Jade™ Product Brochure - CORNING - #2

Introducing Jad^^M GlassforAdvanced Display

Corning is known for identifying the challenges facing our customers and working proactively to solve them. With the portable device market continuing to evolve and grow, consumers are expecting their multifunctional mobile handsets to deliver more features, higher resolution, and lower power consumption. An increasing number of these high-performance devices are being manufactured using polysilicon technology (p-Si)—specifically, low temperature polysilicon (LTPS). Yet until now, there was no glass substrate fully optimized for LTPS applications. Corning has filled this void with the introduction of Jade^TM glass for advanced display.

Jade supports the many advantages that LTPS brings to advanced mobile devices, including better electron mobility and higher aperture ratio, which results in brighter displays and reduced energy consumption. Jade glass provides several unique attributes for LTPS applications:

• Superior surface quality: As a fusion-formed glass, Jade provides a flat, pristine surface with exceptional surface quality and dimensional control. Jade is the first glass for LTPS that will be used "as-formed," with no secondary heat treatment or polishing needed. Avoiding this step is a clear advantage since secondary treatments degrade the surface quality, shape, and attributes of the glass.

• Stable in high-temperature processes: Jade offers an intrinsic thermal stability, built into the glass through its chemistry. This stability helps our customers meet the high temperature process requirements of LTPS.

The combination of these two attributes means that Jade is capable of reduced design rule. This enables customers to integrate more components directly onto the glass, while also reducing the size of displays. For consumers, this means portable devices that are smaller, brighter, and multifunctional.

The development ofJade was aided by Corning's deep understanding of how the product worked in customers' processes. During the development phase, the design team was able to develop considerable knowledge in the area of compaction (dimensional changes resulting from thermal processes). The result was a composition that allowed us to eliminate a post-forming heat treatment step.

In addition to supporting the LTPS process for TFT-LCD panel makers, Jade will also help enable emerging display technologies such as Organic Light Emitting Diodes (OLEDs). As current-driven devices, OLEDs require the improved electron mobility of p-Si based TFTs to carry the required current load. The benefits ofJade as a polysilicon backplane can provide that foundation, allowing OLEDs to take full advantage of the technology. In fact, when used with Corning's Vita^TM hermetic sealing solution, Jade creates an optimal platform for OLED displays.

In addition to its utility for OLEDs, Jade is also an ideal platform for system on glass applications. System on glass refers to the ability to integrate electronic components directly on the glass. In this way, device manufacturers can efficiently deliver thinner products with larger, more reliable displays.

LTPS technology has the potential to create thinner portable devices with more functions, longer battery life, and better brightness and speed- key consumer benefits as more and more people use their mobile devices for activities such as watching TV and surfing the Web. By providing our LTPS customers with another enabling technology, Corning is helping to deliver a better viewing experience to consumers.

Whether it's solving glass substrate challenges for emerging technologies or providing reliable, high quality glass for the needs of today, Corning is committed to providing solutions for our customers worldwide.

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