Archive for March, 2011

The Market for Strong Glass Grows

March 31, 2011

The strong “Chemcor” glass developed at Corning almost 50 years ago is now sold as “Gorilla Glass” for use as screens on personal electronic devices using touch screen technology.

Today this glass is made by Corning using a fusion-draw process  in Harrodsburg, Ky., and is an alumino-silicate glass, not the everyday soda-lime glass.  In the fusion-draw process hot glass is pumped into a suspended trough and allowed it to overflow and run down either side. The glass flows then meet under the trough and fuse seamlessly into a smooth, hanging sheet of glass.  Fusion-draw glass is tempered in a chemical bath, and does not use heat-tempering as many sheet glasses do.  The resulting liquid-crystal glass can be made very thin and is very strong.  More than 100-plus handheld devices use this glass.

Gorilla Glass LCD television screens will be available from some manufacturers this year.  Sony showed Bravia  model televisions with these screens at the 2011 Consumer Electronic Show in January.  With production going full-tilt in Harrodsburg, Ky., Corning  is converting part of a second factory in Shizuoka, Japan, to fill the growing orders.

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