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Led backlit tv causes permanent eye damage!
After having vision problems after purchasing a LG LED-backlit TV unit (without knowing nothing about LEDs) I made a research now on LED backlit technology and since the LED lights are directed towards the viewer, watching a LED-backlit TV screen creates a direct health hazard to every viewer. I personally noticed that on my eyes vision after few months of watching LG Model # 42LH90 with LED-backlit screen and my vision became much worse, I need new glasses and my eyes now get tired just a few minutes after watching this TV. The screen is way too bright to watch it with covering one’s eyes when it goes bright. I now turned the LED lights completely off and the TV picture is dark and ugly, but this is the only way I can watch it now.
BEWARE: WATCHING LED-BACKLIT TV SCREEN PERMANENT EYE DAMAGE MAY OCCUR!
Originally posted by CarlosG
Manta -- I can't think of a reason why a blue LED would be any worse than looking at any colour LED. As standby indicators on appliances they are brighter than the old red and orange ones, so perhaps that is where that myth comes from.
What's all the fuss about blue LEDs? Surely a light is just a light, no matter what the color. How can there be a difference between blue and red, green, or amber?
In fact, blue light causes greater eyestrain and fatigue than other colors. It is harder for the eye to focus and causes greater glare and dazzle effects. It can also interfere with our internal body clocks, disrupting sleep patterns. Some researchers believe that even very low levels of blue light during sleep might weaken the immune system and have serious negative implications for health.
And because of Nakamura's innovation, blue LEDs really are different from old fashioned LEDs. They are much brighter.