Method for polishing edge of glass substrate of display panel

Abstract

The present invention provides a method for polishing edge of glass substrate of display panel, which includes (1) conveying a glass substrate of a display panel to be polished to a polishing device and positioning the glass substrate for being subsequently polished by a grindstone of the polishing device; (2) providing first and second stop boards; (3) moving the first stop board to contact an upper surface of the glass substrate and moving the second stop board to contact a lower surface of the glass substrate; and (4) carrying out an edge polishing operation. By arranging the stop boards between the polished area and the non-polished area of the glass substrate, the glass chips generated during the polishing operation are prevented from flying and attaching to the surfaces of the non-polished area of the glass substrate during the polishing operation.

What is claimed is: 
     
         1 . A method for polishing edge of glass substrate of display panel, comprising the following steps:
 ( 1 ) conveying a glass substrate of a display panel to be polished to a polishing device and positioning the glass substrate for being subsequently polished by a grindstone of the polishing device;   ( 2 ) providing first and second stop boards;   ( 3 ) moving the first stop board to contact an upper surface of the glass substrate and moving the second stop board to contact a lower surface of the glass substrate; and   ( 4 ) carrying out an edge polishing operation.   
     
     
         2 . The method for polishing edge of glass substrate of display panel as claimed in  claim 1 , wherein in step ( 2 ), the first and second stop boards are in the form of a flat plate and have a width greater than width of the glass substrate. 
     
     
         3 . The method for polishing edge of glass substrate of display panel as claimed in  claim 1 , wherein in step ( 3 ), the first and second stop boards are perpendicular to the glass substrate after the movements. 
     
     
         4 . The method for polishing edge of glass substrate of display panel as claimed in  claim 1 , wherein in step ( 2 ), the first and second stop boards have ends facing the glass substrate and provided respectively with first and second cushioning bodies for contacting the glass substrate. 
     
     
         5 . The method for polishing edge of glass substrate of display panel as claimed in  claim 4 , wherein the first and second cushioning bodies have a cross section that is wedge-shaped and are made of an elastic material. 
     
     
         6 . The method for polishing edge of glass substrate of display panel as claimed in  claim 5 , wherein the first and second cushioning bodies are made a rubber material. 
     
     
         7 . The method for polishing edge of glass substrate of display panel as claimed in  claim 1 , wherein in step ( 3 ), the first and second stop boards are located adjacent to the grindstone after the movements. 
     
     
         8 . The method for polishing edge of glass substrate of display panel as claimed in  claim 1 , wherein step ( 4 ) includes spraying water mist and then rotating the grindstone to polish the glass substrate, and at the same time discharging the water mist and chips generated by the polishing. 
     
     
         9 . The method for polishing edge of glass substrate of display panel as claimed in  claim 1 , wherein the display panel is a display panel of an organic light-emitting device. 
     
     
         10 . The method for polishing edge of glass substrate of display panel as claimed in  claim 1 , wherein the display panel is a display panel of a liquid crystal display device. 
     
     
         11 . A method for polishing edge of glass substrate of display panel, comprising the following steps:
 ( 1 ) conveying a glass substrate of a display panel to be polished to a polishing device and positioning the glass substrate for being subsequently polished by a grindstone of the polishing device;   ( 2 ) providing first and second stop boards;   ( 3 ) moving the first stop board to contact an upper surface of the glass substrate and moving the second stop board to contact a lower surface of the glass substrate; and   ( 4 ) carrying out an edge polishing operation;   wherein in step ( 2 ), the first and second stop boards are in the form of a flat plate and have a width greater than width of the glass substrate;   wherein in step ( 3 ), the first and second stop boards are perpendicular to the glass substrate after the movements;   wherein in step ( 2 ), the first and second stop boards have ends facing the glass substrate and provided respectively with first and second cushioning bodies for contacting the glass substrate;   wherein the first and second cushioning bodies have a cross section that is wedge-shaped and are made of an elastic material;   wherein the first and second cushioning bodies are made a rubber material;   wherein in step ( 3 ), the first and second stop boards are located adjacent to the grindstone after the movements;   wherein step ( 4 ) includes spraying water mist and then rotating the grindstone to polish the glass substrate, and at the same time discharging the water mist and chips generated by the polishing; and   wherein the display panel is a display panel of an organic light-emitting device.