Created via a joint effort using phosphorescent OLED technology from display developer Universal Display (Ewing, NJ) and driver technology from display manufacturer LG Philips (Seoul, Korea), a prototype flexible color active-matrix OLED display is presented as the first built on flexible metal foil using an amorphous-silicon (a-Si) backplane. The thin, rugged, and lightweight 4-in. QVGA screen proves that one can use an a-Si TFT process instead of the more costly LTPS solution and promises to enable the creation of a host of very thin and lightweight conformable and flexible displays for products of all nature.
A 4-in. QVGA portrait-configured 100-ppi full-color OLED is built on a 76-µm-thick metal foil.
The 4-in. QVGA display prototype is a portrait-configured 100-ppi full-color OLED built on a 76-µm-thick metal foil providing 256 gray-scale levels per color (8 bit) in still or full-motion video. Glass-based OLEDs are starting to appear in a variety of first-generation applications but a tantalizing potential of OLED technology is the ability to use a flexible substrate in a conformal or flexing format. Flexible metal foil offers a number of desirable advantages including enhanced thermal and mechanical durability, an important characteristic for high-temperature TFT processing, and potentially lower cost.
For more information from Universal Display, visit www.universaldisplay.com. For more from LG Philips, visit http://www.lgphilips-lcd.com.
Alix L. Paultre
Advertisement
Learn more about Universal Display
