Ursa83

This might explain things a bit more: www.visionect.com/blog/worlds-first-epaper-traffic-signs In short, the signs are paperlike, with a 180-degree viewing angle and no glare, but they do have a frontlight. They connect via 3G and have tamper detection.

Hi, the article is back up. No worries, you're right, the tech is perfectly safe for the road - in traffic signs and in many other applications (www.visionect.com/blog/electronic-paper-truck-displays). So many exciting projects yet to come!

Hi, Ursa from Visionect here, the company powering the Sydney traffic signs. To answer your question: electronic paper technology is 99% more power efficient than LCD (uses energy only when changing content). In many applications, it can also prove to be as much as four times more reliable than LCD.

Hi there, Ursa from Visionect here. Just a slight clarification: the 9.7 Sign is not a consumer product in the sense of a digital picture frame. Rather it is a sort-of development kit, a blank canvas device on which companies can develop their own products. So geared towards professional use. Plus, the battery lasts four months;)