Attend XDA's Second Annual Developer Conference, XDA:DevCon 2014!
5,783,129 Members 45,746 Now Online
XDA Developers Android and Mobile Development Forum

Off-Color Screen Streaking?

Tip us?
 
lorsoblu
Old
#1  
Member - OP
Thanks Meter 0
Posts: 52
Join Date: Nov 2009
Location: Austin
Default Off-Color Screen Streaking?

I haven't come across anyone else talking about this... lately, I've been noticing that the screen on my Epic seems to have some sort of issue displaying grays/tans/off-whites, and I can see darkish streaks on any image that has those sort of colors.

A perfect example of this is the Tweetdeck app's gray background. I have already traded in for a new Epic from Best Buy because the screen had really obvious darkening that shouldn't be there on the left side of the screen when I used that app, and I thought it was just a bum phone.

But with this new one, I've recently noticed the same sort of streaking (no big spots like before though, just thin lines).

What's really strange is that it almost looks like it is something UNDER the screen, not an issue with the SAMOLED screen, but it only happens on those colors, so maybe it is.

I'm still going through the process of deciding if this is enough to bring it back again (it obviously doesn't hurt functionality), but has anyone else experienced this?
 
APOLAUF
Old
#2  
Senior Member
Thanks Meter 8
Posts: 236
Join Date: Jun 2007
Location: Nashville, TN
If you're displaying a non-constant grayish background, positioning of the pixels in the PenTile matrix can produce unexpected patterns and even colors (the N1 could hbe coaxed into displaying a rainbow with just using white and black pixels strategically arranged.) On a steady background though, it shouldn't be a problem.

Sent from my SPH-D700 using XDA App
 
lorsoblu
Old
#3  
Member - OP
Thanks Meter 0
Posts: 52
Join Date: Nov 2009
Location: Austin
Quote:
Originally Posted by APOLAUF View Post
If you're displaying a non-constant grayish background, positioning of the pixels in the PenTile matrix can produce unexpected patterns and even colors (the N1 could hbe coaxed into displaying a rainbow with just using white and black pixels strategically arranged.) On a steady background though, it shouldn't be a problem.

Sent from my SPH-D700 using XDA App
So this is just the nature of the device's screen matrix? Would the PenTile matrix's "unexpected pattern" be unique to each device? Cause it always looks the same when it comes through, as it was with the massive darkening on my old Epic.

I have to say I can sort of see it even on solid gray screens (via the Dead Pixel Detect app), but it definitely is one of those "I'm really looking for it" sort of situations. I'm not looking at solid gray screens with NOTHING on it all that often.
 
tatoniss
Old
#4  
Senior Member
Thanks Meter 23
Posts: 182
Join Date: Nov 2008
I thought I was the only one. My second phone had it bad so I traded it in for a new one. This one seems to have it as well but not as bad. I notice it most on greys like when I pull the notification trey down. It is most apparent on the lowest brightness setting and solid colors.

Sent from my SPH-D700 using XDA App
 
candi3188
Old
#5  
Junior Member
Thanks Meter 0
Posts: 16
Join Date: Sep 2010
Location: Chicago South Suburbs

 
DONATE TO ME
I too am having this issue, and like you all, it only shows up on grayish backgrounds or the like. Is there any remedy for it? It's only a minor annoyance...
 
APOLAUF
Old
#6  
Senior Member
Thanks Meter 8
Posts: 236
Join Date: Jun 2007
Location: Nashville, TN
Perhaps one of you who is experiencing this can take a macro close-up and post it? You should have no irregularities on plain gray backgrounds.
 
lorsoblu
Old
#7  
Member - OP
Thanks Meter 0
Posts: 52
Join Date: Nov 2009
Location: Austin
Quote:
Originally Posted by APOLAUF View Post
Perhaps one of you who is experiencing this can take a macro close-up and post it? You should have no irregularities on plain gray backgrounds.
The only camera I have at the moment is the Epic, but I'll see what I can do tomorrow.

It looks like I may be returning this one regardless... the screen on the left side is starting to lift out of the plastic bezel.
 
Zysoclaplem
Old
#8  
Member
Thanks Meter 0
Posts: 39
Join Date: Apr 2010
I'm also having this issue with my screen. It's pretty annoying. Does anyone know if there a fix for this or is it a pure hardware issue?
 
ydoucare
Old
#9  
Senior Member
Thanks Meter 47
Posts: 443
Join Date: Dec 2008
http://en.wikipedia.org/wiki/PenTile_matrix_family

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes