Is 15000 1 at 50Hz better than 6500 1 at 100Hz?

Answer 1

The question refers to two very different characteristics of a television. The contrast ratio, in this case, 6500:1 or 15000:1 is a measure of how bright and dark the whites and blacks are. The number is very simplistic and doesn't describe how the near blacks and near whites will be shown - that can best be assessed by looking at the screen. 50Hz (60Hz in the US) is the standard broadcast frequency. Any television that claims to be a 100Hz (US 120Hz) display is actually making up frames and fields to insert between those that are actuall broadcast. Although this reduces flicker, it also adds other errors caused by the complex process of adding the fields. Sometimes, the errors can be more disturbing than the flilcker. Once again, the only way to assess it is to watch the image. The most challenging image tends to be fast moving sport or images with lots of movement. The only sensibble answer to the question is to look at both screens and decide which one looks best. After all, you will be the one watching it, so get something that looks good to you.