Dynamic Contrast Dynamic Contrast decreases the TV’s backlight brightness in dark scenes and increases brightness in highly-lit scenes. Getting the best picture detail requires the right balance between brightness and contrast, too much or too little of either is a problem. Toshiba’s Dynamic Contrast technology automatically adjusts the LCD panel backlight, depending on the level of brightness required by the original signal. Dimming the backlight enables the system to reproduce fine detail and render dark scenes more realistically, with blacks having much greater depth. Increasing backlight brightness for scenes requiring more colour, produces more vibrant images with a greater intensity.