it probably requires cleaning but if you've never disassembled your phone or dropped your phone before then there is a possibility that your LCD is dead...if you had dropped it before then there's a possibility that the contacts are just loose...anyway, try to disassemble it, clean the contacts and re-assemble it...if that doesn't work then your screen is definitely damaged and has to be replaced...FYI in Indonesia an L6 screen costs about 100000 IDR, which is about 10 US$...
Nokia 5110 > 6210 > 5110 > Motorola L6 and Nokia 6260 and Motorola E1 ROKR (downgraded to E398 / 07.D0 bootloader)
Sig by superbleeder
does the screen light up when you switch the phone on??
I broke the screen on one of my phones and when i replaced it it did not appear to work. I found that one of the chips also gets loose (and unless your good at SMD work you wont be able to solder it yourself). I have a piece of paper wedged between the chip and the back case and this keeps the screen working !!!
Unless you can live with this sort of modd then you will need a service center to fix it - sorry !!