AU Optronics Corp will showcase e-paper technologies at FPD International 2009 in Yokohama Japan, October 28-30, 2009. Among the technologies that will be introduced at the show, AUO is highlighting what it claims is the world's largest 20-inch e-paper module and the company's first 6-inch flexible e-paper. These flexible e-paper samples are planned for launch in 2010.
Adopting Sipix's exclusive Microcup technology, the 6-inch flexible e-paper incorporates a plastic substrate, so that the display can be repeatedly bent, allowing it to match even more closely the functionality of real paper. The portable and unbreakable nature of the e-paper makes it durable. While the curved radius of the e-paper reaches 100mm, it remains flexible and features 16 gray levels, a 9:1 high contrast ratio, and a reflectance of 33%.
In terms of power consumption, there is no electricity required during reading and it consumes power only when the image is updated. Using the roll-to-roll manufacturing process, the technology allows for the commencement of volume production with higher yield rates, making it more cost-competitive. The size of the flexible e-paper can be customized according to the interests of customers.
The 20-inch EPD (electrophoretic display) module is claimed to be the largest EPD size currently ready for mass production. The product is an optimal choice for future applications in public information display as it is able to eliminate the backlight. Other features include extremely low power consumption of <2W as well as 16 gray level capabilities.
Other EPD applications to be exhibited at FPD International 2009 include a 2-inch electronic shelf label (ESL), and 6-inch and 9-inch touch function built-in e-book displays. Since the 2-inch ESL uses active matrix equipped bi-stable image characteristics, label images can be maintained for at least a month without electricity supply on the shelf. With the in-cell touch functions and embedded single chip solution, the 9-inch e-book display provides a 1024 x 768 high-definition screen. AUO also debuts its 2-piece 6-inch e-book with foldable design.