[Q] Phone working but no display after flashing new rom

I was using JB 4.1.1 previously and decided to flash to a new 4.1.2 rom this morning. Everything was fine until the Samsung animation screen. There is no display. My screen is completely dark. But the phone responds when I touch the screen and the home button as well as the power button.

I thought this is the LCD problem but when I boot to Recovery, the display turns on and everything is fine. So I decided to flash to another rom but the same problem occurs. Did I brick my phone? Any solution guys? Some help would be very much appreciated.