer covers and contacts at least part of the top surface of the first passivation layer, and the second electrode layer covers the sidewall of the via;
• and
• a display layer disposed on the TFT substrate.