Patent ID: 6685541
Filing Date: 2004-02-03
Classification: B24B

Abstract:
A method of finishing an edge of a flat panel display glass sheet, said edge having a flat region between a pair of corner regions, said method comprising the steps of:first contacting only said pair of corner regions and not the middle portion of said flat region of said edge with a rotating grinding wheel having a grinding surface with at least one v-shaped groove, said grinding wheel being parallel to the major surface of said glass sheet, wherein said pair of corner regions are transformed into a pair of ground beveled regions, each ground beveled region forming an angle &thgr; with the adjacent major surface of said glass sheet, said angle &thgr; being between approximately 15 and 40 degrees; and next contacting said edge with a rotating polishing wheel having a substantially flat polishing surface on the outer periphery, said polishing wheel being parallel to the major surface of said glass sheet, said polishing surface being sufficiently soft so that formation of a concave beveled edge is avoided, and wherein the interface of each of said ground beveled regions with said flat region is substantially rounded.