Tag Archives: monitor

From broken laptop to cool utility monitor

Broken things are solutions looking for problems. They hold magic undiscovered potential. I hate throwing away broken things because I’m never sure I won’t be able to later re-purpose some part of them into something else. On a seemingly unrelated note, I’m often in need of plugging some random computer or video device in to a screen for testing and, up until now, I have had to swap cables on my desktop monitors or pull out some bulky crappy old monitor from the garage and find some temporary place for it while I use it. What I really want is a small lightweight monitor I can easily access and occasionally plug a Raspberry Pi or my linux server into, something that’s closer in size to a laptop screen than a big bulky desktop monitor and that will not take up desk space.

Cue in broken hardware

As luck would have it, my stupid cat likes to sleep on laptops. They provide a nice warm place and a soothing fan sound. Usually, the only repercussion of this fact is that I sometimes wake up in the morning with hair on the keyboard and the Google helpfully informing me that
thanks_google
In one particular instance however, I was using a hackintoshed Asus 1201N that was clearly not designed to support the weight of a house cat; I know because it never woke up from its night of feline suffocation. I took it apart to see what I could find but never did find the needle in that haystack; probably a shorted motherboard… In the closet of broken stuff it went.

A killer and his victim

Displays

I’m always thinking about creating different displays. I’m pretty bored with the standard monitor design and I’m always interested in challenges to the rectangle-in-a-sleek-shiny-enclosure status-quo which led me to learn that I could probably find hardware compatible with my broken laptop’s LCD panel. I took the laptop apart, got the part number of the LCD panel and eventually found the right board on ebay for about $30 (I searched for “HSD121PHW1 controller”, HSD121PHW1 being the panel’s model number). Two weeks later, the padded envelope with the telltale Chinese characters on it showed up in my mail mailbox and I immediately plugged it in to test it. Lo and behold, it worked!

From parts to a thing

Okay, so now, I actually have the parts I need to make that small monitor I’ve been wanting: a small LCD panel and a driver board I can plug any HDMI or DVI display into. The next step is putting it together in a cool, cheap and convenient way. I had been peripherally interested by Plexiglas for another project so I decided to try it as a mounting surface for this. I measured the width of the screen and driver board, as well as the height of the screen with and without the adjustment buttons, and got a couple pieces cut at my local plastic store (Santa Monica Plastics). I drilled some holes, mounted the various parts on the back using standoffs, and sandwiched them by screwing in the smaller piece of plexi in the front using longer standoffs.