| 摘要 |
PROBLEM TO BE SOLVED: To provide a circuit board having an opening provided on an insulating film in which an opening ratio is sufficiently improved, and to provide a method for manufacturing a circuit board and a display device.SOLUTION: A circuit board includes a glass substrate and an insulating film. The insulating film has at least a first opening and a second opening. When a main surface of the substrate is viewed in plane, the circuit board includes a first conductor overlapping the first opening, a second conductor or a semiconductor which is electrically connected to the first conductor, a third conductor overlapping the second opening, and a fourth conductor electrically connected to the third conductor. A layer in which the second conductor or the semiconductor is provided is positioned closer to the glass substrate side than a layer in which the fourth conductor is provided, and the first conductor is a circuit board thicker than the third conductor. |
