Display device having high resolution

A display device, comprising:

• a substrate;
• a first thin film transistor disposed on the substrate;
• an insulating layer disposed on the first thin film transistor and having a first contact hole;
• a conductive line disposed on the insulating layer, wherein the conductive line is electrically coupled to the first thin film transistor via the first contact hole, and the conductive line extends along a first direction;
• and
• a pixel define layer disposed on the insulating layer, wherein the pixel define layer comprises a first opening region, a second opening region, and a third opening region, wherein the first opening region and the second opening region are arranged along the first direction, the third opening region is adjacent to the first opening region, and the third opening region is adjacent to the second opening region,
• wherein the conductive line is located between the first opening region and the third opening region, and the first contact hole is located between the first opening region and the second opening region, and
• an area of the first opening region is less than an area of the third opening region, an area of the second opening region is less than the area of the third opening region, the first contact hole and the first opening region are separated by a first distance, the first contact hole and the second opening region are separated by a second distance, and the first distance is different from the second distance.