Media.Player

Prevention of crack propagation in display screens

Summary

Digital displays and touchscreens are increasingly prominent in consumer electronics, telecommunications, and computing. Unfortunately, the materials used for these displays are prone to fracturing and cracking, which may render the device unusable. Once damaged, the screen is expensive to replace. Protective cases and covers that are currently marketed can be bulky and expensive. This technology is a method to prevent crack propagation in display screens through the deposition of a thin material layer in a patterned structure on the screen. By containing cracks within the small substructures of the patterned layer, widespread crack propagation is prevented. This protective layer can be applied using conventional lithography techniques during the display fabrication process, increasing the durability and lifetime of the screen.

Technology Benefits

Simple integration into existing production lineVariety of potential material sourcesMinimal impact on display visibilityPatent Information:Patent PendingTech Ventures Reference: IR CU15166

Technology Application

Durable screen technology for mobile phones, tablets, and computersBallistic-resistant glass for security and defense applicationsWindow protection from weather damage and projectilesCrack sensing of brittle materials

Detailed Technology Description

None

*Abstract

None

*Inquiry

Bonnie GurryColumbia Technology VenturesTel: (212) 854-8444Email: TechTransfer@columbia.edu

*IR

CU15166

*Principal Investigator

*Publications

Nam KH, Park IH, Do SH. “Patterning by controlled cracking” Nature. 2012 May 10;485:221-224.

Country/Region

USA