Colors aren't blending and look dull after replacement screen install

[tnel20]

well ats the title states. i just replaced my touchscreen and the colors aren't coming in as bright and cleas as they used too.Kinda looks like its on 256 colors when it should be 16.7millino colors if you know what i mean.Anyone know what could be the problem

[tnel20]

took it back apart and reattached everything again and the colors are now blending correctly but they still look dulllike its sleeping and i need to hit the screen before it brightens back up

[tnel20]

basically i have a black backround on my screen and it looks like its dark blue grey not black.kinda like the contrast is messed up

[tnel20]

Here are some pics to show what i mean . #1 and #2 are what it used to look like when looking at it straight on

http://i243.photobucket.com/albums/ff314/auditechs4/PICT1221.jpg
http://i243.photobucket.com/albums/ff314/auditechs4/PICT1225.jpg
http://i243.photobucket.com/albums/ff314/auditechs4/PICT1226.jpg
http://i243.photobucket.com/albums/ff314/auditechs4/PICT1227.jpg

[tnel20]

http://i243.photobucket.com/albums/ff314/auditechs4/IMG_0119.jpg

top is my phone with a new screen installed and the bottom is my friends phone on the same rom/backround setting

how do i go about fixing this