LIGHT GUIDE PLATE STRUCTURE AND METHOD FOR MANUFACTURING THE SAME

PROBLEM TO BE SOLVED: To provide a light guide plate structure achieving local illumination and preventing light leakage, and a method for manufacturing the light guide plate structure.SOLUTION: In a light guide plate structure including a light guide layer and at least one light shielding line, the light shielding line includes an ink, is provided within the light guide layer, and blocks light transmitted from the whole light guide layer. The light shielding line is provided to transmit light only in an individual region within the light guide layer or to prevent light leakage. In a method for manufacturing the light guide plate structure, surface modification is performed on a light guide layer, and an ink is printed on the modified surface of the light guide layer so that the ink is permeated in the light guide layer and a light shielding line is formed in the light guide layer.