公开(公告)号：US20190352214A1

公开(公告)日：2019-11-21

申请号：US16480434

申请日：2018-01-26

Applicant: CORNING INCORPORATED

Inventor： Andrew Peter Kittleson ,  Gautam Narendra Kudva ,  Eric Lee Miller ,  Calvibn Jay Winder

IPC: C03B33/037 ,  C03B33/033

Abstract: Methods and apparatus for separating a glass sheet are described. An apparatus and a method utilize a vent bar having a cushion that exerts a force on the glass sheet adjacent a vent line to break the glass into two pieces at the vent line. The edge of the glass sheet has excellent perpendicularity without subsequent grinding and/or polishing so that the glass sheet can be used as a light guide plate in a display.