A display panel, a method of manufacturing the display panel, and a display apparatus are provided in the embodiments of the present invention. The display panel comprises a first substrate assembly and a second substrate assembly, and a first polarizing filter and a second polarizing filter. The first substrate assembly and the first polarizing filter are located on a light output side. A lens grating is disposed between the first polarizing filter and the first substrate assembly of the display panel, and a substrate of the first substrate assembly serves as a substrate of the lens grating.