Displays with shared flexible substrates

An electronic device, comprising:

• a flexible polymer substrate layer;
• an array of display pixels formed on a first region of the flexible polymer substrate layer;
• a plurality of metal traces in a second region of the flexible polymer substrate layer;
• and
• a display driver integrated circuit mounted to the plurality of metal traces in the second region of the flexible polymer substrate layer, wherein the flexible polymer substrate layer comprises a bend such that the first region of the flexible polymer substrate layer overlaps the display driver integrated circuit in the second region of the flexible polymer substrate layer, and wherein the flexible polymer substrate layer has a third region that is sandwiched between layers of metal.

An electronic device, comprising:

• a display having an array of display pixels;
• a polymer film having metal traces;
• a display driver integrated circuit mounted to the metal traces, wherein at least a portion of the display overlaps the display driver integrated circuit and wherein the display and the polymer film share a flexible polymer substrate layer;
• and
• a flexible printed circuit comprising at least first and second conductive layers, wherein the flexible polymer substrate layer is sandwiched between the first and second conductive layers of the flexible printed circuit.