(An example for Dynamic Contrast function)
As you can see in the above picture that after increasing the white and black in the picture, the picture looks more good and clear. This is the function which is being done by the Dynamic Contrast technology.
More about Dynamic Contrast function :
The contrast ratio is a property of a display system, defined as the ratio of the luminance of the brightest color (white) to that of the darkest color (black) that the system is capable of producing.
A high contrast ratio is a desired aspect of any display. It has similarities with dynamic range.