Does LED Backlight Monitors fix Backlight bleeding?

L

Ladic

[H]ard|Gawd
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does it also show colors like black a bit more corrrectly?

Whats advantage of LED blacklight monitors?
 
better color reproduction and less dimming over time are two commonly cited benefits, I believe. Also reduced power consumption (i think)
 
In a word, no. It does not reduce bleeding. The advantages I've heard and read about are mentioned in the post above mine.
 
But it should have better homogenity :) Which could also help with the bleeding, shouldn't it?
 
Biges said:
But it should have better homogenity :) Which could also help with the bleeding, shouldn't it?
Click to expand...

I've only seen a small sampling of LED backlit monitors. Out of those that I have seen, their brightness is often so high that the back light bleeding is worse than on the older non-LED backlit models.
 
I think color reproduction is its high point, that and the led backlight screen on my laptop is so much thinner than the standard LCD panel that comes with it.

Though im pretty sure backlight bleeding is still here everytime I start her up I can see it clearly on the black background of the windows loading bar
 
Crotan said:
I think color reproduction is its high point, that and the led backlight screen on my laptop is so much thinner than the standard LCD panel that comes with it.

Though im pretty sure backlight bleeding is still here everytime I start her up I can see it clearly on the black background of the windows loading bar
Click to expand...

I'd agree. The color reproduction is key.
 
Uniformity and backlight bleed, I think, are addressed only by 'intelligent' LED backlight arrays. They use active zoning such that different LED clusters can have different levels of brightness depending on need. The majority of LED backlit LCD displays though, basically the ones you can afford, only have a 'dumb' LED array in which the entire array only has a single, uniform brightness level. This makes them no better, practically, than a standard CCFL backlight.

EDIT:

http://en.wikipedia.org/wiki/Individually_Modulated_LED

I believe thats the name of the technology I'm referring to.
 
Backlight bleed has more to do with panel construction than the tech used in it. All LCDs have backlight bleed or BLB the trick is to make it even and to keep it to a minimum. It is really a QA issue.

Dave
 
Active matrix OLED does, because it has no backlight. A black pixel is off. On my Cowon S9, aspect ratio bars are pitch black. As for LED backlit LCD's, I'd wait for some reviews before passing judgment.
 
simple answer to the OP

Locally Dimmable: Will eliminate backlight bleeding but not uneven whites
Edge lit: No to both


The main problem with LCDs is that the light from LED/CCFL has to be deflected around the screen. This process is a PITA because even the slightest variation can cause problems. And most manufactures care more about quantity than quality, and I can't blame due to the shear complexity of LCDs. That's what users find that some LCDs have colored tint (usually green or pink), backlight bleed and uneven whites.

Locally dimmable LEDs will fix backlight bleeding, but it wont fix even whites. The edge lit LED on the other hand will suffer from the same problems as the CCFL based LCDs.
 
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