| 摘要 |
In a power supply device whose safety is improved, a backlight assembly and a display apparatus having thereof, the power supply device includes a printed circuit board, a transformer and a securing cover. The transformer is disposed on the printed circuit board to change a first input voltage into a second voltage, and outputs the second voltage. The securing cover covers a portion where the second voltage is outputted. Accordingly, when a securing cover covers a portion where the high voltage is outputted, the safety of the power supply can be enhanced.
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