Mobile Devices第 48 / 100 题
What does a laptop's inverter historically provide power to on older LCD screens?
a.The keyboard backlight
b.The webcam
c.The trackpad
d.The CCFL backlight
解析
On older laptops the inverter supplied high voltage to the cold-cathode fluorescent (CCFL) backlight. Modern LED-backlit panels no longer need an inverter.
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