I had my screen replaced after 3 or so months of (ab)use. First it started with a black line that ran the length of the screen when there are enough black pixels in a line. Then more popped up over time to the point that the screen flickered. By then, I set the external display as my primary monitor. The situation got worse to the point that I can only see the leftmost 10-20% of the content until that too eventually disappeared. But the backlight still works.
From the first symptoms to full blown failure took about… 3 weeks. I reported my concern to Alex, and he agreed to send me a replacement screen free of charge, and shipped to my doorstep in about two weeks.
I fitted it in, and the replacement screen works fine again, almost. The right edge appears darker, but I guess I can’t be too picky. Oh yeah, both the old screen and the new one exhibit ghosting when images are displayed at a fixed point for a prolonged period. Methinks the display isn’t what you’d call top quality, which I guess I can overlook somewhat.
However, I’m also scared of damaging the screen once more. I’ve tried using a blank webpage with a black background as a “screensaver”. I’m not sure what other precautions I could do to help prolong the life of the screen. Can my mainboard be at fault? The kernel? The OS? The DE?
I would send a photo to Alex and explain that the replacement screen has issues as well. I have not seen any of those issues on my unit. I did implement the “sleep” support scripts right away though and I always hit the power button to turn off the screen when not actively using it.
So:
The exact model number is on the back there, and it is a TxWEI screen, part number TXW50017B0.
Dimensionally, the module is 119mm x 65mm, with a 111.25mm x 63mm active area starting 1mm x 1mm from the top-left, the primary ribbon connected to the right hand side, and exiting the footprint 75mm from the left.
Electrically, it’s a standard 40-pin LVDS (like a laptop screen). It is not MIPI (like the official Raspberry Pi display).
Logically, it’s 1280x720 resolution.
Practically, your best option is to email clockwork to see if you can source a replacement directly. I just worked out this stuff because I wanted to see what my options might be for upgrades. The fact that it’s standard LVDS implies I might be able to re-case it in a variety of ways with size-matched screens with just a few tweaks to config.txt.