Flexible board for lighting and/or signaling device of motor vehicle, has reinforcement plate attached to flexible substrate and made of copper, and coating layer partially covering reinforcement plate and substrate

摘要

The board (1) has a flexible substrate (2) formed by a polyimide layer, and a reinforcement plate (3) attached to the substrate, where the reinforcement plate is made of copper. A coating layer (5) partially covers the reinforcement plate and the substrate, and a conductive track (8) made of copper is extended to an edge (9) of the substrate. The conductive track comprises a rectangular large width zone (10) connected to a rectangular small width zone (11).