Patent ID: 9148913
Filing Date: 2015-09-29
Classification: H05B

Abstract:
1. A backlight module, comprising: a first coil; a first driving circuit, electrically connected to the first coil for controlling the first coil to produce a first magnetic field; a second coil, configured to receive the first magnetic field and providing a first induction voltage according to the first magnetic field; a rectifying circuit, electrically connected to the second coil for converting the first induction voltage into a first driving voltage; a light emitting unit, electrically connected to the rectifying circuit to provide a backlight according to the first driving voltage; and a first substrate having a first surface and a second surface opposite to the first surface, wherein the first coil and the first driving circuit are disposed at a side of the first substrate the same as the first surface, and the second coil, the rectifying circuit and the light emitting unit are disposed at another side of the first substrate the same as the second surface, wherein the light emitting unit comprises a light emitting diode light bar, and the second coil is disposed at a second substrate of the light emitting diode light bar.