Hi, I've been searching the web desperately for the last couple of days, it looks like I've finally found the right place to talk about this.
I bought an LG 32LH40 yesterday, and I'm absolutely thrilled with it. Or, I was, until I noticed some pretty nasty blurring of reds and blues. Since this thread is filled with people who own this set, I can give you an example of where the problem is easily visible and you can (please, please) tell me if you have the same problem.
This site has a bunch of color calibration images, but the one for simple contrast shows it best: lagom.nl/lcd-test/contrast.php
(you need a www before that, I think. It's my first post, I can't do URLs yet...)
On my screen (regardless of any adjustments) the top blue bar is blurred at every step of brightness. It also blends into the background slightly. The blue isn't TOO bad, really. I can probably live with it.
The next line (green) looks perfect, as does the following teal line.
The red line though... it's a mess. At every step of brightness, the red is blurred together. It looks like crappy JPG compression, is the best way to describe it. It also blends into the background a bit. All red text seems a bit blurry on this set, especially against a black background.
The purple right below the red is also quite bad.
Strangely, the yellow is absolutely flawless, and the gray is also.
Does anyone know what might be causing this problem? Here are some of the things I've tried to fix it:
-Gone into CCC and tried different pixel formats (rebooting after each)
-Adjusted color intensity settings on the TV
-Individually adjusted all red settings in advanced mode on the TV
-Recalibrated the display about 20 times with Windows 7's built-in color management
-Reset all settings, both on TV and windows, several times
-Tried a new, shorter HDMI cable (this one I verified is definitely HDMI 1.3a spec)
-Tried a VGA cable
-Tried different HDMI ports
-Tried naming the HDMI port "PC"
-Tried gaming mode and all other modes
-Adjusted sharpness, brightness, contrast
-Changed EVERY advanced picture control setting
I'm a very computer-literate game developer, but I'm at my wit's end trying to find out why this positively goregous TV set, which is better than anything I expected in every other regard, has this one bizarre problem.
I'm down to two last ideas - one, tomorrow I'll try getting a DVI-D to HDMI cable. I've read that this can sort of confuse (?) the graphics card into not trying to "enhance" the picture by making it think it's connecting to a regular monitor, not a TV. It's a stretch, but I'm desperate. The only other possibility is exchanging this thing for another one, or else returning it altogether.
...But that's such a painful idea! Going back to a 22" TN panel (albeit a very good Samsung) is torture after using this thing for two days. This set's so amazing for movies and general-purpose use, but I need it to have good color accuracy and sharpness or it's useless to me for the purpose I bought it.
my system specs are
Windows 7 RC x86
Core 2 Duo E8400 @ 3.6 ghz
4 gigs of RAM (yes, only 3 are usable right now)
MSI Radeon 4890 w/ 1 gig GDDR5, overclocked (not much)
Creative X-Fi Fatal1ty Platinum (I think)
I also tried it on an HP laptop w/ VGA-out. Same problem. It was equipped with an ATI graphics chipset though, so I will try my old 8800 GTS in my main computer tomorrow to see if it's an ATI thing... just to rule that out. I think this might be an intentional color-processing thing by either the graphics card or the TV, since after all if both red and blue are screwy, and they must be combined to make a lot of other colors, why aren't those other colors getting screwed up as well? So far I've only noticed purple (red+blue, duh) is noticeably blurry besides red and blue on their own. I will take pictures tomorrow.
edit 2: Stayed up a few extra minutes, I hope it was worth it. Here is a high res picture of how the bars from the above pattern appear on my tv/monitor: mediafire.com/download.php?m2wd3wjjizm