| 摘要 |
A tempered glass substrate of the present invention is a tempered glass substrate, which has a compression stress layer on a surface thereof, and has a glass composition comprising, in terms of mass%, 40 to 71% of SiO 2 , 3 to 21% of Al 2 O 3 , 0 to 3.5% of Li 2 O, 7 to 20% of Na 2 O, and 0 to 15% of K 2 O. |
