Tone mapping in a TV is the process of converting the brightness and color information of HDR (High Dynamic Range) content so that it fits within the TV's actual display capabilities.Why is it needed?HDR movies and games may contain highlights mastered at 1,000, 4,000, or even 10,000 nits, but your TV might only be able to produce, for example, 600 nits. Without adjustment, very bright areas wou..