RPF PREMIUM MEMBER
These look AMAZING!! Please detail your sources for the EL backlight and the process.
I got a white 10x10cm EL panel with 12V converter from Aliexpress:
2.9US $ |Led Panel 10x10cm Backlight, EL + (7 Colors Available) + 12v Inverter|led backlight panel|12v led panel12v panel - AliExpress
Smarter Shopping, Better Living! Aliexpress.com
In the transition box I have some ridges built-in to support a 1mm sheet in place of 55x45mm and I cut the EL panel to the same size and mounted it on top. The converter is underneath in the transition box. I drilled a hole to the battery compartment and that's where I appropriately put the 9v battery. I didn't make a proper switch yet. It should maybe light up automatically when it opens. I have to see if I can mount a switch somewhere.
The 'slide' is a screengrab I took from the movie and I enhanced the image a bit and enlarged it in height with black. I printed it on a transparency sticker sheet on my inkjet printer.
I might have to retry and take out some of the blue because the white EL light is quite bluish (even though it's pink with the power off).