A display panel includes a first substrate, a second substrate, a display medium layer, and a sealant. The display medium layer may be disposed between the top substrate and the bottom substrate. The sealant may be disposed between the first substrate and the second substrate and surround the display medium layer. At least one of the first substrate and the second substrate includes a support plate and an 取向層. The 取向層 may be disposed on the support plate between the support plate and the display medium layer. A perimeter of the 取向層 may be completely encapsulated by the sealant. The at least one of the first substrate and the second substrate may have a plurality of microstructures positioned between the perimeter of the 取向層 and an edge of the support plate.