CPC C03C 21/002 (2013.01) [C03B 27/03 (2013.01); C03C 3/083 (2013.01); G02F 1/133308 (2013.01); G02F 1/133331 (2021.01); C03C 3/04 (2013.01); C03C 3/085 (2013.01)] | 11 Claims |
1. A glass article including lithium aluminosilicate, comprising:
a first surface;
a second surface opposed to the first surface;
a first compressive region extending from the first surface to a first compression depth;
a second compressive region extending from the second surface to a second compression depth; and
a tensile region disposed between the first compression depth and the second compression depth,
wherein a stress profile of the first compressive region has a first local minimum point at which the stress profile is convex downward and a first local maximum point at which the stress profile is convex upward,
wherein a depth of the first local maximum point is greater than a depth of the first local minimum point,
wherein a stress of the first local maximum point is greater than a compressive stress of the first local minimum point,
wherein a depth of the first local minimum point is 0.24 times to 0.31 times the first compression depth, and
the first compression depth ranges from 105 micrometers to 115 micrometers.
|