METHOD OF MODIFYING A TEXTURED GLASS SUBSTRATE WITH A REGION UNDER COMPRESSIVE STRESS TO INCREASE STRENGTH OF THE GLASS SUBSTRATE

A method of modifying a glass substrate comprises: generating surface features with peaks and valleys on a first surface of a glass substrate, the surface features providing a roughness average (Ra) within the range of 10 nm to 2000 nm; generating a region of the glass substrate that is under compressive stress, the region extending from the first surface to a depth of compression; and removing a portion of the region under compressive stress from the first surface into the depth of compression to define a new first surface still having surface features with peaks and valleys providing a roughness average (Ra) within the range of 10 nm to 2000 nm. Removing the portion of the region under compressive stress from the first surface into the depth of the compression to define a new first surface can comprise contacting the first surface with a light etchant. 一种改良玻璃基板的方法，包括步骤：在玻璃基板的第一表面上产生具有峰和谷的表面特征，表面特征具有在10nm至2000nm范围内的粗糙度平均值(Ra)；产生玻璃基板的在压应力下的区域，该区域从第一表面延伸到压缩深度；以及将自第一表面延伸至压缩深度的处于压应力下的区域的一部分移除，以限定出仍具有含有峰和谷的表面特征新的