Patent ID: 9075180
Filing Date: 2015-07-07
Classification: G02B,Y10T

Abstract:
1. A method for manufacturing a light guide plate, comprising the following steps: (1) providing a metal plate base material; (2) subjecting surfaces of the metal plate base material to polishing or coating of high reflectivity layers to form mirror surfaces; (3) cutting the metal plate base material into metal plates; (4) providing a light guide plate base material that is different from the metal plate base material; (5) employing a heating device to heat the metal plates to a temperature higher than a melting point of the light guide plate base material; and (6) piercing the heated metal plates into the light guide plate base material at predetermined border lines of sections by means of the temperature of the metal plates to thereby form a light guide plate comprising reflective separation walls formed of the metal plates that are pierced into the light guide plate and have mirror surfaces, wherein a width of the metal plates that is measured in a direction parallel to a thickness of the light guide plate is less than the thickness of the light guide plate so as to have the metal plates completely buried in the light guide plate.