Novel displays have been developed using the effect of moving a droplet by electrowetting. This approach enables bistable and reflective monochrome and color displays which could also be made on plastic substrates. Prototypes show promising performance in terms of contrast ratio, gray scale, and color.
Novel Displays have been developed using the effect of moving a droplet by electrowetting. This approach enables bi-stable and high reflective monochrome and color displays which could also be made on plastic substrates. Prototypes show promising performance in terms of contrast ratio, gray scale and color.
adt's electrowetting displays are designed for bistability ("green") and capable of all backlight modes (reflective, transflective and transmissive). Compared to LED indicators, our pixels draw no power and are sunlight readable. Using CMY stacks we achieved a superior color gamut and high reflectivity (both topics are essential for electronic billboards).
The electrowetting displays are widely discussed within the last years. A colored liquid is deformed or moved from a visible to a non-visible position. The production aspects of such microfluidic structures has to cover microfluidic channel structures, filling procedures, sealing, temperature stability and -electrodes for matrix driving. The requirement of reasonable production costs need to balance these requirements. We will show some examples how the design and production is realized and will present some cost consideration.
A new display technology based on droplet moving by electro‐wetting was introduced in 2007. Major improvements were made regarding hydrophobic layer, fluids, pixel layout, driving electronics and system design resulting in an operating voltage of less than 20 V for a 2 mm droplet. This enables new approaches for bistable and high reflective displays (e‐paper) with low power consumption, superior ambient light performance and wide temperature range. The pixel size can be varied between 0.5 and 10 mm for single pixels and being typical 2 mm for 8‐Segment as well as for (color) matrix displays driven by Passive Matrix.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.