Apple Retina Displays Are So Last Year, My Dear...
According to Pr. Shin-Tson Wu from University of Central Florida’s College of Optics and Photonics, "Today’s Apple Retina displays have a resolution density of about 500 pixels per inch, but with our new technology, a resolution density of 1500 pixels per inch could be achieved on the same sized screen. This is especially attractive for VR (virtual reality) headsets or AR (augmented reality) technology, which must achieve high resolution in a small screen to look sharp when placed close to our eyes."
Blue-Phase LCD Technology
The new technology is in fact ten years old, but has not been widely stread because of some serious issues such as high operation voltage and slow capacitor charging time. To combat these issues, the researchers combined the new liquid crystal with a special electrode structure can achieve light transmittance of 74 per cent with an operation voltage of 15 volts only. These operational levels could finally make field-sequential colour displays practical for product development.
Among the advantages of Blue-phase LCD, you will find a very fast switching time, allowing for ten times faster image refresh and better colors.
How It Achieves triple resolution
The fast switching time is in fact key to higher resolution. Wu explains: “With the traditional LCD colour filters, the red, green and blue light are all generated at the same time,” said Wu. “However, with blue-phase liquid crystal we can use one subpixel to make all three colours, but at different times. This converts space into time, a space-saving configuration of two-thirds, which triples the resolution density.” And without the color filters, optical efficiency jumps from 30% to 74%, so brighter images are easy to achieve.
A working commercial prototype is expected within one year. Stay tuned....