METHOD OF PREVENTING CRACKING IN GLASS DISPLAY SCREENS
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United States of America Patent
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Issued Date -
Dec 4, 2014
app pub date -
Jun 4, 2013
filing date -
Jun 4, 2013
priority date (Note) -
Abandoned
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Abstract
A portable electronic device housing portion is applied to a cover glass. The cover glass is heated to generate ionic conductivity therein and the method includes anodic bonding the cover glass to the housing portion. Cooling the assembly induces compressive stress within the cover glass to increase its tensile strength. The process which seals the cover glass to the housing also strengthens the cover glass.
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