液晶电视本身并不能发光，需要依靠背光源才能显示画面。动态背光技术可以在一定程度上节约能耗以及保 护视觉。本文设计了一种利用图像场景以及环境光来动态控制背光亮度的方法，并在MSD3463 芯片上应用，取得良好效果。

LED television can not give out light, but only display picture by backlight. Dynamic backlight method can save energy and protect our eyes to some extent. This paper designs a dynamic backlight control method of LED television based on picture level and ambient light, and applies this method to MSD3463 chip-set. From the information of our customers, the result is good.