It could be labeled Brightness or Black Level.

它可能被标记为“亮度”或“黑电平”.

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The brightness setting on your television determines the overall black level of the picture.

电视上的亮度设置决定了图象整体的黑度.

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Locate the brightness control for your display device. It could be labeled Brightness or Black Level.

找到显示设备的亮度控制. 它可能标记为“亮度”或“黑色”级别.

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