Abstract: Provided is a display device including gate drive circuits, a signal line connected to the gate drive circuit, a signal line connected to the gate drive circuit, a gate terminal, inspection terminals, and a connection line. The connection line connects the signal line and the signal line. The inspection terminal is disposed on the signal line. The inspection terminal is disposed on the signal line. The inspection terminals are terminals input with an inspection signal at the time of inspection.

Abstract: A circuit substrate includes a substrate portion having a variable-external-shape portion; a circuit portion, having a configuration in which circuit blocks adjacent to each other in a first direction; a plurality of trunk wiring lines bent along the circuit blocks displaced with respect to each other in a second direction; and a plurality of branch wiring lines, wherein the plurality of trunk wiring lines include a first trunk wiring line and a second trunk wiring line, and among the plurality of branch wiring lines, a plurality of branch wiring lines connected to a plurality of unit circuits constituting a center-side circuit block include at least a first branch wiring line connected to the first trunk wiring line and a second branch wiring line connected to the second trunk wiring line and disposed farther than the first branch wiring line from a end-side circuit block in the first direction.

Abstract: A plurality of circuit portions include a central side circuit portion connected to at least a central side-wiring line lead-out portion among a plurality of wiring line lead-out portions, and an end side circuit portion that is connected to at least an end side-wiring line lead-out portion among the plurality of wiring line lead-out portions, is also located on an end side in a first direction being an extending direction of a central side-outer shape portion having a linear shape with respect to the central side circuit portion, and is configured such that a dimension in a second direction being a direction in which the plurality of circuit portions and a central side region are aligned is smaller than that of the central side circuit portion.

Abstract: A circuit substrate includes a substrate portion having a variable-external-shape portion; a circuit portion, having a configuration in which circuit blocks adjacent to each other in a first direction; a plurality of trunk wiring lines bent along the circuit blocks displaced with respect to each other in a second direction; and a plurality of branch wiring lines, wherein the plurality of trunk wiring lines include a first trunk wiring line and a second trunk wiring line, and among the plurality of branch wiring lines, a plurality of branch wiring lines connected to a plurality of unit circuits constituting a center-side circuit block include at least a first branch wiring line connected to the first trunk wiring line and a second branch wiring line connected to the second trunk wiring line and disposed farther than the first branch wiring line from a end-side circuit block in the first direction.

Abstract: A plurality of circuit portions include a central side circuit portion connected to at least a central side-wiring line lead-out portion among a plurality of wiring line lead-out portions, and an end side circuit portion that is connected to at least an end side-wiring line lead-out portion among the plurality of wiring line lead-out portions, is also located on an end side in a first direction being an extending direction of a central side-outer shape portion having a linear shape with respect to the central side circuit portion, and is configured such that a dimension in a second direction being a direction in which the plurality of circuit portions and a central side region are aligned is smaller than that of the central side circuit portion.