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Last year I bought the Sony KDL-46HX700 model and when I see the line-up for 2011, the HX720 model it is not really a step-up. No monolithic design and the problem with edge LED LCD displays – you are currently paying for style (and eco-friendliness!) over image quality. The majority of LED TVs released during 2010 use LED edge-lit LCD panel technology - a less complex derivative of LED lighting technology than local dimming. Simplistically speaking, these inch-thick edge-lit LED TV sets are nothing more than standard LCD TVs with LED (light emitting diodes) as their light source instead of CCFL. It has its pros as well - in particular with respect to their inch-thick profile and ultra-low power consumption.But edge-lit LED TVs can never deliver the same level of picture quality as full array LED local dimming technology. Screen brightness uniformity and side viewing discoloring due to a restricted viewing angle are the main culprits here. leading to a performance that falls short of their high price.
LED LCD TVs, yet it also produces a sort of a subtle halo effect instead of pure blackness in dark areas adjacent to bright parts of an image. This is due to light spilling over from light to adjacent dark areas in the image. Some refer to this as 'blooming' as a result of the way dark pixels at the edges of a dark object adjacent to bright objects appear brightened as well.
Another issue that appears to be common among all LED LCD HDTVs and that emerged in all LED LCD HDTV reviews so far, is that their picture deteriorates at a much faster rate with off-angle viewing than in the case of LCD panels using standard backlight systems. The deterioration is such that even moving just a single seat on either side of the optimum center viewing position leads to washed-out colors and a worsening of the halo effect already referred to above.
Edits: 03/09/11Follow Ups:
LED LCD sets make everything look fake. They make film look like video.
"Lock up when you're done and don't touch the piano."
-Greg House
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Ageed, tho, it was unbelievably fake looking with it on.
"I'd like to own a squadron of tanks"
Other than the thickness, which may indeed be a priority for some folks, I believe plasma screens offer a better picture & presentation.
Smile
Sox
In the top-line range of the Sony Bravia HDTV displays Samsung and Sharp are there main LCD panel manufacturers. For financial reasons, Sony will increase the percentage of LCD TV panels procured from Taiwanese manufacturers from the current level of 30% to a quite alarming 50%, according to Japanese national newspaper Yomiuri Shimbun. This means that in the near future, half of the LCD panels installed on Sony Bravia HDTV displays will have come from factories in Taiwan.
`
Smile
Sox
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For off-center viewing, the Sony LED sets must be the worst of any major brand. I mean I didn't have a protractor out, but they are pretty ridiculous and only make sense in the smaller sizes or for a single viewer.
From the front of the TV, the halo is barely visible and even though it is visible and sometimes distracting, I think it really contributes to better picture quality overall. First and foremost it increases black depth and adds intensity and depth to pictures. But that the halos increase significantly when viewing the TV from a wide angle. The picture shows this effect and even though the effect has been enhanced to illustrate the point, it is certainly visible in practice.
Edits: 03/09/11
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