Over the past few years, I have had the opportunity to test several devices with paper-like screens. These devices offer a variety of benefits, including a panel that mimics the texture of paper, reduces blue light exposure, and in some cases, eliminates the need for a backlight by using a screen that reflects light rather than emitting it.
While devices from companies like Onyx have been impressive, one of the major challenges has been the speed of the panel. Onyx tablets, for example, often have low refresh rates that can significantly slow down scrolling speed, making even simple tasks like reading a PDF cumbersome.
As we venture into the realm of colorful e-ink displays, issues like ghosting artifacts and poor fidelity become more apparent. There always seems to be some visual compromise. Why should a device that relies solely on on-screen interactions provide such an underwhelming user experience?
HannStar, a Taiwan-based company that produces electronic devices under the HannSpree brand, has introduced a revolutionary solution in the form of its EcoVision screen technology. This full-color display is available in reflective and backlit formats, but most importantly, it boasts a 60Hz refresh rate.
The HannsNote 2, an Android device that we have tested, showcases this EcoVision screen technology. It offers a unique paper-like reading experience with a 60Hz refresh rate, comparable to that of the latest iPhone.
Key Features of the HannsNote 2
Before delving into the specifics of how HannSpree achieved a 60Hz scrolling experience on a paper-like screen without a backlight, let’s understand the concept of a sunlit screen. Unlike traditional screens that produce their own light, reflective screens rely on ambient light to display content. The HannsNote 2 utilizes HannStar’s Argentum Birefringence system, offering up to 80% lower power consumption than standard LED-backlit panels.
