DiscussWorldIssues - Socio-Economic Religion and Political Uncensored Debate - View Single Post - would a Hi definition tv tube ever be made ?

**JetePlentuara** · 08-19-2009, 11:04 AM

The contrast ratio is a comparison of the luminance of the brightest and darkest colours generated by a display; therefore, it's impossible to have an infinite ratio, even with a CRT, as the darkest colour will still have some luminance value. It is, though, significantly higher than an LCD display by virtue of the fact that the black colour is a genuine lack of emitted light; an LCD will always transmit some light, even at full polarisation.

I have seen a lot of reviews give panasonic a really hard time for advertising a contrast ratio of 1,000,000 to 1 by saying that isnt the true contrast ratio because it was measure comparing black color to white color ratio and a true test of modern screens uses color to color ratios instead. That seems like a whiny ass way for them to not make lcd's sound as bad as they are in comparison to a plasma in my opinion.

08-19-2009, 11:04 AM	#34
JetePlentuara Join Date Oct 2005 Posts 414 Senior Member	The contrast ratio is a comparison of the luminance of the brightest and darkest colours generated by a display; therefore, it's impossible to have an infinite ratio, even with a CRT, as the darkest colour will still have some luminance value. It is, though, significantly higher than an LCD display by virtue of the fact that the black colour is a genuine lack of emitted light; an LCD will always transmit some light, even at full polarisation. I have seen a lot of reviews give panasonic a really hard time for advertising a contrast ratio of 1,000,000 to 1 by saying that isnt the true contrast ratio because it was measure comparing black color to white color ratio and a true test of modern screens uses color to color ratios instead. That seems like a whiny ass way for them to not make lcd's sound as bad as they are in comparison to a plasma in my opinion.
	Quote