I have a deep interest in ePaper and these digital price tags are an interesting part of that. While some brands have RF comms for updating the display, this one is a Pricer brand tag that uses IR for updates. I believe the idea is that retail stores will have transmitters in the ceiling that can update tags as needed.
I grabbed this on off of eBay for $20. It's an HD150 model, although it's very difficult to find detail about these so I really didn't know what I was purchasing.
I was pretty happy when it arrived and found that it has a display that measures almost 6 inches on the diagonal. With no visible screws, I used a spudger to pry the front and back cases apart at the seam on the edge. Unfortunately I cracked the front frame in half along the top but I'm not bothered by that.
Check out the teardown project log for more images and thoughts on what I found when taking this one apart.