Method for manufacturing light guide plate mold

A method for manufacturing a light guide plate mold, comprising the following steps:

• acquiring a deformation coefficient i, where 1<i≤1.12, and a size parameter j, where 0.03 mm<j≤0.05 mm;
• applying digital simulation software to simulate a formation process of an original three-dimensional model for a light guide plate so as to acquire a simulation deformation amount of the light guide plate;
• multiplying the simulation deformation amount with the deformation coefficient i to obtain a counter deformation amount of a light guide plate mold;
• and subtracting the size parameter j from a length and a width of the light guide plate to obtain length and width dimensions of the light guide plate mold;
• and forming the light guide plate mold according to the counter deformation amount of the light guide plate mold and length and width dimensions of the light guide plate mold;
• wherein the size parameter is determined as an amount by which a dimension of a light guide plate product made with the light guide plate mold is greater than a target size;
• and
• wherein dimensions of the light guide plate mold so formed is first modified with counter deformation amount that is obtained with the simulation deformation amount of the light guide plate to be molded with the light guide plate mold and additionally modified by subtracting both the length and width of the dimensions of the light guide plate mold with the size parameter.