LIGHT GUIDE PLATE GLASS

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Light guide plate glass expressed on the basis of the following oxides by mass percentage, comprising the following components : 55%-75% of SiO2, 1%-10% of Al2O3, 0%-15% of B2O3, 5%-15% of R2O, 10%-20% of MO, 0%-10% of ZnO, 0%-5% of ZrO2, and 0%-2% of rare-earth oxide, wherein R2O is selected from at least one of a group consisting of Li2O, Na2O, and K2O, and MO is selected from at least two of a group consisting of CaO, SrO, and BaO.