Cutting Method And Cutting Stage Of Toughened Glass
AssigneeSamsung Corning Precision Materials Co., Ltd.
InventorJae Chang Lee
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Abstract
A cutting method and cutting stage of toughened glass with which a piece of toughened glass is divided into unit pieces of toughened glass. The cutting method cuts a piece of toughened glass which is strengthened by forming a compressive stress in the surface of a raw glass plate. The method includes the steps of reducing the central tension inside a cutting portion of the piece of toughened glass that is to be cut by concavely bending the cutting portion; and cutting the piece of toughened glass by forming a median crack in the cutting portion.
Claims10
A cutting method of toughened glass which has been strengthened by having induced a compressive stress in a surface of a raw glass plate, the method comprising:
- reducing a central tension inside a cutting portion of a piece of toughened glass that is to be cut by concavely bending the piece of toughened glass such that the cutting portion becomes a trough;
- and
- cutting the piece of toughened glass by forming a median crack in the cutting portion.
A cutting stage of toughened glass on which a piece of toughened glass that is to be cut is seated, the stage comprising:
- a concave support surface on which the piece of toughened glass is seated;
- and
- a vacuum hole formed in the concave support surface, the vacuum hole allowing the piece of toughened glass which is seated on the support surface to be affixed by vacuum.
Dependencies are inferred from the claim text.