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advantages of a LCD-LED backlit vs LCD? - Page 2

post #11 of 14
LED Backlit monitors are far superior to CCFL backlit monitors (and TVs for that matter) for a few reasons. I service monitors for a living and I get to test out quite a few and do numerous side by side comparisons.

Others have already mentioned a few of the benefits, but I will list as many as I can think of:

LED Back Lit:

1: Better brightness
2: Less heat produced (by quite a lot)
3: More uniform brightness
4: Less Power Usage
5: Longer life span
6: Higher reliability
7: Thinner
8: Lighter
9: No warmup time
10: Never flicker

The number one thing that breaks down in a CCFL monitor is the inverter circuit that requires high voltage to run the backlights. This is a very common fault. Since these backlights pull more power than LEDs, this puts more stress on the power supply resulting in a higher failure rate for power supplies as well. Often when these circuits fail and are repaired we find that the CCFL backlights have been damaged and will flicker for a minute if the monitor is shut off or put into power save mode, and then turned on again right away. After running for a few months this fault may go away.

The CCFL backlights themselves are also a problem. Many defective monitors that come into our shop have failed CCFL backlights. So far I have never had even one monitor come in with a failed white LED backlight.

It's really a no brainer. If you can find an LED backlit monitor at the same price and same feature set as a CCFL monitor, grab it. In a couple of years CCFL in display devices will likely fall completely into obscurity.

Note, on my desk right now I am using a 27" LED backlit monitor and a 23" CCFL back lit monitor. Someone mentioned that the whits are bluer on LED backlit monitors, but what I see with my eyes is that the whites on CCFL back lit monitors are yellower. I have calibrated both monitors as best as they can be, and putting a white page up so half is on one monitor and half on the other, the LED backlit monitor looks white while the CCFL backlit monitor looks to have a slight yellowish tint.

Hope this helps you out a bit.
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post #12 of 14
good post by megatroid although 3 may or may not be true, depends on the kind of backlighting a bit I think. Edgelit leds can have issues with consistency throughout a screen (particularly with blacks).

Local dimming is the way to go (although it is probably difficult to find that information) as it is the only type of led that provides better black levels.

In short if you are looking traditional lcd vs led it's almost a sure shot that the led is better if not image quality wise then for other reasons as stated by Mergatroid.

Not to derail this thread but ideally id' take plasma monitors if they could figure a way to negate the threat of burn-in completely. screw the environment and energy savings, I want my deep blacks and natural looking colors!
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post #13 of 14
my LG 2362D gives off quite a bit of heat
the top of the monitor has lots of ventilation
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post #14 of 14
Quote:
Originally Posted by trulsrohk;12538531 
good post by megatroid although 3 may or may not be true, depends on the kind of backlighting a bit I think. Edgelit leds can have issues with consistency throughout a screen (particularly with blacks).

Local dimming is the way to go (although it is probably difficult to find that information) as it is the only type of led that provides better black levels.

In short if you are looking traditional lcd vs led it's almost a sure shot that the led is better if not image quality wise then for other reasons as stated by Mergatroid.

Not to derail this thread but ideally id' take plasma monitors if they could figure a way to negate the threat of burn-in completely. screw the environment and energy savings, I want my deep blacks and natural looking colors!

Yes, the distinction between a desktop monitor and a TV is pretty blurred already, so you're right that local dimming is better, but arguably it's not a feature seen a lot in desktop monitors. It's more of a television feature. But, what makes a TV now? Basically a tuner I suppose. I guess what makes a monitor or TV now is partly subjective as well. Monitors used to have higher resolution and better features, but now that most monitors over 19" and TVs are 1080p I suppose it's not going to make much of a difference any more.
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Nukeyork
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