Is brightness exact same as bias? - AVS | Home Theater Discussions And Reviews
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post #1 of 3 Old 05-21-2013, 02:44 AM - Thread Starter
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Are bias and brightness exactly the same? I know they both affect the darker levels,but It looks like brightness affects more the dark levels and bias affects more middle levels.Or am I wrong? I'm trying too balance the gamma.The tv does NOT have 10 point controls.

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post #2 of 3 Old 05-21-2013, 09:58 AM
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bias is brightness by color (R, G, B)... these are grayscale controls

brightness affects all colors (R, G, B) together

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post #3 of 3 Old 05-21-2013, 12:56 PM
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You should always re-check Brightness after adjusting any of the bias/offset controls and vice versa.

Gain controls affect the brighter range of each color (R G B)... so if you adjust any of those, you should re-measure your 100% white level to make sure it is still where you want it to be and adjust Contrast up or down if your 100% white got too bright or too dim (but you need a meter for this, you would never see it by eye).

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