US Patent 11183669 Display apparatus and head-mounted display including the same

A display apparatus is provided. The display apparatus includes a substrate including a plurality of pixels configured to emit light, wherein the amount of emitted light is at a maximum when emitted at an angle of more than 0 degrees. The display apparatus further includes an encapsulation layer covering the plurality of pixels and including a plurality of light collecting structures each having a three-dimensional quadrangular horn shape or a three-dimensional quadrangular truncated-horn shape.