Abstract: Provided are a display motherboard, a preparation method thereof, a display substrate and a display device. The display motherboard includes a plurality of display substrate regions and a cutting region located at a periphery of each of the plurality of display substrate regions; the display motherboard includes a driving structure layer arranged in each of the plurality of display substrate regions and a marking structure layer arranged in each cutting region, wherein the marking structure layer includes a cutting mark layer; and a planarization layer arranged on the driving structure layer and the marking structure layer, and covering the marking structure layer.

Abstract: Devices and systems of a near eye system are provided. In particular, the near eye system may include a digital light processor, a first prism optically coupled to the digital light processor, a lens assembly optically coupled to the first prism, a second prism optically coupled to the lens assembly, and a waveguide configured to direct optical energy received from the second prism into an eye of a user.