well as you guys may have noticed plasmas now days look even more dim in showroom,more so in 2009 plasma why?
well the reason mainly due to new energy efficiency norms.now u may have noticed even some power hungry sets get energy star certified.plasma no doubt have improved their power efficiency standard,but not all are really truly energy star complaint
whats with plasma brightness?
well in order to understand why plasma intensity of whites decreases as the area of whites shown increases,we must note that every plasma have a ABL circuit or (automatic brightness limiter).
now as the percentage of white in the screen increases ,when about 30% of the screen is showing white ,the ABL will kick in , from then on the whites looses its intensity.
when at 90% of the screen is showing white,the brightness of white will be as low as 1/3rd of what it was when at 20% or 30% white .
now if u look at scenes showing snow ,u will notice that snows whites doesn't really look like they are supposed to look.
now the only way for plasma manufactures to overcome this is by making plasmas more efficient,even then they still need ABL circuit to limit the brightness,if it doesn't have a ABL circuit the plasma cells will indeed show really bright white before it goes stone dead or kaput or even explode.
now the new energy laws aren't helping this either,the only way they are getting it certified is by rigged tests TVs showing really low brightness,by default.
or in places where they have tougher testing standards ,plasma manufactures have no choice but to restrict the brightness of their plasma,in which case it may stop plasma from loosing its brightness when percentage of white shown increases,but at the cost of brightness which will be low.
well the reason mainly due to new energy efficiency norms.now u may have noticed even some power hungry sets get energy star certified.plasma no doubt have improved their power efficiency standard,but not all are really truly energy star complaint
whats with plasma brightness?
well in order to understand why plasma intensity of whites decreases as the area of whites shown increases,we must note that every plasma have a ABL circuit or (automatic brightness limiter).
now as the percentage of white in the screen increases ,when about 30% of the screen is showing white ,the ABL will kick in , from then on the whites looses its intensity.
when at 90% of the screen is showing white,the brightness of white will be as low as 1/3rd of what it was when at 20% or 30% white .
now if u look at scenes showing snow ,u will notice that snows whites doesn't really look like they are supposed to look.
now the only way for plasma manufactures to overcome this is by making plasmas more efficient,even then they still need ABL circuit to limit the brightness,if it doesn't have a ABL circuit the plasma cells will indeed show really bright white before it goes stone dead or kaput or even explode.
now the new energy laws aren't helping this either,the only way they are getting it certified is by rigged tests TVs showing really low brightness,by default.
or in places where they have tougher testing standards ,plasma manufactures have no choice but to restrict the brightness of their plasma,in which case it may stop plasma from loosing its brightness when percentage of white shown increases,but at the cost of brightness which will be low.
and therefore there will always be people who are happy to buy plasmas. As LCDs get cheaper and brighter (with LED backlights and so on), more and more of the less-informed masses will migrate to LCD and plasma will likely become a niche segment.
