Flexible touch screen panel and flexible display device with the same

A flexible display device, comprising:

• a flexible touch screen panel, comprising:
• a flexible window substrate;
• a polarizing functional layer attached on a first surface of the flexible window substrate, the polarizing functional layer being divided into an active area and an inactive area positioned outside of the active area;
• sensing patterns in the active area on a first surface of the polarizing functional layer;
• and
• sensing lines in the inactive area on the first surface of the polarizing functional layer, the sensing lines being connected to the sensing patterns,
• wherein the polarizing functional layer has a laminated structure in which a polarizer and a retardation compensation film are attached on the first surface of the flexible window substrate;
• and
• a display device attached facing the sensing patterns and the sensing lines in a direction of the first surface of the flexible window substrate.