Backlight but no image after LCD replacement.

[Barnickal]

Hi Guys. I used this teardown (Asus Transformer Infinity TF700 Teardown - iFixit) to help me replace a cracked digitizer. The first time, I didn't realise the machine was on and shorted out my LCD screen (which had been undamaged!!). After getting a new screen and cable, I have connected it all, but now find that the backlight works on the LCD but not the image!!! It works through HDMI and the touchscreen works too in this case. Is this an issue with the cable or the screen? Any help would be appreciated.
Thanks,
Nick