Display panel having an arrangement by unit pixel pairs

A display device comprising:

• a first unit pixel arranged on a substrate, the first unit pixel including a first red pixel electrode for emitting red light, a first blue pixel electrode for emitting blue light, and a first green pixel electrode for emitting green light;
• and
• a second unit pixel neighboring the first unit pixel in a first direction, the second unit pixel including a second red pixel electrode for emitting red light, a second blue pixel electrode for emitting blue light, and a second green pixel electrode for emitting green light,
• a planarization insulating layer disposed over the substrate, the planarization insulating layer including a first contact hole and a second contact hole spaced apart each other;
• and
• a first data line electrically connected to the first red pixel electrode, a second data line electrically connected to the first blue pixel electrode, and a third data line electrically connected to the first green pixel electrode;
• wherein the first blue pixel electrode includes a first connecting portion extending from one side of the first blue pixel electrode and covers the first contact hole,
• the second blue pixel electrode includes a second connecting portion extending from one side of the second blue pixel electrode and covers the second contact hole,
• the lengths of the first connecting portion and the second connecting portion are mutually equal, and
• the first data line, the second data line, and the third data line are arranged sequentially adjacent to each other on a plane.