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Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4059
Hi folks! Thanks to components from the four corners of the globe, I finally made it work!!
The device is based on among other things a hybrid laser/microwave/induction unit with a molecular scanner I invented and is capable of not only repairing slightly cracked and screen burned OLED panels but also graphics cards and RAM chips.
I built this using some ideas from here, and it seems only fair that it be posted back so others can benefit. Its using an M140 w/5 element glass lens, small LCD screen originally from Electronics Goldmine but also found in some early projectors, IR pump diode, a microwave component from a burglar alarm system running at 22 GHz and a few other components. Also an Arduino Uno R3. The molecular scanner is based around a Pi Zero W with discrete colour wheel also poached from a broken DLP projector and an infrared source using a surplus VCSL from an optical mouse.
It works by "nudging" molecules in the defective panel or chip and then adjusting polarization on the fly so that they rotate back into the correct structure, one layer at a time using real time feedback from a reference panel or memory settings on the microSD. Testing it on my broken Note 4 got the brightness back up to 80% on the blue which is the most difficult colour, and no screen burn visible so at least its usable again.
Graphics cards are more awkward, for this I had to use an induction method at a higher than usual frequency but as long as the die is clean it works perfectly well. My formerly dead GT780 Windforce now works fine and is now overclockable by 20% which is astonishing for a first attempt.
I've sourced another dead card and repaired the obvious capacitor faults, so going to try the shader fix next. Now for my broken 256GB USB stick with the bad controller IC.
Registered Member #2099
Joined: Wed Apr 29 2009, 12:22AM
Location: Los Altos, California
Posts: 1714
Nice work there, Andre.
Are the last twitches of this forum slowing down? I bet 4hv.org would come back to life if we could easily illustrate our posts. In spite of the horrible, low-contrast Captcha barrier.
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Repairing broken OLED panels and graphics cards
