CIRCUIT BOARD, ELECTRONIC CIRCUIT DEVICE, AND DISPLAY

The present invention provides a circuit board, an electronic circuit device, and a display device, in which generation of an edge short-circuit is suppressed and wirings can be arranged more densely. The present invention is a circuit board including: a substrate having the first main surface on which a semiconductor integrated circuit is mounted and the second main surface; the first wiring including a bump connecting terminal on the first main surface; and a plurality of the second wirings on the second main surface, wherein the plurality of the second wirings are arranged independently from each other and overlap with a region where the semiconductor integrated circuit is mounted, and the circuit board includes a wiring part on the second main surface in a region overlapping with a region where the bump connecting terminal is arranged.