Oh no NVidia, English is not your primary language too? J/K *Me runs and hides*
Originally posted by Samwise
More like 10,000:1
a good guess. But its actually higher than that. on my hometheater magazines that i subscribe too, a hdtv crt they tested have 23,000:1 contrast ratio.
Its actually higher than that because the equipment they use to test the black level of a crt light output read no lower than .001 ft lambert.
But the CRT 0 IRE black level goes lower than .001 ft L. And the equipment couldn\'t test it below that, so when you divide the ft L of 100 IRE white level to ft L 0 IRE black level, you get the contrast ratio.
Say if a CRT can produce a light output of 30 ft L for 100 IRE white. Divide that with .001 ft L for 0 IRE black you get 30,000:1 contrast ratio.
But since CRT produce very deep black and the test equipment couldn\'t go lower than .001 ft L. The contrast ratio should be more than 30,000:1 if you divide lower than .001.
Not to mention if you measure the light output of the blackest level and the whitest level. It should be even lower than .001 ft L for 0 level black (blacker than black) and higher than 30 ft L for 256 level white (whiter than white). meaning, the contrast ratio should be even more higher than 30,000:1. So, its safe to assume some CRT can reach up to 50,000:1 and maybe as high as 100,000:1 contrast ratio.
I remember watching the video of Sony PS3 demo on the E3 and on the screen they projected said that the PS3 can produce a contrast ratio of 50,000:1. They also say that how much our eyes can see. So prepare to be blow away with the color gradiation from dark to light on ps3 video games...
I remember reading somewhere that our eyes can see up to a few hundred thousands contrast ratio but 50,000:1 sounds really close.
