Bug in 320x240 lcd module?

[amdatlon]

Hello, sorry for bad English.
I have a problem with display 320x240 Ampire 320240A1
Whatever type the screen, one area remains empty. Manage it
with microcontroller Pic18f6722.

Please tell me where to look for problems.
I think that is added hardware, but I'm not sure.
This Image is empty zone. Two rows of 50 and 51 pixel.
Thank you.

 

[amdatlon]

Solved problem
Thank you
God !
Слава тебе Боже !

 

[ZASto]

For the info to other users of this forum,please be so kind to write up your "solution".

Regards from VLG

 

[amdatlon]

The problem is (was) in added hardware.
Short circuit in the ribbon cable to the LCD panel (glass). Between two tracks (50, 51) in the horizontal direction.
Manufacturing defect.