Contrast Ratios

Some articles on contrast ratios, contrast ratio, contrast:

LCD Television - Comparison - Image Quality - Contrast Ratio
... This limits their contrast ratios to about 16001 on the best modern sets, when measured using the ANSI measurement (ANSI IT7.215-1992) ... Manufacturers often quote the "Full On/Off" contrast ratio instead, which is about 25% greater for any given set ... This lack of contrast is most noticeable in darker scenes ...
Surface-conduction Electron-emitter Display - Comparison
... The shutters are not perfect and allow light to leak through, which means that the contrast ratio of an LCD is less than that of a CRT, and this causes the color gamut to be reduced as well ... create the shutter limits the viewing angles where this contrast can be maintained ... Canon's 55" prototype SED offered bright images of 450 cd/m2, 50,0001 contrast ratios, and a response time of less than 1 ms ...

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