The present invention provides a touch panel substrate that allows for greater design freedom when designing conductive wire patterns for reducing occurrence of the moiré effect. The touch panel substrate includes: a first electrode layer that includes first conductive wires and second conductive wires; and a second electrode layer that includes third conductive wires and fourth conductive wires. When viewed in a plan view, the first conductive wires and the third conductive wires form first quadrilaterals, and the second conductive wires and the fourth conductive wire form second quadrilaterals. The first quadrilaterals and the second quadrilaterals are not identical to one another.