SUBSTRATE FOR DISPLAY DEVICE, AND DISPLAY DEVICE

摘要

Disclosed is a substrate for a display device, wherein a peripheral circuit is provided on a frame part and a higher aperture ratio can be achieved, while suppressing the production cost.  Also disclosed is a display device.  The substrate for a display device comprises a peripheral circuit provided on a frame part, a first pixel auxiliary capacitor, and a thin film transistor.  The first pixel auxiliary capacitor comprises an upper electrode and a lower electrode.  The peripheral circuit comprises a wiring line.  The thin film transistor comprises a gate electrode.  The upper electrode and the lower electrode are positioned at a higher level than the gate electrode, and formed from the same material as the wiring line.