DISPLAY SUBSTRATE COMPRISING PLANARIZATION LAYER AND DISPLAY DEVICE THEREOF

The present disclosure relates to a display substrate, including: a substrate including a display region and a peripheral region surrounding the display region, the peripheral region including a first wiring region, the first wiring region including a first sub-wiring region disposed along a first direction away from the display region; a first conductive layer located on the substrate; a first dielectric layer located on the first conductive layer; a second conductive layer located on the first dielectric layer; a second dielectric layer located on the second conductive layer; a third conductive layer located on the second dielectric layer; a third dielectric layer as a planarization layer located on the third conductive layer; a fourth conductive layer located on the third dielectric layer. The fourth wiring is electrically connected to the third wiring. An orthographic projection of the fourth wiring on the substrate at least partially overlaps with an orthographic projection of the third wiring on the substrate.