LONDON – Pixtronix Inc., a developer and licensor of display technologies, and Chimei Innolux Corp. (CMI), a leading TFT-LCD manufacturer, have announced the successful joint development of 5-inch diagonal MEMS display prototypes.
The displays include proprietary MEMS shutter technology from Pixtronix (Andover, Mass.) and were built by CMI (Juhnan, Taiwan). They offer more than 135 percent of the NTSC color gamut, Pixtronix said, as well as greater than 170 degree viewing angles, more than 3,000:1 contrast ratio and 24-bit color depth, all at one quarter of the power consumption of equivalent size and resolution liquid crystal displays.
Pixtronix calls its technology PerfectLight Display. It has high switching speed making it suitable for applications ranging from full-speed video to e-reader operation in a single device. The PerfectLight display is based upon Pixtronix's digital micro shutter MEMS technology, which is built within standard LCD infrastructure and eliminates the need for liquid crystals, polarizers and color filters.
"We are extremely pleased in the progress we have achieved with CMI, as the 5-inch diagonal prototypes represent a leap forward in bringing Pixtronix technology to the smart phone and tablet markets," said Tony Zona, CEO of Pixtronix, in a statement. "We look forward to continued development with CMI as we improve the performance and scale of these displays on the way to commercialization."
In case anyone is curious how a MEMS shutter technology would eliminate the need for color filters, as I was... the MEMS shutter can be switched much faster than liquid crystals, so they use a frame sequential color (FCS). That means they have three light sources, RGB, turned on in sequence for a single color sub-frame. This contributes to power savings since the normal loss of light with a filter is avoided.
Got all this from a white paper you can find at their site.
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