This has been discussed here on XDA in this thread starting at post 32
http://forum.xda-developers.com/show...=838379&page=4 , and on the MT4G T-Mobile Official forums at
I would like to thank everyone who has helped bring this issue forward and to help substantiate it. A big thanks to btbuck1, DADDYDC650, spitacular1, for getting this ball rolling. Thanks for your support and I know everyone who has received there better display device thanks us for bringing this to everyone's attention, including T-Mobile and HTC. I know at least some of the CSR's and employees have seen the thread in the official T-Mobile MT4G forum. So hopefully positive steps are in the works to correct things.
Here is a Video I shot of my new device with a good display compared to my wifes with a bad display. The video is not perfect as I'm a amateur and no tripod.
Here is a picture which shows the differences with the top pictures showing the washed out less contrast display and the bottom pictures showing the better clear higher contrast display with good viewing at all angles.
It is unclear if these different devices have actual hardware differences or if there is some change in the software which is making the differences. HTC has made a response to a user that it had something to do with a coating on the LCD and they were aware of the problem. This has not been confirmed as of yet.
EDIT: There seems to be one thing in common and that is the LCD version LCD-SO-C2 is the good screen. Some developers have said it is a SONY LCD. And the bad one is the LCD-SH-C2 is said to be from SHARP. I repeat I personally have no proof but well respected dev have mentioned this in their findings. So you be the judge. (2 different screens and 2 different LCD model numbers) makes some logical sense.
EDIT: There are a couple of ways to get the LCD information to know for sure which type of display you have. If you are rooted with Eng hboot you should be able to see the system info in hboot to view the LCD versions.
Second method for stock non rooted devices is to install Terminal emulator from the market. Restart your phone and immediately open the Terminal emulator and type "dmesg" without quotes. You will see a lot of data. Just scroll all the way back to the top and look around line 14-15 and you will see a line that ends with Panel Type=1 or Panel Type=2
Panel type 1 is the bad screen and Panel type 2 is the good screen.
Here is a picture of what to look for:
Thanks to shlongwoodian for his posting it and you can find the original post here: http://forum.xda-developers.com/show...5&postcount=88
EDIT: I have opened a new poll with multiple choice voting and with more options. Please visit this thread to get a better idea of where the good and bad screens are coming from etc.
Please vote in this poll and tell which display you have and what color you have?
IF THIS THREAD HAS HELPED YOU PRESS THE THANKS BUTTON!