Light therapy device and driving method thereof

Abstract

A light therapy device includes a substrate, a light emitting unit and a conductive layer. The substrate has a first surface and a second surface opposite to each other. The light emitting unit is disposed on the second surface. The conductive layer is disposed on the first surface. The conductive layer includes a conductive wire and a temperature sensing element which are electrically insulated from each other, and the conductive wire is electrically connected to the light emitting unit. The light emitting unit has a light-emitting wavelength range of

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