背光显示是指当使用者使用GPS设备时，机身上的显示屏能否发出背光，以便更清晰地显示内容。
7英寸的LED背光显示屏看上去十分漂亮。
中英文液晶高量底背光显示，中英文可自主切换，操作更简单。
The LED display with light backsie, also easily changed between English & Chinese, with more simply operation.
LCD屏幕虽然有背光显示，但是背光只有在无线电和播放CD的时候才会打开。
The LCD has a built-in backlight that makes the clock symbol visible, but the backlight only comes on when the CD or radio is explicitly turned on.
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