I lost a Samsung monitor recently - Syncmaster 2032BW - took 2-3mins for backlight to kick in when booting or waking from sleep
I did a check on ebay to see if there were backlight spares available, but all I found was same model of monitor as with prices ranging from £10-£20.
Checked your monitor model and can get a like-for-like replacement for £20-£30
Your monitor may be fixable, but lack of parts listings on ebay suggests that finding replacement parts may be very difficult, unless it is some generic component. I would always prefer to repair something rather than throw it away, but if nobody else considers it economically viable to scavenge parts, didn’t seem like good use of my time.
I got a 24" Acer monitor for >£100. Was good enough to use as single monitor. secondary 4:3 monitor is now spare (considering a raspberry pi/nas project). Lots more desk space, much lower temperatures and screen looks so much better. I am hoping that modern LED backlighting may make it possible to keep this new screen for even longer