Two great reviews just published on LG's 4K OLED TVs.
Flatpanelshd and here's another great LG Flat OLED TV review at
www.reviewed.com.
Here's some of my additional thoughts on why we are all seeing the picture quality advantages of OLED TV.
OLED displays clearly exceed in contrast and now with the reported accuracy in low luminance and near black, the image is visibly better than LCD/LED displays.
A 4K OLED display looks different than LCD based 4K display technology. Other than the advantages of infinite contrast and control over each individual sub-pixel of color and luminance, emissive displays generate the images with phosphors that light up to generate the analog light-waves directly to our eyes, whereas LCD based displays use multiple layers comprised of the following elements:
1. Very bright backlighting layer
2. Initial polarizing filters
3. Thin Film Transistors, TFT
4. A layer of Liquid Crystals (the actual LCDs)
5. A physical layer of RGB color filters
6. Another final layer of polarizing filters
7. The protective front sheet to seal and protect the panel
In addition to all of the filtering layers and processes LCD displays use to create the final image they have adopted edge and back-lit LED dimming schemes that bend and manipulate the light to help improve black levels across the screen in local zones. Although overall an important upgrade to the contrast with some control of the black level the display can produce, unfortunately, local dimming adds some anomalies that are not an issue for emissive displays.
Properly set-up LG's new Flat EF9500 emissive display can reproduce a smoother and more defined picture with detail throughout its very large tonal range. Individual pixel illumination is how the human eye first saw motion pictures in the commercial cinema on film projection and then in the early 40's with B&W TV on the analog CRT.
In the mid 90's the next generation of emissive display technology came along; the plasma display, PDP. Since the end of PDP in 2013 we have been pushing the technology advancements of LCD/LED and they have come a long way and today's LCD/LED deliver a very good picture, but it just can't produce the detail or precision that is achieved with 8,300,000 of the thinnest and most accurate individually controlled light sources of 4K emissive display technology, regardless if it's CRT florescence, or PDP phosphors burning or our latest iteration, OLED direct light emitting bulbs.
With all this said, LCD/LED TVs have come a long way in advancing the performance and overcoming many of the inherent anomalies. This year's premium TVs are delivering excellent picture quality and even with LG's latest price breaks most LCD/LED TVs costs less and are more widely available and come in larger sizes.
Thanks to LG for blazing the trail of the highest performance display technology, OLED!
-Robert