A display device and a method for manufacturing the display device are provided. The display device includes: a display panel, including a first substrate and a second substrate arranged opposite to the first substrate, wherein the first substrate includes a single-substrate area beyond the second substrate; a display driving circuit electrically connected to the display panel; a lens assembly arranged at the single-substrate area of the first substrate and configured to collect light information; and an image sensor arranged at the single-substrate area of the first substrate, connected to the display driving circuit, and configured to receive the light information collected by the lens assembly.