Here’s a nice wireless wall digital photo frame howto.
A quick search of the web turned up several do-it-yourself articles by photographers that had built their own digital frames – typically from discarded laptops. The laptop based digital frames have larger screens (10” to 15”), and tend to be reasonably inexpensive to build (provided you own a discarded laptop).
The laptop projects that I saw had a couple of common issues, however. All of them involved taking the laptop apart completely and generally rendering it useless for any other activity. The screens were also smaller than I wanted – equivalent to an 8”x12” photo, and varied considerably in contrast, brightness, and general image quality.
For my project, I wanted a desktop quality LCD screen of a size equivalent to an 11”x14” photograph. I also wanted professional quality matting and framing. My wife was skeptical about the project, and I knew that if the frame did not look great, it would be banished to the family room, instead of being mounted in a place of honor in the living room.
I had recently upgraded my 17” LCD desktop monitor, and I also had a discarded laptop. I decided to use these as the base components for my digital frame.