Colour display uses electronic ink

E Ink and two of its strategic development partners have demonstrated what they are claiming is the world’s first high-resolution, active-matrix colour display.

E Ink and two of its strategic development partners – Toppan Printing and Royal Philips Electronics – have demonstrated what they are claiming is the world’s first high-resolution, active-matrix colour display developed with electronic ink.

The colour display was developed by integrating technologies from all three parties – E Ink’s electronic ink technology, a custom colour filter array produced by Toppan and an active matrix backplane from Philips.

The display itself is capable of displaying 4,096 colours and is being developed for mobile applications such as PDAs, mobile communications devices and electronic readers.

The display measures 5.0 inches diagonal with a resolution of 320 x RGB x 234 (80 pixels per inch (ppi)). As with all electronic ink displays, standard manufacturing technologies are used to produce the components including the TFT (thin film transistor) backplanes, IC drivers and colour filter arrays.

Philips plans to introduce monochrome displays (ranging from black & white to 4-bit grey scale initially) based on the technology for handheld devices and portable consumer electronics next year. Colour displays are targeted for commercialisation in 2004.