CHEMICALLY STRENGTHENED GLASS

摘要

PROBLEM TO BE SOLVED: To provide a chemically strengthened glass which effectively suppresses reduction in glass strength even if chemical strengthening is performed.SOLUTION: There is provided a chemically strengthened glass having a compressive stress layer which is formed on a surface layer by an ion exchange method. A plate thickness is less than 0.7 mm, hydrogen concentration Y in a region of a depth X from the outermost surface of the glass satisfies a particular relational expression (I) in X=0.1 to 0.4 (μm), and two or more scratches having a length at 5 μm or more and a width at 0.1 μm or more do not exist in a 10 μm×5 μm region on the surface.