Flexible display substrate, flexible organic light emitting display device and method for manufacturing the same

A flexible organic light emitting diode (OLED) display device comprising:

• a flexible substrate having a curved portion bent in a bending direction;
• and
• a wire electrically coupled between at least two components of the flexible organic light emitting display device, the wire includes a plurality of the first portions and second portions forming a series of diamond shapes connected to each other and disposed on the curved portion of the flexible substrate, wherein the portion of the wire disposed on the curved portion has a greater length than a length of the curved portion of the flexible substrate,
• wherein each of the first and second portions of the wire includes an inner layer and an outer layer having a greater radius of curvature than the inner layer, wherein the inner layer is formed of one of molybdenum (Mo), aluminum (Al), chromim (Cr), gold (Ag), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), and the outer layer is formed of another of the molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Ag), titanium (Ti), nickel (Ni), neodymium (Nd) and copper (Cu).

A flexible organic light emitting diode (OLED) display device comprising:

• a flexible substrate having a curved portion and a flat portion;
• a plurality of thin film transistors on the flexible substrate to operate pixels on the flexible substrate;
• and
• a wire electrically coupling at least two components of the flexible organic light emitting display device, the wire having portions disposed on the curved portion of the flexible substrate, wherein the portions of the wire disposed on the curved portion has a length longer than an arc length of the curved portion taken along a section of the curved portion perpendicular to a boundary line between the flat portion and the curved portion.