METHOD OF SEPARATING STRENGTHENED GLASS
First Claim
1. A method of separating a strengthened glass sheet, the method comprising:
- providing the strengthened glass sheet, the strengthened glass sheet having a first surface and a second surface, wherein;
each of the first surface and the second surface has a strengthened surface layer under a compressive stress and extending from the surface to a depth of layer, and a central region under tensile stress; and
the strengthened glass sheet comprises an aluminoborosilicate glass material having at least one alkali metal oxide modifier, and the ratio
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Accused Products
Abstract
A method of cutting a glass sheet that has been thermally or chemically strengthened along a predetermined line, axis, or direction with high speed and with minimum damage on the cut edges. The strengthened glass sheet may be an aluminoborosilicate glass material having at least one alkali metal oxide modifier, and the ratio
At least one damage line is formed within the strengthened glass sheet. The at least one damage line is formed outside the strengthened compressive stress surface layers and within the tensile stress layer of the strengthened glass sheet. The at least one damage line may be formed by laser treatment. A crack is initiated in the strengthened glass sheet and propagated along the at least one damage line to separate the strengthened glass sheet along the predetermined line, axis, or direction into at least two pieces.
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Citations
20 Claims
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1. A method of separating a strengthened glass sheet, the method comprising:
providing the strengthened glass sheet, the strengthened glass sheet having a first surface and a second surface, wherein; each of the first surface and the second surface has a strengthened surface layer under a compressive stress and extending from the surface to a depth of layer, and a central region under tensile stress; and the strengthened glass sheet comprises an aluminoborosilicate glass material having at least one alkali metal oxide modifier, and the ratio - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of separating a strengthened glass sheet, the method comprising:
providing the strengthened glass sheet, the strengthened glass sheet having a first surface and a second surface, wherein; each of the first surface and the second surface have a strengthened surface layer under a compressive stress and extending from the surface to a depth of layer, and a central region under a tensile stress; and the strengthened glass sheet comprises an aluminoborosilicate glass material having at least one alkali metal oxide modifier, and the ratio - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A strengthened glass article comprising:
a first surface and a second surface, wherein; each of the first surface and the second surface has an ion exchanged strengthened surface layer under a compressive stress and extending from the surface to a depth of layer, and a central region under a tensile stress, and a central region under a tensile stress; and the strengthened glass sheet comprises an aluminoborosilicate glass material having at least one alkali metal oxide modifier, and the ratio - View Dependent Claims (20)
Specification