MrCunningham
Member
I keep seeing this misconception here.
No amount of time or research will allow LCD technology to overcome their flaws:
-the contrast will never approach that of a crt or plasma because LCD panel pixels do not produce light, they filter light from a backlight so you cannot control the brightness of individual pixels
No amount of 'led backlighting' or 'dynamic contrast' (just dimming the backlight) can solve this.
It's an issue inherent to the technology. (OLED and plasma are much superior to LCD because of this, as the pixels produce their own light just like with a CRT)
I'm not going to argue with you, wince you have clearly researched these topics a lot and know more than I ever will. But I will say that I did lazily tack that onto the end of my post. I guess what I meant to say was that LCD (OLED in particular) will get a little closer to CRT's to the point where your average person won't really notice the differences too much. But they will never match the performance of CRT's. Like you said, OLED's do solve the colour contrast issues but still fall behind in response times.
-the BIG one:
LCD tech* has one major glaring flaw that really REALLY hurts it in gaming (and does not nearly hurt it as much in movies where a lot of the time is spent in static scenes or slow panning scenes): The way it refreshes its images.
*and oled tech too , btw , so don't expect OLED to save us, despite it actually having light producing pixels -solves contrast problem- and having infinitely much better pixel response time (solves lcd smear and ghosting, but does NOT actually give you motion clarity anywhere near crt or plasma, I'll explain why now.
LCD (and oled) panels use a technique called 'Sample and hold'
What this means is that the pixels are continuously lit (because of the backlight)and that the pixels will (painfully slowly in the case of LCD tech, yes even with a 'fast' TN panel) turn to the correct orientation to filter through the correct color of light and then hold that state until it's time for the next frame.
2 problems with this, one BIG and one medium for lcd and not an issue for oled:
Medium: pixel response/transition time: lcd pixels are SLOW to reorient themselves
Grey to grey transition on a faster TN panel at high refresh rate might be 1 ms ish, but that's the marketing number, other color transitions are significantly slower, often up to like 8ms for an IPS panel (at 60 hz half of your frame duration may be spent transitioning a pixel to the right color.
This makes it so that your screen is showing you the wrong color pixel most of the time (let this sink in, really, it's such a glaring defect, defect is the only word that is right for it) , causing a very smeary image in panning scenes ( pretty much all the time in sidescrolling or first person games) or 'ghosting' (a ghost outline from the previous frame from the pixels not having changed yet, especially visible at high contrast edges in motion)
Right, and this is a big reason why LCD's have horrible response times in comparison to CRT's.
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If only you guys knew how many superior technologies that were in development (and promising + viable) were canned 4-6 years ago because of high LCD panel profit margins at the time.
You think you're supporting an industry and that its success and your money is accelerating technological innovation and advancement but it is quite the opposite.
This is actually not surprising, LCD's with LED back lighting are some of the cheapest monitors to produce and easiest to ship in bulk due to their light weight. Also, the warehouse space is like a fraction of what is needed in comparisons to stocking older CRT's. Companies are making a lot of money without investing a lot in overhead. It's a win for them, so why change this when the consumer has pretty much said "good enough?". Also, introducing newer technologies do take money and time to change the production methods used, which is something that most large corporations don't really want to deal with.