Light source module and display apparatus

A display apparatus, comprising:

• a light source module, comprising:
• a light guide plate, having a first light incident surface and a first surface connected to each other;
• a first light source, disposed on one side of the first light incident surface of the light guide plate, and adapted to emit a plurality of first light beams toward the first light incident surface, wherein the plurality of first light beams enter the light guide plate through the first light incident surface;
• and
• a plurality of optical microstructures, disposed on the first surface, wherein each of the plurality of optical microstructures has a first optical surface, a first structural surface and a second structural surface, the first optical surface faces the first light source, the first structural surface and the second structural surface connect the first optical surface and are opposite to each other, a first included angle is provided between the first optical surface and the first surface, the first included angle of each of the plurality of optical microstructures gradually changes as a distance from the first surface increases, and the first structural surface and the second structural surface of each of the plurality of optical microstructures are perpendicular to the first light incident surface;
• and
• a display panel, disposed on one side of the first surface of the light guide plate, and overlapping the first surface, wherein the plurality of first light beams transmitted in the light guide plate emit from a second surface of the light guide plate after being reflected by the plurality of first optical surfaces of the plurality of optical microstructures, and the second surface and the first surface are opposite to each other.