Patent ID: 8641935

Claim:
A method for manufacturing light guide plate, comprising: providing a first pressing roller and a second pressing roller, the first pressing roller and the second pressing roller being located nearby each other and spaced for a predetermined distance from each other, at least one of the first pressing roller and the second pressing roller comprising a transparent shell and an UV lamp located in the transparent shell, the transparent shell comprising a plurality of microstructures formed on an outer surface thereof, the microstructures being formed on the transparent shell by a method comprising: coating an interconnecting layer on the outer surface of the shell; coating a mask layer on the interconnecting layer; forming a number of etching holes through the mask layer and the interconnecting layer, and portions of the outer surface of the shell corresponding to the etching holes being exposed; filling glass etching solution into the etching holes for etching the portions of the outer surface of the shell exposed in the etching holes; and removing the mask layer and the interconnecting layer from the shell; rotating the first pressing roller and the second pressing roller, a rotating direction of the first pressing roller being reverse to that of the second pressing roller; distributing UV curable glue on one of the rotating first pressing roller and the second pressing roller, the UV curable glue being carried between the first pressing roller and the second pressing roller and being pressed by the first pressing roller and the second pressing roller; and illuminating the pressed UV curable glue with UV light emitted from the UV lamp to solidify the pressed UV curable glue.