Nokia n70 display problems.

I want to repair a n70 but i have no clue about it's problem , the display itself isn't broken (i think) but it shous only white and some colored lines.
when i turn on the nokia sound is hearing but then the display has only colored lines i can still navigate the menu without the display.
http://imageshack.us/photo/my-images/571/img0002fz.jpg/
http://imageshack.us/photo/my-images/821/img0001zef.jpg...
http://youtu.be/G5LsXf3Yl6E