Frosted Glass

 It is a special processing of the glass surface with chemical solutions such as hydrofluoric acid or sandblasting. 

the surface becomes unevenness after processed. and  the light cannot through the glass directly but scattering. It means the glass is not transparent but with the light transmission.  

The glass most applied in the visual privacy area.????????? But also can be used for decoration (with the pattern)

Anti-glare Glass

Also is the type of glass that with the frosted surface . AG glass will change the way glass reflects light, which is technically called diffusion.

Anti-glare glass can effectively reduce influences caused by environment lights.

click here to know AR glass/ anti-reflection)