http://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/ Engadget HD Comments for LCDs switching to cheaper, lower quality white LED backlights http://www.engadgethd.com/media/feedlogo.gif http://www.engadgethd.com en-us Copyright 2009 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/http://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/
Current LED LCD's are just too expensive.]]>Oct 10th 2008 1:58PMhttp://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/http://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/
LEDs are generally driven by switching power supplies, so in theory they flicker too. The switching rate is going to be probably 200,000 Hz or higher (perhaps even 100x higher), so you'll never see it either.

The white LEDs in question use single-color LEDs exiciting phosphor coatings. Since they use phosphors like a fluorescent light, they have similar color rendition to fluorescent light in may ways.

Not that 3 color LEDs gives great color rendition either, since LEDs produce line spectra too (perhaps not as tight as phosphors though).]]>Oct 10th 2008 4:03PMhttp://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/http://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/Oct 10th 2008 2:35PMhttp://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/http://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/Oct 10th 2008 2:40PMhttp://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/http://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/http://www.hdupdate.com]]>Oct 10th 2008 4:10PMhttp://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/http://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/
Samsung A950/81 - white
LG LG90 - white
Sony XBR8 - tri-color
Sharp XS1U-S - tri-color (just announced)

Not sure what else is coming.]]>Oct 11th 2008 2:17AMhttp://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/http://www.engadgethd.com/2008/10/10/lcds-switching-to-cheaper-lower-quality-white-led-backlights/Everyone is on this bandwagon of OLED's as the future.

Sony and Samsung say they should have large OLEDs around 2010.
That would give LEDs only a REAL 3rd generation on the market by the time larger OLEDs are released.

Granted it might turn out that the LEDs will be the lower end at that time with the OLEDs with the premium prices.

I will say the times I've seen the LED models in person they lose quite a bit of color detail at side angles. It looks perfect sitting right in front of the set but the colors wash out at wide angles.
John-MichaelDelValle.com]]>Oct 11th 2008 11:05AM