We didn't manage to check out Vivitek's booth and its bevy of low power QR-LPD-screened devices at this year's CES, but it doesn't look like we missed much. The e-book fanatics over at The Digital Reader dropped by, and found Bridgestone's QR-LPD screen technology extremely disappointing. Apparently the screens are just as dim and washed out as they were when we first glimpsed them, over two years ago. In addition, the screen refresh time is painfully slow. Unless these screens turn out to be vastly better in production and incredibly cheap, we think Mirasol and Pixel Qi don't have anything to worry about in the next-gen screen space. There's a video of QR-LPD after the break if you're still interested.