GLASS SUBSTRATE FOR DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME

摘要

In a method of manufacturing a glass plate for a display device, a protection film is formed on a mother glass plate. The protection film is patterned to form a protection film pattern which prevents ion exchange. Chemically strengthening the mother glass plate includes exchanging alkaline ions of the mother glass plate including the protection film pattern are exchanged with metal ions of a molten salt to form a first chemically strengthened portion, a non-strengthened portion and a second chemically strengthened portion. The upper surface of the protection film pattern is cut in the scribe line area to separate the glass plate at the non-strengthened portion of the mother glass plate, from the mother glass plate.