Hopefully future versions will use OLED . I wonder why Sony didn't use their own OLED microdisplays .
http://www.cdrinfo.com/Sections/News/Details.aspx?NewsId=39150
Sony's SmartEyeglass prototype and the SmartBand appeared at the company's booth at the Consumer Electronics Show (CES) 2014. Sony said the SmartEyeglass was used mainly to display information about sports events, such as player information at a soccer match - who the player currently having the ball is, how much time is left until the match is over, and more. The Sony eyewear prototype houses two small LED projectors, which register data onto a holographic strip in both lenses of the glasses. It features a transparent, 1mm thick lenses with a 90% see-through transmittance and an LCD with a brightness of more than 1,000cd/m2 and a resolution of 400 x 240 pixels. Its weight is 40g.
