Patent ID: 8573826

Claim:
A side-light type backlight module, wherein the side-light type backlight module comprises: a light guide plate (LGP) having a lower surface, a light output surface opposite to the lower surface, and at least one light input side surface connected between the lower surface and the light output surface; at least one reflector sheet correspondingly disposed on at least one side surface of the LGP except for the light input side surface, wherein an air layer is defined between the reflector sheet and the LGP; a light source disposed on one side of the light input side surface and used to provide light which emits into the LGP from the light input side surface; and an outer frame covered around the LGP, wherein the reflector sheet is mounted in an inner side surface of the outer frame; wherein a side of the reflector sheet facing the LGP is mounted with an optical film; a side of the optical film facing the LGP is concave and convex; the optical film is attached to the LGP by a transparent adhesive layer; and the air layer is defined between the optical film and the transparent adhesive layer.